My HL400 (Twister 3D storm)

[cjcj1949]

Thanks to all those who've posted on this competition class servo. It seems to need three trim settings.

1) Trim for rate mode. If you are patient this can be set to zero.

2) Trim for heading hold when on ground. This must produce a pulse width of 1520 micro seconds which is centre trim on my spectrum. You can find this trim on other txs by starting with centre and then watching the tail rotor and if it moves change the trim the other way until the movement stops.

3) Trim for flying. When in the air my gyro needs one to two click of right trim, depending on temperature and how it feels on the day.

I have to reposition the heli quite often and it often lands pointing in a different direction to the one I need for takeoff.

To stop the gyro turning rapidly on takeoff.

As soon as it lands I switch into rate mode, then I reposition the heli for takeoff, set the trim to zero, switch into heading mode, takeoff and put in two clicks of right trim to stop the tail moving.

I think this agrees with everybody elses comments. For initial flights as a beginner rate mode is predictable. When I first managed about ten seconds I found hold mode was better, but that was beginners luck. After a few exciting takeoffs I realised that rate mode was at least predictable. I now think that hold mode is better but you do have to be able to change trim in flight.

[jboweruk]

TBH mate it doesn't sound right somehow. Rate mode should not suit a beginner at all, the heli if trimmed right in rate mode should just about hold. In HH mode it should hold still w/out any trim. It landing with a different facing is I'm afraid down to the pilot, you need to keep the tail towards you when learning or you will find it hard, if you sort of concentrate on that for a few flights everything will slowly fall into place. It's how I was taught and you have seen my vids in the garden havent you? And believe me, the Blade 400 gyro just ain't the best in the world.

[Mojogoes]

I have it in HH all the time from take off , i was out today having a little sesh and connected up the power and did a couple or three circuites and as predicted went back into rates from HH and then into HH again while it was sat on the ground and the tail servo was creaping......powered it off then back on again and let it set itself and flew around again and tried the same as before and there was no difference from HH to rates switching....job done..........it seems to do this every time i fly which i put down purely to temp'r differencial between my house/car and outside temps......once its adjusted itself after been flown around for a little while it seems more constant/stable.

Like jboweruk has stated its down to the pilot to make any heading adjustment via input from the tx..........the older faternity have some time a problem with HH because back in the day where most gyros were mechanical or just electronic rates gyros , one flew so when going into a turn you could make the turn with out much input from the tail at all but by banking over with cyclick was all that was needed.......in HH you have to "drive" the tail and constently making adjustments or else it will stay in the atitude you last left it................if you have phoenix have a go with one of the lager scale models.....even when in max gyro HH mode the tail is all over the place and turns for you when you start to bank , trouble is lol it keeps on going into a pirouette wow the good old days bring um back...........................................not !!