X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) From: "Kelly Troyer keltro@gmail.com" Received: from mail-lf1-f53.google.com ([209.85.167.53] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 1315963 for flyrotary@lancaironline.net; Tue, 16 Mar 2021 10:48:11 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.167.53; envelope-from=keltro@gmail.com Received: by mail-lf1-f53.google.com with SMTP id n16so62912501lfb.4 for ; Tue, 16 Mar 2021 07:48:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=FZng2Wcwb589yX9uNnBZ4mCac6fA1oLjhO3w8w3M+XU=; b=YzIpLJYt+43gCBJf6AT7qlnVIHdCTv+U1FBJP2LhRuXis/4bHmNT9rMzAZojF/RG8k UeSTO2wO5ibrz2Ta9i6vWQ7CI/751sbmrupXhULI2FKAhk0oFLRrLyOvlNEE8fArcUfx JMnDr0nNmfAv0u8iGh/mt4HTbhK6Q4sj9tJERTUbzVMgUDBEeRzFRlAQ0AABLNdK1Oxb z9lmViB2yMdTEYdkCsqUsu/xYrmzzJpwG5c0xhgM6kH+KVwFbrymV5U2ZAMC7tMLeoIi NQMzVuHcGmLdBZ8ikbDEqbKBrJVuX7CqPPXYNpCstJLGEzEvJnDsa4fYWWYUn7RHL6nR nBFw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=FZng2Wcwb589yX9uNnBZ4mCac6fA1oLjhO3w8w3M+XU=; b=kG9VscYdg/77RZtl6x+wJT7xb3MISouYF3xMf9Sn2VQKBkDYk5thz/NvUxU34/Sp7v FSejTfc/Nb8drsuWd1/8ax1Kc5zchwoCOKl/XX8VTLdzDh+ku5vpzgwKprWTvgjPRrFs jlkgml21kRLihW5aCvJWsLZj+0aF92fN4nk9WioTTXJ25xlYizPXFE2t2ihlW/CNqObl fD7ePXKJZxioJ/JqQnjIYrJ6R4wg6Yr8C0Ro6MO1+pkFZTp0ELFxq4mPL/Iep5wKuF70 2H1TMEslAqQ+oCgtmER9UQ2l31XMmIu5m8KqJI6DpC9wfXnN+xw4/4W7cHTlED47ngRf xbtA== X-Gm-Message-State: AOAM53150Ba/KRI48lUsxgjlMNPnWnA6/awgbvxEVUHloJRvDF3prrEz xZPfjlW1xi5EQKG+giCsEVyVQI1mwZ+vd/6gnR1Q8/9W X-Google-Smtp-Source: ABdhPJzN53oofCAgUpAHBUEWo71d8KHpxpZ163v5yxNvIH/Knq8736KXXovg05wVfj/cDrh7AaVLWcKLnILGSqxRBd8= X-Received: by 2002:a05:6512:36c9:: with SMTP id e9mr11042520lfs.556.1615906072632; Tue, 16 Mar 2021 07:47:52 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Tue, 16 Mar 2021 09:44:43 -0500 Message-ID: Subject: Re: [FlyRotary] Re: MISTRAL To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="0000000000007321a005bda87345" --0000000000007321a005bda87345 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Steve, Bear with me but as soon as practicable I will do my best to measure the intake length from engine face to face of the throttle body (plus ID of throttle body)............Yes the "Mistral" engines are side intake ports............I believe (from memory) that they rated HP at 6500 rpm...........Still waiting on all the "Mistral" documentation from the seller............ Best, Kelly Troyer On Tue, Mar 16, 2021 at 5:51 AM Stephen Izett stephen.izett@gmail.com < flyrotary@lancaironline.net> wrote: > Hi Kelly > Sounds really cool. Such a shame Mistral didn=E2=80=99t make it. > I thought their engines were side port. I=E2=80=99d love to know the leng= th of the > inlet from the engine face to the throttle body and the rpm that they rat= e > the 200hp. > > Cheers > > Steve Izett > Glasair Super IIRG Renesis 4 port RD1C > > > > On 16 Mar 2021, at 9:59 am, Kelly Troyer keltro@gmail.com < > flyrotary@lancaironline.net> wrote: > > > > Lee, > > I ask because I recently became the proud owner of the final > iteration (Designed to be certified) "Mistral G200-C1B" 200hp > > Rotary engine and I am just curious as to what apex seals they used in > them........Since "Mistral" seems to be out of business I > > do not know where to get information (I have heard that the Chinese > bought them out)..............I do not need apex seals as the > > engine only has about 10 flying hours on it.............. > > > > Thanks, > > Kelly Troyer > > > > On Mon, Mar 15, 2021 at 6:01 PM lehanover lehanover@aol.com < > flyrotary@lancaironline.net> wrote: > > I did not. I was asked to travel about inspecting installations prior t= o > first flight, or to assist with installations. > > But if asked I would have suggested Ceramic seals. > > > > We raced with Carbon seals and later, Ceramic seals. Carbons wear too > fast for aircraft use but are soft and leave the housing chrome looking > better than new as the years go by. No detectable wear at all. Near perfe= ct > sealing. No skipping, no need for an extra spring. > > Same for Ceramics. Light weight. No wear. Very expensive. But if you ca= n > use the same housings for 4 or 5 years, then not so bad. The duty cycle = of > an aircraft engine is much tougher than that of a racer or street engine. > > All early engines Had the wide carbon seals. We machined them down to > fit the later rotors. So early housings would often run well over 100,000 > miles. The iron seals with a chrome face have you running a chrome face > against a chrome housing. Bad Mojo. With Premixing and or oil injection n= ot > so bad. Hard starting suggests > > worn apex seals. Both ceramic and carbon seals need to be sized to the > housing width. > > Any question, any time. > > Lynn E. Hanover > > > > message dated 3/14/2021 11:29:17 PM Eastern Standard Time, > flyrotary@lancaironline.net writes: > > > > Lee Hanover, > > I seem to remember that you had some interaction back in the day > with "MISTRAL" when they were developing their > > Rotary engines .........If so did you ever hear what tip seals they use= d > in their engines ? (Iron , Ceramic , Etc)........... > > > > Thanks, > > -- > > Kelly Troyer > > --0000000000007321a005bda87345 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Steve,
=C2=A0 Bear with me but as soo= n=C2=A0as practicable=C2=A0I will do my best to measure the intake length f= rom engine face to face of the=C2=A0
throttle body (plus ID of th= rottle body)............Yes the "Mistral" engines are side intake= ports............I believe (from memory)
that they rated=C2=A0HP= at 6500 rpm...........Still waiting on all the "Mistral" documen= tation from the seller............

