Hi all,
I built my Kr2 to plans. no stretches or mods. It has neutral trim with the C
of G at 4 inches aft of the forward limit. Either side of that due to fuel burn
or loading requires trim, but even on both limits I can trim my plane out with
a simple spring balance mechanism I have on the co
Great tips for an upcoming builder to be aware of. As added safety I plan to
install a BRS. Wont help at low altitude, but anything else and it could be
Godsend. Well worth the 20lbs and a few thousand dollars if just for the peace
of mind.
> "I know Marty Roberts tested his 760 pound empty
One must keep in mind that an airplane "stressed to (insert # here) Gs"
means all components, bearing the load intended, meet that same rating,
not just spars and fittings. Include things like radio trays, battery
boxes, and seats with occupants of course.
Chris
On 2/25/2015 3:18 PM, Mike Stir
> "I know Marty Roberts tested his 760 pound empty KR to 6 G's on his G
meter. The forces were great enough to cause his baggage compartment
to tear loose and limit the travel of the elevator cables. It came
very close to being fatal."
A similar failure, this time seat, actually killed two occ
Most production aircraft are rigged to optimize cruise configuration. Trim
relieves control forces in non-optimized flight configurations. Peter
I do notwant to build in a pitch tendency and then have to fight it with trim,
or worse,have full trim and still have stick forces at various pow
>\ Although it would be nice not to need any trim, what i do not want
>is to need massive amounts of trim to hold the nose up (or down). \
That's not going to be a problem if the flying CG is he
>
> Have any other flyers noticed the same thing or is it just my KR? I
> normally leave my pitch trim set as it was for landing so the problem
> is minimal on takeoff and cruise.
>
> Larry Flesner
Yep. As built, mine pitched down rather badly. I had wedges bonded to the
bottom of the ele
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