Re: KR> CG tolerance

2020-08-10 Thread Flesner via KRnet
On 8/10/2020 5:10 AM, Mark Langford via KRnet wrote: Pretty simple stuff, but failure to to it correctly has led to crashed planes and dead pilots. Almost been there, almost did that!  See http://www.n56ml.com/wb/index.html if you haven't already. ++

Re: KR> CG tolerance

2020-08-10 Thread Mark Langford via KRnet
As for weight and balance, it's a simple summation of moments involving empty aircraft weight and the variable weights of things like pilot/passenger, fuel, and baggage, such that the the aircraft CG range is maintained in the proven CG envelope, located around the center of lift.There a

Re: KR> CG tolerance

2020-08-10 Thread Phillip Matheson via KRnet
Rear CofG. Amen to that. It’s not a nice feeling. I also had the trim cable fail with two on board. Had to fly and land holding forward stick the entire time. Puckering material. Phil. Sent from my iPhone > On 10 Aug 2020, at 17:25, Gary Sack via KRnet wrote: > > 81JM is a joy to fly at fo

Re: KR> CG tolerance

2020-08-10 Thread Gary Sack via KRnet
81JM is a joy to fly at forward CG and a miserable thing at aft CG. I haven't taken up passengers in a very long while for this reason. I once turned controls over to a CFI during a biannual and quickly took them back: "If I can safely get this thing back on the ground, will you pass me?" I d

Re: KR> CG tolerance

2020-08-09 Thread Flesner via KRnet
This whole CG thing comes down to the following simple law of physics: Any lifting body (wing) has a center of lift (CL) where if all areas of lift were concentrated in to one spot, it is the CL  The engineer designs the airplane to distribute the weight of the aircraft so that if all weight

Re: KR> CG tolerance

2020-08-09 Thread Phillip Matheson via KRnet
My Kr2 was balanced nose heavy. It needs a minimum of 70kg pilot to fly. Wing tanks on the CofG central line. Flys great. But as always with the short Kr2, PIO (pilot induced isolations) with over correction is common. If I did not have an experienced Kr pilot with me on my first flight, it woul

KR> CG tolerance

2020-08-09 Thread Flesner via KRnet
On 8/9/2020 2:53 PM, Dr. Feng Hsu wrote: So, it could be dangerous even if the tail section is around 2 pond heavier than CG required, correct?! Kindly, Dr. Hsu +++ I don't know if anyone has tested C.G. range down

Re: KR> CG for AS5046 airfoil

2018-09-12 Thread Mark Langford via KRnet
Craig Williams wrote: >> Are we using 25-33% MAC for the CG range on the AS5046 airfoil? I setting up a new datum and rechecking moment arms locations for an updated POH.<< I've got too much on my plate to check right now, and it's been a long time since we did that, but the basic prem

KR> CG for AS5046 airfoil

2018-09-12 Thread Craig Williams via KRnet
Are we using 25-33% MAC for the CG range on the AS5046 airfoil? I setting up a new datum and rechecking moment arms locations for an updated POH. Thanks Craig ___ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please

KR> CG fuel slosh question

2015-06-05 Thread Chris Prata
I wonder how much the CG moves when climbing for example, when the fuel sloshes/repositions to the rear of the tank? Cant be much of an issue because I have never heard of it, just wondering... could be checked by inclining the plane with scales I suppose...

KR> CG fuel slosh question

2015-06-05 Thread Nerobro
The geometry isn't that hard to figure out. You can do the math on where the CG will be at any given attitude. "how much" the CG can change varied with how much fuel is in the tank. On Fri, Jun 5, 2015 at 1:10 PM, Chris Prata via KRnet wrote: > I wonder how much the CG moves when climbing for

KR> CG 2 vs 2S

2014-07-08 Thread jon kimmel
You are correct that the new airfoil can change the cg limits...the aft cg limit is based on the wing...not the aircraft...so a different airfoil might affect the c.g. range. I looked through a selection of different aircraft and 15%-35% mac is a pretty common range. https://sites.google.com/site

