Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 492862 for flyrotary@lancaironline.net; Sun, 31 Oct 2004 07:19:48 -0500 Received-SPF: none receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-069-132-109-019.carolina.rr.com [69.132.109.19]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i9VCJFkd006076 for ; Sun, 31 Oct 2004 07:19:16 -0500 (EST) Message-ID: <001901c4bf43$dd04a640$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: 3000 fpm :-) (unofficially) Date: Sun, 31 Oct 2004 07:19:25 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0016_01C4BF19.F3D64510" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0016_01C4BF19.F3D64510 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageNo,Rusty, the #$%^@ weather continued to keep the ceiling low = until about 2 hour after my deadline to a launch. THEN it began to = clear up. Low ceilings without letup for two weeks and it couldn't clear = two hours early. =20 Really regret not making it, but just not up to a 16 hour drive ( I must = admit I have gotten very spoiled by being able to fly everywhere). = Grandson's birthday was Saturday so he was very pleased that grandad = attended his party rather than off flying {:>). Got to start on redesign of my exhaust/muffler system. From the theory = (If I understand it) It appears that the reactive (sound canceling) type = muffler is the approach with the most promise. It tends to reduce low = freq noise (which is the predominate energy) in the rotary's exhaust. = The absorption type muffler appears to be best for frequencies above = 1000HZ. So perhaps a combination. In any case, I intend to get the noise level down to a more acceptable = level before next Years flyins. Appreciate you continuing to share your performance data. While nothing = comparable to you performance, my overweight RV-6A has also responded = very nicely to the 2.85 and larger prop and the good news is that my = fuel burn and airspeed appear to be very comparable to the 2.17 = combination. Rpm is slightly higher (approx 200-300 rpm) for the same = 2.17 fuel burn rate - I presume due to a slight lesser load of the = gearbox/prop combination at cruise. Initial ROC has increased by approx = 600 fpm. Still need to get some more definitive data on performance. So will = probably start that in a couple of weeks. Best Regards Ed. =20 ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Saturday, October 30, 2004 10:57 PM Subject: [FlyRotary] Re: 3000 fpm :-) (unofficially) Great to hear about the performance! Wow! 3000 fpm and UP at = that{:>). Sounds like you are getting the little bird debugged just = great. Ed Anderson=20 Thanks Ed. It's finally starting to be fun. BTW, did you make it to = Lake City? Cheers, Rusty (still happy to be rid of the turbo) ------=_NextPart_000_0016_01C4BF19.F3D64510 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
No,Rusty,  the #$%^@ weather = continued to keep=20 the ceiling low until about 2 hour after my deadline to a launch.  = THEN it=20 began to clear up. Low ceilings without letup for two weeks and it = couldn't=20 clear two hours early.  
 
Really regret not making it, but just = not up to a=20 16 hour drive ( I must admit I have gotten very spoiled by being able to = fly=20 everywhere).  Grandson's birthday was Saturday so he was very = pleased that=20 grandad attended his party rather than off flying {:>).
 
Got to start on redesign of my = exhaust/muffler=20 system.  From the theory (If I understand it) It appears that the = reactive=20 (sound canceling) type muffler is the approach with the most = promise.  It=20 tends to reduce low freq noise (which is the predominate energy) in the = rotary's=20 exhaust.  The absorption type muffler appears to be best for = frequencies=20 above 1000HZ.  So perhaps a combination.
 
In any case, I intend to get the noise = level down=20 to a more acceptable level before next Years flyins.
 
Appreciate you continuing to share your = performance=20 data.  While nothing comparable to you performance, my overweight = RV-6A has=20 also responded very nicely to the 2.85 and larger prop and the good news = is that=20 my fuel burn and airspeed appear to be very comparable to the 2.17=20 combination.  Rpm is slightly higher (approx 200-300 rpm) for the = same 2.17=20 fuel burn rate - I presume due to a slight lesser load of the = gearbox/prop=20 combination at cruise. Initial ROC has increased by approx 600 = fpm.
 
Still need to get some more definitive = data on=20 performance.  So will probably start that in a couple of=20 weeks.
 
Best Regards
 
Ed. 
 
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Saturday, October 30, = 2004 10:57=20 PM
Subject: [FlyRotary] Re: 3000 = fpm :-)=20 (unofficially)

Great = to hear about=20 the performance!  Wow! 3000 fpm and UP at that{:>).  = Sounds=20 like you are getting the little bird debugged just great.
 
Ed Anderson 
 
 
Thanks Ed.  It's finally starting to be=20 fun.   BTW, did you make it to Lake=20 City?
 
Cheers,
Rusty (still happy to be rid of the=20 turbo) 
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