Originally posted by MANDOBLE
Hazed, I know, what I mean about having this device installed is just the device itself and its weight, not whether it was switched on or not. I say that cause between the numbers there are some related to the GM1 usage. This was a completely different device than the plain small extra fuel tank.
Excelent work here and with the performance tables of 38, 110, 47 and A8
mandoble i think this a8 has gm1 but in the rather lenghy description of the whole flight testing Capt. Brown performed, he is very specific about turning on or off GM1 or methenol water injection. From what ive read these results are with GM1 off and then he adds GM1 for the extra performance and to test added altitude gains. I would suspect the GM1 is not used for the climb to 19k but as the book is new i havent absorbed all the info, only recieved it a few hours ago.

this is an interesting excerpt from a 190a4 test he flew:
'I checked out the maximum level speed of my fw190A-4/U8--which incidently had had its external stores carriers removed by this time --- and clocked 394 mph (634 km/h) at 18,500ft (5,640 m). and I ascertained that the sevice ceiling was around 35,000 ft (10,670 m). so it matched the spitfire IX almost mile per hour and foot per foot of ceiling.Here were two aircraft that were so evently matched that the skill of the pilot became the vital factor in combat supremacy'
(btw he isnt claiming evently matched in turn etc as earlier he talks of where each aircraft outperforms the other in turn, climb, zoom etc and is very specific about differing speeds at various alts)
you gotta buy this book mandoble
