Mailing List lml@lancaironline.net Message #56700
From: Bill Kennedy <bill_kennedy_3@hotmail.com>
Sender: <marv@lancaironline.net>
Subject: RE: [LML] Re: Retrofitting a 360
Date: Mon, 15 Nov 2010 07:30:42 -0500
To: <lml@lancaironline.net>
I agree with Bill. I've had great service with my standard system and the low cost tires (and, for that matter, the standard brake system). I have learned to keep plenty of air pressure in the tires to avoid tube pinch.

Bill Kennedy
N42BK 615 hours


To: lml@lancaironline.net
Date: Fri, 12 Nov 2010 16:44:42 -0500
From: n5zq@verizon.net
Subject: [LML] Re: Retrofitting a 360

Danny,
 
I mostly agree with what Rob says about the mods that you asked about.
*Canopy will be exactly has he describes.
*Long engine mount is easy IF (and this is a big IF) you can find a long engine mount.
*Outback gear? Why? We’ve been flying our 320 off grass, dirt and all kinds of “unimproved” strips for a lotta years. We’ve also flown it a lot at rather heavy weights. Never had any problem with the standard gear. What do you hope to do with the outback gear that you can’t do with the standard? My advice is to keep the standard gear but install Ong’s deboingers and Grove wheels and brakes. That’ll give you a pretty robust undercarrage and at around $15 bucks a piece you can buy a lot of Chin tires for the price of a Goodyear. (I’ve never had a blowout, a flat or any other problem with the Chins).
 
Bill Harrelson
N5ZQ 320 1,850 hrs
N6ZQ  IV under construction
 
 
 
 
 
Sent: Friday, November 12, 2010 7:31 AM
Subject: [LML] Retrofitting a 360
 
Danny -
 
Some thoguhts from a 360 builder (but not yet flying).
 
1)  Canopy -- If you are considering retrofitting a forward hinged canopy to a finished 360 with a parallelogram canopy, here are some things to consider.  The forward hinge canopy attaches to brackets which go into "pockets" in the aft face of the header tank.  If the back face of the header tank is flat, you will need to "make" pockets by hacking up the header tank.  That would be a real pain, in my opinion, but anything can be done.  There are instructions for doing this with the forward hinge canopy hardware.  My 360 came with parallelogram canopy hardware but a "pocketed" header tank, and I subsequently purchased the forward hinge hardware.  So you might luck out there and find a parallelogram canopy installation onto a pocketed tank.  If the plane does not have a header tank at all you've got a bigger problem -- no place to attach the brackets for the hinges.  Regardless of header tank configuration, you will have to reinforce the front of the canopy with 80 feet of unidirectional carbon fiber.  You may also choose to trim the canopy sides to make them thinner and gain about an inch of shoulder room.  This particular modification work should not be too hard, but you'll trash the interior paint on the canopy.  Not a biggie, I think.  You'll also need to cut a slot in the back rest for the handle and affix nylon pivot blocks to the inside walls just behind the seat.  Plus cut slots into the rollover structure for the latches and make a hole in the side of the plane for the handle.  Also cut holes in your glareshield for the hinges.  All is doable but I'm not sure I would bother.  Guesses?  $1000 for materials and parts and 250 hours labor.  Plus paint.  Just a guess.
 
2)  Long engine mount -- This will probably make maintenance a lot easier.  Will also move your CG forward and make it fly better.  I think all you'll need to do is unbolt the mount, make sure the new mount fits in the old holes, and move the engine and its accessories over.  Then you'll need to extend the cowling to fill the gap.  As fiberglass work goes that's not too bad.  You will have to re-do the cowling fasteners, of course.  And you might need longer hoses in a couple of places, but that's just writing a check.  Guesses?  $500 for a new mount, $700 for materials including new cowl fastener parts and new hoses, a weekend for the changeover and 75 hours labor for extending the canopy and redoing the cowl fasteners.  Plus paint.
 
3)  Landing gear -- I have long considered the Lancair landing gear to be the weak link in the airplane.  Tinkertoy struts supporting go-kart wheels and bicycle brakes.  Okay, so maybe that's a little harsh but if you compare the Lancair gear to any certified airplane of the same or similar weight and you see Twiggy supporting the Lancair and (fil in your favorite female WWE start here) supporting the spam can. (wait, where was I?  I lost my train of thoguth for a moment)  Oh, yes, and it's not just the gear -- the flaps are totally different as well.  This is a huge modification which I would stay away from.  But again, I know nothing about the outback gear. Guesses?  Megabucks for the parts and a year or two for the labor.  (Okay, maybe I exaggerate a little.)
 
Hope this helps.
 
- Rob Wolf
Tucson AZ
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