Best,
Kelly Troyer

On Tue, Mar 16, 2021 at 5:51 AM Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wr= ote:
Hi Kelly Sounds really cool. Such a shame Mistral didn=E2=80=99t make it.
I thought their engines were side port. I=E2=80=99d love to know the length= of the inlet from the engine face to the throttle body and the rpm that th= ey rate the 200hp.

Cheers

Steve Izett
Glasair Super IIRG Renesis 4 port RD1C


> On 16 Mar 2021, at 9:59 am, Kelly Troyer keltro@gmail.com <flyrotary@lancaironline.net>= wrote:
>
> Lee,
>=C2=A0 =C2=A0 =C2=A0 =C2=A0I ask because I recently became the proud ow= ner of the final iteration (Designed to be certified)=C2=A0 "Mistral G= 200-C1B" 200hp
> Rotary engine=C2=A0 and I am just curious as to what apex seals they u= sed in them........Since "Mistral" seems to be out of business I<= br> > do not know where to get information (I have heard that the Chinese bo= ught them out)..............I do not need apex seals as the
> engine only has about 10 flying hours on it..............
>
> Thanks,
> Kelly Troyer
>
> On Mon, Mar 15, 2021 at 6:01 PM lehanover lehanover@aol.com <flyrotary@lancaironline.net&= gt; wrote:
> I did not. I was asked to travel about inspecting installations prior = to first flight, or to assist with installations.
> But=C2=A0 if asked I would have suggested Ceramic=C2=A0 seals.
>=C2=A0
> We raced with Carbon seals and later, Ceramic seals. Carbons wear too = fast for aircraft use but are soft and leave the housing chrome looking bet= ter than new as the years go by. No detectable wear at all. Near perfect se= aling.=C2=A0 No skipping, no need for an extra spring.
> Same for Ceramics. Light weight. No wear. Very expensive. But if you c= an use the same housings for 4 or 5 years, then not so bad.=C2=A0 The duty = cycle of an aircraft engine is much tougher than that of a racer or street = engine.=C2=A0
> All early engines Had the wide carbon seals. We machined them down to = fit the later rotors. So early housings would often run well over 100,000 m= iles.=C2=A0 The iron seals with a chrome face have you running a chrome fac= e against a chrome housing. Bad Mojo. With Premixing and or oil injection n= ot so bad. Hard starting suggests
> worn apex seals.=C2=A0 Both ceramic and carbon seals need to be sized = to the housing width.
> Any question, any time.
> Lynn E. Hanover
>=C2=A0
>=C2=A0 message dated 3/14/2021 11:29:17 PM Eastern Standard Time, flyrotary@lanca= ironline.net writes:
>=C2=A0
> Lee Hanover,
>=C2=A0 =C2=A0 =C2=A0I seem to remember that you had some interaction ba= ck in the day with "MISTRAL" when they were developing their
> Rotary engines .........If so did you ever hear what tip seals they us= ed in their engines ? (Iron , Ceramic , Etc)...........
>=C2=A0
> Thanks,
> --
> Kelly Troyer

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