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).
The performance of a steam-cooled Hart aircraft system during climbs and glides.
| Identifier | ExFiles\Box 179b\3\ img369 | |
| Date | 27th March 1933 | |
| ORIGINAL COPY OF REPORT RECEIVED FROM R.W.HARKER AT R.A.E. DATED 23.3.33. To H.{Arthur M. Hanbury - Head Complaints} From Ha/Hkr.{Mr Harker - RAF liaison pilot} c. to Ag. Wcr. c. to Rg.{Mr Rowledge} Hy.{Tom Haldenby - Plant Engineer} c. to Ir. Ha/Hkr.{Mr Harker - RAF liaison pilot}4/MJ.27.3.33. R.A.E. STEAM COOLED HART. The steam cooled Hart has done two very satisfactory climbs to 18,000 ft. with the water bleed on the pump side of the non-return valve. This keeps the hotwell pump primed the whole time enabling it to clear the hotwell spasmodically yet consistently. On the glide the non-return valve prevents any of the bleed water getting into the hotwell and freezing, and as the system does not boil on the glide the hotwell remains empty and cannot freeze up. After the glide, the recovery of the system in level flight is rapid as will be seen from graph (R.A.R.16). We consider that the whole system is functioning very satisfactorily and with reliability. Ha/A.H.Harker. Attached: One Print. | ||