Rolls-Royce Archives
| Identifier | Entry | ||
| B001_X106 TO X 110-page001 | Brake area and weights of the Peregrine model, comparing it to the 25hp model and suggesting an increase in rear drum width. | ||
| View original record | X106. To By. from Hs/Rm. Hs/Rm.5/KT.19.8.32. PEREGRINE BRAKE AREA. The Peregrine Wts. are } .637 tons front Empty } .75 tons rear. The brake areas/subtracting rivet countersink area) are 74 sq.ins… | ||
| B001_X106 TO X 110-page002 | On brake and servo calculations and test results for the Peregrine chassis. | ||
| View original record | For Files. X106. 25.8.32. PEREGRINE BRAKES & SERVO. Attached are the calculations for the braking ratios on the first Peregrine chassis built up to RR. Sch.192. Test bed results show that the servo… | ||
| B001_X106 TO X 110-page003 | Series of four graphs showing the results of Peregrine servo efficiency tests on front and rear brakes under various conditions. | ||
| View original record | Top Left Graph: PER SERVO EFFY TESTS. (FRONT BRAKE READINGS) Diagram labels: A, INPUT, FRONT, REAR BRAKES FRICTION SETTING OF ARM DOES NOT EFFECT RESULTS. SNAP READINGS PROGRESSIVE READINGS COLD HOT… | ||
| B001_X106 TO X 110-page004 | Blueprint analyzing the Peregrine brake system, detailing servo torque multiplication with a diagram, data table, and performance graph. | ||
| View original record | TITLE: PEREGRINE BRAKES - RR Sch 192 REFERENCE (TOP RIGHT): Hs. 692 CALCULATION FORMULAE (LEFT SIDE): - DIRECT TO REAR: Numerator values: 1.425 x 2.0 x 2.5 x 4.8 x .325. Denominator values: 1.625,… | ||
| B001_X106 TO X 110-page005 | Technical memorandum discussing issues with violent front braking on Peregrine brakes and proposed solutions. | ||
| View original record | To BY. from Hs/Rm. C. E. RHC. x106. Hs/Rm.17/KR. 8.9.32. PEREGRINE BRAKES. On the original Peregrine we got most violent brake thumps, and obviously too much front braking. We therefore made careful… | ||
| B001_X106 TO X 110-page006 | Blueprint detailing the calculations and performance graph for the Peregrine Brakes system. | ||
| View original record | Title: PEREGRINE BRAKES - R.R. Sch- 192 Reference: Hs. 692 Diagram Labels: Top Left: 12" DIA DRUM, .325 CAM, 13.150, 5.250, 1.425, 1.625, 1.875, 1.25, 2.0, 3.0, 2.5, 1.5, 3.875 Top Right: 12" DIA… | ||
| B001_X106 TO X 110-page007 | Tests to determine the efficiency of the Peregrine brake linkage. | ||
| View original record | x106 R. From Hs/Gry. C. Sg. Wor. C. E. Da. C. Hy. Hdy. Hs/Gry.7/KT.14.10.32. PEREGRINE BRAKES. We have carried out tests to determine the efficiency of the various parts of the Peregrine brake… | ||
| B001_X106 TO X 110-page008 | Table detailing theoretical and actual Peregrine brake linkage efficiency. | ||
| View original record | PEREGINE BRAKE LINGAGE EFFICIENCY DIRECT TO REAR LOAD ON PEDAL [P] 37 65 125 160 200 EFFORT ON 12" LEVER ON CAM THEORETICAL [.235 X P] 8.7 15.3 29.4 36.0 47.0 ACTUAL 5 10 20 25 29 EFFICIENCY .575 .65… | ||
| B001_X106 TO X 110-page009 | Data sheet detailing the efficiency calculations for the pedal cross shaft, and rear and front brake equalizers. | ||
| View original record | PEDAL CROSS SHAFT LOAD ON PEDAL [P] 110 145 175 INPUT TO SERVO ON 12" LEVER THEORETICAL [.301 P] 33.1 43.6 53.0 ACTUAL 30 40 50 EFFICIENCY .905 .92 .94 REAR BRAKE EQUALIZER INPUT AT 12" [P] 17 30 40… | ||
| B001_X106 TO X 110-page010 | The inefficiency of Peregrine brakes, comparing servo performance and recommending design changes. | ||
| View original record | X106. R. From Hs/Cry. c. to Sg. c. to Wor. c. to E. c. to By. c. to Da. c. to Hdy. Hs/Cry.1/WA.2.11.32. PEREGRINE BRAKES. We have been trying to find a reason for the inefficiency of the Peregrine… | ||
| B001_X106 TO X 110-page011 | Comparative table of servo and brake particulars for 40/50, 20/25, and Peregrine car models. | ||
| View original record | SERVO AND BRAKE PARTICULARS COLUMN HEADERS: 40/50, 20/25, PERE: PEREGRINE SIDE NOTE: S = TORQUE MULTIPLICATION CAR WEIGHT: 48 CWT, 35 CWT, 28 CWT BRAKE UNITS FROM SERVO BRAKING: R: 272 x S, 220 x S,… | ||
| B001_X106 TO X 110-page012 | Calculations for alterations to Peregrine brakes to align them with the 20/25 HP model. | ||
| View original record | γ 106. For Files. 7.11.32. ALTERATIONS TO PEREGRINE BRAKES TO BRING IN TO LINE WITH 20/25 HP. Built to N.Sch. we have :- Peregrine 220 Direct + 193 S to rear + 301 S to front. 20/25 HP. 377 " + 220 S… | ||
| B001_X106 TO X 110-page013 | Alterations to a lever and the rear brake adjustment system. | ||
| View original record | -2- (3) Alter 2.00 lever G.100958 to 5.00 (4) Fit 20/25 type adjustment of rear brakes. We have instructed this for 3 P.II in Hs/Gry.4/MA.7.11.32. Hs/Gry. | ||
| B001_X106 TO X 110-page014 | Proposals for alterations to the Peregrine Brake System to improve braking and reduce servo work. | ||
