Return-Path: <13brv3@bellsouth.net> Received: from imf23aec.mail.bellsouth.net ([205.152.59.71] verified) by logan.com (CommuniGate Pro SMTP 4.1.4) with ESMTP id 2601720 for flyrotary@lancaironline.net; Wed, 24 Sep 2003 11:05:39 -0400 Received: from rad ([68.212.12.251]) by imf23aec.mail.bellsouth.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP id <20030924150538.IEWT20055.imf23aec.mail.bellsouth.net@rad> for ; Wed, 24 Sep 2003 11:05:38 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Jet Hawk Date: Wed, 24 Sep 2003 10:05:38 -0500 Message-ID: <000001c382ad$5050c6d0$0201a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C38283.677ABED0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C38283.677ABED0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable 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.=20 =20 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. =20 =20 Thanks, Rusty =20 ------=_NextPart_000_0001_01C38283.677ABED0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
In 94 I got the idea of using a rotary to drive a ducted fan. = Information=20 was scarce. It wasn't until 97 that I found a book for sale on the = internet,=20 "Ducted Fan Design" by Marc de Piolenc. It is the equations in that book = my=20 ductfan was designed to. There is an example in the book, where Marc = designs a=20 ducted fan to improve the performance of the Jet Hawk. That was the = first I had=20 heard of the Jet Hawk. So my knowledge of it is limited to what I've = read in=20 that book. 
 
I tried at=20 one time to get plans, but never found anyone that wanted to sell = theirs. =20 One of the people that replied did refer me to Marc de Piolenc=20 though.  Since you're pretty well immersed in the ducted = fan=20 world, have you seen any other aircraft similar to the Jet = Hawk.  In=20 other words, internal ducted fan designs that look like real=20 jets?  If high rpm is good, then what would be better = than a=20 Renesis.  On the other  hand, there might be = some affordable=20 real jet engines available now.  I just haven't=20 looked.  
 
Thanks,
Rusty
 
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