Doc and Jerry. Here is the prelim design.
The tubes from the lower end of the nose gear socket up to
the upper hard points are the breakthrough feature. This
supports the nose gear socket from rotating clockwise on
a hard drop in landing and still provides plenty of room
for a large oil pan and a radiator and oil cooler mounted
under the engine. The tubes from the upper end of the nose
gear socket provide lateral support for the Schertz beam
and prevent the nose gear socket from rotating counter
clockwise (side view) in the event of a pot hole type load.
The engine has two degrees off set to the right and a 2.85:1
gear box must be used with this off set.
Only half the mount is shown.
Any comments?
----------------------------------
Here is with a nice wide rad and oil cooler combo.
--
Paul Lamar ...No rotor no motor.
Paul,
I think elements of this design might help me with my Sportsman mount/gear
conundrum. As you can see from the attached pictures, the aft attach point
of the gear leg hinges on tabs welded to the cage frame, while the forward
attach point, which appears to bear most of the load, is a shock absorbed
bracket that bolts to tabs welded on to the lower conical mount doughnuts.
As I see it, this bracket would need to be modified to tie into the Schertz
beam, but the frame members would kill any radiator space. To complicate
matters further, there is a top-center cage/engine mount attach bolt ferrul
with no less than 7 cage frame tube members welded to it. None of the
rotary mount designs (except Mistrals with their proprietary engine back
plate) are configured to incorporate this center attach point and I'm
reluctant to omit load distribution to it. Glasair Aviation would provide
zero help to me since they only support a Lycosaurus install - even though I
signed a document assuming all responsibility for anything as the builder of
my airplane.
Anyone ever seen a mount/gear design like this or engineered a work around?
Alex Rose
Sportsman Kit #70323
Its a Maserati bird cage if I ever saw one:) I'll think about it and see
what I can come up with a bit simpler design if possible.
Looks like that bracket above the gear leg with rubber bushings was added as an
after thought to beef up the nose gear.
Unbolt everything up there and take another picture to make it clear exactly
what we should be starting with.
I suspect with a modification to the pivot a bit aft of the bracket we could
achieve the same thing with less fuss.
--
Paul Lamar ...No rotor no motor.
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