[Bdegan]

Originally Posted by TBrum

ROTFL!!!! Isn't that true, eh Gordon!!!!!

That tank... most painters will actually glue on computer-printed bills and then clear overtop. Everything is paint on this one and he has just over 200 hours invested in that tank. I should have got a picture of the fenders!!

Approximate cost of that entire paint job will be just shy of $7000.00

Tank?? What tank?



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[wingburner]

WOW....looks great...can't wait to see it finished!!

[TBrum]

This afternoon, I got the CF reinforcement laid up on the tops of the wing cores

[TBrum]

Tonight I got the sheeting laid up on the left wing and under 600lbs of weight
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Better hope the basement floor doesn't crack, LOL!!

[agl892]

Originally Posted by bullen

Trevor, the pattern guys will probably give a far more technical explanation but in short it gives the plane a softer feel around neutral.

Brent

I have done TE thickening (flare's or whatever) for many years ('05 was the first time I did it), it does exactly as Brent mentioned. Just like adding expo. Some will say they do other things, but I think that's mostly just BS, the main thing is reducing neutral sensitivity.

The reason you do it on the rudder at least from a pattern perspective....is rudder is a very non-linear surface, you usually have a fair amount of deflection for certain aspects of flight (KE loops, Rolling loops, KE 8's, KE cubans etc. all stuff in pattern as the maneuver creation is a little more wide open to creative minds), and next to no throw in point rolls....on a modern pattern model it takes only a few degrees of deflection to fly on knife edge, the rudders are as effective as an elevator.

Soooo you end up with a shitload of expo on the rudder, which makes it hard to fly since the surface is really non-linear, by adding the flare you can reduce the expo (usually by more than half depending on the size of flare) and get the feeling right. Too much flare and the rudder is dead as a doornail at neutral and you wont get along with the airplane.

Not sure its as much a benefit in IMAC as they don't have the wild KE stuff that pattern does.

Doing it on aileron and elevator is pointless because those surfaces don't suffer from the same issue as the rudder.

PS: Making the TE really thick (3/8"-1/2" or so) does the exact same thing. I have seen flare on a pattern plane that was about 1" wide.

CN

[cravenjw]

Trev, do you embed the tow in a groove or is it just glued on the surface?

[TBrum]

Thanks for the explanation Chad - makes a ton of sense now!!!!

Hopefully you can give Brent's plane a good beating and tell us what you think of it. I'm seriously considering doing a PRO for myself this summer and will likely do the rudder flair also

Cheers

Trev

[TBrum]

Originally Posted by cravenjw

Trev, do you embed the tow in a groove or is it just glued on the surface?

I make a groove in the foam. I have a 1/4" thick stick that is wrapped with sandpaper and I just run it along a straightedge to create the 1/4" wide groove by about 1/32". It only takes a few steady swipes and the voila!!

You want the groove just deep enought that the CF doesn't stick above and cause a ridge in the sheeting after layup. I have cut the cross-section of these grooves a number of times and the Ultimate Glue fills in any voids perfectly!!


Here's a few pictures that sorta show the grooves!!...

[bullen]

Originally Posted by Minty

Brent!!!!

You need the one of the airbrushed girls on the front of the plane.. like the past pictures (4) would be awesome .. So to have all the skulls money and the girl! Priceless..

Hope this bird makes it to Valley Of Hope..

looking good..

James

It will be there along with a few others. Its a great event to fly at.

[bullen]

Chad, thanks for explaining the benefits if the TE treatment on the rudder. I will always take any help to improve my flying.