X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from hrndva-omtalb.mail.rr.com ([71.74.56.125] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with ESMTP id 4417938 for flyrotary@lancaironline.net; Wed, 04 Aug 2010 00:17:40 -0400 Received-SPF: pass receiver=logan.com; client-ip=71.74.56.125; envelope-from=clouduster@austin.rr.com Return-Path: X-Authority-Analysis: v=1.1 cv=puNM1lMKksHKE6hmMqMstpyRmqXf+M/teYaxpNq+S3U= c=1 sm=0 a=PFjIftNzJ_MA:10 a=BOf1DvMWru6y9C8B/8ZwLA==:17 a=UiGp4xXOrvW53onJ5PEA:9 a=s2MUtl-V8mGbz-v0uc4A:7 a=kqhVHAfeGvA-jCJyksv6d3BvzTkA:4 a=wPNLvfGTeEIA:10 a=NvXufDWjZb-MxZJQMXIA:9 a=_5oZFiUcouLCnBNBFbIA:7 a=L3wFVGQp3VE6QZwOSBcJ0YFyo30A:4 a=BOf1DvMWru6y9C8B/8ZwLA==:117 X-Cloudmark-Score: 0 X-Originating-IP: 66.25.152.22 Received: from [66.25.152.22] ([66.25.152.22:62575] helo=DWHPC) by hrndva-oedge04.mail.rr.com (envelope-from ) (ecelerity 2.2.2.39 r()) with ESMTP id 66/EB-24046-0C9E85C4; Wed, 04 Aug 2010 04:17:04 +0000 Message-ID: <112828E9AA3A4EC5A5B6168925261246@DWHPC> From: "Dennis Havarlah" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: Hushpower failures Date: Tue, 3 Aug 2010 23:16:56 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_019F_01CB3361.F71C1C50" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18197 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18197 This is a multi-part message in MIME format. ------=_NextPart_000_019F_01CB3361.F71C1C50 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable My Hushpower resonator ( short hushpower) is still going - 250 hours on = Renesis and LOVE IT!! Everyone that hears my fly by comments on how = quiet the plane is. About 10 hours ago I removed the muffler and = removed the few peices of the baffle still inside. I never saw any = performancy decrease due to blockage as it failed. Now it is only an = enlarged muffler shell in the exhaust system. My neighbors tell me it = is no louder and the tone of the exhaust is a little deeper.=20 My 4 inch dia. tangantial pipe (used to turn the exhaust 180 deg.) is = still doing fine with no signs of any failure. This is located foward = (toward the prop) and is fed by the factory exhaust maifold. This = system combined with the split side flange exhaust of the Renesis makes = for a very easy to control exhaust.=20 As far as Renesis Horsepower goes - I have a Catto 76X88 porp and RD1-C = PSRU on my RV-7A - I pretty well match my neighbor"s RV-7A with a = Lycoming 180 engine with dual electronic ignition. =20 The following has been addressed before but I'll repeat it based on my = experience. I use 0.5 to 0.7 oz of WalMart outboard oil and Marvel mixed half and = half per gallon of regular grade Mogas. Cost is about $12.00/gal for = the oil mixture. In cruise I use 8 - 9 gph and at 0.6 oz/gal I would = burn 213 gallons of Mogas for each gallon of oil. Mogas is about $1.00 = cheaper than 100 LL. With the oil cost figures included I save $200 in = fuel cost when I fly 213/9 =3D 23.6 hours.=20 My dual fuel pumps are in the cabin, foward of the seats on the floor. = I have never had any fuel vapor problems - even in Texas in the summer. = Hope this helps some. Dennis Haverlah Has anyone had their hushpower muffler fail, and if so, how did they = fail? Thanks, Brian Trubee - ------=_NextPart_000_019F_01CB3361.F71C1C50 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

My Hushpower resonator ( short = hushpower) is still=20 going - 250 hours on Renesis and LOVE IT!! Everyone that = hears my=20 fly by comments on how quiet the plane is. About 10 hours ago I = removed=20 the muffler and removed the few peices of the baffle still inside. = I never=20 saw any performancy decrease due to blockage as it failed. = Now it is=20 only an enlarged muffler shell in the exhaust system. My = neighbors=20 tell me it is no louder and the tone of the exhaust is a little=20 deeper.

My 4 inch dia. tangantial pipe (used to = turn the=20 exhaust 180 deg.) is still doing fine with no signs of any = failure. This=20 is located foward (toward the prop) and is fed by the factory exhaust=20 maifold. This system combined with the split side flange = exhaust=20 of the Renesis makes for a very easy to control = exhaust.

As far as Renesis Horsepower goes - I have a Catto 76X88 porp = and RD1-C=20 PSRU on my RV-7A - I pretty well match my neighbor"s RV-7A with a = Lycoming 180=20 engine with dual electronic ignition.

The following has been addressed before but I'll repeat it based = on my=20 experience.

I use 0.5 to 0.7 oz of WalMart outboard oil and Marvel mixed half = and=20 half per gallon of regular grade Mogas. Cost is about = $12.00/gal for=20 the oil mixture. In cruise I use 8 - 9 gph and at 0.6 oz/gal = I would=20 burn 213 gallons of Mogas for each gallon of oil. Mogas is = about=20 $1.00 cheaper than 100 LL. With the oil cost figures = included I save=20 $200 in fuel cost when I fly 213/9 =3D 23.6 hours.

My dual fuel pumps are in the cabin, foward of the seats on the=20 floor. I have never had any fuel vapor problems - even in Texas in = the=20 summer.

Hope this helps some.

Dennis Haverlah

Has anyone had their hushpower muffler fail, and if so, how did = they=20 fail?

Thanks,

Brian Trubee

-
------=_NextPart_000_019F_01CB3361.F71C1C50--