| View original record | 8156 R. From Ha/Gry. c. to Mr. c. to W.R. c. to L. c. to Da. c. to Ry. c. to H-W. Ha/Gry.2/Ha.9.11.32. PEREGRINE BRAKES. ----------------- We are sending you our proposals for alterations to the… | ||
| B001_X106 TO X 110-page015 | Alterations to the servo braking system, focusing on servo diameter, pressure, and heat generation. | ||
| View original record | -2- Hs/Gry.2/Ma.9.11.32. Chat'd. We can obtain this by altering the levers as shown in the accompanying sketch. We think that the increase in servo diameter should be used not to increase the amount… | ||
| B001_X106 TO X 110-page016 | Blueprint showing modifications to the Peregrine brake system to bring it into line with the 20/25 specification. | ||
| View original record | 13 150 5.250, 1.425, 1.425 1.625, 1.625 1.5 ALTER TO 5.000 .325 CAM 2.0 2.750, 3.0 2.5, 4.8 3.4 ALTER TO 3.140 .325 CAM, 3.5 2.0 1.625 1.625, 1.875 6.5 3.875 ALTER TO 1.230 MODIFICATIONS TO PEREGRINE… | ||
| B001_X106 TO X 110-page017 | Comparison of braking units for four car models, with analysis and proposed improvements for the J.III and Peregrine models. | ||
| View original record | 8 106- For Files. 11.11.32. 7360. x5360 J.III BRAKES & PEREGRINE. Comparing the four Cars on the road we get:- Braking Units. 40/50. 20/25. J.III peregrine. Direct. 377 377 240 220 Rear & Front Servo.… | ||
| B001_X106 TO X 110-page018 | Note on making the brake adjustment for the 20/25 model infinitely small. | ||
| View original record | -2- The brake adjustment should be made like the 20/25, i.e. infinitely small. HS/Rn. | ||
| B001_X106 TO X 110-page019 | Confirming instructions for stronger rear brake actuating shafts for the Peregrine model to reduce sponginess. | ||
| View original record | x106. By. From Hs/Gry. Hs/Gry.5/MA.17.11.32. PEREGRINE BRAKES. This is to confirm that you are issuing instructions for stronger rear brake actuating shafts for Peregrine. We find that the torsional… | ||
| B001_X106 TO X 110-page020 | Braking and servo capacity issues for the Peregrine and Bensport models. | ||
| View original record | HS. } FROM R. DA. } HDY. } X106 RL/M19.11.32. X.4027 X.4553 X.1559 C. to SG. WOR. E. BY. BRAKES - (ESPECIALLY REFERRING TO PEREGRINE & BENSPORT). We are agreed that these have got somewhat wrong due… | ||
| B001_X106 TO X 110-page021 | Typed memo discussing the design and development of a new servo and braking system. | ||
| View original record | (2) This, and the reduced speed, may make a considerable difference, but at the same time we ought to increase the area of the surface all that we conveniently can. This I understand will be done. On… | ||
| B001_X106 TO X 110-page022 | Calculations for Peregrine brakes concerning servo stroke and braking distribution. | ||
| View original record | Y 106. Copy for files. 26.11.32. PEREGRINE BRAKES. With present servo stroke we require Direct 377 units and servo 430XS units. (same as 20/25) With 15% larger servo this can be :- 377 + 500S Arranged… | ||
| B001_X106 TO X 110-page023 | Issue with the Peregrine front brakes related to the swinging arm lubricator. | ||
| View original record | To Hy. From Ha/Gry. 106. Hs/Gry.14/MJ.28.11.32. PEREGRINE BRAKES. We find that the front brakes on this car are prevented from coming on because the lubricator for the swinging arm does not allow… | ||
| B001_X106 TO X 110-page024 | Test results and proposed alterations for Peregrine brake units. | ||
| View original record | For Files. X 106. 2.12.32 BRAKES - PEREGRINE. 3 Per.II has been tried with the following brake units:- 550 Direct + 400 S front + 220 S rear. This proved to have too much direct braking it being… | ||
| B001_X106 TO X 110-page025 | The performance and modifications of the brake layout for the Peregrine II car. | ||
| View original record | X106. R. From Hs/Gry. c.c. to Sg. c.c. to Nor. c.c. to E. c.c. to Hy. c.c. to Ds. c.c. to Hdy. Hs/Gry.2/MA.10.12.32. PEREGRINE BRAKES. The attached sketch shows the arrangement of the brake layout… | ||
| B001_X106 TO X 110-page026 | Blueprint showing the layout and specifications for a Peregrine brake system. | ||
| View original record | PEREGRINE BRAKE LAYOUT 3 PER II (3.12.32.) BRAKE CLEARANCE .312 HERE. .325 CAM 3.500 2.000 1.625 PILOT SHOE SET AT .0075 1.230 / 1.875 SWINGING ARM TO BE ABLE TO MOVE 20° BACKWARDS. 13.150 5.250 1.425… | ||
| B001_X106 TO X 110-page027 | Blueprint showing the design for Peregrine brake toggles. | ||
| View original record | PEREGRINE BRAKE TOGGLES BUCKLE) HERE | ||
| B001_X106 TO X 110-page028 | Material changes for Peregrine brakes, switching from Duralumin and Aluminium to mild steel. | ||
| View original record | Y106 To BY. From Hs. c. to Wor. c. to E. c. to RHC. c. to Sft. Hs.3/MJ.14.12.32. Re. PEREGRINE BRAKES. X4612. We prefer to use the mild steel brake carriers in place of the Duralumin. We find that… | ||
| B001_X106 TO X 110-page029 | Performance and design of hydraulic brake systems. | ||
