KR> Cactus Fly In
The weather in the Southwest is looking good for this weekend, so I anticipate flying my KR to the Cactus Fly In at Casa Grande, AZ on Friday. I'm going to run down to Ryan Field in Tucson Saturday morning to take look at a Bellanca project a friend bought, have lunch at the restaurant on Ryan Field, then should be back at Casa Grande by mid afternoon. If any of you guys are around, stop by to say howdy. -Jeff Scott Los Alamos, NM
KR> Throttle cables
This really is a personal preference issue as any of the standard throttle cables/quadrants will work just fine. My KR has a vernier throttle in the center, my SuperCub has the throttle mounted into the left side trim panel with a friction adjustment under the panel. My last plane before that had a center throttle quadrant. I find that in the KR I like the fine control of dialing a tiny bit of throttle in or out with the vernier control. I don't ever give it a thought as it took me a minute or two to recall which type of throttle I have. On both planes, I used an A-740 RACHET CONTROL cable for both mixture and carb heat. This type of cable is like any other push/pull bowden cable, but has a series of detents on the handle, so it clicks as it slides in or out and won't creep. That gives me a good reference when setting the mixture. (richen 1 click or lean 2 clicks) Jeff Scott Los Alamos, NM jeffsplanes.com > > I believe Tony Bingelis would say to make sure the two control knobs are > different. Different color is obvious, but also different sizes, and > perhaps different types of lock to prevent accidental activation of the > throttle when you intended to lean the mixture, for example. > Mark Langford, Harvest, AL > ML at N56ML.com > www.N56ML.com
KR> Throttle cables
>Back in the day when I was flying club rentals, we had well used >C-140's. One day, on final at ~1800rpm, I pull the throttle and >nothing, still 1800, sawed the throttle back and forth some and it >went to idle. WTH! A check showed the throttle cable was loose in >the clamp at the carb. What surprised me was the cable. It was >little more then a lawn mower cable. Very primitive. A week later a >new guy with his really nice C-140 had a similar issue at about >2100. Nor realizing the problem, he tried to go around and ended up >hanging nose down in the tops of 50' trees. No injuries but the >plane was a write off. >-- >Wayne DeLisle Sr. ++ You might want to check to see if the A working on your airplanes actually has a license. With the proper clamp, properly installed, that should never happen. Larry Flesner
KR> Throttle cables
Good And interesting story. Talking about the throttle I have a question. What are you all using?. A normall throttle with a friction or the vernier system. What is the experiance? I have to buy it soon but I am in a doubt. Stef -- Steph and his dad are building the KR-2S see http://www.masttotaalconcept.nl/kr2 >Origineel Bericht >Van : krnet at list.krnet.org >Datum : 03/03/2015 14:45 >Aan : krnet at list.krnet.org >Onderwerp : KR> Throttle cables > >Back in the day when I was flying club rentals, we had well used >C-140's. One day, on final at ~1800rpm, I pull the throttle and nothing, >still 1800, sawed the throttle back and forth some and it went to idle. >WTH! A check showed the throttle cable was loose in the clamp at the >carb. What surprised me was the cable. It was little more then a lawn >mower cable. Very primitive. A week later a new guy with his really nice >C-140 had a similar issue at about 2100. Nor realizing the problem, he >tried to go around and ended up hanging nose down in the tops of 50' >trees. No injuries but the plane was a write off. >-- >Wayne DeLisle Sr. > >___ >Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. >To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org >please see other KRnet info at http://www.krnet.org/info.html >see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change >options >
KR> Throttle cables
Jeff, I also have a vernier, but for the mixture as with this one, you have to push a button to move it in and out, but then turn it for fine control. Do they make a vernier for the throttle, where you do not have to push a button on the end to move it in and out? If that is what you have how would it be identified. My Panther Building Documentation at PantherBuilder Web Site Daniel R. Heath -?Lexington, SC -Original Message- My KR has a vernier throttle in the center
