Return-Path: Received: from access.aic-fl.com ([204.49.76.2] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2929593 for flyrotary@lancaironline.net; Mon, 12 Jan 2004 19:24:27 -0500 Received: from homep276y68tk5 (unverified [204.49.76.200]) by access.aic-fl.com (Rockliffe SMTPRA 4.5.6) with SMTP id for ; Mon, 12 Jan 2004 18:25:41 -0600 Message-ID: <004101c3d96b$cda31150$c84c31cc@homep276y68tk5> From: "Richard" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: 100 hp options. Date: Mon, 12 Jan 2004 18:21:43 -0600 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_003D_01C3D938.EE4AA090" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4910.0300 This is a multi-part message in MIME format. ------=_NextPart_000_003D_01C3D938.EE4AA090 Content-Type: multipart/alternative; boundary="----=_NextPart_001_003E_01C3D938.EE4AA090" ------=_NextPart_001_003E_01C3D938.EE4AA090 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Monday, January 12, 2004 4:49 PM Subject: [FlyRotary] Re: 100 hp options. I intend to build a Zenair CH801 (13B), at the moment it is not = approved by the PFA, my second choice is a CH701. My dilemma is ; to = match a rotary to 100hp efficiently would it be best to "make" a single = rotor, run a 13B direct, de-rate a 13B/PSRU or use the Soob EA81 that I = already have. =20 =20 Hi Tony, =20 Welcome to Flyrotary. We're a pretty civil group here, so fear not = :-) =20 =20 As for your engine choice, I think the only reasonable Mazda rotary = option for 100 HP is the single rotor. The normal 13B probably won't = give you an acceptable power to weight ratio for only 100 HP. For = example, the "normal" installed weight for a 13B is around 325#, which = is a lot for only 100 HP. The good news is that several folks, = including Richard Sohn (on the list) are developing some promising = single rotors. =20 =20 There are also some commercially available, smaller rotaries that = would be suitable, but they're expensive, and somewhat unavailable. =20 =20 Cheers, Rusty Hi Tony, I am attaching the data sheet of my One-Rotor converion. The prove of principle version has run 5hrs. primarily for temperature = cycles. The prototype version, which will be flyable, is in the works = right now. I will fly the prototype in my plane, hopefully sometime = later this year.=20 I have no real plans yet of how to make it available to others. Richard Sohn N-2071U unicorn@gdsys.net www.gdsys.net/WWWmembers/unicorn/ =20 ------=_NextPart_001_003E_01C3D938.EE4AA090 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
 
----- Original Message -----
From:=20 Russell=20 Duffy
To: Rotary motors in aircraft =
Sent: Monday, January 12, 2004 = 4:49=20 PM
Subject: [FlyRotary] Re: 100 hp = options.

I intend to build a Zenair CH801 = (13B), at the=20 moment it is not approved by the PFA, my second choice is a CH701. My = dilemma=20 is ; to match a rotary to 100hp efficiently would it be best to "make" = a=20 single rotor, run a 13B direct, de-rate a 13B/PSRU or use the = Soob EA81=20 that I already have.
 
 
Hi=20 Tony,
 
Welcome to=20 Flyrotary.  We're a pretty civil group here, so fear not = :-) =20
 
As for your=20 engine choice, I think the only reasonable Mazda rotary option = for 100 HP=20 is the single rotor.  The normal 13B probably won't give you an=20 acceptable power to weight ratio for only 100 HP.  For example, = the=20 "normal" installed weight for a 13B is around 325#, which is a lot for = only=20 100 HP.  The good news is that several folks, including Richard = Sohn (on=20 the list) are developing some promising single rotors. =20
 
There are=20 also some commercially available, smaller rotaries that would be=20 suitable, but they're expensive, and somewhat=20 unavailable.  
 
Cheers,
Rusty
 
Hi Tony,
 
I am attaching the data = sheet of=20 my One-Rotor converion.
The prove of principle version = has run=20 5hrs. primarily for temperature cycles. The prototype version, which = will be=20 flyable, is in the works right now. I will fly the prototype in my = plane,=20 hopefully sometime later this year. 
I have no real plans yet of how = to make it=20 available to others.
 
Richard Sohn
N-2071U
unicorn@gdsys.net
www.gdsys.net/WWWmember= s/unicorn/  
------=_NextPart_001_003E_01C3D938.EE4AA090-- ------=_NextPart_000_003D_01C3D938.EE4AA090 Content-Type: text/html; name="Specification.htm" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="Specification.htm" One Rotor Wankel Engine Specification

One Rotor Wankel Engine Specification

 

 

 

RES12

 

Power 110hp/7500RPM

Weight (w/o cooling rads) dry 170lb

Incl. Alternator, Redrive, Starter

Rotax type prop flansh

Redrive Hirth G 40

Ratios 2.03, 2.25, 2.64, 2.96, 3.33

 

 

 

RES13

 

Power 140hp/7500RPM

Weight (w/o cooling rads) dry 195lb

Incl. Alternator, Redrive, Starter

Redrives Hirth G 40

Ratios 2.03, 2.25, 2.64, 2.96, 3.33

RWS RD-1B (1:2.176)

RWS RD-1C (1:2.85)

 

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