cncdoc Posted December 18, 2003 Share Posted December 18, 2003 I feel like I should look around as a person does when he enters a new house... Nice. I hope everyone remembers to use the new address when referring to old posts and articles, because they certainly don't work now... But that's not what I came to say.. I am now planted squarely in the rotary-engine-for-my-Cozy camp. I remembered my older brother had built up a few RX-7s and had amassed a good deal of usable info and technical goodies over the years and has the procedures for building up engines. So I got me a good core and I will start the rebuild when I get back from Ohio (2nd week in Jan) while Im waiting for stuff from AC Spruce.. I plan to use a moderate street porting, EFI and turbo (for noise reduction mainly and high alt boost) fabricate my own intake and exhaust manifolds and the rest of the stuff. I want to use Tracey's newest PSRU (C model) but I will have to wait for that anyway. I am going to collect as much data on intercoolers, engine coolant and oil cooling as possible. I may try to get a big Vortec cooler and pump cool air into the system and use cowl flaps for take off, but that's for now.. Any thoughts? I am pretty excited about going rotary, I turned down a very good deal on an I0-470 when I got the weight specs. I guess it would have not been so great on an aft-cg sensitive airframe. anyway, even so it was pretty anti-climactic after hearing about Burt's latest adventure! back to work.... Quote Back to building... #618 Cozy MK IV My Cozy web pages, courtesy: Rick Maddy... WN9G Link to comment Share on other sites More sharing options...
Jim Sower Posted December 18, 2003 Share Posted December 18, 2003 <... pretty anti-climactic after hearing about Burt's latest adventure ...> What was his latest adventure? I know he had another test on his "space probe" but am not sure what that has to do with aft CG Cozys Quote ...Destiny's Plaything... Link to comment Share on other sites More sharing options...
cncdoc Posted December 18, 2003 Author Share Posted December 18, 2003 Yeah, you guessed it.. The test of the space probe deal. I'll never see the altitude it went and Im not sure I want to, but I think it's pretty cool the same guy that designed the airplane Im building did all that and more. It was more or less a blurb at the end of my exposition. But the aft cg sensitive part was referring to the canard design in general. To put a 430 lb+ engine in the airframe would load up the gross and cause me to have to put counterweights etc in the front. I would prefer it to be "under powered" and lighter than optimally designed with the most powerful a/c engine available in the proper weight class, than boasting a pudgy 250 HP and 14+ gph on a much heavier engine. But that's just me, the only thing I've flown with a rear engine is a Skymaster, and it always had the engine in front going while I was flying it (I like it that way) So, in any case this will be a new experience for me. I just don't want to push the envelope my first time out... Does that explain anything??? Back to work... again Quote Back to building... #618 Cozy MK IV My Cozy web pages, courtesy: Rick Maddy... WN9G Link to comment Share on other sites More sharing options...
John Slade Posted December 18, 2003 Share Posted December 18, 2003 Welcome to the Wanklers club! Sounds like you have a plan going. One thing - using a turbo you wont need an exhaust manifold beyond the small stock one that connects the turbo to the ports. From there it's a straight shot out the back into the prop Feel to "pop over" sometime and pick my brains. Slim pickins, but I'll buy the beer. Quote I can be reached on the "other" forum http://canardaviationforum.dmt.net Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.