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May 24, 2019, 10:43 AM
Lookin' up at the centerline
taildragger1589's Avatar
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Wow! I've never seen a successful phonetic rim shot before... Well done.
PS feel free to drop links to your builds and projects here.
With 38000+ views I suddenly want to keep the old thread going.
Just for the heck of it, photos of my friend Paul in '89 and our two stampes in mortal combat.
(no we did not hit, but scared the socks off of the spectators (and ourselves) a few times)

ciao
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Jun 25, 2019, 05:23 PM
Lookin' up at the centerline
taildragger1589's Avatar
Thread OP
Another update.
Thought the Stampe ran out of gas but it was another problem.
The engine cut out every time inverted, so I broke down and pulled the tank.
It's just held in by clear aquarium silicone sealer.
After pulling, I could see that the fuel pickup line was suddenly an inch too long and was jammed sideways at the bottom/back of the tank. Couldn't move.
Pulled the brass tube forward an inch and the problem was solved.
(I replaced the brass tubes and pickup line while I had it apart)

The theory of what happened is:
i think in the crash a few posts back which knocked off the engine, pushed the brass tube back into the tank. The pickup tube is directly behind the muffler.
Next flight will prove whether I'm right.

Nick
Aug 09, 2019, 05:59 PM
Lookin' up at the centerline
taildragger1589's Avatar
Thread OP
A few things first:
Someone asked me what incidence and balance i used on my Stampe.
Just as an example, my friend Paul who also built one was sure it should be 0, 0, 0 on the upper wing lower wing and stab. He wound up making it balance 2" forward of the recommended cg and about 10 degrees of down elevator.
I went with the plans on mine and wound up with the balance point at the rear hold down bolt of the upper wing and a level elevator.

With the fuselage thrust line at 0....
Top wing 4 degrees positive.
Bottom wing 5 degrees positive.
Stab. 5 degrees positive.
CG: balances at the rear bolt of the top wing, I've flown as far back as the TE of the center section, but sometimes it takes 3 or 4 turns to come out of a spin.

anyway, we've test flown the Stampe with the repaired tank and it flew nicely inverted (for a Stampe) for as long as I wanted. I got so excited I accidentally flew out the tank and had to dead stick it in again.

Here tis....
Stampe Tank fix (4 min 45 sec)


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