This is from the EAA.
https://www.eaa.org/eaa/aircraft-building/builderresources/while-youre-building/building-articles/control-systems/control-surface-balancing-in-homebuilts
To add to that, the faster a plane is, the more important it is to have
control surfaces balanced. Many slow planes (
Can anyone recommend a good book or source for info on how to calculate the
correct control balances for a variety of wing/horizontal stab types?
jg
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The final accident report for the accident claiming an iconic KR-2
in South Africa and well known Pilot has been released.
++
I'm amazed that the aileron in flutter created enough force to fail
way back in the late 1980s when I first got involved with KR and bought a
few parts, I'd befriended a kr-1 builder and flyer who operated his for 20
years in Ohio. in fact I believe he is memorialized on Mark's web site.
anyway he described repainting his kr1 which could reach well over 200 mph
e
Hi,
Page 19 of the detailed report shows the right aileron on a mass scale reading
.415 kg ( approx. 1 pound ) under balanced at the weight position ( 145 mm
chord length).That's a lot ! Must have been under balanced from day 1.
(.415 kg X 145mm = 60 kg/mm)
The balancing weight is a T shaped tu
On 5/16/2022 8:07 AM, Mark Langford wrote:
I think what they are saying that at the original inspection, the
balance weights are inspected and the aileron balance is verified, but
subsequent inspections ("annuals" I presume) don't go into that kind
of detail to verify that they are still cap
Larry Flesner wrote:
> can someone convert that to non-engineer speak? If that was a factor
> it's amazing it went 800+ hours before failure.
I think what they are saying that at the original inspection, the
balance weights are inspected and the aileron balance is verified, but
subsequent ins
On 5/16/2022 6:04 AM, Michael via KRnet wrote:
The aileron was under balanced to the extent of 60 kilograms per
millimetre (kg/mm) residual moment.
can someone convert that to non-engineer speak? If th
Greetings
The final accident report for the accident claiming an iconic KR-2 in
South Africa and well known Pilot has been released.
http://www.caa.co.za/Latest%20Accident%20Reports/10061.pdf
*Synopsis:*
On Thursday afternoon, 28 October 2021, a pilot on-board a Rand KR-2
two-seat high-perfo
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