| View original record | 6106 x4456 R. From Hs/Gry. c. to Sg. c. to Wor. c. to E. c. to Hy. c. to Da. c. to hdy. Hs/Gry.1/HA. 21.12.32. HYDRAULIC BRAKES. ================== Da. 2/H. 7.12.32. With the present brake layout we… | ||
| B001_X106 TO X 110-page030 | Note on Lockheed's automatic ratchet adjustment for brake systems and cylinder weights. | ||
| View original record | -2- Ha/Gry.1/MA.21.12.32. Cont'd. Lockheed's have also been trying automatic ratchet adjustment but told us that the adjustment must not be made too fine owing to having to allow for drum and shoe… | ||
| B001_X106 TO X 110-page031 | Investigation into Peregrine foot brake leverages, identifying high torsion issues and proposing a solution by reducing lever lengths. | ||
| View original record | BY. FROM DA. DA2/M24.12.32. C. to SG. WOR. HS. E. Y106. PEREGRINE FOOT BRAKE LEVERAGES. -------------------------- We send herewith N. sch. 3627. shewing a layout of the Peregrine brake leverages as… | ||
| B001_X106 TO X 110-page032 | Comparison and analysis of brake sponginess in the Peregrine system versus other models. | ||
| View original record | FILES. X.4027. X106. 16.2.33. BRAKE SPONGINESS - PEREGRINE. (1) Comparison of 1.Per.II. with 19.G.IV. (20/25). On 20/25 a pedal pressure of 150 lbs. causes a deflection of the pedal of .8". Overall… | ||
| B001_X106 TO X 110-page033 | Tests and improvements on the Brake Cam Actuating Shaft and Peregrine Brakes. | ||
| View original record | -2- (3) Brake Cam Actuating Shaft (20/25). .430 cam 2.25 B For 2000 lbs. at cam load at B. = 385 lbs. Deflection measured at B. = .075 which becomes .39 at brake pedal. Due to twisting of the… | ||
| B001_X106 TO X 110-page034 | Brake adjustments and pedal modifications for Peregrine & Bensport models. | ||
| View original record | X/06 By. From Hs/Gry. Hs/Gry.7/MA.13.4.33. BRAKES - PEREGRINE & BENSPORT. X.55-3 We find that the 21° of rear brake adjustment shown on RR.sch.292 allows a wear of the linings at the shoe centre of… | ||
| B001_X106 TO X 110-page035 | Scheme to overcome inefficient brakes on wet roads for Peregrine & Bensport models. | ||
| View original record | COPY. X106. By. from Hs/Gry. Hs/Gry.15/KT.3.5.33. XL4553 BRAKES - PEREGRINE & BENSPORT. We think that N.Sch.3717 should overcome the trouble of inefficient brakes due to wet roads, repeatedly met with… | ||
| B001_X106 TO X 110-page036 | Blank divider page with the handwritten number '107'. | ||
| View original record | 107. | ||
| B001_X106 TO X 110-page037 | Tabulated list comparing valve opening specifications for various engines. | ||
| View original record | TABULATED LIST OF VALVE OPENINGS Handwritten notes: X4027, x7770, x5770, x7090, x5090, x3991, x4003, X107 Engine. | Dia. of inlet valve | Lift of inlet valve. | Ratio Lift valve dia. | Valve area per… | ||
| B001_X106 TO X 110-page038 | Camshaft tests for the Peregrine engine, analyzing M.E.P. and power results from different configurations. | ||
| View original record | E. From Hs/Rn. X107 Hs/Rn.7/MA.12.7.32. PEREGRINE CAMSHAFT. We fitted up a Peregrine head with exhaust valves in the inlet position to see if this would improve the low speed M.E.P. Curve Rn.P.15… | ||
| B001_X106 TO X 110-page039 | Optimum camshaft timing and performance results from engine tests. | ||
| View original record | -2- Hs/Rm.7/MA.12.7.32.Cont'd. The optimum camshaft from these tests would appear to be the following timing :- [Diagram showing camshaft timing with values: EX 34, IN 34, 2, 6] The best low speed… | ||
| B001_X106 TO X 110-page040 | Performance comparison graph for a Peregrine engine, testing small versus large valves. | ||
| View original record | SMALL V LARGE VALVES PEREGRINE RM PR 15 PLUG REACH .600 OPEN EXHAUST 1 5/8 THROTTLE S.U. 5.85 C/R. ---- TWO EX. VALVES. THROAT DIA 1.125 AREA/LITRE 2.34 SQ IN - - - ORDINARY INLET VALVE. " " 1.200… | ||
| B001_X106 TO X 110-page041 | Performance graph showing the effect of various tappet clearances for a 104° camshaft engine. | ||
| View original record | EFFECT OF VARIOUS TAPPET CLCES. 104° CAMSHAFT INLET VALVE THROAT 1.200 PLUG REACH .950 OPEN EXHAUST 1 5/8" THROTTLE S.U. 5.85 C/R B.H.P. R.P.M. B.M.E.P. INLET .020 / Ex .020 INLET .020 / Ex .005… | ||
| B001_X106 TO X 110-page042 | Graph comparing engine performance (BHP and BMEP) with varying tappet clearances. | ||
| View original record | COMPARISON OF VARYING TAPPET CLEARANCE 104° CAMSHAFT INLET VALVE THROAT 1.200 EX. 1.125 PLUG REACH .950 OPEN EXHAUST 1 5/8 THROTTLE S.U. 5.85 C/R B.H.P R.P.M. B.M.E.P Valve Timing Diagram: EX IN OPEN… | ||
| B001_X106 TO X 110-page043 | Performance graph comparing the best results achieved with two different camshaft configurations. | ||
| View original record | COMPARISON OF BEST RESULTS WITH TWO CAMSHAFTS. ① TWO INLET CAMS 104° BETWEEN THEM. INLET THROAT 1.200 OPEN EXHAUST. ② INLET AND EXHAUST CAM 105.5°. INLET THROAT & EXHAUST 1.125. 1 5/8 THROTTLE DIA… | ||
