Please do not use the situation that your Kr2 sits on its tail and back up
as OK
My Kr2 has HEAVY nose weight which I did on purpose.
My Kr2 needs a minimum of a 70 kg (154 lb) pilot to move the CofG back to
fly it.
The figures and measurements must be correct, you do not want to fly a KR
wi
I'm trying to remember, but I think the typical flight-induced stress failures
almost always occur in the tail attach area, not the wings. It is difficult to
stress the wings to yield without stalling them. Therefore, the stronger wings
would demand stronger empennage and engine mount too. regar
"unless of course you're Mark Langford"
Since it is Friday I have to add my shot to this. When I was doing my
preliminary weight and balance I went searching for information. As usual I
ended up on Mark's project where he has a very nice table that lists his
weights and moments. I didn't look
You wrote Unless I'm mistaken, the "new wings" are only a new airfoil
design optimized for the KR's performance envelope. Nothing was done to
change the wing spars, which are the structural part that transfer the
loads.
That is true for the as5046. The as5048 is inherently stronger since the
spa
Paul wrote-
> I wish we could come up with a new max weight with the new wings.
Unless I'm mistaken, the "new wings" are only a new airfoil design optimized
for the KR's performance envelope. Nothing was done to change the wing spars,
which are the structural part that transfer the loads. In
At 09:31 AM 6/12/2014, you wrote:
>Gross weight per the FAA guidelines is 1146 pounds.
+
Gross weight for YOUR KR is anything you want it to be and is set by
the builder. I certified my KR at 1300 or 1350, I don't recall. The
170 pound passenger weig
I wish we could come up with a new max weight with the new wings. Then locate
the engine off the fire wall based on best CG location at max weight.
Paul Visk
Belleville Il
618 406 4705
Sent from my HTC on the Now Network from Sprint!
ist-Post: krnet@list.krnet.org
Date: Thu, Jun 12, 2014 10:31 am
Subject: KR> Weight & Balance
To:
Did weight and balance on 6/11/14 assisted by Bernie Wunder and my wife
Shirley. Empty weight is 758 pounds and CG is 8.41 inches. With me on
board and full fuel, weight is 1066 pounds and
Max Gross Weight & CG, Minimum Fuel, Standard Pilot & Passenger: Start with
Empty Weight, add standard pilot & passenger (170 pounds each) plus minimum
fuel. Minimum fuel weight is calculated using the formula: ((Max.
continuous hp)/12)X6. For my 2180 VW rated at 76 hp, that would be 38
pound
u, Jun 12, 2014 10:31 am
Subject: KR> Weight & Balance
To:
Did weight and balance on 6/11/14 assisted by Bernie Wunder and my wife
Shirley. Empty weight is 758 pounds and CG is 8.41 inches. With me on
board and full fuel, weight is 1066 pounds and CG is 13.41 inches; at that
loading, we
Did weight and balance on 6/11/14 assisted by Bernie Wunder and my wife
Shirley. Empty weight is 758 pounds and CG is 8.41 inches. With me on
board and full fuel, weight is 1066 pounds and CG is 13.41 inches; at that
loading, weight on the nose wheel is 90.6 pounds. Comparing that to the 63
I will check on the scales today. However, I will have to ship them both
ways and only want to do that if we are "for sure" going to have the forum.
I will also volunteer to be the pig, but I am sure there will be many who
want to volunteer for this.
So, Larry, let me know "FOR SURE" if this will
And I should clarify the "900 pounds empty" comment. You really need your
scales to go all the way to GROSS weight, in order to get exact locations
for pilot, fuel, baggage, etc. If it's a tri-gear, the weight is
distributed more equally between the three, and then we'd need three scales,
rat
I would not mind being the guinea pig, love get an updated weight.
Rob Schmitt
N1852Z
On Aug 30, 2013, at 7:38 PM, "Mark Langford" wrote:
> Dennis Dyer wrote:
>
>> is the weight and balance demonstration still in the plans for the
>> Gathering?
>
> I will bring a 400 and a 500 pound sca
Dennis Dyer wrote:
>is the weight and balance demonstration still in the plans for the
>Gathering?
I will bring a 400 and a 500 pound scale with me to the Gathering, and we'll
do a demo at whatever point Larry can squeeze in. We'll need a volunteer KR
guinea pig for the demo. If the plan
Dennis Dyer
What I meant to ask is the weight and balance demonstration still in the plans
for the Gathering?
