Today's Message Index:
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1. 05:29 PM - Re: Modified long wing tips (Bill Strahan)
2. 05:54 PM - Uneven EGTs at full throttle (Bill Strahan)
Message 1
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| Subject: | Re: Modified long wing tips |
"...a little tougher to give away your ideas."
Doug, sounds like intellectual property to me. :)
I wasn't trying to be negative by characterizing it that way. If someone came
calling asking me how I did specific things in my software business, in particular
things that differentiate us within our industry, I would not be willing
to share that. I would be giving away IP at that point.
I was simply thinking that this particular modification didn't strike me as particularly
valuable across the market of potential builders, and a great deal of
the value is in the work itself, not the knowledge of how to do it.
Perhaps I'm wrong. If so, it won't be a hallmark moment, it's happened before.
It's certainly Ryan's choice as to what he shares.
So, back to the topic at hand. At this point, I'm thinking I'll take the tips
and cut them to the size I want for my plane. Then I'll split them along the
leading edge so they can open up to take up some of the difference between the
smaller airfoil that will exist at the point I cut them compared to end of the
wing.
Then I'll bond a 4 strip thick layer of fiberglass about 2" wide to the inside
of the cut down tip to create the flange that will allow me to attach it to the
end of the wing. I'll attach it in place with screws, and have a big gap in
the front that I will fill with a block of easily sandable foam. I'll wrap the
end of the wing with some old .016 aluminum I have laying around to protect
it, and then sand the leading edge to shape.
Remove all of that from the wing, sand the foam down about a 1/16 and then 3 layers
of glass over that. Sand. Fill. Sand. Fill...etc.
If that description makes sense, any feedback on it?
Bill
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=272538#272538
Message 2
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| Subject: | Uneven EGTs at full throttle |
Anyone else experiencing very different EGTs at full throttle? I will see one
set of cylinders running 1300-1390 and the other side 980-1050.
2,4,6 are the cold ones. 1,3,5 are the hot ones. As soon as I throttle back,
the EGT drops on the hot side and comes up on the cold side until they're all
within about 30 degrees.
This occurs at all altitudes, and is particularly troublesome because I can't run
full throttle at altitude. At 12,500 the hot side is hot as ever, but the
cold side is all in the 900s and the engine is pretty rough. Worst I've seen
is just over 1400 on #5 while running 950 on #4. In that situation, as soon as
I pulled the throttle back to about 5 gph #5 dropped to 1370 and #4 came up
to 1360!
While it's fun to put along at 4 gph at 12,500 doing close to 140 mph, I'd much
rather be able to run it a bit harder...and when I grab the O2 bottle and head
the higher altitudes this will become more important.
Anyone else experienced this and fixed it?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=272541#272541
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