Not a happy bunny at all!!

[Ashley Davis]

sounds like it fried and FETs went open circuit......so basically 22V went through it all. The Gyro would probably protect the tail servo, CSMs are good at taking high voltages.

[Sesame]

its now looking like its taken out my Rx to some extent as well Either that or all my cyclic servos as the only thing now working appears to be the tail servo

When mine went up on my 500 it took out 1 of the servos smoke out of both.

[Smoothound]

If it's taken out the servos anyone want a 500 for spares?

[Smoothound]

sounds like it fried and FETs went open circuit......so basically 22V went through it all. The Gyro would probably protect the tail servo, CSMs are good at taking high voltages.

Think you are pretty much bang on Ashley

Everything is working except for the cyclics, 3xJR DS3500G's. What chance Align coughing up for them...less than zero I reckon

£120's worth of servos down the plug hole cos I bet they are unviable to get repaired

Back to the Knight and the 450 V2 for me now then...

[Toolman]

Thats Awful,
How on earth did you manage to get the Esc off the heli while it was burning?

Tim.

[Smoothound]

Thats Awful,
How on earth did you manage to get the Esc off the heli while it was burning?

Tim.

With great difficulty

Something it taught me was that it's all very well to have everything strapped on nicely so it don't come off in flight etc. but when you need to get it off quickly it's a bloody nightmare

I'm just glad I only had it strapped on with a velcro tie rather than a cable tie because by the time I'd run indoors to get the snips thje heli would have gone up as well

[Thomas]

I flick into idle up in order to spool up, that way you save putting a big current spike through it at switch over.

If I were to flick mine to idle up to spool up it would strip a gear - it goes from 0 - full bananas instantly.

[Smoothound]

If I were to flick mine to idle up to spool up it would strip a gear - it goes from 0 - full bananas instantly.

This is why I've got into the habit of spool up in N till it's going some then flick to ST1.

Been at it so long and there were so many ESC's with crappy spool up that the Kontronik was the exception rather than the rule

[jimheli]

bad luck mate ,i thought it was bad enough esc but as i read servos as well that's very annoying what a b.......st

[Tim Procter]

Bad luck Phil, As quoted its a bad job the esc going but to take out the servos thats just a kick in the nuts.

[Smoothound]

Bad luck Phil, As quoted its a bad job the esc going but to take out the servos thats just a kick in the nuts.

From what I read it's quite normal that a smoked ESC takes out the servos as well.Just curious what would have happened if I'd have pulled the red wire and used a separate BEC??

Like I said before the main ****er is that although I will get a new ESC there is pretty much no chance of getting anything for the servos it fried in it's death throws

[Rat]

Makes me think they need to be putting protective zener diodes across the outputs from these regulators.. Certainly a cheap and easy mod to do aftermarket as well.

[Leebert]

Jeez Phil, not having much luck of late mate

Think I might put my ESC on something "quick release"... just in case

[heliward0]

If it's taken out the servos anyone want a 500 for spares?

if your serious phil how much mate.

[Smoothound]

if your serious phil how much mate.

We will see

Just phoned Macgregors and they can repair the servos but if its the amp(most likely) thats gone it's £15 plus another £15 labour per servo assuming the motors are still ok

3 new servos is the only really viable option I guess as it's really not worth spending £30 on a £40 servo is it