| B001_X106 TO X 110-page044 | Alterations to the Peregrine camshaft inlet form. | ||
| View original record | X107. E. From Hs/Rn. Hs/Rn.1/MA.14.7.32. PEREGRINE CAMSHAFT. Further to Hs/Rn.7/MA.12.7.32. We can get very close to the recommended valve timing using a 106° angle between the cams and two of the… | ||
| B001_X106 TO X 110-page045 | Modification to a cam form. | ||
| View original record | -2- Hs/Rn.1/MA.14.7.32.Cont'd. If necessary we could probably build up the toe of the cam form to give you greater latitude. Hs/Rn. | ||
| B001_X106 TO X 110-page046 | Replacement and modification of the Peregrine II Camshaft. | ||
| View original record | To: Technical c: Hs/Rm: Re Peregrine II - Camshaft - Section 5090: X 107. BY/CS5/E:22:7:32 Please receive herewith marked up blue print :- E:100543: Camshaft, which replaces E:100111 Will you please… | ||
| B001_X106 TO X 110-page047 | Modifications and testing of a Peregrine engine camshaft. | ||
| View original record | To [REDACTED] from Hs/Rn. C. to [REDACTED] C. to [REDACTED] X107. Hs/Rm.5/RT. 20.3.32. PEREGRINE CAMSHAFT. We have now run the camshaft with the toe reduced .005" each end to Byl6/W21.7.32, the… | ||
| B001_X106 TO X 110-page048 | Camshaft timing diagram for the Peregrine engine. | ||
| View original record | Hs 632 4 EX 108 1/2° 1 IN 2 EX 60° 4 IN 6 EX L OF KEYWAY DIRECTION OF ROTATION 2 IN 3 EX 6 IN 5 EX 3 IN 5 IN 1 EX 15° 60° IO 1E IC 41L EO 40E EC 9.5L Joe Reduced as-per BY/G/W 21-7-32. CAM FORMS TO… | ||
| B001_X106 TO X 110-page049 | Requesting the production of the Peregrine camshaft as a solid shaft instead of hollow. | ||
| View original record | To EY. from E. c. Wor. Sft. Hs. RECEIVED 1932 AUG 26 X107. E.3/HP.25.8.32. re Peregrine Camshaft. Would you please arrange to produce the Peregrine camshaft without the central hole. We do not think… | ||
| B001_X106 TO X 110-page050 | Results of tests on Peregrine engine camshafts with various toe profiles. | ||
| View original record | Y 107. To E. from Hs/Rm. c. to By. Hs/Rm.1/KT.20.9.32. PEREGRINE CAMSHAFTS. We have now completed a series of tests on the camshafts with the reduced toes, produced in the temporary method… | ||
| B001_X106 TO X 110-page051 | Design specifications and performance of two new camshaft forms. | ||
| View original record | -2- Hs/Rm.1/KT 21.9.32. - giving approximately 222º inlet and exhaust duration from the completion of the "toe". We suggest that two new cam forms are made. (1) As above, with the lift lost on our… | ||
| B001_X106 TO X 110-page052 | Performance comparison of alterations to the Peregrine engine to improve low-speed torque. | ||
| View original record | COMPARISON OF PEREGRINE ALTERATIONS TO IMPROVE LOW SPEED TORQUE RM. PR. 23 PERFORMANCE (A) REDUCED TOE 2: 1 1/4 S.U. CARBS INLET VALVES .125 THROAT (B) STD TOE ONE 1 5/8 CARBS S.U. .200" 5.85 C/R OPEN… | ||
| B001_X106 TO X 110-page053 | Performance graph comparing a single 1 5/8' carburetter against two 1 1/4' S.U. carburetters. | ||
| View original record | COMPARISON OF SINGLE 1 5/8 AND TWO 1 1/4 S.U CARBURETTER 5.85 C/R OPEN EXHAUST VALVES. INLET 1.125 THROAT. 14 M.M. A 15 PLUGS CAMSHAFT WITH TOE REDUCED TO .007. TWO INLET CAM FORMS. SINGLE 1 5/8 DIA.… | ||
| B001_X106 TO X 110-page054 | Performance graph for a reduced toe camshaft with large and small valves. | ||
| View original record | RM. PR. 25 LARGE & SMALL VALVES. REDUCED TOE CAMSHAFT 5.85 C/R OPEN EXHAUST LONG REACH PLUGS TWO INLET CAMFORMS ------- .125 THROAT INLET _______ .200 " " Valve Timing Diagram: 106° EX IN 8 3 38 34… | ||
| B001_X106 TO X 110-page055 | Performance comparison graph for two different camshaft configurations, plotting BHP and BMEP against RPM. | ||
| View original record | COMPARISON OF TWO INLET VALVE CAM FORM CAMSHAFT AND INLET AND EXHAUST CAM-FORM CAMSHAFT. BOTH SHAFTS REDUCED TOE. 5.85 C/R OPEN EXHAUST LONG REACH PLUGS SINGLE 1 7/8 THROTTLE S.U. Timing Diagram A:… | ||
| B001_X106 TO X 110-page056 | Noise issues and comparisons between standard and experimental Peregrine camshaft toes. | ||
| View original record | V107. To E. from Hs/Rm. c.c. to By. Hs/Rm.13/KT.21.9.32. PEREGRINE CAMSHAFTS. Further to our Hs/Rn.1/KT.20.9.32. We send you herewith comparisons of the standard camshaft toe, and the actual toe we… | ||
| B001_X106 TO X 110-page057 | Graph comparing the toe of camshafts with a standard shaft profile. | ||
| View original record | TOE OF CAMSHAFTS REFERRED TO IN HS/RM/KT 20-9-23 AND CURVES RM PR 23-26 COMPARED WITH STANDARD TOE ON R.R SHAFTS RM PR 28 VALVE LIFT CRANK ANGLE 4°=1.DIV. EX. BEGINS HERE. IN. BEGINS HERE. SCH: 1897… | ||
| B001_X106 TO X 110-page058 | Modifications to the Peregrine engine's cam form to improve low-speed performance. | ||
