If I had known this earlier, I would have
ordered the RD2C-M/T model. ;-)
Mark S.
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of DaveLeonard
Sent: Wednesday, December 15, 2004
11:58 AM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: M/T Prop
Won't Fit PSRU
Mark, wow thats good info. Something
to think about before spending all that $ on an MT - which I have been thinking
about doing. I wish I had a solution for you, but I think you know the
answer is to remove the bushings and drill. Maybe you can get MT to
supply some bushings that are matched to their prop. Let is know what you
figure out.
I have been working to resolve a problem for more than a
month now and thought I would query the group for a possible solution.
If anyone else is running (or planning to run) a 3-blade M/T
electric prop with the RD-2C gearbox, I have discovered a mating problem in
using this prop/gearbox combination for my 20B. The problem is the RD-2C
prop flange comes with 3/8 id x 5/8 od bushings. The M/T prop has a
stepped hole that is ¾” for the first 3/32” and then goes to
5/8”. Tracy
is not comfortable with drilling out the 5/8” bushings and M/T adamantly
advises against using anything less than ½” prop bolts with this
prop. So, I’m at a standstill until I can get this resolved.
The only solution I can see is to press out the existing bushings and
open up the holes to accept ¾” od x ½” id bushings. But that
would require disassembly of the gearbox and some precision machine work, possible
but not my first choice.
Mark S.
Lancair ES – 20B
(with a very pricey lawn ornament)