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Old 04-24-2012 | 06:32 AM
  #11  
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We also do single engine turns on the emb-120 even when the apu works. It just saves time on the ground.
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Old 04-24-2012 | 06:40 AM
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We used to do them at Colgan all the time. Then someone threw a fit and decided they were only safe if a GPU wasn't available at the out station. I do like the places with a jet bridge that will you spin #2 while boarding to heat up or cool down the plane.
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Old 04-24-2012 | 08:13 AM
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At eagle during boarding we would fire up #2 if it was hot when the service door was closed, the ATR rear baggage compartments are on the right side so we always had to wait untill all bags were loaded unless the rampers woul load the checked bags on the forward baggage compartment (loaded from the left side! We also did it during days when the aircart was not working. Remember that a lot of stress is put on the engine during starts, so the fuel burned during a quick turn is worth it long run when you take into accounts cycles onthe engines!
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Old 04-24-2012 | 10:24 AM
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Originally Posted by What
At eagle during boarding we would fire up #2 if it was hot when the service door was closed, the ATR rear baggage compartments are on the right side so we always had to wait untill all bags were loaded unless the rampers woul load the checked bags on the forward baggage compartment (loaded from the left side! We also did it during days when the aircart was not working. Remember that a lot of stress is put on the engine during starts, so the fuel burned during a quick turn is worth it long run when you take into accounts cycles onthe engines!

What was nice about the ATR was the "hotel" mode, especially on a cold day. Rampers even liked it because they had warm air blowing on them when loading the aft. I always wondered if any other non-APU turboprops had that feature.
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Old 04-24-2012 | 10:28 AM
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Originally Posted by InvertedLoop
I had a question about turbo props and boarding. Today I saw Lakes come into local airport and leave number two engine running while deplaneing and boarding. I was wondering if this is normal at smaller airports. It seems like it could be a safety issue.

Like others have said, it's pretty common especially on a tight turn. Back in my 1900 days, it did make me a bit nervous that a toddler might break free of the parents and run right under the plane to the other side.
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Old 04-24-2012 | 10:39 AM
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Originally Posted by Quint
What was nice about the ATR was the "hotel" mode, especially on a cold day. Rampers even liked it because they had warm air blowing on them when loading the aft. I always wondered if any other non-APU turboprops had that feature.
It was an option on the Saab a "prop brake." It ran off of the hydraulic system. From what I've heard very few people actually bought the option. Don't know if it was a cost issue, or a safety issue. Colgan has none.
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Old 04-24-2012 | 01:54 PM
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Originally Posted by Quint
Like others have said, it's pretty common especially on a tight turn. Back in my 1900 days, it did make me a bit nervous that a toddler might break free of the parents and run right under the plane to the other side.
Yeah I always watched kids extra close. Even older ones. The worst time was when they had toys in their hands because if they dropped the toy they would chase it no matter where it went. I had to grab a kid once. Toy dropped and bounced forward but I wasn't sure where it was going to stop and he darted after it so I grabbed his shirt and the parent got the toy.

I cant remember if Beech offered an optional prop brake (doubtful since running in feather would melt the windows) but they did claim that if you held the prop by hand during the start you could keep it from moving as long as it was at idle power...just don't let go.
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Old 04-24-2012 | 02:41 PM
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Originally Posted by Great Cornholio
Yeah I always watched kids extra close. Even older ones. The worst time was when they had toys in their hands because if they dropped the toy they would chase it no matter where it went. I had to grab a kid once. Toy dropped and bounced forward but I wasn't sure where it was going to stop and he darted after it so I grabbed his shirt and the parent got the toy.

I cant remember if Beech offered an optional prop brake (doubtful since running in feather would melt the windows) but they did claim that if you held the prop by hand during the start you could keep it from moving as long as it was at idle power...just don't let go.
yup, it's called a free turbine!
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Old 04-24-2012 | 04:40 PM
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Originally Posted by v1valarob
We used to do them at Colgan all the time. Then someone threw a fit and decided they were only safe if a GPU wasn't available at the out station. I do like the places with a jet bridge that will you spin #2 while boarding to heat up or cool down the plane.
Thanks because Mike Crook became the new safety guy and at his last airline, he had seen a ramper walk into a spinning prop during a single engine turn. So like that, poof they are gone. Gone unless it suits the companys needs (no GPU, EXT PWR is broke etc...)
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Old 04-24-2012 | 05:30 PM
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Originally Posted by What
yup, it's called a free turbine!
Yeah that is why it would work. I have never seen anyone brave/dumb enough to give it a shot.

I wonder if there is any data out there about how much force it would take to keep the prop from moving at idle power.
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