| View original record | To R. from E. c. Sg. Wor. Hs. Bv. X107. E./HP.1.10.32. re Peregrine Cam Form. It has been found that the long toed cams used on Peregrine resulted in/low speed M.E.P. poor Since, however, the… | ||
| B001_X106 TO X 110-page059 | Note on the possibility of roar with overlap and its relation to back pressure in the exhaust system. | ||
| View original record | - 2 - E/HP.1.10.32. possibility of roar with the position of overlap shown, but this trouble has not yet arisen and is found to be less pronounced with less back pressure in the exhaust system. E. | ||
| B001_X106 TO X 110-page060 | New camshaft design for the Peregrine engine with reduced overlap. | ||
| View original record | X.107. BY. --- c. Hs. --- E/JNR.1/HP.8.10.32. re Peregrine Camshaft. -------------------- We wish to try another camshaft with [s]the[/s] reduced overlap. The cam forms will be made to LeC.3223, but… | ||
| B001_X106 TO X 110-page061 | Performance, silence, and manufacturing variations of a Peregrine engine camshaft. | ||
| View original record | Y10f. RHC. From Hs/Rn. c. to E. c. to By. Hs/Rn.5/MA.11.11.32. PEREGRINE CAMSHAFT. Lec. 3223. We have run this camshaft on Peregrine 5 unit and are very satisfied with its performance with regard to… | ||
| B001_X106 TO X 110-page062 | Modifications to the oiling of Peregrine camshaft bearings and the relocation of the oil drain plug. | ||
| View original record | To BY. from E/JNR. c. Wor. RHC. Hs. E/JNR.3/HP.28.2.33 [Stamp]: RECEIVED 28 FEB 1933 [Handwritten]: X404 Peregrine Camshaft Bearings. We send you herewith: LeC.3390 showing modifications to the oiling… | ||
| B001_X106 TO X 110-page063 | The need to alter the Peregrine camshaft E.100863 due to excessive overlap during slow running. | ||
| View original record | BY. from Hs/Rn. c. to E. X107 Hs/Rn. 2/KT.24.3.33. We think we shall have to alter the Peregrine camshaft E.100863 because we have too much overlap for R.R. slow running. Will you, therefore, please… | ||
| B001_X106 TO X 110-page064 | Camshaft tests for slow running on the Peregrine engine. | ||
| View original record | X107 To Sg. from Hs/Rn. c. Wor. E. c. Hy. Da. c. Hdy. Hs/Rn.1/KT. 21.6.33. CAMSHAFTS FOR SLOW RUNNING. X4027a We have carried out some camshaft tests on Peregrine because the slow running obtained… | ||
| B001_X106 TO X 110-page065 | Performance graph comparing a 110° shaft with a normal 107° shaft to improve slow running. | ||
| View original record | RM. PR. 39. COMPARISON OF 110° SHAFT INTENDED TO IMPROVE SLOW RUNNING AND NORMAL 107° SHAFT E.100863. LARGE PER: CARB: INDUCTION PIPE E.100958 WITH POCKET FILLED IN. SLEEVE FITTED INDUCTION PIPE… | ||
| B001_X106 TO X 110-page066 | Performance graph comparing a 110° shaft (H.S.970) against a normal 107° shaft (E.100863) to improve slow running. | ||
| View original record | COMPARISON OF 110° SHAFT INTENDED TO IMPROVE SLOW RUNNING AND NORMAL 107° E.100863. LARGE PEREGRINE CARB: INDUCTION PIPE E.100958 WITH POCKET FILLED IN. SLEEVE FITTED IN INDUCTION PIPE TAPERING FROM… | ||
| B001_X106 TO X 110-page067 | Performance comparison graph for an extra short duration camshaft against a standard shaft. | ||
| View original record | CAMSHAFT HS.968. EXTRA SHORT DURATION FOR SLOW RUNNING COMPARED WITH STANDARD 107° SHAFT. LARGE PER: CARBS: INDUCTION PIPE E.100958 WITH POCKET FILLED IN. SLEEVE FITTED IN INDUCTION PIPE TAPERING FROM… | ||
| B001_X106 TO X 110-page068 | Blank page with the handwritten number '/08.' in the top right corner. | ||
| View original record | /08. | ||
| B001_X106 TO X 110-page069 | Carburettor design, including the semi-expander and suction chamber for J.3 and Peregrine engines. | ||
| View original record | E. FROM R. HS.) (At Le Canadel.) X/08 R2/M12.4.32. Sent from WW 14.4.32. C. to SG. WOR. BY. DA. X.5080 X.4027 CAR WORK - CARBURETTERS. These will be needed for J. 3. and Peregrine; if you have not… | ||
| B001_X106 TO X 110-page070 | Design and performance of the Peregrine carburetter and induction pipe, including throttle valve size and spatial constraints. | ||
| View original record | X108. To R. from E. E.9/HP.23.8.32. c. Sg. Wor. By. Hs. Peregrine Carburetter and Induction pipe. --------------------------------------- Please find herewith blueprints of LeC.3157 and LeC.3169… | ||
| B001_X106 TO X 110-page071 | The carburetter, air inlet, silencer, and mixture control systems. | ||
| View original record | (2) be found satisfactory with a sufficient flow of hot gas through the jacket, and that sufficient heat will travel down the uptake portion of the induction pipe for the purpose. With regard to the… | ||
| B001_X106 TO X 110-page072 | Peregrine carburetter and induction pipe, clarifying performance expectations and design simplifications. | ||
| View original record | X108 To R. from E. c. Sg. Wor. Hs. By. re Peregrine carburetter and induction Pipe. With further reference to our memo E.9/HP.23.8.32, the third paragraph should read that we expect the same maximum… | ||
