A little engine help
Thread Starter
Joined: Oct 2006
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From: 51°31′10″N, 02°35′27″W. EGTG
A little engine help
Hey All. I have been working through some information today about the Jetstreem for a research project on small aircraft used in a 3rd world country. Not so sure any jetstreems are but i have a few questions about the engines.
Why does the left engine turn clockwise and the right anticlockwise, and why is the reduction gear higher on the left that the right?
Sure most multi props are like this? but it would be of help if anyone can offer some input on this matter.
Thanks for any help...
Why does the left engine turn clockwise and the right anticlockwise, and why is the reduction gear higher on the left that the right?
Sure most multi props are like this? but it would be of help if anyone can offer some input on this matter.
Thanks for any help...
Joined: Feb 2006
Aviation Qualifications: LAME
Posts: 36,138
Likes: 5,738
From: Falling off the end of the thread
Hey All. I have been working through some information today about the Jetstreem for a research project on small aircraft used in a 3rd world country. Not so sure any jetstreems are but i have a few questions about the engines.
Why does the left engine turn clockwise and the right anticlockwise, and why is the reduction gear higher on the left that the right?
Sure most multi props are like this? but it would be of help if anyone can offer some input on this matter.
Thanks for any help...
Why does the left engine turn clockwise and the right anticlockwise, and why is the reduction gear higher on the left that the right?
Sure most multi props are like this? but it would be of help if anyone can offer some input on this matter.
Thanks for any help...
Avoid imitations
Joined: Nov 2000
Aviation Qualifications: ATPL
Posts: 15,112
Likes: 1,086
From: Wandering the FIR and cyberspace often at highly unsociable times
I'm not familiar with this type of aircraft but presumably, the engines (Astazou?) actually turn in the same direction; only the props turn in opposite directions.
The gearing system needs to be arranged differently to allow a rotational direction change.
The gearing system needs to be arranged differently to allow a rotational direction change.
Joined: Jun 2006
Posts: 81
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From: vancouver
Hey All. I have been working through some information today about the Jetstreem for a research project on small aircraft used in a 3rd world country. Not so sure any jetstreems are but i have a few questions about the engines.
Why does the left engine turn clockwise and the right anticlockwise, and why is the reduction gear higher on the left that the right?
Sure most multi props are like this? but it would be of help if anyone can offer some input on this matter.
Thanks for any help...
Why does the left engine turn clockwise and the right anticlockwise, and why is the reduction gear higher on the left that the right?
Sure most multi props are like this? but it would be of help if anyone can offer some input on this matter.
Thanks for any help...
Joined: Feb 2005
Posts: 4,581
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From: flyover country USA
Here's a bit of visual aid about what happens when both props turn the same direction.
However, if both props turn inboard, the problem of "critical engine" is null and void.
However, if both props turn inboard, the problem of "critical engine" is null and void.
Joined: Mar 2006
Posts: 153
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From: Herefordshire
There is also the paddle wheel effect, although not very important. With the engines rotating in the same direction the aircraft will 'paddle' itself sideways as it goes along. A small problem to consider when using dead reakoning navigation.
