Today's Message Index:
----------------------
1. 07:34 AM - Re: Chemicals and canopies (David Burton)
2. 08:09 AM - Dimple Stressing (BRUCE GRAY)
3. 08:37 AM - windows (Evan and Megan Johnson)
4. 01:11 PM - Re: Dimple Stressing (Fiveonepw@aol.com)
5. 02:32 PM - Re: windows (Jim Oke)
6. 07:24 PM - >Re: windows (Oldsfolks@aol.com)
7. 08:01 PM - Re:windows (Martin Hone)
Message 1
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| Subject: | Re: Chemicals and canopies |
--> RV-List message posted by: "David Burton" <dburton@nwlink.com>
> I should ask my optician wife but I think eyeglasses are made of
> polycarbonate which is what Lexan is. Maybe.
Polycarbonate is an option. For the last few years the one company making
poly lenses has not been for some reason and the lenses sold as poly have
been acrylic. I don't know if that has changed in the last year or so...
Message 2
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fmelder@verizon.net, dan@rvproject.com
| Subject: | Dimple Stressing |
--> RV-List message posted by: "BRUCE GRAY" <brucerv84us@hotmail.com>
Good Morning Gentlemen, I am due my wing kit in a couple weeks and have been
preparing a few things for that event. I had made a couple dimple test
stripes when building the emp.. To finish off my set of stripes I made a #6
& #8 dimple strip last night. I drill the proper clearance hole, deburred
both sides (not to much) and dimpled the strip. After doing so I noticed a
few stress cracks coming from the dimple hole radius I.D.. So thinking I
messed it up some how I made two more and with no avail found the pesky
cracks again. Is this the nature of the beast when the soft aluminum is
formed into the dimple that there will be some stress fractures in the
aluminum? Why this concerns me is if the strips, with good edge distance can
crack will this not in fact also occur on say the #8 dimples that attach the
wing skins to the main spar? TIA everyone, Bruce Gray
Message 3
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--> RV-List message posted by: "Evan and Megan Johnson" <evmeg@snowcrest.net>
Has anybody out there ever built a sliding window on one of these planes? A small
plexi slider just big enough to put a camera lens out of would be great. Or
does the rush of 200 mph air want to rip the canopy off if such a thing is tried?
Just curious.....thanks in advance...
Evan
RV10 Flaps
Message 4
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| Subject: | Re: Dimple Stressing |
--> RV-List message posted by: Fiveonepw@aol.com
In a message dated 5/15/04 10:10:01 AM Central Daylight Time,
brucerv84us@hotmail.com writes:
> After doing so I noticed a
> few stress cracks coming from the dimple hole radius I.D..
>>>>>>>>
How are you making your dimples- on the C-frame, squeezer or ? I usually had
better results on the larger holes with the squeezer. Does the male die
easily slip into the hole in the skin? (no jokes, guys!) The fit should be a
little loose, never a tight fit. (mygawd this'll never get through the
firewall!) Examine the hole carefully before dimpling for any cracks. Also make
sure
the dies are very clean, fit very well etc. Try not deburring at all as a
test- perhaps you are deburring too much. You might want to try drilling the
correct size hole, then re-drilling with one size larger (next # lower) If using
the C-frame, try various hammers, blow strength, number of blows. Use one
light blow at a time and examine hole each time for cracking- one hard one may
be better that 3 little taps etc. Are the parts you're testing on 2024 T-3?
Maybe you got a bad piece of scrap to practice on- try other pieces. You will
need to nip this in the bud- better order more test parts 8-)
Hope some of this helps- good luck!
Mark -6A flying...
Message 5
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--> RV-List message posted by: Jim Oke <wjoke@shaw.ca>
I do not know what the track record is on RV type aircraft but a good source
for the hardware and slider tracks would be the type of window commonly used
on high performance sailplanes. These things are made by a company called
"Mecaplex" in Switzerland, costly by nice quality. Try a search for
"sailplane parts" for a N. American source. "Wings and Wheels" glider
supplies should be one source.
If you visit a local glider operation and look at most any fiberglass
sailplane - it will probably have one of these windows.
Jim Oke
Wpg., MB
RV-3, RV-6A, ASW-20
----- Original Message -----
From: "Evan and Megan Johnson" <evmeg@snowcrest.net>
Subject: RV-List: windows
> --> RV-List message posted by: "Evan and Megan Johnson"
<evmeg@snowcrest.net>
>
> Has anybody out there ever built a sliding window on one of these planes?
A small plexi slider just big enough to put a camera lens out of would be
great. Or does the rush of 200 mph air want to rip the canopy off if such a
thing is tried? Just curious.....thanks in advance...
>
>
> Evan
> RV10 Flaps
>
>
Message 6
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| Subject: | Re: >Re: windows |
--> RV-List message posted by: Oldsfolks@aol.com
I think I wouldn't want to take a chance with my thousand dollar
+installation canopy by cutting a hole in it !!
My opinion,
Bob Olds RV-4 , N1191X
A&P , EAA Tech. Counselor
Charleston,Arkansas
Real Aviators Fly Taildraggers
Message 7
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--> RV-List message posted by: "Martin Hone" <martin.hone@tradergroup.com.au>
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IGEgc2xpZGluZyB3aW5kb3cgY29udmVyc2lvbiBmb3IgaGlzIGZpcnN0IFJWNi4gSSB0aGluayBp
dCB3YXMgYSBjYXNlIG9mIG1ha2luZyB0aGUgYmVzdCBvdXQgb2YgdGhlIHNpdHVhdGlvbiBhcyBo
ZSBoYWQgY3JhY2tlZCB0aGUgY2Fub3B5IGFscmVhZHkuLi4uDQogDQpGV0lXDQogDQpNYXJ0aW4g
aW4gT3oNCg==
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