The modification
and mounting in a Skyranger is simple and straight forward. Weight: depends on the accessories you hang on, empty
engine = 59kg then carbs, strarter, ignition, exhausts, alternator,
prop hub, flywheel, prop and oil, you end up towards 75kg.. Radiator,
tubing and cooling liquid have to be added but 80kg is very well
feasible. I've made a carbon sump & valve covers, looks good
and removes 5.5kg. Engine Mount: The engine is hung on 3 barry mount
cups one in front, prop side and two on the back. Bolted on existing
engine bolds also two alu tubes go from each.cyl. head in a "V"
form to the "knot" point of the fuselage at the top of
the nose wheel bar to stabilize sideways engine movements. I've
used the bottom point as for the 912 installation with its silent
block where a steel "U" shape connected to the engine
is fixed. From there two stabilizing tubes goes to the outside in
inverted "V" shape, where floor board and front cross
tubes meet. It's very simple and straight forward.
There is lots of cowling space, however use low profile carbs because
the engine has to hang as high as possible. Performances: It is not a racer, cruise will be 120
Km/h at 3000rpm Vmax about 150 km/h at 3600 VZ will be 600 f/mn
at 90km/h. The average consumption made check over 100hs is 975
lts, maybe the engine could be leaned-out a bit more. Comparison: I have 3 fly-buddies one Rans coyote rotax
582, one Sky rotax 582 and one kitfox subaru EA71 with reduction
drive. I have the lowest clime rate and the lowest fuel burn. We
cruise all at about the same speed the Sky 582 has the highest clime
rate and the Coyote is the fatest but they are all tiny pilots (
I'm more that 220lbs!!)