| B001_X106 TO X 110-page073 | Fuel consumption issues and potential fixes for the J.3 & Peregrine carburetter. | ||
| View original record | E. HS. } FROM R. X408. R3/M31.8.32. X5080. C. to SG. WOR. BY. J. 3. & PEREGRINE CARBURETTER. The question of the consumption of fuel is becoming rather serious with all our cars. We must expect it to… | ||
| B001_X106 TO X 110-page074 | Designs for the Peregrine carburetter air inlet and crankcase breather connection, with reference to two prints. | ||
| View original record | x 108. To R. from E. c. Sg. Wor. Hs. By. E.4/HP.8.9.32. re Peregrine Carburetter Air Inlet, and Crankcase Breather Connection. Please find attached prints LeC.3183 and LeC.3187 dealing with the above.… | ||
| B001_X106 TO X 110-page075 | Blueprint for experimental modifications to a Peregrine carburetter. | ||
| View original record | X108. RECEIVED OCT Hs. from E/JNR. E/JNR.2/HP.15.10.32. Peregrine Carburetter. Please receive herewith a blueprint of LeC.3243. The drawing calls for three experimental modifications, the main object… | ||
| B001_X106 TO X 110-page076 | Unsatisfactory annular connection on the Semi-Expanding Peregrine Carburetter. | ||
| View original record | X108 E. from Hs/Rn. Hs/Rn. 8/KT.17.10.32. SEMI-EXPANDING PEREGRINE CARBURETTER. We are sure that the annular connection to the slow running device on the Peregrine carburetter will be unsatisfactory… | ||
| B001_X106 TO X 110-page077 | The initial test runs of the Peregrine carburetter, discussing its promising performance and spatial constraints. | ||
| View original record | X 108. E. from Hs/Rm. c. to BY. c. to Wor. c. to Sg. Hs/Rm.6/KT. 24.10.32. PEREGRINE CARBURETTER. Attached is a report on the first runs we have had on the Peregrine carburetter. On the whole it is… | ||
| B001_X106 TO X 110-page078 | The preliminary tests of a semi-expanding carburetter for the Peregrine engine. | ||
| View original record | X108. E. from Hs/LHS. c. to BY. c. to Wor. Hs/LHS.9/KT.24.10.32. TEST OF SEMI EXPANDING CARBURETTER (Lec.3157) FOR PEREGRINE. We have carried out preliminary tests on the above carburetter, the… | ||
| B001_X106 TO X 110-page079 | Carburettor piston modifications, clearances, and main jet adjustments. | ||
| View original record | -2- HS/IHS.9/KT.24.10.32. this bringing the fully lifted position to 3500 R.P.M. full throttle, the heavier piston operating in a more satisfactory manner. By increasing the diametrical clearance of… | ||
| B001_X106 TO X 110-page080 | Carburettor testing, detailing modifications to the diffuser and investigations into slow running performance. | ||
| View original record | -3- needle (E.100717). A complete range of needles are being made for testing out the most suitable. The smaller bore of the diffuser has been opened up from .135 diameter to .155 diameter and the… | ||
| B001_X106 TO X 110-page081 | Carburetter testing, covering starting, petrol levels, and air intake silencer issues. | ||
| View original record | -4- Hs/LHS.9/KT.24.10.32 Starting by use of the starting plug and cutting off the air to the venturi, with the throttle in the slow running position can be obtained reasonably easy by hand. Petrol… | ||
| B001_X106 TO X 110-page082 | Performance graph comparing S.U. and R.R. carburettors by plotting B.M.E.P. and depression against engine speed. | ||
| View original record | COMPARISON OF S.U. & (R.R. CARBURETTERS LEC 3157) RM PR.31. C/R 6.24 INLET VALVE 1.125 THROAT HEAD E.100520 OPEN EX 108 1/2° CAMSHAFT. TIMED WITH .020 CLEARANCE IO T.D.C. EO 38° BBDC IC 45° PBDC EC… | ||
| B001_X106 TO X 110-page083 | Experimental modifications for the Peregrine Carburetter. | ||
| View original record | RHC. c. Hs. X 108. E/JNR.1/HP.28.10.32. re Peregrine Carburetter. ------------------------ We send you herewith: LeC.3257 - showing two experimental modifications to the above carburetter. These… | ||
| B001_X106 TO X 110-page084 | Requesting the experimental production of a Carburetter Automatic Starting Device for the Peregrine engine. | ||
| View original record | RHC. from E/JNR. RECEIVED NOV 1 1932 Hs. X 108 E/JNR.7/HP.1.11.32. re Peregrine. Please receive herewith: LeC.3261 - Carburetter Automatic Starting Device. Will you please have this made up for… | ||
| B001_X106 TO X 110-page085 | Design and development updates for the Peregrine Carburetter. | ||
| View original record | X 108 To BY. from E/JNR. E./JNR.1/HP.12.11.32. c. WOR. Hs. RHC. re Peregrine Carburetter. This drawing has been prepared showing all the uptodate design, and development features which should be… | ||
| B001_X106 TO X 110-page086 | Work-in-progress report on modifications to the Peregrine carburettor and steering assembly. | ||
