Problems: - Weight - Single ignition - Carburation\Fuels systems is not designed for aviation - Cost - BMW stuff is expensive (in Australia anyway) and spare parts are even more expensive :-) - Redrive weight and cost and re-engineering
Plusses: - I don't see any That's my opinion, for what it's worth - maybe 2 cents Regards Barry Kruyssen Cairns, Australia k...@bigpond.com http://www.users.bigpond.com/kr2/kr2.htm -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf Of James Wester Sent: Monday, 15 May 2006 7:54 AM To: kr...@mailinglists.org Cc: KRnet Subject: KR> BMW BOXER ( candidate ? ) Hey folks .James here . Been a lurker for several years now .Haven't surfaced for three or four of them ! I've been sitting on the fence " forever " with regards to power plant selection for the KR . Like every one else , I've watched all types of venders, ideas and trends come , and then go ! About the mid nineties , Hans Mayer ( Contact # 45 , RAA rec flyer May 1996 ) was suggesting the BMW boxer engine with one of his custom belt drives . Heck if I was going to disagree with Hans( !!? ) - but it did seem like quite a stretch . Anyway Hans went on to explain that the KR only needed 18 horses to maintain altitude .( whoa ) Can any one explain this ? Did he mean the KR-1 , or the original KR-2 - at just over 500 lbs ? So why the interest in just two jugs now ? Over the years I've noted that even the most potent F/F installations usually don't result in cruise speeds of much more than 130 to 140 knots ! Mark Langford , ( and every one else ) feel free to jump all over this one ! Now the new R1200S has a claimed 122 hp , and 83 lb-ft with efi .Two thirds of that hp is plenty , and as for the so-so torque - I can think of three different redrives that should fix that ! I do see the potential for more leeway regarding ducting , w / b ....maybe this is worth another look ? _______________________________________
