swash height.

[longdog67]

Hello to all, again.

Can anyone tell me if there is a measurement for the position of the swash plate on the main shaft? Say from the top of the swash bearing to the bottom of the head block.
I repaired mine after a heli/ground interface, replaced the feather shaft & a cyclic servo then couldn't get the swash level without adjusting the tie rods.
Why? nothing looks bent or broke & the heli seemed to fly ok today.(though I'm still at the very first stages of getting it to hover) I noticed the head speed is higher than it was before achieving lift off. I took great care in leveling the plate & checking the pitch was zero at zero throttle on both blades & paddles & then begins to increase as the stick gets just below centre, but it still felt different. Any thoughts??

[0h5h1t]

go to this site, it is full of excellent info on heli setup etc.

Raptor Technique

[fudded]

Hello to all, again.

Can anyone tell me if there is a measurement for the position of the swash plate on the main shaft? Say from the top of the swash bearing to the bottom of the head block.
I repaired mine after a heli/ground interface, replaced the feather shaft & a cyclic servo then couldn't get the swash level without adjusting the tie rods.
Why? nothing looks bent or broke & the heli seemed to fly ok today.(though I'm still at the very first stages of getting it to hover) I noticed the head speed is higher than it was before achieving lift off. I took great care in leveling the plate & checking the pitch was zero at zero throttle on both blades & paddles & then begins to increase as the stick gets just below centre, but it still felt different. Any thoughts??

Hi

At zero throttle you need negative pitch, If your still learning to hover about -4 is ok. With throttle at 50% both blades should be at 0 degrees. At full stick you should be about between +8 / +10.

Hope this helps

Sean

[waveydavey]

Hello to all, again.

Can anyone tell me if there is a measurement for the position of the swash plate on the main shaft? Say from the top of the swash bearing to the bottom of the head block.
I repaired mine after a heli/ground interface, replaced the feather shaft & a cyclic servo then couldn't get the swash level without adjusting the tie rods.
Why? nothing looks bent or broke & the heli seemed to fly ok today.(though I'm still at the very first stages of getting it to hover) I noticed the head speed is higher than it was before achieving lift off. I took great care in leveling the plate & checking the pitch was zero at zero throttle on both blades & paddles & then begins to increase as the stick gets just below centre, but it still felt different. Any thoughts??

Do you mean mid stick position? Make sure you have a straight line pitch curve active when setting pitch up. A heli can feel different when repaired, many things can effect this. The most likely, it wasn't set the same before the crash and you have been more meticulous in the repair. If you have replaced servos have you centered everything. Make sure you have everything square, bellcranks etc then alter the links to the swash to give you a level swash. Then work up to the head making sure that you follow your manual, your looking for 0 dgs pitch at mid stick with as little sub trim as you can and alter things mechanically to get this. Then you can set your pitch curves to give you what you need. Sean's guide at -4 at bottom stick and +10 at full stick is a good starting point.