| View original record | EXTRACT FROM: x108. R. FROM DA. DAL/M6.12.32. WORK IN PROGRESS - 6.12.32. PEREGRINE CARBURETTER & STEERING. Derby want to lower the carburetter 1.5", which causes it to foul the steering box in the… | ||
| B001_X106 TO X 110-page087 | Blueprint for fitting a J.2 carburetter to a Peregrine throttle body for experimental use. | ||
| View original record | .X108. RHC. c. Hs. E/JNR.1/HP.7.12.32. Peregrine Carburetter. Please receive herewith blueprint: LeC.3805 - showing the J.2. carburetter fitted to the Peregrine Throttle body with a suitable adaptor… | ||
| B001_X106 TO X 110-page088 | Use of a J.2 carburetter with a Peregrine uptake and two alternative designs for the steering box. | ||
| View original record | X108. To Hs. from E. E.1/HP.8.12.32. c. BY. Hs/Rm. RHC. re Peregrine Carburetter and Steering Box. As we are aiming to use the bottom portion of the J.2. carburetter in conjunction with the lengthened… | ||
| B001_X106 TO X 110-page089 | Analysis of carburetter tests completed on the Peregrine engine. | ||
| View original record | 108. E. From Hs/Rm. c. to By. Hs/Rm.10/MA.13.12.32. Herewith analysis of carburetter tests so far completed on Peregrine. It is clear that, for a given depression, we are not getting as good power… | ||
| B001_X106 TO X 110-page090 | Test report comparing carburetter performance under five different configurations and modifications. | ||
| View original record | 12.12.32. (1) Carburetter with original size chokes. R.P.M. LOAD. AIR Cor/Load. B.H.P. M.E.P. INDN: PIPE DEPRESSIONS. 4500 66.5 10 66 66 80.9 2.5 Ins.Hg. 4000 75.5 12 75.1 66.8 92 2.1 " (2) Underside… | ||
| B001_X106 TO X 110-page091 | Performance data tables for J.3 and S.U. carburetters on a Peregrine manifold. | ||
| View original record | - 2 - (6) J.3 carburetter with own throttle body and hot spot distance piece on Peregrine manifold. R.P.M. | LOAD. | Air. | Cor/Load. | B.H.P. | M.E.P. | INDN PIPE. DEPRESSION. 4500 | 70.5 | 12 | 70.2… | ||
| B001_X106 TO X 110-page092 | Distribution issues with the Peregrine carburetter and a proposed solution. | ||
| View original record | HS. FROM R. 8108. R4/M12.12.32. C. to SG. WOR. BY. E. DA. PEREGRINE CARBURETTER. EFFECTIVE DISTRIBUTION. I learned from HS. that the distribution is largely cured by making the hot spot more… | ||
| B001_X106 TO X 110-page093 | Instruction to try a less tapered venturi tube in the Peregrine carburetter. | ||
| View original record | x 108. HS. FROM DA. DA1/M15.12.32. Copy to E. PEREGRINE CARBURETTER. R. instructs that the venturi tube in the Peregrine carburetter should be tried with a slightly less taper towards the top, so… | ||
| B001_X106 TO X 110-page094 | Modifications to the Peregrine carburettor, comparing tapered and parallel-sided venturis. | ||
| View original record | R. From Hs/Swdl. c.c. to Sg. c.c. to Wor. c.c. to E. c.c. to By. c.c. to Da. c.c. to Hdy. 8109. Hs/Swdl.6/MA.19.12.32. PEREGRINE CARBURETTOR. (Lec.3157). With regard to your query re. the venturi tube… | ||
| B001_X106 TO X 110-page095 | Testing different choke and venturi combinations to resolve loading issues. | ||
| View original record | -2- Hs/Swdl.6/HA.19.12.32. When using the original choke (E.100660) which has a taper of 3°-30', there is a slight loading up. We have tried a venturi to (V.1456) which has taper sides of 5°-45' and… | ||
| B001_X106 TO X 110-page096 | Drawing and experimental production of a long small choke for a Peregrine engine carburetter. | ||
| View original record | 8109 To RHC. from E/JNR. E/JNR.5/HP.20.12.32. c. Hs. re Peregrine. Please receive herewith drawing: LeC.3318 - A long small choke for the carburetter. Please make one off for experimental test. E/JNR. | ||
| B001_X106 TO X 110-page097 | Drawings for the Peregrine Engine's induction pipe and carburetter. | ||
| View original record | 8108. To BY. from E/JNR. c. Wcr. c. Hs. c. RHG. E/JNR.2/HP.24.12.32. Peregrine Engine. Please receive herewith: LeC.3314 - Design for the induction pipe. LeC.3325 - Carburetter and uptake pipe. On the… | ||
| B001_X106 TO X 110-page098 | Revised Peregrine Carburetter suitable for the new steering box position. | ||
| View original record | 8408. To DF. from E. c. Hs. re Peregrine. Please receive herewith: LeC.3325 - Revised Peregrine Carburetter suitable for the new steering box position. E/JNK.2/HP.4.1.33. [Stamp: RECEIVED JAN 4 1933]… | ||
| B001_X106 TO X 110-page099 | Re-designed throttle edge adjustment for the Peregrine carburetter. | ||
| View original record | 8108. To BY. from E/JNR. E/JNR4/HP.14.1.33. c. Hs. re Peregrine Carburetter. Please receive herewith: LeC.3344 - A re-designed RR. throttle edge adjustment. E/JNR. C | ||
| B001_X106 TO X 110-page100 | New position for the crankcase breather pipe on the Peregrine III Car. | ||
| View original record | 8108. To RHC. from E/JNR. E/JNR.1/HP.18.1.33. c. Hs. By. Peregrine III Car. We send you herewith - LeC.3350 showing a new position of the crankcase breather pipe to the carburetter. This design is… | ||
