Just a note on the Sakkie Halgreen crash. It was not in ZS-UKU but a different
plane! UKU was not involved in a crash.
The plane Sakkie crashed in crashed due to a balance weight bolted to the prop
hub coming off and breaking the prop. Due to the now rearward CG the plane
entered a flat spin.
Just got a note from a friend who knows the pilots and planes involved and this
is his comment. He's in the UK currently and the crash was in RSA so he
doesn't have anything more current that what he says here.
"Yeah, knew Nevil well. He had an Extra and was doing well but I think hard
times
Let's back up and take a deep breath here. So far we know of exactly
ONE critical structural failure that's resulted in a KR crash, and
there's clear evidence of serious aerobatics being done in that plane,
certainly recently before the crash, and likely just prior. That photo
that we've seen
I agree with you Victor, including view points of many others on
this matter, such as that of Larry's and Chris's questions and comments
etc... However, it may be worth exploring on the installation of a chute,
whether it is a pilot strap-on or have it mounted somewhere to the
aircraft structure.
I have a 1947 Bellanca cruiseair 14-13-2. In 2000 I restore the airplane from
the ground up. There were two patches on the wings from an accident that
happened in the 1950s. We pull those two sheets off and inspected the wings
from tip to tip. There was not a single flaw in either of those wings
Yes, as noted in my comment on Mark L's comment (third paragraph, first
line of my e-mail), clamp force for the WAFs is irrelevant for exactly
the reason you have noted. Although the comment about "greater length
... than it will see in service" is not exactly what we need to see in
the applica
Le dim. 7 nov. 2021 à 16:21, jean paul GLOTIN
a écrit :
>
> Le dim. 7 nov. 2021 à 16:17, jean paul GLOTIN
> a écrit :
>
>> May .be this book could hello you
>>
>> Le sam. 6 nov. 2021 à 20:43, Chris Kinnaman a écrit :
>>
>>> What exactly do you mean by "strip"? The plastic/fiber in AN364 & AN365
In any event the consensus seems to be that this is the first anyone
within the KR community has heard of a spar failure in the center
section. So far that makes it an anomaly, with no indication of any sort
of trend. It's been said that "a pilot can pull the wings off any
airplane that's ever
On 11/7/2021 7:49 AM, Mark Wegmet wrote:
Another way of looking at "torque" requirements at the basic
engineering level of fasteners is to consider that it is a conversion
of (unmeasurable) clamping force on a fastener to a (measurable)
rotational force that considers the tensile strength and e
On 11/7/2021 6:59 AM, victor taylor via KRnet wrote:
In reference to Dr Feng's safety concerns here is a lot to consider. Keep in
mind like Larry said that this is the first known wing failure of a KR in 30
years.
+++
Another way of looking at "torque" requirements at the basic engineering
level of fasteners is to consider that it is a conversion of
(unmeasurable) clamping force on a fastener to a (measurable) rotational
force that considers the tensile strength and elongation under load of a
material (i.e.,
In reference to Dr Feng's safety concerns here is a lot to consider. Keep in
mind like Larry said that this is the first known wing failure of a KR in 30
years. Let's see, Piper Cherokee lost a wing on a checkride in Florida two
years ago. Cessna 400 series and Beech 18 series both had to have s
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