KR> CG 2 vs 2S

2014-07-08 Thread Flesner
>...the kr2s should actually have a >smaller cg range than the kr2. This is because the kr2s has a shorter mean >aerodynamic chord. 15% to 35% mac is a smaller range on the kr2s than a >kr2. +++ Where is the center of lift on the new airfo

KR> CG Considerations

2013-07-22 Thread Adam Tippin
Err sorry. I meant 220#@2"=440 moment On Jul 22, 2013 9:26 PM, "Adam Tippin" wrote: > 30# @ 18" = 540 moment. > 220#@ 2" = 540 moment. > On Jul 22, 2013 6:04 PM, "Larry&Sallie Flesner" > wrote: > >> >> I am finally taking Jim Faughn's recommendation to move the 2180 VW >>> 2-inches forward. >

KR> CG Considerations

2013-07-22 Thread Adam Tippin
30# @ 18" = 540 moment. 220#@ 2" = 540 moment. On Jul 22, 2013 6:04 PM, "Larry&Sallie Flesner" wrote: > > I am finally taking Jim Faughn's recommendation to move the 2180 VW >> 2-inches forward. >> Sid Wood >> > ++**++** > ++

KR> CG Considerations

2013-07-22 Thread Riley Collins
Sid, you might want to crunch some numbers on the engine move. To remove 30 lbs from the nose you are probably looking at an engine move of 10 or so inches. Riley Collins Rutledge, TN On Mon, Jul 22, 2013 at 3:31 PM, Sid Wood wrote: > My KR-2 is now in my air conditioned shop at home. Afte

KR> CG Considerations

2013-07-22 Thread Joe L.
If anyone is interested i have my KR2 up for sale again as the previous buyer decided not to complete the sale. I have lowered the price to 8500.00 which is less ?than the parts alone are worth. To see pictures i have an ad on Barnstomers that describes the

KR> CG Considerations

2013-07-22 Thread Larry&Sallie Flesner
> I am finally taking Jim Faughn's recommendation to move the 2180 > VW 2-inches forward. >Sid Wood ++ This would be a great time to install that 0-200. :-) Larry Flesner

KR> CG Considerations

2013-07-22 Thread Jeff Scott
think will turn out to be a really good decision. -Jeff Scott Los Alamos, NM > - Original Message - > From: Sid Wood > Sent: 07/22/13 01:31 PM > To: krnet at list.krnet.org > Subject: KR> CG Considerations > > My KR-2 is now in my air conditioned shop at home. Afte

KR> CG Considerations

2013-07-22 Thread Sid Wood
My KR-2 is now in my air conditioned shop at home. After three flights for a total of 55 minutes, I am finally taking Jim Faughn's recommendation to move the 2180 VW 2-inches forward. I have the 2-inch aluminum blocks and an aluminum spacer for the nose strut made by a local machine shop plus

KR> cg question...put another way.....

2013-03-05 Thread Dan Heath
Specifications state 8-16" aft of the inboard wing leading edge. For N64KR, the CG range is 8" to 14" aft of the inboard wing leading edge. This is because it is generally accepted that the aft 2" are a dangerous place to be. I hope that answers your question as I don't have it in relation to th

KR> cg question...put another way.....

2013-03-05 Thread jon kimmel
>> >> Gary >> >> >> >> >> >> -Original Message- >> From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of jon kimmel >> Sent: Tuesday, March 05, 2013 10:59 AM >> To: KRnet >> Subject: Re: KR> cg question... >

KR> cg question...put another way.....

2013-03-05 Thread jon kimmel
r, front or rear face. > > > > > > > > > > > > > > Gary > > > > > > -Original Message- > From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of jon kimmel > Sent: Tuesday, March 05, 2013 10:59 AM > To: KRnet > Subject: Re: KR>

KR> cg question...put another way.....

