Craig, yes they have. Search the archives. Spin recovery with the extra weight on the tips versus rudder effectiveness, aileron effectiveness in lifting the tip at low airspeeds and fuel lift from the lower tank in an unbalanced steep turn are two issues to think hard about. Also if you drop a wing on landing the tip is the last place you want leaks and sparks. You can get well over 100 litres in the standard KR tank plus stub tanks and the inner part of the outer wing between spars. That's 4 to 5 hours flying depending on your engine size..why go to tip tanks??
John Martindale 29 Jane Circuit Toormina NSW 2452 AUSTRALIA ph: 61 2 6658 4767 mobile: 0403 432179 email: john_martind...@bigpond.com _____ From: krnet-bounces+john_martindale=bigpond....@mylist.net [mailto:krnet-bounces+john_martindale=bigpond....@mylist.net] On Behalf Of Craig Williams Sent: Monday, 25 October 2010 1:03 PM To: kr...@mylist.net Subject: KR> outboard wing tanks Still thinking about fuel tanks. I have seen at least 3 KR's in South Africa with tip tanks. It's a thought but I was looking at my RAF48 skins and wondered if anyone has used the wing outboard of the spars to create an internal tank. My rough calc puts the volume at 10 gallons. Craig www.kr2seafury.com _______________________________________ 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 _____ No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1144 / Virus Database: 422/3217 - Release Date: 10/24/10