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IDLE RPM

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Bill Vincent

Joined: 30 Jan 2006
Posts: 84

Posted: Wed Feb 27, 2008 5:43 pm Post subject: IDLE RPM

Hi Gary

 My 503 idles on the ground somewhere around 2,200  rpms. 

 What it idles at when I am landing I have no idea;  because during the landing I seldom look at the gauges.( I am too busy  looking for deer 

 Bill Vincent

 FS II

 Upper Peninsula of Michigan

 Do Not Archive

  

 http://www.youtube.com/watch?v=fxpm72IIDPM

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_________________
Bill Vincent
Firestar II
Upper Peninsula of Michigan

gaman(at)att.net
Guest

Posted: Fri Feb 29, 2008 5:56 pm Post subject: IDLE RPM

Bill,

2500 was recommended when my firestar was first launched in 99.I kept balancing the carbs and reducing the rpm until I settled on 1750 rpm warm idle.Cold it actually runs above that,but after it's warm it holds steady and pretty smooth at 1750,with just a little rattle out of the gearbox .I have an after muffler on it so it's quiet at idle.You will not believe the difference in landing  once you get used to the drag from  the prop on approach and flare.I have flown it for 550 hours idling at that speed, the engine never, NEVER stalled and regular gearbox oil changes at about 75 hrs with no fuzz on the magnet.I did have an IVO 3 blade which probably helped keep it smooth. Roy Johnsen down in O'Brien Fl  has it now and I'm flying the Mk-3.My personal opinion,the FS is the most nimble and fun to fly of the Kolb stable. Nice videos! Thanx,G. Aman



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