KR> Throttle cables
I believe Tony Bingelis would say to make sure the two control knobs are different. Different color is obvious, but also different sizes, and perhaps different types of lock to prevent accidental activation of the throttle when you intended to lean the mixture, for example. I happen to have had this experience, on one of my first flights. Both throttle and mixture were the same size knobs, although one was red and the other black. I was climbing through crosswind and beginning to turn downwind and pulled the throttle back to end the climb and reach a lower downwind RPM. But I wasn't looking at the knobs...just operating by location, (without thinking) and pulled the "throttle" back quickly. It was actually the mixture knob, and the engine promptly quit. Not a good thing while in the pattern! It took a few seconds to determine what happened and it restarted instantly, but it could have been a lot worse! For that reason, I changed out the mixture to a much smaller vernier knob with a completely different shape. I never did that again, and set up N891JF in a similar manner. Mark Langford, Harvest, AL ML at N56ML.com www.N56ML.com
KR> Throttle cables
I have the opposite experience from the comment below. I built my plane with the vernier throttle and mixture. They are side by side that a couple of my fingers fit between them (right handed) and my thumb rests on the push button of the throttle for instant movement for take off and landing. Actually it is more accurate that my right hand is resting on both and I can and have manipulated both of them at the same time. In flight I often use the vernier throttle to make small adjustments to the rpm's (or speed). I love it and would not want it any other way. I never even thought about changing it for the plane I'm working on now. Another reason that I went with the vernier throttle was that it was always in the positive lock. If I am not wrong many (all ??) push/pull have a seperate twist lock of some kind??? Someone else mentioned the actual cable size bing small on a certified aircraft in one of the mis-adventures earlier. I am pretty certain that there is different cable sizes available when ordering. I think that I have the .095 cable in mine for both throttle and mixture. I fooled with atuo store cables which became clear was a waste of my time and some money. Again this is my choice and works great for me, but there aare other ways and throttle quandrants is a whole nother arena. Joe Horton Subject: Re: KR> Throttle cables The standard would be a friction lock type. The vernier takes a bit to get used to as a throttle, (must be a twisty thing),but would work. If you have never used a vernier throttle, I would not recommend using one on a first flight in a newly built experimental aircraft. No heckling from the Bonanza folks. Roger rbaalman at cox.net > Talking about the throttle I have a question. What are you all using?. A > normall throttle with a friction or the vernier system. What is the > experiance? I have to buy it soon but I am in a doubt. ___
KR> UK aircraft grade lumber supplier?
Rogelio The sitka grown in the UK is only good for matchsticks and construction it grows too fast. We use it graded to C16 for construction which is on the limit. Baltic pine is too dense and not as strong. I have got Douglas fir spars on mine, but they are heavy compared to spruce and must be North American (see above for UK grown Spruce) Hardwoods in general have too short a fibre length to be any good. Sorry stuck with Spruce... Peter -Original Message- From: Rogelio M. Serrano Jr. via KRnet List-Post: krnet@list.krnet.org Date: 03 March 2015 12:26 To: Rogelio Serrano Cc: KRnet Subject: Re: KR> UK aircraft grade lumber supplier? On Tue, Mar 3, 2015 at 12:12 PM, Rogelio M. Serrano Jr. wrote: > > Spruce is like Gold nowadays. Which is a good substitute? Baltic Pine? > bald cypress? > > Anybody got a stand of stika spruce they can spare? ;-) > Half of commercial plantations in the UK actually plant Sitka Spruce. But they are mostly used for paper, furniture and packing crates. Packing crates! ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options - No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5645 / Virus Database: 4299/9217 - Release Date: 03/03/15
KR> UK aircraft grade lumber supplier?
