My 2100 was built in the early 80's ( passed around the country )and I bought it in 96 and had it flying in 6399U in 2001. That being said Revmaster recommends a 3200 rpm cruise but I've pushed it to 3400 on occasion but not often. I have a 3100 static RPM and always take off and climb at full throttle. I repitched the prop last year from 54/50 to 54/48 and got a much better climb but lost about 7 mph in cruise. I plan to buy another 54/50 so I have a better cruise prop.
Good Luck Kenny 6399U Kutztown, Pa -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf Of Dave Dunwoodie Sent: Tuesday, March 01, 2011 6:55 PM To: kr...@mylist.net Subject: KR> Revmaster and Warp Drive Hi again everyone, I have more questions! Revmaster hasn't responded to my questions, but Warp Drive has. So I'm making a little progress! Here's a brief history. The airplane is a standard KR2 with spring gear and brakes. Beyond those changes, it appears to be plans-built. It is fitted with a Revmaster 2100D and a Warp Drive 3-blade prop, square tip, 52" diameter. I am soliciting suggested RPM settings, pitch settings, etc. I note that the Revmaster charts stop at around 3300 RPM, but that the curve is still rising at that 80HP point. Daryl at Warp Drive suggested that I should be looking at perhaps 3500-3600 RPM ??? He said that if I want to "slow it down" to 3000 RPM, some pitch adjustments might be appropriate. So I guess I'll ask for the simple information now, and then the detailed stuff later! What would be the redline for the 2100D ? What would be the best takeoff RPM setting ? What would be the best cruise RPM ? (And dozens more questions like that)... On the prop, what would be the best pitch, at least to start from ? Has anybody worked climb against cruise performance and developed some suggestions for pitch settings ? Any information and/or suggestions for this engine/prop combo would be most appreciated. The aircraft has 118 hours logged with this combo, but very little performance data is documented. The original tachometer had the redline at 3500 RPM, however Warp Drive is suggesting the 3500-3600 range for normal operations, so I'm wondering now. I am trying to develop a POH and also determine some do-not-exceed markings, etc., so any experience in these areas would really help. Thanks, Dave. _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
