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Old 12-15-2002 | 09:47 PM
  #75  
rlt55
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Joined: May 2002
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From: Woburn, MA
Default Great plane, but the TT46PRO is a bear!

Today, I had my first 2-stroke experience! (Now, I love my 4-stoke even more)!

After 4 tanks of break-in (including one 5 minute flight in windy condx), it stalled out on take-off at about 5 feet.

Crash Report:
I got the nose down okay and was recovering nicely, but I didn't see the 3" deep rut (left by our motorcycle friends).
The left gear bent back a couple inches as the wheel embedded itself into the mud.
While cleaning, I picked out a lot of mud and grass stuck between the rim and tire.
The plane was spun around, but besides the main gear, I see no other damage.

During the first two tanks, the engine seemed to run better each time cranked it over. (At home in my driveway).
At the field, I used two more tanks on taxi practice (the wind was whipping).

Flight report:
When the wind dropped down a bit (about 10 mph), it was running a little rich, but seemed to sound okay over the throttle range.
I took it up, only to have the wind pick up again. So, I didn't get much chance to tweak the trim settings. A couple of times, it appeared to be flying a little nose-up. (Might have been the wind).
I did a few loops and a little inverted. The plane seemed to handle okay.
The rolls looked real good, even with the 'beginner' throws set.
I flew at low to half throttle most of the time. Take off was quick at 3/4 power.
Wind was gusting hard during landing, so it wasn't real pretty.
A little bounce and a short roll out, (diagonal across the runway)!

It seems like the idle needed to be tweaked a little, every time I restarted the engine.
Starting at 2.5 turns out, I was moving it about +/- 1/5 a turn each time I ran it and re-started it. In the end, it seemed to only want to run (well) very rich.
To get max RPMs, I had to make it so rich that the right wing was
being sprayed with lots of fuel from the muffler. It was dumping more fuel than it was burning!
I would lean it out (to max rpms) and pinch the fuel line. It would die off so fast, there wasn't time to let go of the line before it died out.
I would try again, one click richer and it would die out the same way.
I would repeat, moving one click at a time, and soon, it would be spraying large amounts of fuel.

After a couple of frustrating hours, Mitch showed to fly his E-plane (too windy).
He tired it, starting from 2 1/2 and leaning it out for best RPM (and doing the pinch test).
He got the same results as me. As he was leaving, he recommended I adjust the low-speed idle. (I'm saving that for later).

For my 'last' flight, I picked a spot in the middle. It was rich, but not spraying a lot.
Throttle response seemed okay until take-off when it stalled, under a slow steady application of throttle up to about 3/4 full, where she died.

I'm using an ENYA #3 "Hot" plug and I'm thinking of trying an ENYA #4 "Medium-Hot".
(Or maybe get another brand)?

Any advice?