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McCauley SEAPLANE PROP WANTED

frebrd

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I'm looking for a McCauley 1B90-CM prop for use on a seaplane C-85-12F around a 74" x38. I have a Sensenich CK 72-42 I can trade or sell as well.
 

JimC

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If you have a field approval or STC for mounting it on either a J3 or PA-11, I sure would like to get a copy. That is a great prop choice, but is not approved for installation on a C85 J3. It will pull almost as well as a 7535 (which isn't approved either).
 

Renkou1

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Ya. That 7535 was something on the C90! Good I have sold it to remove temptation.
 

JimC

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What was the fastest you turned the 7535 during climb?

I tried it at 2850 during a 55 mph climb with low fuel, and the climb angle was impressive (to me, anyway).
 

Renkou1

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Just one takeoff at normal c90 redline for 95 HP. Forgot what that is. My 7144 doesn't require rpm guage monitoring. Climbed at about 58. Felt and appeared about 20 %better than 7144. Steep and fast climb. Felt better than Supercub. Certainly quicker off the ground. I'm sure I could improve on TO and climb out...didn't want to put any wear on sold prop.
 

JimC

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That'd be 2625 rpm (which isn't allowed on a J3 - TCDS limits the 90 to 2475 max during takeoff and climb). But then, 2850 isn't allowed either - but is a hoot). MUCH better climb than an 18. The problem with the 7535 is that, if you loan it to the wrong person, they will destroy an engine.
 

luvcub

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I have noticed that the 7535 prop is a option for my 0200 leged cub how would this perform on it?
 

cubdriver2

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It's the prop of choice at Greenville for Pa11 guy's who don't want to get beat by a girl again :)

Glenn
 

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