Re: Improving takeoff and climb.

[Bradley Bormuth]

'Thank you all for your help. I think the only way we can improve
performance is to install a variable pitch prop like the Aeromatic.
If anyone knows of an airworthy one just sitting around, please e-
mail me. If not, I guess I'll give Kent Tarver a call.

Bradley Bormuth
NC28640

--- In fairchildclub@yahoogroups.com, "Bradley Bormuth"

wrote:

>
> Hello folks,
>
> We have just completed the restoration on our 24W40; however, I

must

> say that the takeoff and climb I am getting leaves a lot to be
> desired. I operate out of a 3000' grass strip with trees and

power

> lines on both ends and the takeoff (to me) seems a little too slow
> (maybe even on the edge of unsafe).
>
> The reason for posting this is I wanted to know what experiences

you

> guys have had in this area and anything I can do to improve my
> performance. We have a Warner 165 with a Sensenich W86CA-67 fixed
> pitch wood prop.
>
> BTW, one thing in particular that I would like to know about is

what

> are your opnions about installing an Aeromatic prop in place of

the

> Sensenich?
>

'

[windshieldguy2000]

'Brad: I'm rebuilding my Ranger powered F-24 and like you, want an
Aeromatic prop for it. After a very lengthy search, I finally located
an F-220 hub and am having Kent Tarver rebuild it and install new
blades. The blades and their attaching lag screws are "the devil in
the details" on the Aeromatic prop; if you're lucky enough to locate a
prop, I HIGHLY reccomend installing new blades. That being said, the
difference in performance between the Aeromatic and Sensenich is huge.

If you can't locate an Aeromatic, you may want to contact Mike Redpath
of Falcon Propellers in Goldsby, OK. They build a very nice fixed
pitch wood prop that outperforms the Sensenich and the price is way
more reasonable than what you'll spend on an Aeromatic. You can
contact Mike on his cell phone at 405-414-1072.

On your performance numbers, the speeds you are using sound fine, but
the rate of climb seems a little low if you're lightly loaded. I also
thought your static RPM on take-off is the slightest bit low, I'd look
for 1900 RPM on a Warner 165, but I'm not an expert on the Warner at
all - maybe some of the Warner guys who post to this board have better
information than I.

Best Wishes,
Brad Donner
NC77605'