601zv(at)ritternet.com
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 Posted: Sat Sep 23, 2006 1:50 pm Post subject: Grove Gear help on 601XL, me too |
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I got the Gear Kit from ZAC except for the spring gear, and I have the Grove
gear on order. From what I can determine it will mount essentially the same
except that the bolts on the main gear support brakets will need to be moved
closer together to properly fit the narrower Grove gear. The question I have
is whether it is better to use the ZAC supplied pieces of rubber pipe per
the plans and kit, or to use the Grove radius blocks, or a combination of
both to reduce the twisting strain on the longerons. I sure wish I had
ordered the Grove gear back when they quoted me $900 gun-drilled, as it now
is $1.330. It's a substantial weight savings, but nearly twice the price of
the ZAC gear. Bottom line I think is that you will need to either weld up a
new set of support brackets or cut and reweld the bolts on the factory ones.
I'm waiting for delivery of the gear in order to determine the correct
placement of the bolts. Also, I'm wondering if before redoing the bolts, if
it might be wise to wait and let a preliminary weight and balance determine
if the narrower gear should be centered in the gear channel, or possible
offset fore or aft as needed for better weight balance. I know there are
people using the 601XL Grove gear, but like you, I find little helpful
discussion in the archives.
Robin in AR
N601ZV
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