X-Virus-Scanned: clean according to Sophos on Logan.com From: "Chad Peterson" Received: from mail-qk0-f182.google.com ([209.85.220.182] verified) by logan.com (CommuniGate Pro SMTP 6.2c1) with ESMTPS id 9512439 for flyrotary@lancaironline.net; Tue, 28 Feb 2017 08:46:11 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.220.182; envelope-from=capeterson7x@gmail.com Received: by mail-qk0-f182.google.com with SMTP id n127so18629840qkf.0 for ; Tue, 28 Feb 2017 05:46:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=fADXotYFKPsxN8ixSFuUtjjuy3lBhrXFc9FvnxXP+0A=; b=rRZIzAA7P4UEpX6n7nRRnh3H8kNSGQscvjNlw0Cu+5CXcs6q2s9WCbm3WEzuLz+UTX JHVYVfeGTcGcn44TuhI1zrYa0uKn3G092YYoAKbugW4kRnrmX+hdJrUSnrRJerOjoLCs QFzgd3hy9VvL1CcK/Cfix1Ji14at+OwldcqdJWD/tdK2aTlKXGJRd1DN2EN5l8jURbab 4lOwVQCaxLWZhVJ21gu6Sz9byRyaTjBHWiPeF9xIaFQUT8VDPr6Taf4KxjW1cgK2UhTE +7ghcVQZDGDzNrgBt9Juo0GUSbKqimIygQpQ/8xq4CJDlsk2YznmfylrdU0cppyZCj0B ul4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=fADXotYFKPsxN8ixSFuUtjjuy3lBhrXFc9FvnxXP+0A=; b=NqYYuoOUv1RST79FWQKA0CxLYkLy9xMIm2AbninJ8XYmxN+jaTD8uA9wIlbAvyH2AN REjoVoZcyFnA0Bt2Bc0HsKpoI7aMoMvvx0iSSqUXzPy8VVkxiOO4hnYK3sK7ibc+nojY xaE6AZD52g/j/YKr1aqoM0wKW2ByuliN8SFf7vAlg61lzx/Bva/Vx4bckE+uc8GH7diT byg0DM/ZPqNsMh2wbroCiFkhOZ/38xWlK7D8NbSlthXqxX4GVKIg+SQRULOiIhlPk8Ou e4c9/8zDqX4kduMPu36WdbGis6/9BuXR2IZAZ440cztXasAi6nYp8O0wsyrlaG4rIG41 LgNw== X-Gm-Message-State: AMke39mBMeKGEXfwGESCL/Y02+WMVL+Fb2pyNJmfIf8KmZu+qqbjTInJMCGkAJqtTcus2p0mPJC7uCw5OAQgJQ== X-Received: by 10.200.36.43 with SMTP id c40mr2772142qtc.161.1488289552832; Tue, 28 Feb 2017 05:45:52 -0800 (PST) MIME-Version: 1.0 Received: by 10.12.145.157 with HTTP; Tue, 28 Feb 2017 05:45:52 -0800 (PST) Received: by 10.12.145.157 with HTTP; Tue, 28 Feb 2017 05:45:52 -0800 (PST) In-Reply-To: References: Date: Tue, 28 Feb 2017 07:45:52 -0600 Message-ID: Subject: Re: [FlyRotary] Re: Boost Port Carb Efficiency To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=001a114338f61ea1020549976a41 --001a114338f61ea1020549976a41 Content-Type: text/plain; charset=UTF-8 A P port tuned for aircraft use typically turns between 6,000-7,000rpm making 225-275 hp. Plane builders looking for 100hp aren't looking at the 13B or Renesis (maybe a single rotor though). In that power range, the 13B or Renesis does typically come in lighter than the opposed air cooled 4 cylinders, although cooling and ignition are more complicated. On Feb 25, 2017 9:19 AM, "Charlie England" wrote: > > > On Fri, Feb 24, 2017 at 6:17 PM, durabol35@yahoo.com < > flyrotary@lancaironline.net> wrote: > >> I'm sorry I don't know why the formatting of my email was wonky. >> >> I wasn't planning a tuned intake mainly because I don't need a lot of >> power >> (100hp for 1200lbs gross). I'm planning to have a red-line around >> 4000rpm/120hp >> with around 3300rpm/100hp static. One of the reasons for the low rpm is >> to keep >> the motorcycle chains happier. >> >> Okay I now understand it is better to have a backup controller as opposed >> to two >> different controllers for each rotor. I suppose it would be pretty >> unlikely that >> one rotor would ever need to be shut down and if I have multiple >> throttles I >> could just throttle it back. >> >> Okay I'll go with peripheral porting and not do some experimenting and >> "reinvent" >> the wheel. :) >> >> Brock >> >> Couple of thoughts. P-porting, while not difficult for a machinist, might > not be the best 1st choice for the inexperienced since it's a major mod to > the engine (same for trying to set up a turbo). > Second, if only 100 HP is expected and the engine will never run over 4000 > rpm, a P-port could actually *hurt* output. > > Oh, and one more thought. a 13B or Renesis really is too heavy for a 100 > HP engine, unless you just don't care about managing weight. Most a/c > designed for 100 HP are not designed for 300+ lbs of engine installation. > > Hate to sound like a downer, but.... > > Charlie > --001a114338f61ea1020549976a41 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

A P port tuned for aircraft use typically turns between 6,00= 0-7,000rpm making 225-275 hp. Plane builders looking for 100hp aren't l= ooking at the 13B or Renesis (maybe a single rotor though). In that power r= ange, the 13B or Renesis does typically come in lighter than the opposed ai= r cooled 4 cylinders, although cooling and ignition are more complicated.

On Feb 25, 2017 9:19 AM, "Charlie England&q= uot; <flyrotary@lancairon= line.net> wrote:


On Fri, Feb 24, 2017 at 6:17 PM, durabol35@yahoo.com <flyrotary@lancai= ronline.net> wrote:
I&= #39;m sorry I don't know why the formatting of my email was wonky.

I wasn't planning a tuned in= take mainly because I don't need a lot of power
=C2=A0(100hp for 1200lbs gross). I'm planning to have a red-line ar= ound 4000rpm/120hp
=C2=A0with around 3300rpm/100hp static. One of = the reasons for the low rpm is to keep
=C2=A0the motorcycle chains= happier.

Okay I now underst= and it is better to have a backup controller as opposed to two
=C2= =A0different controllers for each rotor. I suppose it would be pretty unlik= ely that
=C2=A0one rotor would ever need to be shut down and if I = have multiple throttles I
=C2=A0could just throttle it back.

Okay I'll go with peripheral = porting and not do some experimenting and "reinvent"
=C2= =A0the wheel. :)

Brock

Couple of thought= s. P-porting, while not difficult for a machinist, might not be the best 1s= t choice for the inexperienced since it's a major mod to the engine (sa= me for trying to set up a turbo).
Second, i= f only 100 HP is expected and the engine will never run over 4000 rpm, a P-= port could actually *hurt* output.

Oh, and one more thought. a 13B or Renesis rea= lly is too heavy for a 100 HP engine, unless you just don't care about = managing weight. Most a/c designed for 100 HP are not designed for 300+ lbs= of engine installation.

Hate to sound like a downer, but....

Charlie=C2=A0
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