rodrop Posted March 22, 2009 Report Share Posted March 22, 2009 STAR System (Start-up overspeed limiter, Automatic rotor engagement, Low-rotor RPM warning) I'm wondering if anyone can elaborate on this STAR System. My CFI mentioned it, I looked it up. I can guess some of it.. but would like to get more indepth information, expecially about the overspeed limiter... Is it exclusive to Schweizer 300cbi or do other helicopters have it too etc? Quote Link to comment Share on other sites More sharing options...
500E Posted March 22, 2009 Report Share Posted March 22, 2009 The Schweizer 300CBi received FAA certification in 2002 as an enhanced version of the company's 300CB. Since then, the 300CBi has become the training helicopter of choice due to its excellent flight handling characteristics, impressive safety record and a number of improvements. These improvements include a fuel injected engine, overhaul/retirement components with time/life limits not less than 4000 hours and Schweizer's STAR system which includes a start-up over speed limiter, automatic rotor engagement and a low rotor RPM warning device. Combined, these features and enhancements provide simplified operating procedures, competitive operating costs and further safety advancements. Quote Link to comment Share on other sites More sharing options...
apiaguy Posted March 22, 2009 Report Share Posted March 22, 2009 the "overspeed limiter" is just shorting out the mags so the pilot doesn't damage the lower pulley coupling drive shaft by having the throttle open too much when starting the engine and the engine quickly revving over 2000 rpm while the belt drive is disengaged. Quote Link to comment Share on other sites More sharing options...
rodrop Posted March 23, 2009 Author Report Share Posted March 23, 2009 Thanks for the information. I appreciate it. Quote Link to comment Share on other sites More sharing options...
jehh Posted June 8, 2009 Report Share Posted June 8, 2009 There is a procedure to test it... Start up the helicopter normally, then slowly roll the throttle up past 1,800 RPM. At that point the limiter should engage and the RPM gauge will be... dramatic.... Before you get all worried, have someone else do this while you stand outside the helicopter. The gauge is jumping like crazy, the engine is not. But don't leave it there forever, it can't be good for it. It has saved more than one HIO-306-G1A engine in the past few years... *knock on wood* Quote Link to comment Share on other sites More sharing options...
rodrop Posted June 9, 2009 Author Report Share Posted June 9, 2009 Thanks for the information. So, if someone forgets to engage the clutch and starts increasing the RPM to 2700, they have a chance to recover... (but still should use the checklist so this does not happen).?? Quote Link to comment Share on other sites More sharing options...
jehh Posted June 10, 2009 Report Share Posted June 10, 2009 A bigger issue is pilots having the throttle open when starting the engine, it is very hard to catch if you do this, and easy to do a lot of damage to the engine really quick... Quote Link to comment Share on other sites More sharing options...
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