Overcome anticlockwise and clockwise motion of Honda-GX120
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Re: Overcome anticlockwise and clockwise motion of Honda-GX120
Re: Overcome anticlockwise and clockwise motion of Honda-GX120 -- materialboy	Post Reply	Top of thread	Forum

Posted by: Kelly Bramble ® 04/01/2007, 21:05:58 Author Profile eMail author Edit

The challenge you have is torque. Helicopters have a tail rotor for direction control and anti-torque. Some helicopters use counter rotating rotors to compensate for the torque. You will need add counter torque some how. Change the direction of one of the aifoils or include a anti-torque rotor. Modified by Kelly Bramble at Sun, Apr 01, 2007, 21:06:45

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Re: Re: Overcome anticlockwise and clockwise motion of Honda-GX120
Re: Re: Overcome anticlockwise and clockwise motion of Honda-GX120 -- Kelly Bramble	Post Reply	Top of thread	Forum

Posted by: randykimball ® 04/01/2007, 23:51:14 Author Profile eMail author Edit

I absolutely agree with Kelly. One current way to counter this torque is to vector off a nozzel jet in an adjusted direction and/or size from the main presure chamber. The worst suggestion of your lifetime may be the catalyst to the grandest idea of the century, never let suggestions go unsaid nor fail to listen to them.

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Re: Re: Re: Overcome anticlockwise and clockwise motion of Honda-GX120
Re: Re: Re: Overcome anticlockwise and clockwise motion of Honda-GX120 -- randykimball	Post Reply	Top of thread	Forum

Posted by: materialboy ® 04/02/2007, 06:14:11 Author Profile eMail author Edit

Thanks Kelly and Randy, But you got the picture entirely wrong - Hovercraft not Helicopter, it might be my discription. However, Torque = radius * Force or Torque = Power/ ang. speed. Do you really think Torque is the factor causing Honda- Gx-120, to start clockwise or anticlockwise.

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Re: Re: Re: Re: Overcome anticlockwise and clockwise motion of Honda-GX120
Re: Re: Re: Re: Overcome anticlockwise and clockwise motion of Honda-GX120 -- materialboy	Post Reply	Top of thread	Forum

Posted by: Bruiser ® 04/02/2007, 11:43:04 Author Profile eMail author Edit

I get what you mean - two identical motors will both run in the same direction. The obvious (and obviously impossible) solution is to tip one upside down. Some motors can run in reverse direction, but to the best of my knowledge there are a couple of things - timing chain tensioning, cam lobe machining that prevent this. I don't know what a v-chain is? Maybe the 'obviously impossible' is not so impossible. Assuming you're driving fans, you could top-mount one, if you have space to do so.

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Re: Re: Re: Re: Overcome anticlockwise and clockwise motion of Honda-GX120
Re: Re: Re: Re: Overcome anticlockwise and clockwise motion of Honda-GX120 -- materialboy	Post Reply	Top of thread	Forum

Posted by: Kelly Bramble ® 04/02/2007, 08:46:06 Author Profile eMail author Edit

If you have a spinning mass, yes torque is a design issue. The engine, hover blade or fan - what ever... Go out to your car and rev the engine. Notice which way the car tilts (right) during reving and high rpm. If you did not have wheels on the ground the car would spin. I'm sure you do NOT need to change the rotation of the engine, however changing the rotation on one of the hover fans or propellers would go a long way in minimizing the torque effect and allowing flight without spinning the whole craft. - Basic physics... Modified by Kelly Bramble at Mon, Apr 02, 2007, 08:47:15

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Re: Re: Re: Re: Re: Overcome anticlockwise and clockwise motion of Honda-GX120
Re: Re: Re: Re: Re: Overcome anticlockwise and clockwise motion of Honda-GX120 -- Kelly Bramble	Post Reply	Top of thread	Forum

Posted by: randykimball ® 04/02/2007, 13:47:04 Author Profile eMail author Edit

I understood hoover craft well. A vectored nozzel is a good way to handle anti-torque as well as directional vectoring, am I right? This concept could also be used to improve on the problem hoover craft have stopping and over running in a sweep (turn). The worst suggestion of your lifetime may be the catalyst to the grandest idea of the century, never let suggestions go unsaid nor fail to listen to them. Modified by randykimball at Mon, Apr 02, 2007, 13:48:14

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Re: Re: Re: Re: Re: Re: Overcome anticlockwise and clockwise motion of Honda-GX120
Re: Re: Re: Re: Re: Re: Overcome anticlockwise and clockwise motion of Honda-GX120 -- randykimball	Post Reply	Top of thread	Forum

Posted by: materialboy ® 04/02/2007, 14:08:37 Author Profile eMail author Edit

Vectored Nozzle ...how will that fix the problem of making Two Adjacent Engine Running Together in the same direction ... Attach is the diag for reference https://upload.wikimedia.org/wikipedia/commons/thumb/4/42/Keilriemen-V-Belt.png/638px-Keilriemen-V-Belt.png just that instead of belt it is chain and the bottom two gears are connected with engine. Thanks for sharing your interest- Gals

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