My Cassutt is probably close to a KR. I have a friend with a Lancair 235
sporting an 0-290. He and I are both over 200lbs resulting in a rearward cg..
When I first flew the aircraft it took a concerted effort to to not cause pilot
induced oscillations.
To fly it required "caging" the stick unt
Yes, a Monnett Moni motorglider. Fly with your fingertip.
Ron
--- On Tue, 1/19/10, Dan Heath wrote:
> From: Dan Heath
> Subject: RE: KR> Stick forces
> To: "'KRnet'"
> Date: Tuesday, January 19, 2010, 2:06 AM
> I am just curious. Has anyone
>
I am just curious. Has anyone ever flown a plane that has lighter stick
forces than a KR, fly by wire does not count???
See N64KR at http://KRBuilder.org - Then click on the pics
See you at the 2010 - KR Gathering in Richmond, Ky - I39
There is a time for building and a time for FLYING and the t
No, some of us(me) are just a little denser than others:-)
Fred Johnson
Reno, NV
Mark L wrote:
I guess I'm not very good at explaining things, but that's exactly what I
was trying to say. Except I used "3 or 4 inches" and you used 3.5".
Fred Johnson wrote:
> If your stick is 12" but your attachment point is say 3.5" (from center of
> torque tube) wouldn't the forces be 12 divided 3.5 =3.4 times what you
> feel
> at the end of the stick?
I guess I'm not very good at explaining things, but that's exactly what I
was trying to say
Mark Langford wrote:
>
> I designed the ailerons to have the same surface area at the same effective
> moment arm about the fuselage roll axis
>
>
Mark, I'm not exactly certain I understand this measurement. Could you
give me a brief explanation? Thanks.
--
Glenn Martin
Owner
KR2 N1333A
Bil
Hi,
I found the following article on the web.
http://www.sportplanedesign.com/pdf/LSA_Specs_26-31_SportPilot_v2.pdf
It states that for Light Sport Aircraft (LSA) the maximum allowable
short-term stick force is 45 lbs and the prolonged is 5.2 lbs. For FAR Part
23 certified aircraft its 60 lbs and
What about the leverage factor of the stick itself?
If your stick in 12" but your attachment point is say 3.5" (from center of
torque tube) wouldn't the forces be 12 divided 3.5 =3.4 times what you feel
at the end of the stick?
Fred Johnson
Reno, NV
Mark L wrote?
Don't forget the ratio of t
Fred Johnson wrote:
> My thought was a cable with the capacity of 80# would be enough, as I
> think
> that would be two fisted flying:-)
Don't forget the ratio of the stick pivot point to the bellcrank attachment
points is also a factor. It's probably 3:1 or 4:1 depending on how long the
stic
At 01:05 PM 1/18/2010, you wrote:
>I ask because I am considering a change in aileron controls. I was
>considering a push/pull cable.
+++
Just make sure the system you intend to use can be adjusted for
"zero" slop in the syst
Thanks Mark!
I ask because I am considering a change in aileron controls. I was
considering a push/pull cable. I can find them rated from 40# to 200#
depending on lengths and total movement required. The cable would be
connected to the control stick and connect directly to the ailerons via rod
bea
Fred Johnson wrote:
>I looked at the archives and not much more was said about the stick force
> meter?
Sid Wood brought one to the Gathering, and I flew with it in my plane. I
don't remember the exact number (maybe Sid does), but I believe is was a
pound or less is all you need to make the pl
I looked at the archives and not much more was said about the stick force
meter?
Does anyone have an idea of what the actual stick forces are on the KR?
Fred Johnson
Reno, NV
...what can be done
> to raise the stick forces, mainly the elevator, to make it less prone to
> PIO.
Has any one made the elevator smaller?
I know the hoz stab has been made larger (giving same effect? as making
elevator smaller), but in looking at aircraft tails most seem to have 2/3 non
The KR has been around for almost 35 years and that subject has been
discussed many times for almost as many years. Once you fly it for a while,
it will not be a problem just like it is, in fact, you might just like it.
