25-02-2013, 09:09 AM
You should try taking off with the Shoestring!! It needs full right rudder shortly after starting the take off run and even then veers and rolls to the left as soon as it gets airbourne. It's a bit of juggel until it gets wound up but one at flying speed it's a beautie!!
It does have a steerable tail wheel so you can't just hold right rudder then open the throttle other wise it will turn hard right for the first meter or so then go straight. You have to let it get a bit of a run then before it starts off to the left apply right rudder.
This is the way I've got my Shoestring set up to help with some of these issues. Because it's a fast flyer. I use high rates for take offs and landings and low rates for when it's fairly shifting along so I've got smooth and precise controll at speed and the larger controll throws needed at low speed. All the rates are activated by the one switch (the aileron rates switch) so I can change all rates quickly and I know just where they are. using the one switch like this I don't have to worry if I have high rates set on elevator and low rates on ailerons or some other unfamiliar combination.
In high rates I have the rudder travel set up so that full rudder is just the correct amount needed for take off. That way when I take off I don't have to think about how much rudder I need to use. I can just jam on full right rudder, then I only have to worry about how much elevator and ailerons I need to get it up and away safely. It usually wants to roll to the left on take off as well.
My other tail draggers don't seem to have this tendancy. I think it's because I run fairly fine piched props on them and they have rather large verticle fins and rudders.
The shoestring however is a different beast it has a small fin and rudder in order to reduce drag and it has a very pitchy prop as well.
Everything is a trade off, those scale warbirds don't have big fins or rudders and if you want to run pitchy props on them, so that thay fly quick, they will Yaw on take off. It's the nature of the beast. But you can make it easier to fly by using rates as I've suggested.
It does have a steerable tail wheel so you can't just hold right rudder then open the throttle other wise it will turn hard right for the first meter or so then go straight. You have to let it get a bit of a run then before it starts off to the left apply right rudder.
This is the way I've got my Shoestring set up to help with some of these issues. Because it's a fast flyer. I use high rates for take offs and landings and low rates for when it's fairly shifting along so I've got smooth and precise controll at speed and the larger controll throws needed at low speed. All the rates are activated by the one switch (the aileron rates switch) so I can change all rates quickly and I know just where they are. using the one switch like this I don't have to worry if I have high rates set on elevator and low rates on ailerons or some other unfamiliar combination.
In high rates I have the rudder travel set up so that full rudder is just the correct amount needed for take off. That way when I take off I don't have to think about how much rudder I need to use. I can just jam on full right rudder, then I only have to worry about how much elevator and ailerons I need to get it up and away safely. It usually wants to roll to the left on take off as well.
My other tail draggers don't seem to have this tendancy. I think it's because I run fairly fine piched props on them and they have rather large verticle fins and rudders.
The shoestring however is a different beast it has a small fin and rudder in order to reduce drag and it has a very pitchy prop as well.
Everything is a trade off, those scale warbirds don't have big fins or rudders and if you want to run pitchy props on them, so that thay fly quick, they will Yaw on take off. It's the nature of the beast. But you can make it easier to fly by using rates as I've suggested.
“The knack of flying is learning how to throw your machine at the ground and miss.”
"When once you have tasted flight, you will forever walk the earth with your thoughts turned skyward, for there you have been, and there you will always long to return." ~Leonardo Da Vinci