This is a preliminary motor mount and one of several
possible cooling arrangements for a Lancair ES. Since
the Lancair ES has a fixed nose gear the under the
engine location for the rad may not be practical.
This is turbo so I will do a P-port version next.
Paul Lamar ...No rotor no motor.
Paul,
From the tilt canopy, it appears that those pictures are of the
Lancair
Legacy. The mount, especially the nose gear location, looks very
similar to the ES mount though. My ES came with a bed mount which has
an extra mounting point in the lower center. I think you may need to
move the turbo as I don't think there is enough room where it is shown.
Mark S.
Thanks Mark. I assumed it was an ES because of the nose gear.
Here are a few more pictures in addition to your first one.
Paul Lamar ...No rotor no motor.
Paul, The Legacy has an attach hard point on the firewall for the center
point of the Continental bed mount as well. It seems to me that it is a
little higher on the firewall than this pic of the ES.
Bill Bradburry
I am still awaiting the dimensions. These 3D's are just guesses at this
point. Everything will have to be adjusted. Does anybody have these
dimensions? I also need the position of the thrust line and
the length of the cowl from firewall to prop flange.
Paul Lamar ...No rotor no motor.
Paul,
I'll try to get you some dimensions for you this weekend. One thing
that I noticed in your drawings is that the firewall is vertical. The
ES firewall is angled backwards about 10* from bottom to top. Look
closely at the pictures I sent and you can see it. Also, the ES uses
the same mount and strut as the IV-P, except the ES has fixed gear and
therefore uses a strut brace whereas the IV-P uses a retract mechanism.
Another gotcha was discovering that the M/T electric prop requires a
3.5" offset due to the design. In other words, the prop flange should
not be flush with the front of the cowl. This required me to shift the
engine aft by 3.5" from where I initially had it located. Or, I could
have extended the cowl by 3.5", but I chose the first option as the ES
is said to be a bit nose-heavy anyway. If I need to adjust the CG, I
can always move the batteries forward.
Mark S.
Thanks Mark. It is indeed a Legacy however. Is the firewall still
tilted back 10 degrees?
Paul Lamar ...No rotor no motor.
Paul,
While I'm no Legacy expert, I don't think the firewall is tilted as it
is in the ES.
Mark S.
I also found this in the Legacy manual pdf.
Makes good structural sense but pretty much rules out putting the
rad under the engine I think. I'll need the location dimensions
of this #5 point as well.
Paul Lamar ...No rotor no motor.
The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site.
http://www.rotaryeng.net
Copyright 1998-2005 All world wide rights reserved.
