Is this with the new revised CG?
Tipstall....
Well, no, I didn't realize there was an updated CG recommendation. Up to 6" behind the leading edge!
I guess I'm pretty close to that, without the heavy hub and washers I added to the prop shaft to get me as far forward as possible. Thanks for the updated info!
I was also going to try a Saito .91. I'm very interested to hear your results.
Tipstall.....
I have flown it a couple of times since the Saito 91 was stuffed in to replace my 61 FX. The weather over the last weekend was very gusty and turbulent so we (the two of us who braved flying) were lucky to return safely, let alone wring out trim details, etc. I think the Saito will be fine. I know I'm exceeding the recommended power for this plane, I think I can handle it, but if something breaks I won't complain.
Since we choose, buy, build, assemble, and decide when and how to fly our own stuff I believe every crash is pilot error.
it seems to flood out my carb to the point that I can't start
James77, been there, done that. Either two or four strokes mounted inverted in the UCD 46 will have the tank above the carb. Simply put, the high tank means fuel siphons out until it's below the level of the carb. That's a lot of fuel! With an inverted two stroke the fuel dribbles out of the carb onto the ground. With an inverted four stroke the fuel dribbles into the engine until you have hydro lock.
Here's the way to handle this problem with a simple procedural change!. First, turn on the radio and trim the carburetor all the way off (stick down, trim down). This will help to close down the fuel orifice so very little can flow into the carb. Now connect the fueling line and fill 'er up. Some fuel will shoot out of the vent, but that opening is very high in the tank (in an air pocket) and will not siphon continually. Now pull out your fueling line and quickly stick in a short, plugged piece of line into the fueling port. The fueling valve will prevent fuel from flowing to the carburetor and the plug will prevent the siphoning action. Now get everything ready, put the radio trim up to a good starting level, pull the plugged fuel line out of the fueling valve, and spin 'er up! Vroom!
Sorry for such a long post (he says, making the post longer).