Test data showing Spectre chassis frame distortion under various loads without a dashboard fitted.
| Identifier | ExFiles\Box 94\4\ scan0035 | |
| Date | 2nd May 1935 | |
| To Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} . x327 HS {Lord Ernest Hives - Chair} /KS.1/KW.2.5.35. Frame Distortion. Spectre(Codename for Phantom III) Frame Distortion - Chassis without Dashboard. 1st Point Front Pan Cross Member { 35.0" 2nd " Centre of 1st & 3rd points) { 30.5" 3rd " Front body bracket { 39.3" 4th " 2nd Body bracket { 35.5" 5th " 3rd " " { 27.5" 6th " 4th " " } 7th " Rear cross member { 17.2" Front centres at 33.5" and rear centres at 46.0" | Points | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |-----------|---------|---------|---------|---------|---------|---------|---------| | 400 lbs. | 0°-50'L | 0°-10'R | 0°-10'R | 0°-0' | 0°-20'R | 0°-20'R | 0°-10'R | | 600 lbs. | 0°-10'L | 0°-30' | 0°-30'R | 0°-20'R | 0°-40'R | 0°-40'R | 0°-20'R | | 800 lbs. | 0°-20'R | 0°-50'R | 0°-50'R | 0°-40'R | 0°-50' | 0°-50'R | 0°-30'R | | 1000 lbs. | 0°-30'R | 1°-10'R | 1°-10'R | 0°-50' | 0°-50' | 0°-50'R | 0°-30'R | | 1200 lbs. | 1°-0'R | 1°-30' | 1°-20'R | 1°-5' | 1°-5' | 1°-0' | 0°-35' | | 1400 lbs. | 1°-20' | 1 - 40 | 1 - 40' | 1 - 20' | 1 - 20' | 1 - 5' | 0 - 40 | | 1600 lbs. | 1 - 40' | 2 - 0' | 1 - 50' | 1 - 30' | 1 - 30' | 1 -10' | 0 - 40 | | 1800 lbs. | 2 - 0' | 2 - 20' | 2 - 5' | 1 - 40' | 1 -30' | 1 -10' | 0 - 40' | P.T.O. | ||
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).