The standard Jab configuration uses a Bing altitude compensating carb with no mixture control. I'm used to litres in this part of the world, but I know the J160 (same engine) at my local club is documented as burning 18 litres per hour (4.7 US gal per hour) for flight planning purposes. On that basis 7 gph could be in the ballpark for takeoff power.
TK On 22 June 2015 at 13:06, Mark Langford via KRnet <krnet at list.krnet.org> wrote: > Colin Hales wrote: > > >>My 75 hp 2.2 Jabiru Powered KR2 does 148 mph flat out burning shed loads > of fuel. 7 Gallons an hour. << > > Don't Jabirus have a mixture control? Apparently not. My bone-stock KR2 > with a 75 hp VW 2180 burns 4.0 US gph (3.33 UK gph) at 148 mph, throttled > back a bit to conserve fuel, turning 3150 rpm. Whether you are talking US > or UK gallons, the Jabiru appears to be wasting a lot of unburned fuel out > the tailpipe. Perhaps your KR2 is draggier than mine, but double the fuel > consumption at the same speed seems extreme. I'm talking true airspeed at > lower medium (maybe 4500') altitudes. You may be talking about some other > kind of airspeed. > > Mark Langford > ML at N56ML.com > http://www.n56ml.com > > _______________________________________________ > 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 >