2013-03-05 Thread GaryH
Where is the KR2 design gross weight most forward cg in relation to the spar, front or rear face. Gary -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of jon kimmel Sent: Tuesday, March 05, 2013 10:59 AM To: KRnet Subject: Re: KR>

KR> cg question...

2013-03-05 Thread jon kimmel
35% MAC is a very common aft cg limit...from 707s to cessna 150s. To get any more accurate you would have to know exactly the point where you don't need any download on your elevator/stabilizer. Of course the longer and narrower your wings are the smaller and further forward your MAC moves. Once

KR> cg question...

2013-03-05 Thread GaryH
Does anyone have a dimension location in relation to the rear side of the main spar for the cg using the 5048 wing? Thanks, Gary

KR> CG correction

2012-01-07 Thread Larry&Sallie Flesner
The CG range called for in the plans is " 8 to 16 inches aft of the inboard wing lead edge. I'm not sure that my earlier stated location was entirely correct. Larry Flesner

KR> KR CG

2011-07-10 Thread Peter Diffey
eliminate the sideloading? James - Original Message - From: "smwood" To: Sent: Saturday, July 09, 2011 9:19 AM Subject: KR> KR CG Leveling does change with loading as the airplane settles on the main gear. The spring gear also moves the wheels outboard with increasin

KR> KR CG

2011-07-09 Thread James Millar
Perhaps put the scales on those furniture dollies with casters to eliminate the sideloading? James - Original Message - From: "smwood" To: Sent: Saturday, July 09, 2011 9:19 AM Subject: KR> KR CG Leveling does change with loading as the airplane settles on the ma

KR> KR CG

2011-07-09 Thread kr2coo...@comcast.net
Sid Tried to send pictures to your email address but was blocked. Jack Cooper Chuckey TN. - Original Message - From: "smwood" To: kr...@mylist.net Sent: Saturday, July 9, 2011 8:19:18 AM Subject: KR> KR CG My previously reported KR-2 weight is in error.  Af

KR> KR CG

2011-07-09 Thread kr2coo...@comcast.net
ack Cooper Chuckey TN. - Original Message - From: "smwood" To: kr...@mylist.net Sent: Saturday, July 9, 2011 8:19:18 AM Subject: KR> KR CG My previously reported KR-2 weight is in error.  After some help by fellow Chapter 478 members Bernie Wunder and Tom We

KR> KR CG

2011-07-09 Thread smwood
My previously reported KR-2 weight is in error. After some help by fellow Chapter 478 members Bernie Wunder and Tom Weis and assisted by Mike Weis, the correct weight appears to be 746 or 709 pounds, depending on which measurement and which bathroom scale you care to believe. When we loaded t

KR> CG

2008-10-12 Thread beverlyrai...@bellsouth.net
Last year testing with 120 pounds of simulated passenger weight, and me at 195#, with half fuel my plane was just busy, but not unstable. It is a KR2 built to plans with 1 inch extension on the motor mounts of the VW standard mount. The 1915 cc VW engine was not big enough for a decent climb rat

KR> cg with Deihl wing skins

2008-10-12 Thread countryhomeprint
Recently the first flight was made in 880AB. As with most any experimental aircraft a few problems occur. Question? Is the cg range for Dan Deihl wing skin wings the same as for the standard KR-2 wings? N880AB's cg falls within the limits for the standard KR-2, however my KR feels tail heavy. I

KR> cg with Deihl wing skins

2008-10-12 Thread D F Lively
Bill: I can not address this with respect to KR aircraft but do have knowledge of an elevator stall problem in the early units of a certified craft that led to ADs. The early Cessna Cardinals(177s) with the Laminair flow wing had such a problem That crafy has a "Flying Tail" and is a high win

KR> cg with Deihl wing skins

2008-10-12 Thread Dan Heath
I believe that the CG must be the same as it is the same airfoil. I too am concerned about the difference between the stock wing and the Diehl wings. Before I fly mine, I intend to ask Dan what to expect. See N64KR at http://KRBuilder.org - Then click on the pics See you in Mt. Vernon - 2006 -

