Today's Message Index:
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1. 06:13 AM - Re: Monowheel Brake Calliper Piston (LeeVaughan)
2. 04:13 PM - Dipole com antenna (Martin Tuck)
3. 07:07 PM - Re: Monowheel Brake Calliper Piston (rparigoris)
Message 1
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| Subject: | Re: Monowheel Brake Calliper Piston |
I have the Beringer manual lever on my control stick with the original factory
monowheel calipers and it works very well. It takes less than .75 inch of travel
on the handle to start braking. It has a locking pin in the braking position
allowing it to be used as a parking brake which is also very effective. It
has enough grab to hold the plane in place during full power a run up.
The lever just clears the knobs on the GNS430 when full forward though, no room
to spare.
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Lee
N69XS A069
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http://forums.matronics.com/viewtopic.php?p=494363#494363
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Message 2
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| Subject: | Dipole com antenna |
I'm thinking of switching from an external monopole type com antenna
(long rod sticking out at an angle with copper tape in a radiating
pattern on the fuselage floor) to a Bob Archer SA-006 dipole antenna.
The dipole appears looks like a '3' and made from thin sheet aluminum.
This '3' shape is what you attach the coax shield too (ground). The core
of the coax attaches to a small insulated aluminum plate in the middle
of the 3 shape.
Does anyone know how it works (the theory) and does anyone have one in
their Europa? How is it?
Regards,
Martin Tuck
N152MT
Message 3
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| Subject: | Re: Monowheel Brake Calliper Piston |
Hi Franzgo
I owned a Cessna 170 for 19 years and the caliper piston looks awful close to the
original Europa. The tailwheel springs were not very tight and if there was
no differential braking it would make for interesting landings unless landing
on grass or directly into the wind. Letting the bird sit outside, corrosion would
develop on the caliper bore and rust on the rotor. A landing or 2 and the
pads would wear, allow the seals to contact corroded bore and seals leak on the
bore. If lucky you would get a little breaking with pumping before fluid was
gone. What a hassle of changing calipers and pistons. Not exactly "blessed"l
but we machined a new piston from 6160 after being frustrated but instead of
1 o-ring groves, machined 2 and put a little silicone grease between o-rings.
That kept the o-ring bore for the real deal o-ring clean and worked for us for
over 15 years without a glitch. It was a real hazard losing brakes. I always
to try and use "blessed' components on type certificated aircraft,l but if something
"blessed' endangers my neck, safety comes first. Cleaned and replace O-rings
only a few times in 15 years and bore always looked great. My IA was completely
impressed. If I have a problem with my Europa piston, that's going to
be my plan. Ron P.
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