Disagree strongly. Just as easy to lie or shade truth or make silly pronouncements, unfounded opinion, in a book as in a video. Greg, the subject of this debate, seems to me hold strong opinions but to base them on original source material, as much as possible. That's the way good academic...
Knew a flying priest who bellied a C-210 onto a snow covered strip. Jacked bird up. Sawed off the bent portions of the blades. Flew .5 hr. to shop. I was there. He said the 520 ran up to 3500 rpm at normal cruise speed. Head mechanic told him, "Father, you're gonna kill yourself." Flying friar...
Thanks. Am just a dumb old pilot. Never heard efficiency at higher rpm was improved by more blades. More blades for sufficient blade area at high power and rpm, yes, but I always though for pure efficiency the fewer blades the better. More blades and/or wider blades were dictated by tip speeds...
Suggested reading on 39 I have NOT found in skimming this thread. 1) Nanette, Edwards Park. He flew 39s over New Guinea, went on to a long and distinguished career, part of it with the Smithsonian. Wrote very well. His book is full instances where the 39s were unable to engage because of poor...
Could you provide details of how a "normal" NACA cowl, say what was used on C-47s and C-45s, would have had to be modified to achieve zero cooling drag? Thanks.
I remember seeing fly off comparison tests of P-66 and contemporaries. Cannot remember where. Think it happened at Wright-Pat, USAAC sponsored, but have no idea where I saw the data published. P-66 did OK v fighter with similar hp. I know Dick Palmer thought they'd given him a P-36 engine, and...
Nice depictions. Do you have details on P-66 engines? 1830 dash what? Were all P-66s equipped with the same HP P&Ws? Actual HP? Prop Ham Standard what? H-1 had a Twin Wasp Jr. 1535 dash what? 825 HP? The H1 as flown had more than the book value. Dick Palmer told me so. Among other things they...