Hi i am having isues getting my tail locked. This is on a compass 7hvu. The tail will blow out when coming down from a backwards loop. My piro consistency is up at 195 i wasnt sure how high i could go. Rudder multipler is at 1.3 and the gyro gain is around 70 servo bls251 rudder delay 0 everything else stock. Upping my piro consistency helped alot can i go higher ?? Thanks guys

_________________
Compass 7hv v2 spirit pro. Compass 7hv v2 spirit pro. Trex 550fl spirit. Heli-x sim. NeXt sim. Pheonix sim. Fms p51 1400 spirit. Coolice 2400watt psu. Pl6. Icharger 206. Peter lynn twister 5.6. Dx9. TM1000.

Hi,

rudder blow out is caused by too low tail limits or mechanical limits so the rudder can't counteract so big force.
With compass there may be even opposite issue, when limits are too high and rudder blades are nearly at 90° which is very, very high.
There should be approx max. 35° blades angle.

Your piro consistency is quite high, so I don't recommend to increase it more.
Does the rudder hold correctly except you can see blow out? If so, then there is only such problem with limits.

What are your rudder limits (end-points)?

_________________
Spirit System developer

Yeah i would say its just blow outs i am not sure what my limits are and max blade angle i will look and report back thanks

_________________
Compass 7hv v2 spirit pro. Compass 7hv v2 spirit pro. Trex 550fl spirit. Heli-x sim. NeXt sim. Pheonix sim. Fms p51 1400 spirit. Coolice 2400watt psu. Pl6. Icharger 206. Peter lynn twister 5.6. Dx9. TM1000.

What tail blades are you using? The Compass heli's have a TON of throw, however, after a certain point more throw does nothing to help hold the tail. To increase tail hold there are really only 2 options at that point.

1. Spin the tail faster (Higher HS or higher tail ratio)

or 2. Larger/bigger tail blades.

If you can fit thicker, or longer tail blades that may help with the issue, just don't go too big or you will loose resolution.

Also, if using plastic tailblades you could try CF ones for more hold as well.

This is all assuming your tail servo is up to the task.

I am using kbdd 115mm i only fly 1800rpm so the lowish headspead wont be helping matters much. Dont get me it still flies well just noticed a few tail blow outs today but it was very windy

_________________
Compass 7hv v2 spirit pro. Compass 7hv v2 spirit pro. Trex 550fl spirit. Heli-x sim. NeXt sim. Pheonix sim. Fms p51 1400 spirit. Coolice 2400watt psu. Pl6. Icharger 206. Peter lynn twister 5.6. Dx9. TM1000.

My rudder limits are 145 each way that gives me nearly all the available travel on the pitch slider. Just Backed off a few mm from tail box and hub as described in the compass manual

_________________
Compass 7hv v2 spirit pro. Compass 7hv v2 spirit pro. Trex 550fl spirit. Heli-x sim. NeXt sim. Pheonix sim. Fms p51 1400 spirit. Coolice 2400watt psu. Pl6. Icharger 206. Peter lynn twister 5.6. Dx9. TM1000.

Thanks for the info. So your limits are changed and tested or you will be testing it now?

_________________
Spirit System developer

Moved the ball out my limits are 130 each way tail seems to be holding much better. Loving how the spirit flies managed to get a fair few flights in this weekend on my 7hv and 700e dfc spirit on both. First real flight session since having these units and am well happy with how they perform. Only one more to get now for 600e dfc

_________________
Compass 7hv v2 spirit pro. Compass 7hv v2 spirit pro. Trex 550fl spirit. Heli-x sim. NeXt sim. Pheonix sim. Fms p51 1400 spirit. Coolice 2400watt psu. Pl6. Icharger 206. Peter lynn twister 5.6. Dx9. TM1000.

Thank you very much for the info! I am glad for your report. In case of any question feel free to ask.

_________________
Spirit System developer