X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) X-Junk-Score: 0 [] X-KAS-Score: 0 [] From: "David Leonard wdleonard@gmail.com" Received: from mail-pf1-f170.google.com ([209.85.210.170] verified) by logan.com (CommuniGate Pro SMTP 6.3.5) with ESMTPS id 364384 for flyrotary@lancaironline.net; Fri, 15 Oct 2021 12:38:11 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.210.170; envelope-from=wdleonard@gmail.com Received: by mail-pf1-f170.google.com with SMTP id 187so8799124pfc.10 for ; Fri, 15 Oct 2021 09:38:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=yqdrbWkeKN+g796AReKXyLims63JoOdlyUIOKbngTSE=; b=KeZLlZ0uG4Un4jUteYih9qH9nF/6texk9JnqlnMq3HmQaLpAi3kZiO/8ysqsJmHLhN Eyw9aDr6FLKQzWBBvi3cwgDJPrzC2kzMGmVkfM8Y1nNqgiiCXes2Wp3cjPHhfnUG20zn 8RweWVvCJB+8eGa+scMez6i10cdSXw4+avgYbDZr8L05J551HXsRr1hA4yJ7or8Smx2s Qn+pBeyztdhPGc41Lf94bj+pmfY0TpuiKqrKdT2ZYqxsULOe06MRjCRl4tD/iiDgdzLh OZWhr75Yeynr7HV+wTc9lumFqbqKknscvhUrnLQ4HNdhxiefdkavlpslvtn9UWyX0EKu yCEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=yqdrbWkeKN+g796AReKXyLims63JoOdlyUIOKbngTSE=; b=O7JSv+m7bheXpE2qubY47joM2rCrtuHE3ylWiGg/SOwLwRYlCuKcul+3E8KJbiueki odfXFaQODE+aVFnHPHQ8ttN1/TcmhMlc6fkXcAM6meMCNUkPoYl0iTsb2x8WbMmskv2B /5JqXxlZN63QUUbB6IPOfmv+eug64XhM/yZLOjpEmHHyr5AYzmLj99YmN+zayg/v2IZY InxfpZwf/Bdi3MXNf+HdsT71vdDc5GickdW94E/prqP8DAjnKe9eM+/G9egFicvGr4On SBn4MhxqL4oLjbEvC4eUK2/uBoZA4eA7rkBhSYhza85vUixRWfcbUjY+9v0QVivdgIsO HQ3w== X-Gm-Message-State: AOAM530Jxu860eB0hH1nshYDez/mnMNJOefHLSE5TdvX+56U2PLyrLM8 UOh/W69JcXhUdoze3zVf+Aw3I1D1sPLO+7XI8lVDi1Pd X-Google-Smtp-Source: ABdhPJwl57CLgsV+QJPk+E+X0JDNWfgQX4rjkztWfVUk/fA9h3VB1O45feCvVfdY7FGib1XUQ0s5t7syGaS9E2R6GoU= X-Received: by 2002:a63:fe03:: with SMTP id p3mr9954576pgh.289.1634315873383; Fri, 15 Oct 2021 09:37:53 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Fri, 15 Oct 2021 09:37:43 -0700 Message-ID: Subject: Re: [FlyRotary] Re: Planetary re-drive? To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="00000000000015793005ce66d193" --00000000000015793005ce66d193 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Bill, The planetary design has many advantages and so far, for rotary aviation applications, it has proven to be far more successful than any other design. Thousands of hours have been successfully flown on the Real World Solutions plenary gear boxes without any problems with the plenary gears as far as I know. All other designs combined have only a small fraction of those hours in rotary applications. Powersports gear box is NOT a planetary design, and they never sold more than a few copies anyway. Dave Leonard On Thu, Oct 14, 2021 at 5:07 PM William Jepson wrjjrs@gmail.com < flyrotary@lancaironline.net> wrote: > Charley, if anyone wants to run a planetary they can. I can only advise > that Powersport tested them and had problems. Mostly backlash caused. Nie= l > may have a good design. Good luck to him. I have no product to sell, and = no > personal time with all the other designs. I=E2=80=99ve had discussions wi= th several > people who have had problems with planetaries original Powersport guys > included. If you have a good solution tell him. > Bill > > On Thu, Oct 14, 2021 at 4:53 PM Charlie England ceengland7@gmail.com < > flyrotary@lancaironline.net> wrote: > >> Bill, I know you have a vested interest in getting the Powersport design >> out there, and I realize that it seems to be a basically an ok (though >> quite pricey) product (with no current production and apparently no >> support). >> >> That does not justify advising avoidance of designs that have a far more >> proven track record than the half-dozen or so Powersport drives that hav= e >> flown. >> >> Charlie >> >> On 10/14/2021 5:54 PM, William Jepson wrjjrs@gmail.com wrote: >> >> Mark, there are a few Powersport units available. They will handle the >> power of a 20b. Not a planetary. Avoid planetary units other than the fu= lly >> custom unit done by Mistral. >> Bill Jepson >> >> On Thu, Oct 14, 2021 at 2:22 PM Marc Wiese cardmarc@charter.net < >> flyrotary@lancaironline.net> wrote: >> >>> Who is making a 13b fit 3:1 planetary now-a-days? That is since I can= =E2=80=99t >>> get a Mistral unit! Need for a 20b. >>> M >>> >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: >>> http://mail.lancaironline.net:81/lists/flyrotary/List.html >>> >> >> >> >> Virus-fre= e. >> www.avast.com >> >> <#m_6875047019216798926_m_-3315602932152255793_DAB4FAD8-2DD7-40BB-A1B8-4= E2AA1F9FDF2> >> > --00000000000015793005ce66d193 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Bill,

