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grant4ever Certificates/Ratings/Crew Stations: "More prop talk! More prop questions." 07-10-03, 21:40z  Group, Ok, flew again today. This time I payed attention to a few things. For starters, a full throttle climb requires me to hold 85 mph indicated to not exceed 2700 rpm. Straight and level flight is 1/3 to 3/8 throttle to maintain 2700 rpm. Full throttle will get me 3100 to 3150 rpm. I think that I may be underpropped. I think that with the engines ability to overrev so easily that I am flying around with the throttle way back and not making any real HP. Of course my gas mileage is great but I would rather get more performance out of the Pitts! What do you think? Gus Alert Edit | Reply | Reply With Quote | Top

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Subject      Author      Message Date     ID      RE: More prop talk! More prop ques... KendalSimpson 07-11-03 1   RE: More prop talk! More prop ques... Patty_Wagstaff 07-12-03 2    RE: More prop talk! More prop ques... grant4ever 07-12-03 3

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KendalSimpson Certificates/Ratings/Crew Stations: 1. "RE: More prop talk! More prop questions." 07-11-03, 19:22z  Yea Gus I think you hit the nail on the head. Level flight at full throttle should not give you red-line or over with a metal fixed pitch prop. I couldn't recomend what prop pitch/length you need but definately one that is more course or longer that what your turning now. Kendal Simpson www.littletootaerobatics.com Remove | Alert Edit | Reply | Reply With Quote | Top

Patty_Wagstaff Certificates/Ratings/Crew Stations: 2. "RE: More prop talk! More prop questions." 07-12-03, 14:30z  Hey Gus I presume you're flying a Pitts? The numbers you give don't sound that out of line to me. I'd check with the Prop experts - not sure who makes your prop - and ask them what they think too. But, from first glance at your e-mail the numbers sound good. Patty Remove | Alert Edit | Reply | Reply With Quote | Top

grant4ever Certificates/Ratings/Crew Stations: 3. "RE: More prop talk! More prop questions." 07-12-03, 23:08z  Patty, Yes, its a Pitts S1S. I'm asking as many people as possible. I am looking for real world experience as well as what the manufacturers have to say. I am convinced though that I'm turning too many rpm too easily. To keep my rpm down to 2700 I have the throttle retarded so far that I am not making any real HP. I think that a higher pitched prop will let me carry more power and still keep the revs down to 2700 rpm. I got to say, I flew a couple of loops the other day at full throttle (3100 rpm) and they were huge. They felt better too. I guess the bottom line is that it would just be nice to go to full throttle and get 27 to 2900 rpm while making the full 180 hp that I have bolted on up front. Gus Remove | Alert Edit | Reply | Reply With Quote | Top

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