What's different about doing the weight and balance operation for a trigear,
compared
with a monowheel? I'm just approaching the end of a mono- to tri- conversion
and I've booked my inspector to come and do the business later this month.
He's done many weighings for many aircraft types and has all the necessary kit.
But I have the original instructions for this task in my old Europa Owners
Manual
stating that the 0 datum is at the forward face of the cowling, whereas these
days the correct position is measured 29.25" forward from the rear edge of
the cowling joggle in the fuselage.
Apart from that we'll need to measure the stations of the wheel centres aft of
the 0 datum and he'll use all that info including weight measured at each wheel
to make his calculations.
All I'm asking you kind people out there is to warn me of any "gotchas" so that
I don't embarrass myself when he arrives from 60 miles away. Like what essential
items should I provide? I already have realised that there's no dedicated
jacking point near each main wheel axle. In the absence of any better
suggestion,
I'm going to make a little steel bracket which bolts on through the spare
holes in the brake torque plate and has a welded projection for a trolley jack
to lift against. Is this how it's done?
Yours in eager anticipation. Jonathan
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