The planetary design has many adv= antages and so far, for rotary aviation applications, it has proven to be f= ar more successful than any other design.=C2=A0 Thousands of hours have bee= n successfully flown on the Real World Solutions plenary gear boxes without= any problems with the plenary gears as far as I know.=C2=A0 All other desi= gns combined have only a small fraction of those hours in rotary applicatio= ns.

Powersports gear box is NOT a planetary design= , and they never sold more than a few copies anyway.=C2=A0=C2=A0
=
Dave Leonard

On Thu, Oct 14, 2021 at 5:07 PM William Je= pson wrjjrs@gmail.com <flyrotary@lancaironline.net>= wrote:
Charley, if anyone wants to run a planetary they can. I can only = advise that Powersport tested them and had problems. Mostly backlash caused= . Niel may have a good design. Good luck to him. I have no product to sell,= and no personal time with all the other designs. I=E2=80=99ve had discussi= ons with several people who have had problems with planetaries original Pow= ersport guys included. If you have a good solution tell him.
Bill

On Thu, Oct 14, 2021 at 4:53 PM Charlie England ceengland7@gmail.com= <flyro= tary@lancaironline.net> wrote:
=20 =20 =20
Bill, I know you have a vested interest in getting the Powersport design out there, and=C2=A0 I realize that = it seems to be a basically an ok (though quite pricey) product (with no current production and apparently no support).

That does not justify advising avoidance of designs that have a far more proven track record than the half-dozen or so Powersport drives that have flown.

Charlie

On 10/14/2021 5:54 PM, William Jepson wrjjrs@gmail.com wrote:
=20
Mark, there are a few Powersport units available. They will handle the power of a 20b. Not a planetary. Avoid planetary units other than the fully custom unit done by Mistral.
Bill Jepson=C2=A0

On Thu, Oct 14, 2021 at 2:2= 2 PM Marc Wiese cardmarc@charter.net <flyrotary@lancaironline.net> wrote:
Who is making a 13b fit 3:1 planetary now-a-days? That is since I can=E2=80=99t get a Mistral unit! Need for a 20b.
M

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