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"Racking up the hours and loving eve..."

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TomParsons[Guest]

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1. "RE: Racking up the hours and loving..."
07-07-03, 17:39z 

Gus-
Glad to hear you're having fun!

My airplane is similar in some ways to yours (fairly light S-1S with a ~190 HP AEIO-360 in my case). I don't happen to know my prop's pitch off the top of my head (I'll check when I get home later), but I do know it's set a bit coarser than an optimum cruise pitch would be. So I don't have as much of a problem as it sounds like you're having on climbout. I tend to climb at more like 110-120 mph, at full throttle, and I am not exceeding redline. So it sure sounds like you would benefit from a coarser prop pitch.

What airspeed are you cruising at? In my case, I think I'll cruise at about 145 mph indicated, at 2700 rpm (2500 MSL).

As far as acro is concerned, I asked lots of questions about rpm management during acro before trying it in my S, and have decided to set my personal "acro redline" at around 3000 - 3100 rpm. I'm told by several experienced pilots that you do no particular extra damage to the engine by running that high, except that the tach hours wind away faster! Also, you don't get much extra thrust once you go above 3000 anyway- just extra noise. But for my prop, that rpm level lets me pretty much set the throttle to the stop and forget about it during a sequence. At full throttle, I end up having to just barely descend, giving up just 100-200 feet, to get to looping speed of 160 mph and 3000 rpm.

Again, I'll post again after I get home and look up my prop specs. Hope this helps!

Tom P.

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Table of Contents
  Subject      Author      Message Date     ID   
  Racking up the hours and loving eve...    grant4ever      07-07-03       
     RE: Racking up the hours and loving...    TomParsons[Guest]      07-07-03      1   
        RE: Racking up the hours and loving...   grant4ever[Guest]      07-08-03      2   
     RE: Racking up the hours and loving...   TomParsons[Guest]      07-08-03      3   
        RE: Racking up the hours and loving...   grant4ever[Guest]      07-08-03      4   

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