X-Virus-Scanned: clean according to Sophos on Logan.com From: "Todd Bartrim" Received: from mail-qk0-f170.google.com ([209.85.220.170] verified) by logan.com (CommuniGate Pro SMTP 6.1.14) with ESMTPS id 9340256 for flyrotary@lancaironline.net; Thu, 05 Jan 2017 01:25:26 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.220.170; envelope-from=bartrim@gmail.com Received: by mail-qk0-f170.google.com with SMTP id s140so10932390qke.0 for ; Wed, 04 Jan 2017 22:25:26 -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=14IFH0MhznQfv6PghxMD5jf84OA9bOkcNzBR86yC6/4=; b=nsDVzx2z3UV8Vwejxh61GlnaqOsnHzW7Ne65DKFASfNevhamREz4CxFtGkTxVC3b9+ AeLqQgUoDnXaz9x/eRdHyw2Tz8KGsAq/D/9uN0fcFd++NcK2/nEuOpQ8S+8WsXz2JERM bMfJe/Q2x8XIj9cwkbxvpjjU4helUUVx7WvpVJNKni2JaNaxAmCZYmF4zZL3YGof8W4U GSmUjwG17dRsrHy3g9KPjCGp9e+6Aa2aKqgKyJ9SiT8V4wGPS12zSJu0nc11elkhHyAO Gqmr5TAFVKEZsDA6wCPcwHTDfAkfIflh6rFBpcOeNsDaIlvRpaATX9IU+sebpFyF3QXP VZIw== 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=14IFH0MhznQfv6PghxMD5jf84OA9bOkcNzBR86yC6/4=; b=nfr9+jbSqbNTfj1EUtyoF1cm8FmXRs9/i+PVPH988MdwLbiM9qquzOxUl61sxFSFBd hxevTQy0L4Xmmbq/wTb05IOnlHzNjAYGGexjAUc0W4v10V79lUP9xozCqztnXFI79W9z +HgsSnENApgT4PUyGc+YkEao22zdwMH4qXFRspJ8iJ0EOtk95MzPGOdFKo4RXA+kIPZ9 YX3i9OJEFkVfPwJgcfe8kkJu1XsJ2KoHb2gygC6huOBsIZ5CvtNQKO93OBGwO79z4koX 6x9fxlEIs+/P/cN6FvMBstATCKpf+o4zgCVtsOwQBAjqbO409IZ0c0HQde8oPDVIeZDd 2fhQ== X-Gm-Message-State: AIkVDXJQf3BWsI60SZGwaYRTQ/TD8yH4qay5cKLC29VzNnNb2vKTQ/AHEM4nFUvHTKw2xo5V/keLW3mlsiL/6g== X-Received: by 10.55.43.74 with SMTP id r71mr66501248qkh.306.1483597508839; Wed, 04 Jan 2017 22:25:08 -0800 (PST) MIME-Version: 1.0 Received: by 10.12.156.2 with HTTP; Wed, 4 Jan 2017 22:25:08 -0800 (PST) In-Reply-To: References: Date: Wed, 4 Jan 2017 22:25:08 -0800 Message-ID: Subject: Re: [FlyRotary] Re: Not rotary....but still interesting To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=001a114768b2810e06054552f6ab --001a114768b2810e06054552f6ab Content-Type: text/plain; charset=UTF-8 I'm not Ernest (obviously), but many things different on this rebuild which I'll detail later but the one thing I'd like to mention now that made so much difference in the design is in the tool category. When I built my dream shop over the last bunch of years I included an overhead 2 axis crane/hoist on rails that are part of the shop structure. This has proved invaluable over the years almost daily but when I finally got back to the plane the first thing I wanted to do was apply a fireproof blanket to the engine side of the firewall in an unbroken sheet. In order to do this I used the hoist to suspend the engine and mount together as one while I disconnected the mount from the firewall. Unsurprisingly I could effortlessly move it once everything was disconnected. This led me to the conclusion that so much of my original installation was unsatisfactory as it was all a compromise with fw penetration and accessory location governed by the ability to access it with the engine and mount hanging on the firewall. Back then I had to get a couple of beer-drinking buddies over to lift the engine on/off. So I took the opportunity to do a redesign by patching every penetration point and sealing the fw with a fireproof blanket to give me clean slate (see picture). There is a small weight penalty for this but worth it as this time it was so easy to put everything exactly where I want it as I could effortlessly move the engine with mount and accessories with one hand to place and fit items. Now I realize this isn't feasible for most to add an overhead hoist to their shop, but a simple engine hoist would achieve the same result even if it does require more effort to move into and out of place. This may seem obvious now, but at the time it was something I just never considered. That is the one thing different that has allowed me to do many other things different. Oh and I can already hear all the newer list members asking WTH is that big hole at the bottom of the fw? An original half baked idea I had all those