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HelicopterMiniature Aircraft Whiplash & Fury 55 › tempest head damper life
06-05-2004 08:17 AM  13 years agoPost 1
Paul Woodcock

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Dubai - United Arab Emirates

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Hi guys

I have just rebuilt my Tempest after the clutch liner fell out....

The liner glue let go and the liner slowly worked down untill it was rubbing on the ali bearing block between the clutch and motor drive. It did no damage to the heli, but I thought it was time for a new liner as glueing it in and machineing it round again rould make it under spec. and it had worn 1.5mm off it's "height" and might slip...

New liner and new bearings through most of the machine. It flies much better...No screaming of the clutch on the ali block...

In idle 1 and 2 it is perfect but in hover it has a wobble. The set up is a bit off what it used to be before the rebuild. The hover rpm is 1520rpm now. The wobble is a left and right slow wobble of the skids centered about the main head. As soon as i add a bit of power and climb or click to idle 1 or 2 it goes away. Before the rebuild I could hover at 1400 to 1600 rpm with no wobble.

Could the head dampers be worn. It just seems funny to suddenly start after a rebuild.....

The machine ( tempest 3D ) has only about 60 flights. and has 70d dampers with a 0,50mm and a 0,25mm shim.

Help please guys

Paul

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06-06-2004 06:11 PM  13 years agoPost 2
Paul Woodcock

rrElite Veteran

Dubai - United Arab Emirates

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Don't worry guys

The friend using my sky tach was not getting accurate readings....200-300rpm out...I should have known better with the feel and sound, but have been flying my R50 quite a lot while the Tempest has been down.

Also needed some needle valve setting. Dampers can't go u/s while not in use....

Thanks

Paul

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HelicopterMiniature Aircraft Whiplash & Fury 55 › tempest head damper life
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