KR> cg with Deihl wing skins

2008-10-12 Thread Martindale Family
net.com.au web: http://www.members.optusnet.com.au/johnjanet/Martindale.htm - Original Message - From: "D F Lively" To: "KRnet" Sent: Thursday, March 30, 2006 1:53 PM Subject: Re: KR> cg with Deihl wing skins > Bill: > > I can not address this with re

KR> cg with Deihl wing skins

2008-10-12 Thread D F Lively
; AUSTRALIA > > ph: 61 2 66584767 > email: johnja...@optusnet.com.au > web: http://www.members.optusnet.com.au/johnjanet/Martindale.htm > - Original Message ----- > From: "D F Lively" > To: "KRnet" > Sent: Thursday, March 30, 2006 1:53 PM > Subject: Re: KR> cg wi

KR> cg with Deihl wing skins

2008-10-12 Thread Larry&Sallie Flesner
> Is the cg range for Dan Deihl wing skin wings the same as for the > standard KR-2 wings? N880AB's cg falls within the limits for the > standard KR-2, however my KR feels tail heavy. I am unable to > establish a true stall due to the uncontrolled pitching up of the > wings prior to stall. I

KR> cg with Deihl wing skins

2008-10-12 Thread VIRGIL N SALISBURY
Some one mentioned DECALAGE at one time, Virg On Thu, 30 Mar 2006 08:25:57 -0600 Larry&Sallie Flesner writes: > > > > Is the cg range for Dan Deihl wing skin wings the same as for the > > > standard KR-2 wings? N880AB's cg falls within the limits for the > > standard KR-2, however m

KR> cg with Deihl wing skins

2008-10-12 Thread Kenneth B. Jones
mount. Ken Jones, kenbjo...@cinci.rr.com Sharonville, OH N5834, aka The Porkopolis Flying Pig, KR-2 KHAO 155 Hours - Original Message - From: "countryhomeprint" To: "KRnet" Sent: Wednesday, March 29, 2006 9:14 PM Subject: KR> cg with Deihl wing skins > Recent

KR> cg with Deihl wing skins

2008-10-12 Thread Jack Cooper
Date: 3/29/2006 9:16:41 PM > Subject: KR> cg with Deihl wing skins > > Recently the first flight was made in 880AB. As with most any experimental aircraft a few problems occur. Question? Is the cg range for Dan Deihl wing skin wings the same as for the standard KR-2 wings? N880AB

KR> cg with Deihl wing skins

2008-10-12 Thread Jack Cooper
Dan Be sure to let all of know what you learn from Dan Diehl. Where are you on the engine installation? Jack Cooper > [Original Message] > From: Dan Heath > To: > Date: 3/29/2006 10:28:23 PM > Subject: Re: KR> cg with Deihl wing skins > > I believe that the CG must

KR> cg with Deihl wing skins

2008-10-12 Thread countryhomeprint
Larry&Sallie Flesner" To: "KRnet" Sent: Thursday, March 30, 2006 8:25 AM Subject: KR> cg with Deihl wing skins > > >> Is the cg range for Dan Deihl wing skin wings the same as for the >> standard KR-2 wings? N880AB's cg falls within the limits for the &

KR> cg with Deihl wing skins

2008-10-12 Thread countryhomeprint
ing) Bill Page boliverp...@bellsouth.net - Original Message - From: "Jack Cooper" To: "KRnet" Sent: Thursday, March 30, 2006 11:22 AM Subject: RE: KR> cg with Deihl wing skins > Bill > > Have you had someone else review your W&B figures?? A double c

KR> cg with Deihl wing skins

2008-10-12 Thread countryhomeprint
ot;KRnet" Sent: Thursday, March 30, 2006 11:24 AM Subject: Re: KR> cg with Deihl wing skins > Dan > > Be sure to let all of know what you learn from Dan Diehl. Where are you on > the engine installation? > > Jack Cooper > > >> [Original Message] >> From: Dan H

KR> CG Calculations.

