PT-6 question
03-25-2013, 04:01 PM
#1
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Joined APC: Oct 2006
Posts: 650
PT-6 question
This probably should go in the tech section but I figured it would get more traffic here.
For anyone with PT-6 knowledge, how long after a normal shut down do you need to wait to restart the engine? I have looked in the POH for the aircraft I fly but there isn't anything in there. Our company policy is 20 minutes but I am wondering if anyone has anything official so to speak on this.
For anyone with PT-6 knowledge, how long after a normal shut down do you need to wait to restart the engine? I have looked in the POH for the aircraft I fly but there isn't anything in there. Our company policy is 20 minutes but I am wondering if anyone has anything official so to speak on this.
03-25-2013, 04:22 PM
#3
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never heard of it. my practice is make sure (say you shut left one down on ramp then plan to restart it asap) the engine is completely shut down, dead, down, then restart it. But as far as "minimum time" etc rules, never heard of it
I have 4000 HRS in B-350 King Air
I have 4000 HRS in B-350 King Air
03-25-2013, 04:26 PM
#4
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Thanks for the replies. I didn't think that there was a need for it as I remember in my navy days we shut them down and started back up without any time limit. I was just wanting to find something in writing to show my owner. I would think if there really was a need for it to cool or something, then it would say in the POH "do not start for XXX amount of time after shut down"
03-25-2013, 05:01 PM
#7
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Originally Posted by Duksrule
Plainsman, any reference for that? I agree with everyone else just looking to get in in writing to prove the point.
"no minimum time between engine shutdown and restart exists in the POH"
03-25-2013, 05:09 PM
#8
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Position: 737 FO
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There are starting cycle limitations for the PT-6 but as far as a waiting period after shutdown I've never heard of that.
As for the starting cycle limitations:
Airplane battery power is:
30 seconds ON - 60 seconds OFF
30 seconds ON - 60 seconds OFF
30 seconds ON - 30 minutes OFF
Repeat above
External power is:
20 seconds ON - 120 seconds OFF
20 seconds ON - 120 seconds OFF
20 seconds ON - 60 minutes OFF
Repeat above
As for the starting cycle limitations:
Airplane battery power is:
30 seconds ON - 60 seconds OFF
30 seconds ON - 60 seconds OFF
30 seconds ON - 30 minutes OFF
Repeat above
External power is:
20 seconds ON - 120 seconds OFF
20 seconds ON - 120 seconds OFF
20 seconds ON - 60 minutes OFF
Repeat above
03-25-2013, 05:12 PM
#9
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Joined APC: Nov 2012
Position: 737 FO
Posts: 880
Originally Posted by Duksrule
Plainsman, any reference for that? I agree with everyone else just looking to get in in writing to prove the point.
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