Im planning to use the cf for the main spar and a second spar at 50% chord, wing skins and ailerons and flaps and landing gear. But im going to build a stock kr2 for now. I was trying to copy the colomban mc 100. high wing loading (about same as a cessna!). small wetted surface area and light weight. the gear needs to be taller to accommodate the flaps. which is composed of a fowler flap under a plain flap, and it needs to be very torsionally rigid so i can actuate it reliably from the fuselage. And the wing root needs to be 5.4 inches thick using a different 15 % airfoil. On Mon, Mar 2, 2015 at 12:09 AM, Flesner via KRnet wrote: > At 06:02 PM 3/1/2015, you wrote: >> >> I just ordered flat tow bid uni and triax carbon fiber fabric for my >> spars. > > ++ > How are you planning to use carbon fiber on the spars? The plans call for > spruce and ply only. > > Larry Flesner > > >
KR> Throttle cables
Normal with friction lock. > On Mar 3, 2015, at 11:28 AM, Roger Baalman via KRnet list.krnet.org> wrote: > > > The standard would be a friction lock type. The vernier takes a bit to get > used to as a throttle, (must be a twisty thing),but would work. If you have > never used a vernier throttle, I would not recommend using one on a first > flight in a newly built experimental aircraft. No heckling from the Bonanza > folks. > Roger > rbaalman at cox.net > > > >> Talking about the throttle I have a question. What are you all using?. A >> normall throttle with a friction or the vernier system. What is the >> experiance? I have to buy it soon but I am in a doubt. > > > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options
KR> Throttle cables
The standard would be a friction lock type. The vernier takes a bit to get used to as a throttle, (must be a twisty thing),but would work. If you have never used a vernier throttle, I would not recommend using one on a first flight in a newly built experimental aircraft. No heckling from the Bonanza folks. Roger rbaalman at cox.net > Talking about the throttle I have a question. What are you all using?. A > normall throttle with a friction or the vernier system. What is the > experiance? I have to buy it soon but I am in a doubt.
KR> UK aircraft grade lumber supplier?
On Tue, Mar 3, 2015 at 12:12 PM, Rogelio M. Serrano Jr. wrote: > > Spruce is like Gold nowadays. Which is a good substitute? Baltic Pine? > bald cypress? > > Anybody got a stand of stika spruce they can spare? ;-) > Half of commercial plantations in the UK actually plant Sitka Spruce. But they are mostly used for paper, furniture and packing crates. Packing crates!
KR> UK aircraft grade lumber supplier?
Ill build it stock for now. On Mon, Mar 2, 2015 at 8:48 AM, JAMES DUFF wrote: > As Mike says. > > If you're flying under UK law it needs to be built as per plans which is > what the design has been assessed against, unless it's a KR2S in which case > it's as per plans plus some mandatory modifications which the LAA will send > you drawings of. > I will do that later. > It is possible to modify from the plans, but mods need to be approved via a > documentation package demonstrating by calculation their safety and > integrity. Structural mods will also require physical load testing. > > Dudley Pattison of the Swindon Aircraft Timber Company was good, but I hear > he's trying to retire. > Spruce is like Gold nowadays. Which is a good substitute? Baltic Pine? bald cypress? Anybody got a stand of stika spruce they can spare? ;-) > If built under UK law it needs to be built with Sitka Spruce and GL1 grade > birch ply. You can use GL2 ply for non-structural stuff, but I can't think WOW! That Law needs to be changed! > of anything non-structural on a plans-built KR2 off the top of my head. > > I would most strongly suggest you heed Mike's advice and contact the LAA for > advice before proceeding any further. > > Regards, > > Jamie >
KR> UK aircraft grade lumber supplier?
On Mon, Mar 2, 2015 at 10:34 AM, Dan Heath via KRnet wrote: > So, I guess that if you were to build a "one-up", it would be as bad as > building a new certified aircraft here in the US. Seems like a really good > way to encourage "experimentation". > Its not that bad really. But I think ill consider flying to the US and build a cf wing there... Don't know if i could fly it back here though...
KR> UK aircraft grade lumber supplier?