2008-10-12 Thread Dan Heath
Is that empty? Ours came out 2" in front of the forward limit, empty, and the most forward that I can get with full fuel and me in it, is 1" inside of the forward limit. Did you calculate the station for your fuel and people? See N64KR at http://KRBuilder.org - Then click on the pics See you i

KR> cg with Deihl wing skins

2008-10-12 Thread Dan Heath
Sorry, didn't read this one first. Yours comes out very much like mine does If I ever get to fly it, I'll let you know how it compares in flight. You know, the KR wants to fly, nose down, and more nose down, the faster it goes Maybe, this is some of what you are experiencing. See N64KR at ht

KR> cg with Deihl wing skins

2008-10-12 Thread John Martindale
world in Australia. John - Original Message - From: "countryhomeprint" To: ; "KRnet" Sent: Friday, March 31, 2006 9:51 AM Subject: Re: KR> cg with Deihl wing skins > Jack, I had 2 different cg calculations done by two different A & P's > using &

KR> CG Calculations.

2008-10-12 Thread countryhomeprint
- From: "Dan Heath" To: Sent: Thursday, March 30, 2006 7:04 PM Subject: KR> CG Calculations. > Is that empty? Ours came out 2" in front of the forward limit, empty, and > the most forward that I can get with full fuel and me in it, is 1" inside > of > the fo

KR> cg with Deihl wing skins

2008-10-12 Thread countryhomeprint
y, March 30, 2006 7:45 PM Subject: Re: KR> cg with Deihl wing skins > Hi Bill > > Most odd :-) > > Those figures seem similiar to mine and others. You should be able to keep > within 8 to 12 " aft of leading edge in most loadings. Although RR states > 16" as the r

KR> cg with Deihl wing skins

2008-10-12 Thread Jim Faughn
Subject: Re: KR> cg with Deihl wing skins Larry, my cg falls about an inch from the front limit empty. With full gas it falls about 3/4 inch from front limit. This was determined with two calculations with two different datum points. Each fell at approximately the same distance from the fr

KR> cg with Deihl wing skins

2008-10-12 Thread VIRGIL N SALISBURY
Foreward C G should cause a tail LIGHT condition, Virg On Thu, 30 Mar 2006 20:10:56 -0500 (Eastern Standard Time) "Dan Heath" writes: > Sorry, didn't read this one first. Yours comes out very much like > mine does > If I ever get to fly it, I'll let you know how it compares in > flig

KR> cg with Deihl wing skins

2008-10-12 Thread Mark Jones
CorvAIRCRAFT web site at www.flykr2s.com - Original Message - From: "VIRGIL N SALISBURY" To: Sent: Thursday, March 30, 2006 9:48 PM Subject: Re: KR> cg with Deihl wing skins > Foreward C G should cause a tail LIGHT condition, Virg > > On Thu, 30 Mar 2006 2

KR> cg with Deihl wing skins

2008-10-12 Thread countryhomeprint
4 inch of each other. I was sitting in the plane when the pilot calculation was made. Bill boliverp...@bellsouth.net - Original Message - From: "Jim Faughn" To: "'KRnet'" Sent: Thursday, March 30, 2006 9:24 PM Subject: RE: KR> cg with Deihl wing skins

KR> cg with Deihl wing skins

2008-10-12 Thread countryhomeprint
The slower the airspeed, the lighter the stick becomes in the back position. - Original Message - From: "VIRGIL N SALISBURY" To: Sent: Thursday, March 30, 2006 9:48 PM Subject: Re: KR> cg with Deihl wing skins >Foreward C G should cause a tail LIGHT condition,

KR> cg with Deihl wing skins

2008-10-12 Thread countryhomeprint
Mark, the calculations are in my KR. I will retrieve them and send you a copy. Bill - Original Message - From: "Mark Jones" To: "KRnet" Sent: Thursday, March 30, 2006 10:05 PM Subject: Re: KR> cg with Deihl wing skins > Virg, I am glad you pointed that o