See N64KR at http://KRBuilder.org - Then click on the pics
See you in Mt. V
Interesting! Can these be used in lieu of mass balance?
Regards,
Peter Wastney
- Original Message -
From: "Ronald R.Eason"
To: "'KRnet'"
Sent: Thursday, July 27, 2006 7:34 AM
Subject: RE: KR> Stick Forces
> Some people think it's a matter of ge
Hi all,
Although this topic is not specifically KR related I think it would
incite some discussion. Once you have your plane ready what can be done
to raise the stick forces, mainly the elevator, to make it less prone to
PIO. Also, something like a exponential command would also work.
Wladimir:
Perhaps some creative ways to place springs in the system to create a false
load on the stick? This would of course add weight and complexity and there
would also be a permanent load on the structure where ever the spring was
anchored. Good or bad I am not sure but i would think it cou
I think that I will take this in a different direction. I would not
change the sensitivity on my KR for love or money. I became comfortable
with the elevator with inn the first couple landings. And in fact Mark
Langford and I had recently talked about how stiff the ailerons were at
speed with the n
Make the stick longer thus requiring more movement of the hand/arm, if
you hold it at the top, to move the elevator and ailerons. Once you get
the feel of the plane, lower your hand on the stick and fly with your
finger tips. On smooth days, I generally only have my thumb and
forefinger on my stick
...what can be done
to raise the stick forces, mainly the elevator, to make it less prone to
PIO. Also, something like a exponential command would also work.
1. You could balance the elevator. The extra mass may slow down jerking
around for PIO. Helps with flutter control also.
2. M
Not if it's an ANTI servo. This is what I had planned for my project,
wherever it is now .
I agree with item 6 also.
Ron Freiberger
mail to ronandmartha at earthlink.net
-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On
Behalf Of Wood, Sidney M (T
) @ TITAN
Sent: Wednesday, June 28, 2006 1:14 PM
To: kr...@mylist.net
Subject: KR> Stick Forces
...what can be done
to raise the stick forces, mainly the elevator, to make it less prone to
PIO. Also, something like a exponential command would also work.
1. You could balance the elevator
I believe that if you go with #5 and #6, that you will have no problem with
PIO.
See N64KR at http://KRBuilder.org - Then click on the pics
See you in Mt. Vernon - 2006 - KR Gathering
There is a time for building and a time for FLYING and the time for building
is OVER.
Daniel R. Heath - Lexingto
>
>Although this topic is not specifically KR related I think it would
>incite some discussion. Once you have your plane ready what can be done
>to raise the stick forces, mainly the elevator, to make it less prone to
>PIO. Also, something like a exponential command would also work.
++
I started building a KR-1 in 1974 and built the fuselage and tail and
wing spars and had it on the gear and my piloet budies said i would get
it into a PIO and kill myself so I stoped. One of our sailplane piolets
got a 126 in a PIO on final and did hit his head on the aide rail and did
die, maybe
If you think this will be a problem? go to www.KRnet.org and look at the
KR's that are flying especially Troy Petteway's photo of the horizontal
tail and read what he done to solve that very problem when he rebuilt is
plane. also look at Bill Rents' KR-1 website.
Jim
On Wed, 28 Jun 2006 13:40:43 -
I agree with most KR guys - it flies great just as is - you get used to it
real fast - makes a 150 feel like a dumptruck though
Bill and 41768
Make the stick longer than the plans. It will slow everything down.
Bob Clark
Ankeny Iowa
-
Do you Yahoo!?
Get on board. You're invited to try the new Yahoo! Mail Beta.
For you lucky ones that are flying already. So how much resistance in our
chosen little birds stick is there? What kind of pressure from the elevator?
I have read there is next to nothing in the ailerons. How about the tail?
What kind of back pressure do you feel thru the pedals?
Steve McG
>For you lucky ones that are flying already. So how much resistance in our
chosen little birds stick is there? What kind of pressure from the
elevator? I have read there is next to nothing in the ailerons. How about
the tail? What kind of back pressure do you feel thru the pedals?
>>Steve McGe
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