You've got a channel dedicated to the TV in yaw right. So that's one that can be sacrificed before the others.

Originally Posted by Whiskey Whiskey

The 9th channel is used for the seperated ailerons to allow flaperons. I suppose I can plug in some V-tail mixers for full time tailerons. But that'd call for 4 V-tail mixers just to prevent the flap input from transfering to the tailerons.

Originally Posted by PeterVRC

A chute ??.... I don't want to have to fold something up every flight! LOL.

Oh no worries there.... you can just run into something again

LOL.... lesson learnt on that one, so it won't happen again. Plus that was a take-off, hehe. (could have deployed a chute in the last seconds maybe....)

Slowing in grass for landings is no problem. Luckily the Su landing gear - even stock, but mine is much more robust than that now - doesn't seem to have any issue with grass. And not even a hint of wanting to 'angular roll' off its trike ever.

Actually if you come in at 3.5kg you'd be 1kg over the original stress limit of these retracts. So I can't wait to see how that turns out for your. Get those brakes out to slow her right down.

Pete,

I was recommending a chute just incase you don't get up you can deploy it before u hit something again, to help slow Natalia down. I guess maybe for landings for the same reason, since she is packing some thighs on her. More of an emergency thing, but if your landing right u won't need it for landings with your LE slats , airbrake and all. Mine is mainly for landing on a shorter runway with a obstruction at the end.

Originally Posted by Whiskey Whiskey

The 9th channel is used for the seperated ailerons to allow flaperons. I suppose I can plug in some V-tail mixers for full time tailerons. But that'd call for 4 V-tail mixers just to prevent the flap input from transfering to the tailerons.

You could try this:

Ch1 to delta taileron
Ch2 to delta taileron
Ch3 Throttle
Ch4 to all kinds of rudders (Aero, TV, wheel, etc)
Ch5 to retracts
Ch6 to Flaperon 1
Ch7 to Flaperon 2
Ch8 to delta TV
Ch9 to delta TV

And Deltas don't need to be external, you can mix them from transmitter.

Maybe (Depending on transmitter) you need to use specific channels for flaperons (Like 1 & 6) but still can't get this same setup using program mixes on other channels.

Just a thought, up to you

Cheers!
Jandro.

All valid points, I'm just pig-headed. I don't want to give up have the rudder and yaw vector on independent channels for my vector on/off switch. I don't use the rudder alonge much in-flight, but like I said, pig-headed.

Lol, if Pete keeps stuffing Natalia, she's gonna run for the fence again!

Originally Posted by Whiskey Whiskey

Would anyone like to share their preferred CG measurements? I'm really interested to see if anyone has found their ideal spot aft of the manufacturer's limitation.

I have wondered that myself.

155mm is mine

with a 5000mah & 5300mah lipo

I have five large aircraft using those "Medium" sized retracts. All over 3.0Kg.
They don't really quote specs, but it is something in the area of "Suitable for 2.5Kg" (or 2.7Kg) aircraft.
Like most things, specs are rubbish... only useful as a guide...
So I assess....test... see what happens....
I have not had one failure of any retract, though every one I have is metal trunion converted. They tear out of a plane long before they get any chance to fail!

So I am not worried over them one iota.... they will even do 4Kg fine.

PeterVRC I hear you folks are cooking over there in OZ!

Not today here..... temperature wise
But some states have heat and fires. (not us)

Yeah, it's been a little warm here ...

http://www.news.com.au/national/home...-1226549906140

54C = 129F

I've spent some time working in those areas, but not any more!

Originally Posted by v8truckin

155mm is mine

Thanks V8.

Originally Posted by v8truckin

155mm is mine

with a 5000mah & 5300mah lipo

On my Su35 grey camo running 6s, I had 2 x 3s 5000s in series, weight came in at 800g total, I had them all the way forward against the retract bay, CG was at 150mm-- flew great!

Originally Posted by av8ersteve

I have wondered that myself.

On my Su35 grey camo running 6s, I had 2 x 3s 5000s in series, weight came in at 800g total, I had them all the way forward against the retract bay, CG was at 150mm-- flew great!