781 pounds does exceed my self-assigned goal of 650 set many years ago.
However, adding a 2180 VW, Diehl adapter and electric, mechanical fuel pump,
oil filter, carb heat, cabin heat, Diehl skins, bigger spar, three batteries
(main and two backups), extra airspeed and wet compass, ELT, panel mou
roper W&B calculation for it.
?The actual gross weight can be determined later during flight testing.
-Jeff Scott
Los Alamos, NM
> - Original Message -
> From: Larry&Sallie Flesner
> Sent: 05/22/13 07:25 AM
> To: KRnet
> Subject: Re: KR> Weight & Balance
>
f Sid Wood
Sent: May-21-13 8:33 PM
To: krnet at list.krnet.org
Subject: KR> Weight & Balance
Empty weight is
781 pounds; FAA calculated gross is 1178 pounds for a useful load of 397
pounds.
With my tender body onboard the CG ranges from 12.4" full fuel to 11.2"
Empty.
S
The FAA has a procedure where you put in "standard" pilot and passenger
weights (170 pounds each), full fuel and max baggage on the weight and
balance work sheet. The total weight is then your max gross weight. It is
a calculated number. You also have to show that the CG is in the allowable
At 07:58 AM 5/22/2013, you wrote:
>The FAA has a procedure where you put in "standard" pilot and
>passenger weights (170 pounds each),
> full fuel and max baggage on the weight and balance work
> sheet. The total weight is then your max gross weight.
Well since you had the FAA do your inspection it doesn't do much good to argue,
but that's not right. That's a minimum suggested way to do w&b, but the
manufacturer (you) sets the "design" gross weight limits. Using the logic of
you local FSDO I technically wouldn't be able to fly my single pl
At 07:58 AM 5/22/2013, you wrote:
>You also have to show that the CG is in the allowable design range
>at that weight.
+
I'll buy showing different loadings remain in the CG range. I seem
to recall that being the second "off the wa
I wish they would update their standards.? The only 170 lb pilots are in
Ethiopia.? I'm gonna fly over gross every time if they apply that to me.
CW
From: smwood
To: krnet at list.krnet.org
Sent: Wednesday, May 22, 2013 8:58 AM
Subject: Re: KR>
Completed a weight & balance on my tri-gear KR-2 today. Started from
scratch and re-measured the wheel locations. The main wheels were 0.25 inch
further forward and the nose was 0.5 inch further forward than from the
numbers previously used. One explanation would be a new nose wheel strut.
F
At 09:32 PM 5/21/2013, you wrote:
>FAA calculated gross is 1178 pounds for a useful load of 397 pounds.
+++
Sid,
Glad to hear you're making progress toward the next flight. Please
explain "FAA calculated gross". I set the gross on my KR and I
I added a photo of my assembled Kr2 on my home page
http://www.philskr2.50megs.com/
I assembled by KR2 and fitted the wings and weighed her today.
Without paint, battery, wheel pants,spinner.
Just to get some ideas on the numbers
Front Wheel 229.5 lbs (104.1 kg)Total weight 638 lbs (246.6
Good news guys. I think. I did a preleminary W and B this week end here is the
results.
empty wt. 775 lbs.
me with header tank full 1055 lbs. 11.25 inches rear of leading edge.
Me with header tank full and one 8 gal. wing tank full 1103 lbs. 11.75 inches
rear of leading edge.
Me with header tn
Brian is correct. If you have only one good or high quality scale, that is all
you need. It may take you a little longer to weigh your plane. As Brian said,
just make a platform that is the same height off the ground as your scale
weighing surface to set your other tires on top of. I have one of
I weighed my KR-2 yesterday. It was 637 pounds empty. The forward and
rearward centers of gravities calculated at 8.28 and 13.25 inches from the
leading edge.
Are these numbers in the ballpark when using the AS5046 wing?
Jim Vance (N303JV)
va...@claflinwildcats.com
Jim Vance wrote:
> I weighed my KR-2 yesterday. It was 637 pounds empty. The forward and
rearward centers of gravities calculated at 8.28 and 13.25 inches from the
leading edge.
> Are these numbers in the ballpark when using the AS5046 wing?
