Good Stuff Guys.
I'll change the title to "In Service to Your Country" if that will get some of our not US Bangshifters in here.
I still work for the USAF so I'm still "in service" I guess.
In the Dumb catagory this came up about 5 years ago and got the "factory" involved.
The USAF T6 I work on is a Turbo Prop. It has a turbine engine that drives the propeller through air pressure off the back of the engine. The "shafts" are not conected air drives the prop,like a torque converter in an auto trans. Because of this the engine can run and the prop not turn if it is being held by something like the propeller covers on bungys,or hand(!). The Factory got involved because somehow they sort of "own" the planes engeering wise so they get to answer all the dumb questions. What happened was a pilot failed to do a proper walk around preflight and didn't remove the prop covers and started the engine. Had it running and up to speed and the prop was not turning! Shut it down then the fun started,what do we do now? Did we hurt it? What happened? Basicly nobody could say one way or another because who runs the engine with the prop held? It ends up Pratt and Witney does and it's ok,everything is pressure lubed and fine. They then let us know they do a torque test prior to shipment of the engines by restaining the prop shaft. No big deal.
Then the bomb shell, a video of a P&W guy HOLDING a prop with the engine screeming! Just dont let go it spools up right now!
I'll change the title to "In Service to Your Country" if that will get some of our not US Bangshifters in here.
I still work for the USAF so I'm still "in service" I guess.
In the Dumb catagory this came up about 5 years ago and got the "factory" involved.
The USAF T6 I work on is a Turbo Prop. It has a turbine engine that drives the propeller through air pressure off the back of the engine. The "shafts" are not conected air drives the prop,like a torque converter in an auto trans. Because of this the engine can run and the prop not turn if it is being held by something like the propeller covers on bungys,or hand(!). The Factory got involved because somehow they sort of "own" the planes engeering wise so they get to answer all the dumb questions. What happened was a pilot failed to do a proper walk around preflight and didn't remove the prop covers and started the engine. Had it running and up to speed and the prop was not turning! Shut it down then the fun started,what do we do now? Did we hurt it? What happened? Basicly nobody could say one way or another because who runs the engine with the prop held? It ends up Pratt and Witney does and it's ok,everything is pressure lubed and fine. They then let us know they do a torque test prior to shipment of the engines by restaining the prop shaft. No big deal.
Then the bomb shell, a video of a P&W guy HOLDING a prop with the engine screeming! Just dont let go it spools up right now!
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