Return-Path: Received: from [209.144.36.35] (HELO mail.hansoninfosys.com) by logan.com (CommuniGate Pro SMTP 4.2b2) with SMTP id 3203753 for flyrotary@lancaironline.net; Mon, 03 May 2004 13:04:32 -0400 Received: (qmail 25998 invoked by uid 89); 3 May 2004 17:04:32 -0000 Received: from unknown (HELO dv) (216.89.133.186) by 0 with SMTP; 3 May 2004 17:04:32 -0000 Message-ID: <007001c43130$ea7d7be0$800010ac@royell.net> From: "Dean" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Injector testing Date: Mon, 3 May 2004 12:06:02 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_006D_01C43107.01180520" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 This is a multi-part message in MIME format. ------=_NextPart_000_006D_01C43107.01180520 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Jim and John, etal For single engine aircraft certificated under FAR Part 23, the VNE ( red = line ) has to be established at 90% of demonstrated flutter-free speed. = I would certainly think that it would be in all home-built aircraft = designers' interest to stay close to this 10% minimum margin when = establishing the VNE for their design. You might check with the Cozy = designer.=20 Dean Van Winkle ( Retired Aero Engineer/Flight Test Engineer ) RV-9A Fus/Finish 13B NA ----- Original Message -----=20 From: Jim Sower=20 To: Rotary motors in aircraft=20 Sent: Monday, May 03, 2004 9:41 AM Subject: [FlyRotary] Re: Injector testing <... VNE for the plans model Cozy IV is 220 mph ... if I can cruise at = 200 kts I'll be happy ...>=20 200 kts is 230 mph.=20 John Slade wrote:=20 >What would be common for an O-360 powered plane? I think VNE for = the plans model Cozy IV is 220mph That's IAS for some reason I never = quite followed.> What sort of top speed, and cruise speed do you expect? = I really don't know. If I can cruise at 200 kts I'll be happy. Anything = over that is gravy. Top speed is only for bragging rights anyway - = right?John (planning to beat all the RVs in races) --=20 Jim Sower ... Destiny's Plaything=20 Crossville, TN; Chapter 5=20 Long-EZ N83RT, Velocity N4095T=20 =20 ------=_NextPart_000_006D_01C43107.01180520 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Jim and John, etal
 
For single engine aircraft certificated under = FAR Part 23,=20 the VNE ( red line ) has to be established at 90% of demonstrated = flutter-free=20 speed. I would certainly think that it would be in all home-built = aircraft=20 designers' interest to stay close to this 10% minimum margin when = establishing=20 the VNE for their design.  You might check with the Cozy=20 designer. 
 
Dean Van Winkle ( Retired Aero Engineer/Flight = Test=20 Engineer )
RV-9A  Fus/Finish  13B NA
----- Original Message -----
From:=20 Jim=20 Sower
Sent: Monday, May 03, 2004 9:41 = AM
Subject: [FlyRotary] Re: = Injector=20 testing

<... VNE=20 for the plans model Cozy IV is 220 mph ... if I can=20 cruise at 200 kts I'll be happy ...>
200 kts is = 230=20 mph.=20

John Slade wrote:=20

 >What would be common for an O-360 = powered=20 plane? I think VNE for the plans model Cozy IV is 220mph That's = IAS for=20 some reason I never quite=20 = followed.> What sort of top speed, and cruise = speed do you=20 expect? I really don't = know. If I can=20 cruise at 200 kts I'll be happy. Anything over that is=20 gravy. Top speed is only for bragging rights anyway -=20 right?John (planning to = beat all the=20 RVs in=20 = races)

--
Jim Sower ... Destiny's Plaything
Crossville, TN; = Chapter 5=20
Long-EZ N83RT, Velocity N4095T
  =

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