Not planning to have a header tank, just a tank in each wing. The back up battery is a good idea too. I'm planning to implement that in my plane.
On Sat, Feb 8, 2014 at 4:35 PM, Larry&Sallie Flesner <flesner at frontier.com>wrote: > At 09:14 AM 2/8/2014, you wrote: > >> I'm going to opt for a GPASC flywheel drive engine on my >> KR2. So the question is, mechanical pump or electric. I'm thinking >> using >> electric pumps instead of the mechanical for the ability to have a backup >> pump. >> > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > Will you have a header tank with gravity feed? If so, you really only > need an electric pump for backup and perhaps takeoff and landing when head > pressure may be less than optimum. A pressure regulator may be in order > also, depending on the pump selected. > > I have outer wing tanks only, no engine pump on my 0-200 and use two > electric pumps, in parallel, with a pressure regulator set to 4 1/2 pounds. > With that type of setup you really need a backup system. I use a small 4 > AH battery with separate buss, switches, and electrical isolation. I > needed my backup at 10 hours into testing when I lost my main electrical > buss. A simple flip of the switch and the engine never sputtered. I can > pump from either tank with either or both pumps. I can also flip a switch > and charge the backup battery in flight. My setup has served me well for > 500 hours now and saved my bacon when I needed it. > > Further details if desired........... > > Larry Flesner > > > _______________________________________________ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options >
