bl65 metal prop

[jack clifton]

I found a page on the sensinich website showing tsds for prop.
It showed a 74CK-2-38 for standard cruise prop. Does anyone know if this is a metal or wood? I am not experienced enough to tell, it weighs 21 lbs. I think that is a metal prop., Anyway, if this is the metal prop, this is the one I am looking for.

[Garry Crookham]

Re: bl65 metal prop

Jack:

Here is a copy of the BL65 TCDS showing the approved metal prop:

110. Propeller - Sensenich M74CK-2
fixed pitch metal 21 lb. (-46)
(Lycoming 65 hp. engine only).
Static r.p.m. at maximum
permissible throttle setting:
Not over 2400 not under 2250.
No additional tolerance permitted.
Diameter: Not over 72 in.
not under 68 in.


Garry Crookham
N5112M
Tulsa

[VictorBravo]

Re: bl65 metal prop

Would it be legal to get a Continental prop and re-drill it for the Lycoming pattern (between the existing holes) ? It SHOULD be safe, there's enough metal in that prop hub to handle the loads. It would sure be less expensive than buying a new metal prop for $2000+

[Pearson]

Re: bl65 metal prop

Well if it is, I have an Isky cam, a set up pop up pistons, and a three duece set up I want to put in my little A-65. Of course we can all dream!

[VictorBravo]

Re: bl65 metal prop

My point was that an FAA approved and loved propeller (the M74CK series), that was originally drilled for a Continental, and then re-drilled for a Lycoming, would not be a big stretch. The same stretch it would be replacing a certified Lycoming 65 engine on a T-craft with a Continental.

[clipit]

Re: bl65 metal prop

the continental 65,75,80,85,90, and 0-200 props have the same bolt patern as the lycoming 65. just the pilot hole is bigger on the continental. so a small bushing will adapt it to the lycoming. my 65 lyc aeronca cheif has this pilot bushing with the sensenich metal prop 74ck-2-36 greg

[Forrest Barber]

Re: bl65 metal prop

Amen to all that... I use the metal 70-38 on both the Lyc 65 and the Cont. A-75.. yes 70-38