From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Alteration document for an improved type water pump with an improved locking device for the drain cock on Eagle and Falcon engines.
| Identifier | ExFiles\Box 36\3\ scan 069 | |
| Date | 31th October 1917 | |
| X 3036 Eagle engines Series 8 - 1101 onwards. Falcon " 3 - 701 onwards. R.R. 238A (5 H) (S.D. 353. 29-3-17) Bm. 2/1423. ALTERATIONS TO R.R. AERO ENGINE PARTS. EAGLE, FALCON, HAWK. DATE 31.10.17. X No. 3036 So 64B. Drawing No. E.14232. Part List E.14232. Admiralty consent obtained. Air Board consent obtained. Description of Parts. Improved type water pump with improved type locking device for drain cock. Origin. Lightening of pump & improvement & simplification of drainage scheme. Experimental Test Report. EFC15/T28817. "This expt. has been tested on Eagle "E" Exptl. engine and consists of a pump with four bolt flange in place of a two bolt flange (also drain cock with locking device reptd. under X.3064) The pump was satisfactory on test. The alteration was to prevent the ears on the two bolt flange scheme from breaking off". EFC16/T28817. X.3064 - Water pump drain cock with locking device - This has been tested in connection with water pump X.3036. This drain cock has been found satisfactory on test & is recommended for standardisation with the later type of spring instd. Signature of Expl. Dept. that above is correct. (Sgd) EH. "B"-Scrap and replace at all costs on those engines in Works. "C"-Scrap present stock and replace on all engines not yet handed to test. "D"-Use up existing stock. Alteration effective on future engines. Weight of Old Part. 4.75 lbs. Cost of Old Part. £ 6. 4. 9. Weight of New Part. 5 lbs. Cost of New Part. £ 5. 10. 0. Difference per Engine. .25 lbs (increase) Difference per Engine. £ 14.9 increase. Cost of Parts in Works and Stores which will be scrapped if commenced on:- £ Nil "D". Storekeeper advised re above. Storekeeper's Signature. Signature of Mr. DELOOZE that above is correct. (Sgd) D SIGNATURES | DATE | REMARKS Mr. JOHNSON. | 12.10.17 | Agreed By | BJ Mr. ROYCE. | 22.10.17. | I agree as "D" | FHR. Mr. WORMALD. | 1.10.17 | Agreed. Wor.{Arthur Wormald - General Works Manager} Mr. NADIN. | (Absent in U.S.A.) Mr. PLATFORD. | 26.9.17. | Agreed By.{R.W. Bailey - Chief Engineer} - "D" | EP.{G. Eric Platford - Chief Quality Engineer} Mr. BAILEY. | 26.9.17. | Agreed By.{R.W. Bailey - Chief Engineer} - "D" | No scrap. NOTE.--We have arranged with the Admiralty that if we find it necessary to make any alterations to these Engines we will notify the Admiralty what alterations we propose to make, and what will be the cost of them and of the consequent scrap, if any. So that we may ascertain whether the Admiralty will pay or Rolls-Royce will have to pay. | ||