Scale RC Helicopters Discuss scale helis, and modifications to pod and boom helis that make them scale.

AirStar Hughes 500e with JetCat PHT3 - problem with rotor speed sagging.

Reply
Old 06-16-2014, 11:42 PM
  #1
Springbok Flyer
Thread Starter
 
Springbok Flyer's Avatar
 
Join Date: Jun 2006
Location: Gold Coast, Queensland, AUSTRALIA
Posts: 972
Cool AirStar Hughes 500e with JetCat PHT3 - problem with rotor speed sagging.

Hi guys,

I was flying my big Hughes this morning and suffered what I thought was a power loss. After landing safely I realised that the rotor speed was simply not as high as it should be. The turbine was still running within and upto all the limits, so it was just the rotor not getting up to speed. After a close look I found the clutch bell was slipping on the pinion gear shaft (this is the pinion and shaft that runs on the main gear). I tightened this and was confident that the problem had been solved. Alas, it did not - so whilst the clutch bell may have been slipping, it was not the main cause.

I have checked the one way bearings on the main gear/main shaft - all is good. All the pully's with the tooth belts are running freely without any friction. I have not taken the clutch assembly apart and is hoping that I don't have to.

Anyone with any ideas?

Jan
Springbok Flyer is offline  
Reply With Quote
Old 06-18-2014, 07:37 AM
  #2
rotordoc1
 
Join Date: Apr 2009
Location: Spuzum, BC, CANADA
Posts: 243
Default

I would suggest that you try asking in a special turbine held forum such as this one on Heli Freaks:

http://helifreak.com/forumdisplay.php?f=54
rotordoc1 is offline  
Reply With Quote
Old 06-18-2014, 01:31 PM
  #3
Springbok Flyer
Thread Starter
 
Springbok Flyer's Avatar
 
Join Date: Jun 2006
Location: Gold Coast, Queensland, AUSTRALIA
Posts: 972
Default

Thanks for the link.
Springbok Flyer is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 07:56 AM.