X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail.fdic.gov ([167.176.6.5] verified) by logan.com (CommuniGate Pro SMTP 5.1.5) with ESMTPS id 1802407 for flyrotary@lancaironline.net; Wed, 31 Jan 2007 14:43:43 -0500 Received-SPF: pass receiver=logan.com; client-ip=167.176.6.5; envelope-from=brogers@fdic.gov DKIM-Signature: a=rsa-sha1; d=fdic.gov; s=fdic; c=simple; q=dns; t=1170272566; x=1170358966; h=from:date:subject:message-id:content-class:content-type; b=vKL4piKFYTCQNB8Hy47oG2cSj5C3uiVLymh0SzK3LAXcLWx8Yy8b8PFpV/zTWODNMERKZJahtKFP2Su2GGw4LA== X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C7456F.F02E5404" Subject: RE: [FlyRotary] Re: New Cowl Contest Date: Wed, 31 Jan 2007 13:42:27 -0600 Message-ID: <15839C662A43B844B6E393DBFEAA90BF05C11CB5@dalexc101p.prod.fdic.gov> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: New Cowl Contest Thread-Index: AcdFbXLkVLjycwqNQyGrdBb/j0CQ1AAAmIjg From: "Rogers, Bob J." To: "Rotary motors in aircraft" Return-Path: BRogers@FDIC.gov X-OriginalArrivalTime: 31 Jan 2007 19:42:28.0322 (UTC) FILETIME=[F0934C20:01C7456F] This is a multi-part message in MIME format. ------_=_NextPart_001_01C7456F.F02E5404 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable How close will the propellers come to hitting the ground on rotation for takeoff? =20 ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of H & J Johnson Sent: Wednesday, January 31, 2007 1:23 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: New Cowl Contest =20 Thanks Grant, the Avanti was definatly an influence on the design, I was going for absolute cruise efficency and in the end, if its designed properly its possible to get some pretty interesting cruise projections from a design like this. It still needs to be optimized a bit as there is some issues between the nacell's and the fuze, but thats all fixable. I designed it entirely on SolidWorks, the fuze shape is controled by something like 85 algebra equations which are driven off of two 'control' splines. By dragging the points on the spline I can control the station curvature and smoothly transition down the length of the fuse, it only took 1 or 3 tries before I figured out how to make it all work :-) =20 Jarrett =20 ----- Original Message ----- From: "Schemmel, Grant" =20 Date: Wednesday, January 31, 2007 11:09 am=20 Subject: [FlyRotary] Re: New Cowl Contest=20 > > I've several airframe design's but the one that prompted me to=20 > build the machine was this one[attached]. It's a four seat=20 > [expandable to 6 but would be a little cramped <-- like the back=20 > seat of a 172] twin, using two 20b's or two four rotor's. It would=20 > also fly on 13b's but they would be in a minimum weight model, not=20 > alot of amenities. <=20 >=20 > Way cool Jarret - looks like a cut down Piagio Avanti, one of my=20 > personal favorite designs.=20 > Good luck on it!=20 >=20 >=20 > Grant Schemmel=20 >=20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ ------_=_NextPart_001_01C7456F.F02E5404 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

How close will the propellers come = to hitting the ground on rotation for takeoff?

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of H & J Johnson
Sent: Wednesday, January = 31, 2007 1:23 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = New Cowl Contest

Thanks Grant, the Avanti was definatly an influence on = the design, I was going for absolute cruise efficency and in the end, if its designed properly its possible to get some pretty interesting cruise projections from a design like this. It still needs to be optimized a = bit as there is some issues between the nacell's and the fuze, but thats all = fixable. I designed it entirely on SolidWorks, the fuze shape is controled by = something like 85 algebra equations which are driven off of two 'control' splines. = By dragging the points on the spline I can control the station curvature = and smoothly transition down the length of the fuse, it only took 1 or 3 = tries before I figured out how to make it all work = :-)

Jarrett<= /p>

----- Original Message = -----

From: "Schemmel, Grant" <Grant.Schemmel@Aeroflex.com> =

Date: = Wednesday, January 31, 2007 11:09 am

Subject: [FlyRotary] Re: New Cowl Contest

> > I've several airframe design's but the one that = prompted me to
> build the machine was this one[attached]. It's a four seat
> [expandable to 6 but would be a little cramped <-- like the back =
> seat of a 172] twin, using two 20b's or two four rotor's. It would =
> also fly on 13b's but they would be in a minimum weight model, not =
> alot of amenities. <
>
> Way cool Jarret - looks like a cut down Piagio Avanti, one of my =
> personal favorite designs.
> Good luck on it!
>
>
> Grant Schemmel
>

--

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