Today's Message Index:
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1. 07:21 AM - new old topic windshield fitting (egp8111)
2. 08:12 AM - Re: new old topic windshield fitting (kirk hull)
3. 03:23 PM - Re: new old topic windshield fitting (dholly)
4. 03:44 PM - airframe grounding (bob noffs)
Message 1
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| Subject: | new old topic windshield fitting |
I'm replacing the windshield on a KF III. The new material supplied by Kitfox
is considerably thicker than the orginal windshield. It has all fit well except
the front part where the windshield comes over the front spar carry thru and
then has to bend back to attach to the door post. It is requiring more force
than I'm comfortable with using. Is anyone familiar with the Kitfox supplied
windshield material ? Can I use a heat gun to soften things up some ? Does
the protective material need to be removed before you heat it up.
good news is the 912 is installed, the panel is in and I'm ready to make engine
noise as soon as I get this windshield installed!
thanks,
EG
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=324798#324798
Message 2
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| Subject: | new old topic windshield fitting |
Yes a heat gun makes it much easier and you do have to remove the film.
Also be sure that the edges are smooth or it could crack.
-----Original Message-----
From: owner-kitfox-list-server@matronics.com
[mailto:owner-kitfox-list-server@matronics.com] On Behalf Of egp8111
Sent: Tuesday, December 28, 2010 9:19 AM
Subject: Kitfox-List: new old topic windshield fitting
I'm replacing the windshield on a KF III. The new material supplied by
Kitfox is considerably thicker than the orginal windshield. It has all fit
well except the front part where the windshield comes over the front spar
carry thru and then has to bend back to attach to the door post. It is
requiring more force than I'm comfortable with using. Is anyone familiar
with the Kitfox supplied windshield material ? Can I use a heat gun to
soften things up some ? Does the protective material need to be removed
before you heat it up.
good news is the 912 is installed, the panel is in and I'm ready to make
engine noise as soon as I get this windshield installed!
thanks,
EG
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=324798#324798
Message 3
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| Subject: | Re: new old topic windshield fitting |
EG-
I replaced my Model III windshield/skylight (.060) this year. The Lexan polycarbonate
manufacturer FAQ's says controlled and uniform heating of the entire polycarbonate
sheet is a critical factor for hot bending, as slow heating rates
will balance out hot spots and allow the sheet edges to reach the required forming
temperature. What I did...
After attaching to the rear carry-thru and butt ribs, I removed the protective
film and hooked a 1000w halogen work light to the headrack inside near the front
bend area. The heat trapped under the sheet warms the horizontal bend area
plus a large portion of the sheet including the spar cutout sections. I also placed
my twin 500w halogen stand outside to shine on and warm the vertical post
edge and spar cutouts on the windscreen before starting on the sharper bends.
After everything was warmed sufficiently it bent and went together fairly easily.
Once riveted in place, I used a heat gun (low setting only!) on the still
warm windscreen to provide some additional stress relief around the spar cutout
curves as added insurance against future crazing. I also heated and bent up
the rear corners of the skylight slightly to prevent interference with the folded
wings.
Worked like a charm for me and based on the direct from mfg info I think this process
has merit. Blasting the acute, compound curves with high localized heat
might make the bending process easier than cold forming but, unless you heat
the entire sheet (or as much as possible around the target work area), IMHO you
have not done everything you can do to help prevent future crazing per mfg instructions.
Good luck, sounds like you're getting close!
--------
-Kitfox III 582 Blue/C Grove Spring / Aerocet 1100 Amphibs
-Airdale Avid+ (project) TD / W.I.B. Gear
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=324850#324850
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Message 4
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| Subject: | airframe grounding |
hi all, i was visiting a friend who bought a ''second hand ''kitfox. i
noticed that on at least 2 engine mount to airframe bolts there was an
elect. ring terminal on the bolt . terminals were to ground all to the
battrey. is this recommended/accepted practice with engine mount bolts?
bob noffs
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