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HomeAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › Does the throttle jockey pro "give up"?
11-01-2004 02:48 PM  13 years agoPost 1
Ringding

rrApprentice

Austria

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Today when doing a stall turn with pretty much pitch for the climb I noticed that after the turn, the headspeed was quite low, although the TJpro was engaged and holding before, and I was in idle up. Both verified - i switched the TJ aux channel between high and low headspeed, and it would follow. The engine bogged a good deal, but shouldn't it come up again, when the load is gone?

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11-01-2004 03:49 PM  13 years agoPost 2
Dr Lodge

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Guildford, Surrey - UK

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If the head speed falls below 95% of what is programme, no. Not until the headspeed inceases again to within 95% of the target.

Vibe 90, Vibe 50, Vigor CS x2,
Dyna-x, Knight 503D, Logo 10,
TRex 500, Furion, Gaui EP200

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11-05-2004 05:06 PM  13 years agoPost 3
Ringding

rrApprentice

Austria

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Are you sure? This would be more or less the way the revmax limiter works.

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11-05-2004 11:33 PM  13 years agoPost 4
wouter

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Belgium

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is your engine tuned ok?

if your engine is running too rich and headspeed drops the
TJ will try to compensate by adding more throttle.
But sometimes that will "drown" the engine even more...

maybe it's something like that you're experiencing....

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11-06-2004 12:19 AM  13 years agoPost 5
Ringding

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Austria

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Good thought...

I was running very rich (still fiddling). I didn't have this effect when punching full throttle manually. But then again, when I did this, it was not bogged down. I'll try again.

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11-06-2004 12:33 AM  13 years agoPost 6
George Matthews

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N.W. Ohio

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The TJ can only work within the power limitations of you setup.
If the TJ senses the need for throttle increase it will continue to give that increase until it is at full throttle. If at that point the heli still needs more power to maintain headspeed you need more power ( better mixture, larger engine, proper gearing) .

George Matthews

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11-06-2004 02:25 AM  13 years agoPost 7
PietervA

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New Zealand

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If you're in any doubt re your engine settings, then disable the TJPro, fly with curves only, get the engine optimised, and then re-engage the TJPro. A governor masks inadequate engine setup, until you bog with high demand manoeuvres and then don't know which way to adjust ....... rich or lean.

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