Had the maiden flight of my E-90 today. Boy what a blistering hot day at Prado (Chino Hills, CA 652' above sea level) -- just about 100deg on the tarmac by 10:30AM. I'm running a YS 110FZ, Hitec HS645MGs for Ail & Elevator, Aritronics 94357 (2x faster than the Hitecs) on Rudder, HS625MG for throttle, 1600 mah NIMH. I switched out the stock control horn arms for the 3/4" ones in the Dubro 867 set and used the Dubro Giant scale plastic hinges instead of the metal ones provided with the kit (This was suggested in Dean Pappas great article in Model Aviation last September). I reinforced the LG plate with a couple of small strips 5oz fiberglass. Otherwise everything else was stock and by the book.

Ran the AI and EL at 12 deg and the Rudder at 15 deg. 15x8 APC prop with Cool Power 30% Heli fuel.

Got 2 flights in before the engine started to act up (probably from the heat).

First was with CG just shy of 7" (measured at home) -- way too nose heavy. Then moved the batt pack and receiver back 2" for the second flight -- still too nose heavy. Tracked OK on 45 deg up lines but dove on high bank turns. Didn't have the CG machine with me.

For the next outing, Ive switched locations of the battery and receiver (moved the battery back 4") and will try again. I'll balance it first to make certain I'm within the 7 1/4" limit -- this puts the 6V Nimh battery back right in front of the servo tray and the receiver (Airtronics PCM 8 Ch) right in front of that. I think this will do it. Can't imagine what's up with the folks that say they needed to add nose weight with this configuration.

Needed only a couple of clicks left aileron trim.

The 100FZ has incredible power in this plane. Unfortnuately, I don't have it dialed in yet and it was too freakin hot to really test out. Have about 130 flights on the engine, but just got it back from YS Performance after crash testing.

I'm headed off to CABO for a week's vacation with the family, so I won't get to put it back in the air until Sat 7/22. I'll give everyone a follow-up report then.

Any hints on dialing in a YS 110FZ, please let me know. Low to high transition feels too rich, hard to keep the engine lit at med-low rpm, and I can't get low speed idle under 2200.

I've got the engine mounted parallel to the hardwood rails (the engine is a bit smaller than the width of the rails), but it looks like a whole lot of right thust. I'm just a little concerned its too much. How do you tell if there's too much or not enough right thrust?

Thanks all.

Steve