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Thanks for your info. I did contact Craig Catto and here is his response: Hello Tom, That is going to be quite a challenge to fit. We make them for the 540 Berkut, and that is about a 285mph aircraft and have done one for a E-racer turbo 540 at 350HP doing over 300mph. I do not think I want to challenge the auto conversion, just the power curve many times seems hard to fit. We know the curve of the Lyc engine very well and so not such a big deal to fit in these types of applications. Easiest way for you to fit it is probably with a MT. All the best, Craig I was surprised at his answer as i thought he did Tracy's prop. The speed of the Venture will not be that much more then what he described. It may be the high HP I will be using.Any more suggestions would be appreciated.
KIND REGARDS Thomas Giddings 727 858 1772
On Apr 26, 2012, at 1:28 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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