When I spoke to Troy a few days ago I asked basically the same question. He really didn't know, but he said that the new wing was definitely a lot less drag. He could easily tell in a power off dive that he picked up speed a lot faster.
Some other notes: He shortened the wing about 2'. The empty weight also went up due to the engine change. His stall speed increased about 5 Kts, but he suspects that is due to the weight and the shorter wing, not the airfoil change. He only has 1 degree incidence. He said it stalls fine and doesn't tend to drop a wing unless he has some power in. He has not spun it. One other interresting thing he said was that he didn't have a good climb rate until he put on the bottom aileron gap seals like Mark details on the new wing site. He recommends not even doing any flight testing without the bottom seals installed. His weight is 620 empty and he has had 440 pounds of people plus fuel in it. I think he said he weighs around 220, so his high cruise speeds are probably around 900 pounds or more with just him and fuel. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of jehayw...@aol.com Sent: Sunday, May 02, 2004 10:02 PM To: kr...@mylist.net Subject: Re: KR> KR2S Specs - thanks In a message dated 5/2/04 4:34:58 PM Mountain Daylight Time, n5...@hiwaay.net writes: << Troy's wouldn't break 200 mph with the VW engine and the old wing. The higher speeds came about after adding the new airfoil and the 0-200. >> Any rough idea of how much was contributed by each one? Jim Hayward Rapid City, SD _______________________________________ to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
