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).
Letter from the Aeronautical Inspection Department detailing the acceptance test procedure for Series 2 Falcon Engines.
| Identifier | ExFiles\Box 36\2\ scan 021 | |
| Date | 7th June 1917 | |
| R.R. 226 A (400 T) (S.C. 636. 18-5-16) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 1546. COPY. AERONAUTICAL INSPECTION DEPARTMENT, ADASTRAL HOUSE, VICTORIA EMBANKMENT, E/7017/Rolls-Royce. LONDON, E.C. June 7th,1917. Messrs.Rolls-Royce, Ltd., Nightingale Road, D e r b y . Dear Sirs, Tests for 2 Series Falcon Engines. ----------------------------- I beg to confirm the acceptance test for series 2 Falcon engines, as arranged with yourselves and a representative of the Controller of the Technical Department. "Engines will be required to run at full power for a period of 5 minutes at 2000 r.p.m. and a further period of 3 hours at 225 H.P. at 2000 r.p.m. plus or minus 5% of r.p.m. At the end of this 3 hour run another short duration test of 5 minutes at 97% of the power developed during the first full power test will be required. During the 3 hour run the drop in power without alteration to the throttle, must not be greater than 5%. The engine will then be dismantled, cleaned and inspected. After re-erection it will be required to run at 90% full power for a period of ½ hour, the first five minutes of which it will be required to develop the same H.P. as that developed during the first full power test at 2000 r.p.m. plus or minus 3%. A power curve should then be taken. The record on the name plate will be as follows:- (1) Type - 2 Falcon 1, etc. (2) B.H.P. - Actual power developed during the 5 minutes full power test at 2000 r.p.m. will be recorded. (3) Fuel test - Actual fuel consumption recorded during 5 minutes full power test at 2000 r.p.m. (4) Oil consumption as recorded on 3 hour test." Yours faithfully, (Sgd) R.H.Verney, Capt.C.I.E. for Director of Inspection. Aeronautical Inspection Dept. | ||