Jerry Hey wrote:
Simple, you buy a Schertz beam, static load tested and proven, side
clips welded, mounting holes drilled, ready to bolt up, complete with
Barrys, from me for $200.00. The rest is just six or eight tubes
that
you can fit up yourself. If you are not a good welder, just tack
it
together and haul it down to the local TIG guy. This is what I
recommend. Since you are building in place, there will be no
problem
with fit up. If in doubt, call me and I will talk you through the
process.
If you don't care about saving the $450.00, you can send me $650.00,
a template of your attach points at the firewall and you will get
an
engine mount in return. $650 is about half what an engine mount
cost
last year,
Either way you will save money and weight. This engine mount is so
clean. No more clutter of tubes running all over the place, always
in
the way.
The rear strut installation is not included. There will be a
drawing
provided showing a typical installation on a sheet metal firewall
which
will need to be stiffened. It is not a big deal. If you have a
plywood firewall it will be even easier.
No more excuses, time to hang that rotary. Jerry
Jerry, I have been thinking about that rear strut mounting. If you
build
a simple 4130 .040 angle straddle mount bracket and rivet it to the
bottom
of the firewall and the bottom skin of the belly pan where the lower
skin
connects that will be plenty stiff enough. Weld some washers around
the
1/2' holes where the bolt goes through.
Basically is will look just like what Bill Schertz did. I'll do a 3D
in
an hour or so.
Paul Lamar
OK Jerry here it is for a sheet metal firewall. Something simple. .035
or .040 4130.
Make it five or six inches high and three or four inches along the
bottom.
Four or five inches wide. Rivet it to the sheet metal with a dozen
rivets.
This is a right angle version but some fire walls are not at an exact
right
angle with the belly pan so change the angle to fit. The RV4 is such
and airplane.
Paul Lamar
Thanks, now the picture is complete. Next month I will build a new
engine mount for the Tailwind and at the time I will replace the sheet
metal firewall which shows the effects of two years of experimentation
(must be 15 holes in in it). I will use this method for the rear
strut. This has all come together perfectly. Jerry
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