I've been advised before, that one rule of thumb, is for ever inch in dia or pitch increase/decrease will yield 100 rpm. So being that your starting with 52 in the only adjustment would seem to be pitch. 10x100 = 1000 so that would yield a 38 inch pitch. If your looking at static rpm the 10 inch reduction maybe to much of a reduction as the prop will unload as the aircraft accelerates generally 200 rpm or so.
Rick Human Houston, Texas ----- Original Message ----- From: "Eric Evezard" <bonza...@netactive.co.za> To: "KR News" <kr...@mylist.net> Sent: Monday, May 07, 2007 9:13 AM Subject: KR> Pitch/Revs. > Hi Netters, > I cant find a formula to calculate the prop pitch/rev relationship.For example if a certain engine gives 2000 rpm with 52d/48p at max .what reduction in pitch will give 3000 rpm. ? > > best regards, > Eric, > South Africa. > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > Post photos, introductions, and For Sale items to http://www.kr2forum.com/phpBB2/index.php > please see other KRnet info at http://www.krnet.org/info.html