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jaybrinkmeyer(at)yahoo.co
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 Posted: Fri Sep 08, 2006 1:26 pm Post subject: 113" fuse longeron angle - mark it "don't cut" |
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Several of the fuse longeron diagrams have two dimensions shown along the same
face within a single figure. That is, one diagram is used to show two different
pieces each with different dimensions. I doubt if my engineering graphics
professor would have given this scheme a passing mark.
Measure twice, think longer and cut once? Nah.
I cut the smaller pieces first without looking around the shop long enough. If
you do like me you might wind up needing a 113" longeron that is now in two
pieces (dooh!). Shipping a $15 part with dimensions over 8' from Oregon is
several hundred dollars as it has to go by freight.
Luckily I found a local source that supplies the equivalent part. If there's
anyone in the Colorado area in the same boat let me know as I now have extra
AA6-125 3/4 x 3/4.
Jay
Do Not Archive
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dlm46007(at)cox.net
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| Posted: Fri Sep 08, 2006 2:32 pm Post subject: 113" fuse longeron angle - mark it "don't cut" |
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Any raw materials can usually be purchased locally, especially if near a big
city. Industrial Metals (aka Capital Metals) in Tempe AZ (Phoenix area) can
supply aluminum in a variety of sizes and grades i.e. 2024,6061,7075. Also
McMaster Carr will ship raw materials as needed.
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bsponcil(at)belinblank.or
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| Posted: Fri Sep 08, 2006 8:00 pm Post subject: 113" fuse longeron angle - mark it "don't cut" |
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Yeah, I'm in a similar boat with a tailcone J-Channel. Like a doofus (sp?) I
cut one of the 93"ers too short and had to order a new one from Vans.
Naturally it shows up the Friday before a long labor day weekend bent at
about 35 degrees. I called vans the following week and they sent another
one which arrived today so badly bent the driver didn't even bother to wait
until I opened it. Looking at the tube he just said, "Oh man, I'd better
send this back."
Turns out that even PVC pipe is not enough to protect parts from the
shipping people, who apparently spend a good deal of time smashing things
with hammers.
Now I'm headed off to Reno (Dago Red is running this year!) and am wondering
what the chances are that I'll find a decent 8' length of J-channel waiting
on my porch when I get back.
Anyway, let that be a lesson to the guys/girls just starting. Cut the long
pieces first!!
-Brian
#40497
N211BD
Iowa City, IA
On 9/8/06 4:25 PM, "Jay Brinkmeyer" <jaybrinkmeyer(at)yahoo.com> wrote:
| Quote: |
Several of the fuse longeron diagrams have two dimensions shown along the same
face within a single figure. That is, one diagram is used to show two
different
pieces each with different dimensions. I doubt if my engineering graphics
professor would have given this scheme a passing mark.
Measure twice, think longer and cut once? Nah.
I cut the smaller pieces first without looking around the shop long enough. If
you do like me you might wind up needing a 113" longeron that is now in two
pieces (dooh!). Shipping a $15 part with dimensions over 8' from Oregon is
several hundred dollars as it has to go by freight.
Luckily I found a local source that supplies the equivalent part. If there's
anyone in the Colorado area in the same boat let me know as I now have extra
AA6-125 3/4 x 3/4.
Jay
Do Not Archive
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deruiteraircraftservices(
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| Posted: Sat Sep 09, 2006 1:14 am Post subject: 113" fuse longeron angle - mark it "don't cut" |
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I wonder why Van's put that particular warning in the
paperwork................
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rv10(at)sinkrate.com
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| Posted: Sat Sep 09, 2006 1:55 pm Post subject: 113" fuse longeron angle - mark it "don't cut" |
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I did something similar as well with the tailcone J-Channel but x 6. I
trimmed all 12 to length properly with no problems but didn't look that
carefully at the plans to "Trim the ends at a 45 deg angle as shown in
figure 2". After I finished cutting the angle on the last of 12 I looked at
the one in my hand and said... "Huh? That doesn't look right!"
Sure enough I cut the 45 not from the vertical edge but the horizontal so
all of them came to a point at the corner. When I squared off the now
messed up edges the 6 long ones were now too short.
The messed up 93"ers became the 6 shorter ones. All the others became wall
art. I robbed the wing kit, which I just picked up the day before, of the 6
8' J-Channel in it. Key word is "PICKED UP". Van's is a 20 minute drive
from my place. Still soaked me for $13.75 x 6 = $82.50 but no down time or
expensive freight snafu's.
So the lesson learned is of course read the plans more carefully before
cutting anything (or move closer to Van's).
-Ben
#40579
Tailcone
(Darn there are a lot of rivets! Should be done this weekend)
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rwhunter(at)integra.net
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| Posted: Sat Sep 09, 2006 2:18 pm Post subject: 113" fuse longeron angle - mark it "don't cut" |
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What page of the plans is the cutting of these pieces on so I can b
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rwhunter(at)integra.net
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| Posted: Sat Sep 09, 2006 2:19 pm Post subject: 113" fuse longeron angle - mark it "don't cut" |
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What page of the plans are the cutting of the J-Channels on so I don't
make the same mistake.
Rob Hunter
Elevator 40432
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rv10(at)sinkrate.com
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Albert Gardner
Joined: 10 Jan 2006
Posts: 455
Location: Yuma, AZ
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| Posted: Sun Sep 10, 2006 1:30 pm Post subject: 113" fuse longeron angle - mark it "don't cut" |
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You can splice J-channel with no problem. Butt 2 pieces together and overlap
a splice strip about 5 rivet on each side. Treat it as a repair and use the
FAA Acceptable Methods book.
Albert Gardner
Yuma, AZ
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