KR> cg with Deihl wing skins

2008-10-12 Thread Mark Jones
-Original Message- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of countryhomeprint Sent: Friday, March 31, 2006 7:13 AM To: KRnet Subject: Re: KR> cg with Deihl wing skins The slower the airspeed, the lighter the stick becomes in the back posit

KR> cg with Deihl wing skins

2008-10-12 Thread Brian Kraut
No one has brought up that if you have a tail heavy condition you will have one heck of a handfull just trying to fly the plane straight and level. You may not have noticed if you have been flying very sensitive aerobatic planes for the past few years, but if you have spent most of your time in mo

KR> Cg

2008-10-12 Thread bo...@hatconversions.com
Without reading through the archives, do any of you guys know what station the retract gear sets at using the bottom of the firewall as 00. Don't have a set of drawings. Trying to do some preliminary engine mount measurements. Is there a retract bird with an 0-200 out there anywhere? Bobby

KR> Cg

2008-10-12 Thread Brad Ankerstar
I.m using 18.5" aft of the firewall and 24.7 pounds. Gear up I have at 34". Brad Ankerstar KR 2 N84BA Lebanon, OH

KR> Cg

2008-10-12 Thread VIRGIL N SALISBURY
With retracts, be sure to measurew the CG with the gear up, Virg On Wed, 1 Mar 2006 18:07:34 -0500 "Brad Ankerstar" writes: > I.m using 18.5" aft of the firewall and 24.7 pounds. Gear up I have > at 34". > > Brad Ankerstar > KR 2 N84BA > Lebanon, OH > > > ___

KR> CG range: 15% to 35% chord.

2008-10-12 Thread Ryan
My KR's empty CG with pilot aboard is at 29% wing chord. Does anyone else fly with this amount of aft CG ? Ryan

KR> CG and the KR2S

2008-10-12 Thread bo...@hatconversions.com
op off the fuel tank. > Your results may vary.--I'm 240lbs and the last passenger was > 135 lbs. > > Kenny 6399U > > > - Original Message - > From: "Colin Rainey" > To: > Sent: Saturday, December 31, 2005 7:24 AM > Subject: KR> CG

KR> CG and the KR2S

2008-10-12 Thread Colin Rainey
Kenny and Bobby My initial post was in response to a question posed by a builder in reference to whether or not the CG location and limits were different from the original KR2 and the KR2S. I had stated that they were not if both aircraft were built to plans. Kenny your plane being flown within

KR> CG and the KR2S

2008-10-12 Thread Kenneth Wiltrout
The problem with these things is that everything you do changes the CG-including leaning forward. Somebody needs to invent a sliding counter weight. ( just kidding) - Original Message - From: "Colin Rainey" To: Sent: Wednesday, January 04, 2006 7:24 PM Subject:

KR> CG and the KR2S

2008-10-12 Thread VIRGIL N SALISBURY
weight. ( just kidding) > > > > - Original Message - > From: "Colin Rainey" > To: > Sent: Wednesday, January 04, 2006 7:24 PM > Subject: KR> CG and the KR2S > > > > Kenny and Bobby > > My initial post was in response to a question posed b

KR> CG and the KR2S

2008-10-12 Thread Larry&Sallie Flesner
At 06:42 PM 1/4/2006, you wrote: >The problem with these things is that everything you do changes the >CG-including leaning forward. Ken + That's true on any aircraft. I once flew the Tripacer on a clear , smooth night for 25 minutes w

KR> CG and the KR2S

2008-10-12 Thread jeffyor...@qx.net
page http://web.qx.net/jeffyork40/ My KR-2 http://web.qx.net/jeffyork40/Airplane/ to see my KR-2 Email jeffyor...@qx.net - Original Message - From: "Larry&Sallie Flesner" To: "KRnet" Sent: Thursday, January 05, 2006 7:00 AM Subject: KR> CG a

