Paul,
       Origional mount on the glastar sportsman is a 5 hole mount.

     distance between botom two holes  31  1/4 inches
    Distance between two upper holes   36  3/4 inches
    Distance between botom holes and upper holes vertically  21  3/4 inches
    Distance between the top outer holes and top central hole   20  1/2
 inches

 existing distance from firewall and prop flange is   35 inches, but this
 is
 an Eggenfellner subaru 6 cylinder motor and quite heavy I believe. I would
 expect that a rotary would have to be mounted further forward for the C of
 G.

 Thrust line as near as I can see is 3 inches below the upper outside
 holes.

 I am hoping to use the top central mount hole for the back mount on the
 motor.  Currently it does nothing.

 Neil Unger.

 Neil,

 How far above the top firewall hard points is the top center firewall
 hard point? I don't think it is 20.5 inches.

 About the shortest practical firewall to prop flange is 37 inches.
 The CG of the rotary is about 16 inches aft of the prop flange.

 What did the soob weigh? The rotary with gear box, starter, prop,
 alternator, intake muffler etc etc weighs about 300 pounds.

 You can always move the battery to the firewall.

 Paul Lamar



Paul,
             First the measurements.
.        The measurement from the top outer mount hole to the center mount
hole   (20 1/2  inches) is measured diagonally.  The centre line of the top
hole is about 6 inches above the top outer holes center line.  I cannot get
in there to measure accurately, so will have to get the measurements from
Glastar eventually.
   Weight of the "Sube" is officially the same as the 0-360, but By the
time I added all the extras I am positive that I am carrying at least 50 -
60 Lbs more.  I already have both batteries under the seats.
   With a 60 lb pilot and no fuel I am outside my forward C of G, so I
certainly would prefer a lighter engine than I have.  The Glastar was
designed around the 0-360, so  that is the weight to work to.
   At this stage forget the distance to the prop flange, just put the C of
G of the renisis where the C of G of the Lyc is.  If that is not known I can
get it from Glastar.
           Let me know what else you need,
      Neil.


I think what I have here will work. I don't really need the top mount position
as you will be cutting and fitting that tube with a couple of
these rubber rod ends. They can be had from McMaster Carr as well.
We use the 1/2 inch version. If you set it up with left and right
threads you can adjust the down thrust angle for best top speed.

Paul Lamar