Raptor 30

[martin uly]

Me raptor has developed a bad case of the shakes , ive checked n balanced blades , what else should i be checking please ?

[David Drew]

Have you crashed it? Heavy landings?

Feathering shaft?. Is the motor running ok? It could need tuning to suit the weather.

Headspeed low?

Blades correct tension in the grips?

Mainshaft bent?

Is this at all throttle positions?

[PKNEC]

Bent flybar.
Bearings goosed.

[martin uly]

Flybar straight , blades in grip so i can nudge them forward they not loose , fine on ground , soon as it gets in the air starts shakin violently , front starter shaft bearings bin changed everything tight checked and double checked

[David Drew]

What is the headspeed? Could be too low.

[martin uly]

The motor sounds like its going at right rate of knots , how do i know what head speed its running please

[martin uly]

It hasnt been crashed or landed heavy

[David Drew]

The motor sounds like its going at right rate of knots , how do i know what head speed its running please

You need someone to tacho it for you.

if it is not headspeed then something is bent or loose in the head or mast.

Are the paddles in line with the flybar carrier?

Failing all that you need someone to take a look.

[martin uly]

Paddles are in line , the more throttle you give it the more it shakes, have given it good look over and carnt see owt loose, bit of a mystery lol , will get someone to check it over me thinks

[David Drew]

Yes, a good check.

,Engine mounting bolts. Clutch bell and bearings, and everything above. As you say - a mystery

[martin uly]

Clutch bell ,starter shaft and bearings brand new,

[Mike Sanders]

What do you mean by the shakes? Is it the tail shaking? I find that a lot of problems are caused by the tail pitch slider becoming a bit sticky. Check that it is super smooth.

[martin uly]

Main head thats shaking , if i lift it above 6ft i nearly loose control ov it

[PKNEC]

I use this app for checking headspeed https://play.google.com/store/apps/d....headspeedtach.
Ive not compared it against a dedicated tacho but calculated headspeeds have been very accurate and its free.


Just spotted this...look for the post on head dampers
http://rc.runryder.com/helicopter/t84768p1/