Agusta AW139
Join Date: Aug 2007
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May I ask a technical question about the AW139 here?. At what altitude does the tape rad alt disappear from the PFD to be replaced by a digital rad alt readout and then at what altitude does the digital rad alt disappear please?
regards
Ed
regards
Ed
Join Date: Aug 2007
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Digital up to 2500 feet may be correct but I do not think the tape up to 500 is. Just seen a photo of the real thing flying with the rad alt at 600 ft with tape still showing.
I'm thinking rad tape up to 1000 or 1500ft.
I'm thinking rad tape up to 1000 or 1500ft.
Join Date: Aug 2001
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AW139 Training Blog
For those that are unaware I run a blog at Sim Trainer ? Sim Trainer where you can read some interesting stuff and air your views about them if you feel the need. Drop by and have your say.
G.
G.
Join Date: Aug 2003
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TQ Limiter
Anyone out there fly with the TQ Limiter on all the time? Please don't say "Yes, because I don't want to bust any Limits!"...heard that one and nearly spat my cornflakes out ffs!
Join Date: Feb 2003
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Well if the Tq limiter is for AEO ops, why not? it will be there to prevent pilots abusing the operational ratings and subsequent maintenance/lifing issues, I assume that in an OEI condition it is not there and at some point AEO with rotor drooped against the limiter it also disappears to give you all the power you need after you have got yourself into a position you shouldn't have.
DM
DM
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I'm curious exactly what criteria causes the TQ Limiter to auto-disengage? Is it really just an NR trigger? I haven't found anywhere that clearly says what causes it to disengage.
I don't have the RFM to hand at the moment, but I think the training text just says it will disengage if an actual engine failure is detected.
So the scenario I'm imagining is an engine run down or reduced power output (but not full flame out) shortly after TDP. If the TQ limiter doesn't drop out, it could be a bad moment to limit the power available from the remaining engine.
BG.
I don't have the RFM to hand at the moment, but I think the training text just says it will disengage if an actual engine failure is detected.
So the scenario I'm imagining is an engine run down or reduced power output (but not full flame out) shortly after TDP. If the TQ limiter doesn't drop out, it could be a bad moment to limit the power available from the remaining engine.
BG.
Well if the Tq limiter is for AEO ops, why not?
I'm curious exactly what criteria causes the TQ Limiter to auto-disengage
Join Date: Feb 2005
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Dangermouse,
It doesn't disengage if you are AEO. The Nr just keeps on drooping.
The Tq limiter is designed for use when OEI training. If you screw up and droop the Nr too low, the OEI training switch kicks back automatically to the centre, and bang! you have full power very quickly. Without the torque limiter, you could put huge stresses into the gearbox.
I can't imagine why you would want Tq limiter other than for OEI training, but I am aware that some people do use it as a routine. Doh!
It doesn't disengage if you are AEO. The Nr just keeps on drooping.
The Tq limiter is designed for use when OEI training. If you screw up and droop the Nr too low, the OEI training switch kicks back automatically to the centre, and bang! you have full power very quickly. Without the torque limiter, you could put huge stresses into the gearbox.
I can't imagine why you would want Tq limiter other than for OEI training, but I am aware that some people do use it as a routine. Doh!
Dangermouse,
It doesn't disengage if you are AEO. The Nr just keeps on drooping.
The Tq limiter is designed for use when OEI training. If you screw up and droop the Nr too low, the OEI training switch kicks back automatically to the centre, and bang! you have full power very quickly. Without the torque limiter, you could put huge stresses into the gearbox.
I can't imagine why you would want Tq limiter other than for OEI training, but I am aware that some people do use it as a routine. Doh!
It doesn't disengage if you are AEO. The Nr just keeps on drooping.
The Tq limiter is designed for use when OEI training. If you screw up and droop the Nr too low, the OEI training switch kicks back automatically to the centre, and bang! you have full power very quickly. Without the torque limiter, you could put huge stresses into the gearbox.
I can't imagine why you would want Tq limiter other than for OEI training, but I am aware that some people do use it as a routine. Doh!