Yes. The CG range for the AS5046 is basically the sa
Those of you flying the KR-2S, out of curiosity, where do you consider the
pilot / passenger station position to be located between the rear side of the
front center spar and the forward side of the rear center spar. In other words,
if you took your pilot / passenger datum, at what point in the
Circuit
TOORMINA NSW 2452
AUSTRALIA
phone: 61 2 66584767
email: johnja...@optusnet.com.au
- Original Message -
From: "Mark Jones"
To: "KR Net"
Sent: Sunday, November 14, 2004 1:11 PM
Subject: KR> Weight & Balance
> Those of you flying the KR-2S, out of curios
: "Martindale Family"
To: "KRnet"
Sent: Saturday, November 13, 2004 8:17 PM
Subject: Re: KR> Weight & Balance
> Mark
>
> I weighed mine with and without me in it with other factors left
unaltered.
> You can then calculate the arm for the pilot from the difference in t
OK. For my KR2 (not S) I'm sitting 685 mm back from WLE. Will depend on the
rake of the back seat. Passenger is the same but actually she's on my lap
most of the time :-).
vember 13, 2004 9:11 PM
Subject: KR> Weight & Balance
> Those of you flying the KR-2S, out of curiosity, where do you consider the
> pilot / passenger station position to be located between the rear side of
> the front center spar and the forward side of the rear center spar.
pilot / passenger station position
Hello Mark
I read Johns reply and agree with him. The rake of the seat will change
where the center of the weight is located (You could call it the CG of a
sitting body mass). For example a big headed person with a large heavy
torso and stick skinny legs c
I heard that the CG of the pilot (in a normal position) is rigt in the tummy
buton. Ths postionin the KR is arround the normal. I think.
Eduardo
- Original Message -
From: "Mark Jones"
To: "KR Net"
Sent: Saturday, November 13, 2004 11:11 PM
Subject: KR> Weight
I am tired of searching the archive. A long while back, someone posted a W&B
calculator which could be downloaded. This was a really nice one and on page
two was a prop speed calculator. Somehow I managed to hose up mine and the
program will not work properly now. If anyone has this or another one
Mark/nethope it will be useful..
regards..
Daniel
-Original Message-
From: krnet-bounces+dnieto=lucent@mylist.net
[mailto:krnet-bounces+dnieto=lucent@mylist.net]On Behalf Of Mark
Jones
Sent: Monday, November 15, 2004 3:28 PM
To: KR Net
Subject: KR> Weight &
again.with the attachment...I am sorry..
Daniel
-Original Message-
From: krnet-bounces+dnieto=lucent@mylist.net
[mailto:krnet-bounces+dnieto=lucent@mylist.net]On Behalf Of Mark
Jones
Sent: Monday, November 15, 2004 3:28 PM
To: KR Net
Subject: KR> Weight & Balance Cal
t;
---Original Message---
From: Nieto, Daniel A (Dany)
List-Post: krnet@list.krnet.org
Date: 11/15/04 12:04:58
To: 'KRnet'
Subject: RE: KR> Weight & Balance Calculator
again.with the attachment...I am sorry..
Daniel
-Original Message-
From: krnet-bounces+dnieto=l
Mark if you get it
Could you pass on to me please
Phillip Matheson
mathe...@dodo.com.au
Australia
VH PKR
See our engines and kits at.
http://www.vw-engines.com/
http://www.homebuilt-aviation.com/
See my KR Construction web page at
http://mywebpage.netscape.com/FlyingKRPhil/VHPKR.html
There are a couple of spread sheets for calculating W&B on KR-Builder.org
that were donated by other builders.
There is a time for building and a time for FLYING and the time for building
has expired.
See N64KR at http://KR-Builder.org - Then click on the pics
Daniel R. Heath - Columbia, SC
See
There were some questions about C/G Range last week.
I would like to add my two cents to that.
I ran some calculations yesterday about my first 12 flights of a stock KR2S
with a GPAS engine.
I have a 1,4in engine mount spacer installed, and had problems during the
first flight with nose up trim.
I
To: 'KR builders and pilots'
Subject: KR>Weight & Balance Flight Data
There were some questions about C/G Range last week.
I would like to add my two cents to that.
I ran some calculations yesterday about my first 12 flights of a stock KR2S
with a GPAS engine.
I have a 1,4in engine mo
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