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Actually I would prefer a wood/composite type of prop. I just got off the phone with Craig Catto and he has agreed to look further into the deal. He is really a smart guy. Nice to talk with also. Lots of experience there. We will see what he comes back with. He did confirm my thinking is correct about having excess power for take off and climb. The idea is to over power the fixed pitch prop to get it spinning and working. Once you reach those numbers all is good. I am hoping it can be done.
KIND REGARDS Thomas Giddings 727 858 1772
On Apr 26, 2012, at 11:59 AM, Charlie England wrote:
They still make wood props, too, & they would almost certainly
be able to hit your RPM/HP/speed target if you can give them good
numbers on the HP & real world speed for your airframe. They
were able to duplicate the speed of a Bernie Warnke prop (very, very
good prop) on an RV-4 I owned about 10 years ago.
Charlie
On 04/26/2012 12:28 AM, William Jepson wrote:
Another possibility is Senessich (never could spell that), they
have a new ground adjustable prop. Carbon blades aluminum hub,
which is supposed to be designed around RV speed and HP. They
are supposed to offer a 2 and 3 blade option. Bill Jepson
On Apr 25, 2012 8:53 PM, "Michael
McMahon" < afm528@gmail.com> wrote:
I’ve
been thinking along the same lines. The one person
I’ve heard of often as a potential builder is Craig
Catto, www.cattoprops.com
. Last time I looked his props were around $3,000, I
think, but I have no idea if that is current. There
is also a new possibility, which is to have the prop
manufactured on a resin printer and then wrap it in
carbon fiber. I’ve done a little research on that
front and spoke to a manufacturer last year at the
CAFÉ Electric Flight Symposium (this weekend in Santa
Rosa!) who confirmed that it’s possible and is already
being done for military drones.
Please
post your findings!
Thanks,
Mike
From:
Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
On Behalf Of Thomas Giddings
Sent: Wednesday, April 25, 2012 6:57 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Fixed Pitch props.
I am curious what you folks might recommend for a fixed
pitch prop builder for my project. I will have a lot of
excess power and do not think it would be as difficult
to get an acceptable level of performance with a lot
less money and simplicity. Your thoughts
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