KR> CG and strobes

2008-10-12 Thread Larry&Sallie Flesner
>. >I am getting ready to install wing tip navigation/ strobe lights. They are >the Aeroflash units. I think the total weight of the power supply units is 2 >lbs. Which is 1 lb per unit. >Considering the above and on comparison to your KR, Where are you locating >the 2 lbs of strobe power supplies

KR> CG and the KR2S

2008-10-12 Thread Brian Kraut
. www.engalt.com -Original Message- From: krnet-bounces+brian.kraut=engalt@mylist.net [mailto:krnet-bounces+brian.kraut=engalt@mylist.net]On Behalf Of jeffyor...@qx.net Sent: Thursday, January 05, 2006 5:19 PM To: KRnet Subject: Re: KR> CG and the KR2S OK, all this CG talk has got

KR> CG and the KR2S

2008-10-12 Thread bearlk...@aol.com
Kenny, Colin, Mark, Mark, Dan and group, This is exactly the factor which made me decide to build the KR- the availability of hard, specific data from educated and experienced folks who have the desire to help. This thread will be fied in my wt/bal file. If you have it available, could you

KR> CG and the KR2S

2008-10-12 Thread Dan Heath
I am not exactly sure, but I can tell you that from firewall to the axle of the tailwheel is 136.125. You can take 4 to 6 inches off that to get back to the rudder post. If I remember, I will measure the difference for you tomorrow, if you need an exact number. Remember, this is a stock KR2. Th

KR> CG and the KR2S

2008-10-12 Thread bearlk...@aol.com
Dan, Thanks, I streatched my KrS2 a bit (156" firewall to post) I am looking for the plane with similar dimensions. This entire issue is so critical to stability that all related info is of help. I want to fly two with a certain degree of safety and comfort. I have used the stock dimensions

KR> CG estimate

2008-10-12 Thread Colin Rainey
Bob If you are concerned about it, then I would place jack stands at all 3 places where the gear would be, or close to it, and then get a preliminary weight and balance, measured from the firewall. I encourage use of the firewall because it is in my opnion the most accurate place on the plane to

KR> CG location on a KR2

2008-10-12 Thread Dan Heath
I am not sure that I understand your question. Given this: Datum is Firewall = 0 inches Leading Edge of wing = 12.3125 inches Forward C.G. = 20.125 inchesNote: Specifications state 8-16" aft of the inboard wing leading edge Rear C.G. 26.125 inchesFor N64KR, the CG range is 8" to 14" aft of the in

KR> CG location on a KR2

2008-10-12 Thread bearlk...@aol.com
Dan, Is this set of wt/bal data valid for the old airfoil or the new one? Is it for the KR2 or the KR2s? ( If I read the question correctly, the query was for the cg on a KR2 which would imply the old airfoil; correct? Bob Polgreen

KR> CG location on a KR2

2008-10-12 Thread Dan Heath
That CG is for a KR2 that weighs 670 pounds and has the RAF-48 airfoil, using the Diehl long wings and Diehl fixed gear. 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

KR> CG and the KR2S

2008-10-12 Thread Colin Rainey
Bob I do not believe that the CG limits were changed for the KR2S from those already designed for the KR2. They are still the same, which is why the standard modification is to add one bay forward and one bay rear for the total stretch. Others are going alittle longer and enlargening the tail f

KR> CG and the KR2S

2008-10-12 Thread Mark Langford
>> I do not believe that the CG limits were changed for the KR2S from those already designed for the KR2. They are still the same, which is why the standard modification is to add one bay forward and one bay rear for the total stretch.<< There's only 2" added to the front of the S as opposed to th

KR> CG and the KR2S

2008-10-12 Thread Mark Jones
at www.flykr2s.com - Original Message - From: "Mark Langford" To: "KRnet" Sent: Saturday, December 31, 2005 7:54 AM Subject: Re: KR> CG and the KR2S > >> I do not believe that the CG limits were changed for the KR2S from those > already designed f