| B001_X106 TO X 110-page101 | Construction of a third and final induction pipe for improving Peregrine distribution. | ||
| View original record | X130. RHC. from Hs/Rm. Hs/Rm.5/KT.10. 2.33. Herewith Lec.3372, the third and last induction pipe for improving Peregrine distribution. Whatever the results are with the other two pipes, we should like… | ||
| B001_X106 TO X 110-page102 | Tests on Peregrine carburetter induction pipes, discussing distribution issues and proposed modifications. | ||
| View original record | E. from Hs/Rn. C. to By. X 108 Hs/Rn.11/KT.3.3.33. PEREGRINE CARBURETTER INDUCTION PIPES We have now carried out the tests suggested in E. /HP.22.2.33 with the exception of the weir pipe and the 1.5"… | ||
| B001_X106 TO X 110-page103 | Preliminary tests of twin S.U. carburettors on a Peregrine engine. | ||
| View original record | X708 Files. 20.3.33. ------- TWIN S.U. CARBURETTERS ON PEREGRINE. X1087 We have made preliminary tests with two 1⅜" dia. S.U. carburettors on Peregrine with an Induction system scaled down from… | ||
| B001_X106 TO X 110-page104 | The development and testing of semi-expanding carburettors for the Peregrine engine, comparing them with S.U. carburettors. | ||
| View original record | γ 108. To Sg. From Hs/Ra. c. Wor. E. c. Hy. Da. c. Hdy. EV. Hs/Ra.1/KT. 26.3.33. PEREGRINE CARBURETTERS. We have done a great deal of work on the semi-expanding R.R. carburetter on Peregrine. Two… | ||
| B001_X106 TO X 110-page105 | Carburetter trials for the Phantom 27-EX and ongoing development for the Peregrine engine. | ||
| View original record | -2- Ha/Bn.l/KT.26.5.33. Sales, however, have already tried two S.U.'s arranged in exactly this manner on the Phantom 27-EX and in Sg.10/E.2.3.32. commented on them as follows :- "Speaking generally,… | ||
| B001_X106 TO X 110-page106 | Blueprint of the Peregrine induction system with annotations and dimensions. | ||
| View original record | PEREGRINE INDUCTION SYSTEM V1575. ONLY TOP HOT SPOT IN ACTION IND'N PIPE E100741 1.625 DIA 1.250 1.875 DIA TAPER PIECE TO SUIT IND'N PIPE BORED OUT THROTTLE BODY OTHERWISE LARGE CARB TO LEC 3395 LMS… | ||
| B001_X106 TO X 110-page107 | Sketch showing modifications to a semi-expanding carburetter. | ||
| View original record | V1576 EXHAUST HEAT HERE BLANK HOT-SPOT OUTLET AIR VALVE PORT INCREASED TO 1.975 DIA. INDUCTION PIPE E100741 DISTANCE PIECE 1.625 LONG EXHAUST HEATED SKETCH SHOWING MODIFICATIONS TO SEMI-EXPANDING… | ||
| B001_X106 TO X 110-page108 | Performance graph comparing Small and J3 R.R. Semi Expanding carburetters for the Peregrine setup. | ||
| View original record | MAX POWER COMPARISON OF CARBURETTERS - PEREGRINE SMALL AND J3 R.R. SEMI EXPANDING SMALL 1.975 DIA AIR VALVE J3 MAIN JET .138 DIA BALANCE PASSAGE .375 DIA : 1.600 LONG NEEDLE 140 + .085 DIFFUSER… | ||
| B001_X106 TO X 110-page109 | Performance graph comparing the max power and fuel consumption of two different carburetter setups on a Peregrine engine. | ||
| View original record | MAX POWER COMPARISON OF CARBURETTERS - PEREGRINE TWO S.U. CARBURETTERS - SMALL RR SEMI EXPANDING S.U. 1 1/4 DIA. BALANCE PASSAGE .375 DIA. 1.600 LONG R.R. 1.975 DIA. AIR VALVE. 1.625 UPTAKE DISTANCE… | ||
| B001_X106 TO X 110-page110 | Graph comparing the max power and performance of S.U and RR J3 carburettors for the Peregrine engine. | ||
| View original record | MAX POWER COMPARISON OF CARBURETTERS - PEREGRINE TWO S.U - RR J3 SEMI EXPANDING S.U 1 1/4 DIA - BALANCE PASSAGE .375 DIA. 1.600 LONG R.R. MAIN JET .138 DIA. NEEDLE - DIFFUSER DISCHARGE HOLES 4 + .098… | ||
| B001_X106 TO X 110-page111 | Improvements to the Peregrine induction system and the performance of different hot spot heating methods. | ||
| View original record | Aries X108. To E. from Hs/Rn. Hs/Rn.6/KT.30.5.33. The attached curve was taken when we were playing about with the Peregrine induction system trying to improve the distribution. The interesting point… | ||
| B001_X106 TO X 110-page112 | Graph plotting hot spot temperatures in degrees Celsius against engine RPM for three different heating methods. | ||
| View original record | COMPARISON OF HOT SPOT TEMPS UNDER VARIOUS CONDITIONS PER II INDUCTION SYSTEM: SHEET METAL PIPE WITH POCKETED HOT SPOT CARB TO LE C 315/7 WITH NO DISTANCE PIECE MEANS OF OBTAINING READINGS: THERMO… | ||
| B001_X106 TO X 110-page113 | Policy reasons for persevering with the RR carburettor over the S.U. carburettor for the Peregrine engine. | ||
| View original record | X108 S/W To Hs/Rm. from Sg. Peregrine Carburetters. Sg4/E13.6.33 Copy to Wor.E.BY. DA.Hdy.EV.PN. Referring to Hs/Rm.1/KT/26.5.33 it seems to me that we must persevere with the RR carburetter for… | ||
| B001_X106 TO X 110-page114 | Page number '110.' on a blank divider sheet. | ||
| View original record | 110. | ||