Super Cub Setup

[SimonM]

I'm new to RTF and the Super Cub - the manual doesn't answer all my questions - can anyone help with a few:

1. Once trimmed - how much travel should the elevator and rudder have if the stick is moved to extremes e.g. 0.5 cm up/down or left/right?

2. I have started with the clevices attached to the outer (least sensitive) holes - what is the recommended setting?

3. ACT - Is it best to start with it turned on?

4. Does the servo have a rate switch - how should it be set?

5. When trimming the elevator - both sides are not equal - is it to be expected?

And immediately after launching - is it appropriate to use a little up elevator to get the Cub out of the danger zone - e.g. close to the ground?

Kind regards
Simon

[sbaker78]

I can't answer most of your questions, being a newby myself, but regarding your question about using a little up elevator to get the Cub out of the danger zone, i'd say a definite yes. I've found there's a tendency for the cub to go groundward pretty much straight off with a hand launch, so i've now got a little trim set to counter balance this.

[sbaker78]

As for ACT yes, definitely use it. It's not a foolproof option, as i discovered when a strong gust of wind sent my plane straight to the ground at a rate of knots, however it will get you out of a lot of basic problems. I'm actually planning on holding the switch in place with some gaffa tape to avoid accidentally turning it off until i'm more proficient.

[Radweld]

5. When trimming the elevator - both sides are not equal - is it to be expected?


Hi Simon, Im concerned by what you say here. Do you mean the elevator isnt level or at 90 degrees with the rudder? if it's not level it will cause the plane to turn in the direction of the lowest side. It's best to make sure its perfectly level before you try to fly it.

Using some up elevator is ok but not too much, it's very very easy to stall on launch resulting in a heavy crash, you want to lauch level, a good strong throw and gently climb out and build up airspeed before you try to climb too quickly.

Unfortunately I dont know much about the Cub but if the transmitter has a rate switch then you can adjust the rate of the servos.

The switch will either be called Normal or Pro or Hi or Low, most Parkzone radios do have this but I am not 100% sure in this case.

[ralphp]

5. When trimming the elevator - both sides are not equal - is it to be expected?

:eek: this dosen't sound good. Some times the "horned" side that has the push rod attached can move slightly more than the non-controled side but not by much......a couple of mm

You might want to attach a pic of it?:D

[SimonM]

the push rod attached can move slightly more than the non-controled side but not by much......a couple of mm
Thanks - It seems OK then e.g. a couple of mm is normal. The explanation of the control side pushing on just one side is obvious (now).

How much should the elevator move up/down? And also for the rudder? :confused:

[Radweld]

From what i've heard they fly pretty decent out of the box. Give it a try first and make adjustments later.

[ralphp]

Don't do the same as me.....I tryed to trym my FW190 after a bout 10 seconds of flight, didn't gain height , turned and where did that tree come from?
Rad's right, fly from the box, get some height, throttle back to half and ajust the trim then.

[ralphp]

sorry forgot to say, Rad suggested using the low setting as per the instruction (i think on your controls this is the switch on the top right) and use the holes closest to the control surface. once you have mastered flight....then move down the holes till furthest away, and then for REAL FUN move the controls to FULL

[ralphp]

The simple answer for "beginers" is small amounts of travel in elevator and rudder.....
the only other thing to add or remember is small easy imputs in directional change, where possible let the plane "fly" and correct to the direction you want to go in.

[sbaker78]

I took mine out yesterday and, after a fairly minor landing in some weeds, i found the battery compartment had broken and i'd lost the battery too. I've now built a compartment for the battery in the compartment just under the wing, with a small wall to stop it hitting the servos. The undercarriage seems like a definite weak spot, as i'd already had to glue the whole assembly back in once!

[Radweld]

I took mine out yesterday and, after a fairly minor landing in some weeds, i found the battery compartment had broken and i'd lost the battery too. I've now built a compartment for the battery in the compartment just under the wing, with a small wall to stop it hitting the servos. The undercarriage seems like a definite weak spot, as I'd already had to glue the whole assembly back in once!

Unfortunately you cant do this without upsetting the planes center of gravity, the battery has to go into the original battery compartment to fly well. If you move the battery back, then it will probably pitch up when you launch it and land in pieces on the ground.

The battery needs to be in it's original battery compartment.

[Radweld]

sorry forgot to say, Rad suggested using the low setting as per the instruction (i think on your controls this is the switch on the top right) and use the holes closest to the control surface. once you have mastered flight....then move down the holes till furthest away, and then for REAL FUN move the controls to FULL

Dude, the holes closest to the control surface will give the most throw, you want to use the holes furthest away to limit the travel of the surface.:D

[sbaker78]

Already checked it and it's looking fine. Adjusting the positioning so it balances hasn't proven to be too much of a task.

[ralphp]

Dude, the holes closest to the control surface will give the most throw, you want to use the holes furthest away to limit the travel of the surface

Doh!:D slight confusion there.....I stand corrected....glad "the rad" the real pilots there to take control from the stuardess!Can I go back to the tail gun now.....is it at the front or back?:D