Return-Path: Received: from mail.viclink.com ([66.129.220.6] verified) by logan.com (CommuniGate Pro SMTP 4.1.4) with ESMTP id 2602766 for flyrotary@lancaironline.net; Wed, 24 Sep 2003 22:54:24 -0400 Received: from viclink.com (p104.AS1.viclink.com [66.129.192.104]) by mail.viclink.com (8.11.7/8.11.7) with ESMTP id h8P2sLH54308 for ; Wed, 24 Sep 2003 19:54:21 -0700 (PDT) Message-ID: <3F725887.5090607@viclink.com> Date: Wed, 24 Sep 2003 19:52:55 -0700 From: Perry Mick User-Agent: Mozilla/5.0 (Windows; U; Win95; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Jet Hawk References: Content-Type: multipart/alternative; boundary="------------000306020509030002010900" X-RAVMilter-Version: 8.4.3(snapshot 20030217) (mail.viclink.com) --------------000306020509030002010900 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Russell Duffy wrote: > In 94 I got the idea of using a rotary to drive a ducted fan. > Information was scarce. It wasn't until 97 that I found a book for > sale on the internet, "Ducted Fan Design" by Marc de Piolenc. It is > the equations in that book my ductfan was designed to. There is an > example in the book, where Marc designs a ducted fan to improve the > performance of the Jet Hawk. That was the first I had heard of the Jet > Hawk. So my knowledge of it is limited to what I've read in that book. > > I tried at one time to get plans, but never found anyone that wanted > to sell theirs. One of the people that replied did refer me to Marc > de Piolenc though. Since you're pretty well immersed in the ducted > fan world, have you seen any other aircraft similar to the Jet Hawk. > In other words, internal ducted fan designs that look like real > jets? If high rpm is good, then what would be better than a Renesis. > On the other hand, there might be some affordable real jet engines > available now. I just haven't looked. > > Thanks, > Rusty > There is a really cool one, called Questar or something like that, mentioned in Marc's book, but I don't have the book here to verify. Unfortunately I think it is a dead project, I tried a year or so ago to follow up on it and got nowhere. It was being developed in California. Tomorrow I can get the book at the hangar and tell you more. -- Perry --------------000306020509030002010900 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Russell Duffy wrote:

Message
In 94 I got the idea of using a rotary to drive a ducted fan. Information was scarce. It wasn't until 97 that I found a book for sale on the internet, "Ducted Fan Design" by Marc de Piolenc. It is the equations in that book my ductfan was designed to. There is an example in the book, where Marc designs a ducted fan to improve the performance of the Jet Hawk. That was the first I had heard of the Jet Hawk. So my knowledge of it is limited to what I've read in that book.

I tried at one time to get plans, but never found anyone that wanted to sell theirs. One of the people that replied did refer me to Marc de Piolenc though. Since you're pretty well immersed in the ducted fan world, have you seen any other aircraft similar to the Jet Hawk. In other words, internal ducted fan designs that look like real jets? If high rpm is good, then what would be better than a Renesis. On the other hand, there might be some affordable real jet engines available now. I just haven't looked.

Thanks,

Rusty

There is a really cool one, called Questar or something like that, mentioned in Marc's book, but I don't have the book here to verify. Unfortunately I think it is a dead project, I tried a year or so ago to follow up on it and got nowhere. It was being developed in California. Tomorrow I can get the book at the hangar and tell you more.

-- 
Perry

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