years ago for an internal muffler housing to keep the square homemade SpinTech muffler from being an air drag. I'll post better detailed pics later but it did work pretty good but I probably wouldn't do that again. Too much work for little gain. Especially now that I'm using a much less draggy AeroExhaust. Todd RV9 13Bturbo Todd Bartrim On Wed, Jan 4, 2017 at 6:54 PM, GEORGE PUTNAM wrote: > Great to see your posts on the forum, Ernest. Curious. What would you do > differently today if you were building the rotary for the Dyke?! > Best Regards, > George Putnam > > On Jan 3, 2017, at 5:55 PM, Ernest Christley > wrote: > > > > Well, that was inspirational. I have the descent rate. I have the > forward speed. I can easily calculate the best glide and climb angles from > that. Thanks, James. > > > > > > > > --001a114768b2810e06054552f6ab Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I'm not Er= nest (obviously), but many things different on this rebuild which I'll = detail later but the one thing I'd like to mention now that made so muc= h difference in the design is in the tool category.=C2=A0
=C2=A0 When I = built my dream shop over the last bunch of years I included an overhead 2 a= xis crane/hoist on rails that are part of the shop structure. This has prov= ed invaluable over the years almost daily but when I finally got back to th= e plane the first thing I wanted to do was apply a fireproof blanket to the= engine side of the firewall in an unbroken sheet. In order to do this I us= ed the hoist to suspend the engine and mount together as one while I discon= nected the mount from the firewall. Unsurprisingly I could effortlessly mov= e it once everything was disconnected. This led me to the conclusion that s= o much of my original installation was unsatisfactory as it was all a compr= omise with fw penetration and accessory location governed by the ability to= access it with the engine and mount hanging on the firewall. Back then I h= ad to get a couple of beer-drinking buddies over to lift the engine on/off.= So I took the opportunity to do a redesign by patching every penetration p= oint and sealing the fw with a fireproof blanket=C2=A0 to give me clean sla= te (see picture). There is a small weight penalty for this but worth it as = this time it was so easy to put everything exactly where I want it as I cou= ld effortlessly move the engine with mount and accessories with one hand to= place and fit items.
= =C2=A0 Now I realize this isn't feasible for most to add an overhead ho= ist to their shop, but a simple engine hoist would achieve the same result = even if it does require more effort to move into and out of place. This may= seem obvious now, but at the time it was something I just never considered= .=C2=A0
=C2=A0 =C2=A0That = is the one thing different that has allowed me to do many other things diff= erent.
=C2=A0
=C2=A0=C2=A0
Oh and I can already hear all the newer list members asking WTH is that= big hole at the bottom of the fw? An original half baked idea I had all th= ose years ago for an internal muffler housing to keep the square homemade S= pinTech muffler from being an air drag. I'll post better detailed pics = later but it did work pretty good but I probably wouldn't do that again= . Too much work for little gain. Especially now that I'm using a much l= ess draggy AeroExhaust.

Todd=C2=A0

RV9 13Bturbo

Todd Bartrim
<= /div>
On Wed, Jan 4, 2017 at 6:54 PM, GEORGE PUTNA= M <flyrotary@lancaironline.net> wrote:
Great to see you= r posts on the forum, Ernest. Curious. What would you do differently today = if you were building the rotary for the Dyke?!
Best Regards,
= George Putnam
On Ja= n 3, 2017, at 5:55 PM, Ernest Christley <flyrotary@lancaironline.net> wrote= :



Well, that was inspirational.=C2=A0 I have= the descent rate.=C2=A0 I have the forward speed.=C2=A0 I can easily calcu= late the best glide and climb angles from that.=C2=A0 Thanks, James.





<= /div>

<= /blockquote>


--001a114768b2810e06054552f6ab--