Your main challenge on a KR is stall speed. If you don't build it very light, I do not think you will be able to meet this requirement. Remember this is "clean" stall, no flaps.
Dan Heath > On Jan 31, 2014, at 11:35 AM, Dj Merrill <deej at deej.net> wrote: > >> On 01/31/2014 02:21 AM, Mike T wrote: >> These two designs aren't as far >> apart as they seem, because a KR-2 can also be LSA compliant. It already >> makes the LSA stall speed if you keep it light, and I could use a smaller >> VW engine (or just adjust the throttle so the carb doesn't open all the >> way) to get it down to the LSA top speed someday. I think the LSA law >> would le me fly the plane fast for now, then slow it down to make it LSA >> compliant if I ever get sick of getting medicals. > > > Just a clarification, but the LSA rules will not let you fly it fast now > and then slow it down to LSA specs. The rules say that the aircraft > must ALWAYS have met LSA specs in order for a Sport Pilot to fly the > aircraft, or a private pilot not requiring a medical. > > You also would not need to put a throttle stop on the carb, or use a > smaller VW engine. The LSA rules say that it can't exceed 120 kts "with > maximum CONTINUOUS power". As the aircraft manufacturer, you can define > the maximum speed allowed, and you can label the panel with the max RPM > in level flight, which may be lower than the max RPM that the engine is > capable of. This allows you to use full power for takeoff and climb, > and only have to throttle back once you are at your cruising altitude. > There are existing aircraft that do this, including the infamous Carbon > Cub with its 180 hp engine: > > http://www.cubcrafters.com/carboncubss > > Note at the bottom of that page: > > "180 Horsepower for takeoff and climb up to 5 minutes - 80 Horsepower > for continuous operation. It is the pilots responsibility to operate the > aircraft in accordance with the pilot operating handbook and aircraft > placarding. There is NO governor or limiting system that controls the > engines power settings" > > > Here is an overview of the LSA regs if you are curious: > > http://www.sportpilot.org/learn/final_rule_synopsis.html > > -Dj > > > -- > Dj Merrill - N1JOV - VP EAA Chapter 87 > Sportsman 2+2 Builder #7118 N421DJ - http://deej.net/sportsman/ > Glastar Flyer N866RH - http://deej.net/glastar/ > > _______________________________________________ > 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