KR> CG and the KR2S

2008-10-12 Thread Kenneth Wiltrout
s may vary.--I'm 240lbs and the last passenger was 135 lbs. Kenny 6399U - Original Message - From: "Colin Rainey" To: Sent: Saturday, December 31, 2005 7:24 AM Subject: KR> CG and the KR2S > Bob > I do not believe that the CG limits were changed

KR> CG and the KR2S

2008-10-12 Thread bo...@hatconversions.com
op off the fuel tank. > Your results may vary.--I'm 240lbs and the last passenger was > 135 lbs. > > Kenny 6399U > > > - Original Message - > From: "Colin Rainey" > To: > Sent: Saturday, December 31, 2005 7:24 AM > Subject: KR> CG

KR> CG location on a KR2

2008-10-12 Thread Ryan
What are your CG locations on your personal KR2's , forward of aft ? Ryan

KR> CG question re: a light KR2S

2008-10-12 Thread Eric Anderson
I have been looking at my new plans for a couple of weeks, and thinking about building a 'simple' KR, as light as possible. First, is it conceivable that the CG would be forward enough with a KR2S built light to the following specs?: -1835 engine, hand start, no electrics, Great Plains mount -nos

KR> CG question re: a light KR2S

2008-10-12 Thread Dan Heath
You do not have to be concerned about the balance as you can move the engine forward if you need to. I think that scratch built is lighter, if you are good at it. If you are not so good at it and have to do a lot of filling and re-work, then I think that the premolds are lighter. See N64KR at ht

KR> CG question re: a light KR2S

2008-10-12 Thread VIRGIL N SALISBURY
I think that premolds are lighter, Virg On Sat, 12 Feb 2005 16:09:48 -0500 (Eastern Standard Time) "Dan Heath" writes: > You do not have to be concerned about the balance as you can move the > engine > forward if you need to. > > I think that scratch built is lighter, if you are good at

KR> CG question re: a light KR2S

2008-10-12 Thread Scott Cable
Eric, Alot depends upon the builder, I built my own turtledeck, and although my fuselage was 3 inches wider than plans, my turtledeck weighed half as much as the RR pre-molded part. you can see how I constructed mine at: http://www.kr-builder.org/ScottCable/index.html My turtledeck isn't what y

KR>cg

2008-10-12 Thread Colin
Phillip and others, Not withstanding the KR, a much desired response of an aircraft is that when it gets lighter, the CG moves forward to offset the natural tendency of a lighter aircraft to be less stable. Most certified aircraft have fuel tanks/cells located in a such a way as to cause the CG

KR>cg /wing tanks

2008-10-12 Thread larry flesner
I believe that Larry Flesner has wing tanks also located just behind the spar. This would also accomplish moving the CG forward as fuel burns. >Colin Rainey KR2(td) + My fuel tanks, 12.5 gal each, are located in each outer wing panel. They s

KR>CG

2008-10-12 Thread Colin
Dan asked me to describe my installation for interpolation by others. It is an 1835 VW with large jugs, Dan Diehl case and accessory drive, Zenith carb, direct drive, 52" Culver Prop, and standard engine mounts with 1 inch extensions. I measured from the firewall to the middle of the engine t

KR>CG

2008-10-12 Thread Mike Turner
or in the plans. Did you make these weights and measurements with the aircraft level? Mains that far forward seam somewhat excessive?? Mike Turner - Original Message - From: "Colin" To: Sent: Friday, May 16, 2003 8:25 AM Subject: KR>CG Dan asked me to describe my insta

KR>CG

2008-10-12 Thread Colin
Mike, I got all these numbers from the previous builder that he supplied. I have not performed preliminary weigh-in myself yet. I merely took his numbers, and converted them to the firewall as a datum plane, instead of the tip of the spinner which he used. Colin Rainey KR2(td) crain...@cfl.rr.co