Trimming

[Anonymous]

Howdy all,

Hey could use your opinion on something. The Satellite 450 is flying decent but could be better. The power pattern has an issue as it gets very steep towards the end of the motor run often ending with the nose near vertical as the power shuts off. Result is a big stall followed by a few little ones until the right glide kicks in.

I have been thing of reducing the incidence or maybe a little of the washin. I’m afraid of reducing the washin as the inital part of the power pattern is very good. What say you guys.

Thanks,

Mike

[DAN BERRY]

I’d try a bit of right tab, or less left tab if you’ve already got left tab.
You can cure the stall by altering the wing keys to move the right wingtip aft. Do this very incrementally.

[rivers]

Mike, If you try the wing skew idea please follow Dan’s advice and do it in very, very small doses. Too much will cancel all your washin and cause a spin-in to the right under power. How do I know …..?

Dick

[DAN BERRY]

Very tiny adjustments with short engine runs. It might end up needing a washin tab on the right wing.
I’m talking about 1/64 ply shims at the pylon.

[rivers]

Mike, In order to improve competitiveness it’s best to eliminate all stalling at the top of the climb. Otherwise, there is too much loss of altitude, and you may get beat by the likes of Dan, Jim, and other top flyers. Here are some other ideas:

1. Check the article by electric flyer Bernie Crowe in the NFFS Digest for October 2008. Bernie describes his trimming method, which consists of a left thrust/right rudder tab combination. He balances the forces to get a right turning climb. When the motor quits there is enough speed for the rudder to kick the tail over into glide.

2. If the Satellite were mine I would fit it with an auto rudder and my electronic timer. The timer has adjustable release times, so that the rudder can be deployed either before or after motor shutdown. I would set it to come in about 1/2 second before motor stop and go from there. This is one of the trimming methods used by F1C flyers before bunt came into fashion.

Dick

[Anonymous]

Thanks everyone for your prompt response.

Yes I flew with Bernie at the SWR Bernie, myself and Mr. Pollard all max our seven rounds. The flyoff started with and ended with 10 second for 3 min max. Bernie maxed I missed by 13 seconds and I’m not sure what Mr. Pollard did but he ended up 3rd.

Unfortunatly my Sat is a bit portly at 18oz using a AXI 2212/12 and 7.5 X 4 folder. I have sinced tried an APC 8/4 and the performance is better IMHO.

I will give those suggestion a shot this weekend.

Is auto rudder leagal in F1Q?

Sorry I think I hijacked my own thread 😳

[Jim Jennings]

Auto rudder is legal in F1Q. Are you using 3 cells with your 2212/12?

[Anonymous]

Jim.

Yes 3 cell 700mah Enerland 30C Hacker Master 30 amp esc. I orderd a dozen apc 8×4 props from Hobby Lobby the other day as our hard earth tends a to break a few on DT. Only to find out today that APC makes an 8×4 folder. I will need to try that when these are gone.

I also bit on a Topnotch Maverick and I’m building that now.

[Jim Jennings]

Thanks for buying the Maverick. Do you need hubs for your folding prop?

[Author]

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