Warbird Information Exchange

That's pretty neat. I'm glad the ALS L-2s don't have them, though. I can just see the kinds of odd looks we might get at airshows! "Hey son, how are you going to get home" or "How'd you break the propeller like that?"

Ryan

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Aerial Photographer with Red Wing Aerial Photography currently based at KRBD and tailwheel CFI.
Websites: Texas Tailwheel Flight Training, DoolittleRaid.com and Lbirds.com.

The horse is prepared against the day of battle: but safety is of the LORD. - Prov. 21:31 - Train, Practice, Trust.

I've seen that. I wonder, is this something one could possibly 'MacGuyver together' if your down in the bush
with one bent prop blade? (all things considered, of course). Are there any pitch change requirements?

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He bowls overhand...He is the most interesting man in the world.
"In Peace Japan Breeds War", Eckstein, Harper and Bros., 3rd ed. 1943(1927, 1928,1942)
"Leave it to ol' Slim. I got ideas...and they're all vile, baby." South Dakota Slim
"Ahh..."The Deuce", 28,000 pounds of motherly love." quote from some Mojave Grunt
DBF

Hence the stupidest remark in aviation: "If it looks right, it flies right." Actually, there's a lot of great designs and ideas killed because it's 'odd looking'.

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James K

"Switch on the underwater landing lights"
Emilio Largo, Thunderball.

www.VintageAeroWriter.com

I remember at Dx about 20 years ago they temporarily hung (I think) a Buchon prop on a Spit, or vice versa & it was reported to "feel all wrong". Something about the pitch control being all out of wack.

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Those who possess real knowledge are rare.

Those who can set that knowledge into motion in the physical world are rarer still.

The few who possess real knowledge and can set it into motion of their own hands are the rarest of all.

IIRC th single blade prop for 40-50 hp Tayor/Piper Cubs and Taylorcraft light aircraft (Taylor designs, BTW) had a pitch vs RPM hub that allowed low low pitch for take off and a higher setting for cruise. Again, IIRC, the blade teetered fore and aft on the hub as part of the pitch change. It was all automatic and quite efficient. Later engine developments (more HP!) made the single blade set up un-nessesary and it passed from commercial viability.

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Charles Neely

Many thanks again to all who posted an answer to my question. It's nice to have a prop-er understanding of this aspect of aviation!

Michael

The one bladed prop was supposed to be the most effecient (always cutting clean air) of the props. Now you all went and ruined it, I have won many a bar room bet with that little bit of trivia.

The CAF's Martin B-26 and all the rest were originally equiped with 4 blade Curtis Electrics but availability (or maybe cost) was a problem duiring the restoration. A pair of 3-blade Ham Standards from a surplus C-123 became available and were used when Caroline first flew again. Talking with the guys flying it (Vernon, JK and others), it vibrated badly and was a real dog speed and climb-wise. When the correct 4-blade props were installed, it was smooth and alot better preformer. There is a difference!

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It's what you learn after you think you know it all, that counts.

Is there anyone out there with one of those Everell props? How about the drawings so that one could be manufactured?

Gary