Hi Peter, Thank you for the heads up. I got so excited about the CF i forgot about the LAA. What mods are you doing exactly? On Mon, Mar 2, 2015 at 11:24 AM, Peter Drake wrote: > Hi Rogelio > > I am based in Herefordshire and am building a much modified KR2s > (www.peterskr2s.co.uk) > DO NOT MAKE MODIFICATIONS LIGHTLY AND WITHOUT APPROVAL FROM LAA ENGINEERING, > you will encounter big hassles if you do and you will not get a permit to > fly without. > I am speaking from personal experience! > > Getting spruce in the UK is difficult. However I have found a source in > Oxfordshire called Bygone Aviation near Witney. (Matt at bygoneaviation.com). > > Give me a call on 01497 847340 if you want a chat. > > Cheers > > Peter Drake >
KR> UK aircraft grade lumber supplier?
Hi Mark, That means individuals cannot do it alone anymore. On Tue, Mar 3, 2015 at 3:13 AM, Mark Langford via KRnet wrote: > > So yes, carbon fiber spars will almost certainly require more work than you > can imagine to get past Engineering. The few pounds you will save in the > effort will likely cost years and thousands of BP. But some people enjoy > the chase and the sense of accomplishment at pulling it off, so feel free to > blaze a trail for us... > I designed a small wing with big flaps. Actually double flaps and it needs the rigidity of carbon fiber to work. The root chord is 38 inches and the tip is 24 inches. Wood just doesnt cut it for a max gross of 900 lbs and a load factor of 7 G. A quarter inch thick 4 inch wide cf spar cap is already overkill and that's way lighter than wood. Besides Sitka Spruce is already approaching the price of Gold. Its sustainable and all but nobody plants them anymore. The fuselage need to be taller. The elevator needs to become a stabilator. The vert needs to become an all moving rudder, Like the Vee pee. The front fuse need to be shorter and straighter, 41 inches wide and parallel to the firewall. And the landing gear leg needs to be cf and really light and out of the prop wash. The game changer for me in terms of carbon fiber is the flat tow fabrics and reduced cost of triax. Its way better than the earlier fabrics.
KR> UK aircraft grade lumber supplier?
Hi Peter, Doing it alone is very very hard. On Tue, Mar 3, 2015 at 8:52 AM, Peter Drake via KRnet wrote: > Mark > I thought I enjoyed a chase, but that one is wearing a bit thin now! > > Peter Drake >
KR> Throttle cables
Don't know about anyone else, but I'm using a Cessna-style vernier/push-pull 'combo' cable for both mixture & throttle... Push the button in to push/pull, or don't push it & twist... 'course, coming from C172s, I'm used-to that setup... On Tue, Mar 3, 2015 at 9:28 AM, Roger Baalman via KRnet < krnet at list.krnet.org> wrote: > > The standard would be a friction lock type. The vernier takes a bit to > get used to as a throttle, (must be a twisty thing),but would work. If > you have never used a vernier throttle, I would not recommend using one on > a first flight in a newly built experimental aircraft. No heckling from the > Bonanza folks. > Roger > rbaalman at cox.net > > > > > Talking about the throttle I have a question. What are you all using?. A > normall throttle with a friction or the vernier system. What is the > experiance? I have to buy it soon but I am in a doubt. > > > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options >
KR> UK aircraft grade lumber supplier?
Can we change the subject on this thread? Doesn't look like finding wood anymore. Patrick Driscoll Saint Paul, MN patrick36 at usfamily.net www.pensbypat.com If you can read this, Thank a teacher If you are reading this in English, thank a veteran
KR> UK aircraft grade lumber supplier?
Mark I thought I enjoyed a chase, but that one is wearing a bit thin now! Peter Drake -Original Message- From: Mark Langford via KRnet List-Post: krnet@list.krnet.org Date: 03 March 2015 03:13 To: KRnet Subject: Re: KR> UK aircraft grade lumber supplier? But some people enjoy the chase and the sense of accomplishment at pulling it off, so feel free to blaze a trail for us... Mark Langford ML at N56ML.com http://www.n56ml.com ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options - No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5645 / Virus Database: 4299/9216 - Release Date: 03/02/15
KR> Throttle cables
Back in the day when I was flying club rentals, we had well used C-140's. One day, on final at ~1800rpm, I pull the throttle and nothing, still 1800, sawed the throttle back and forth some and it went to idle. WTH! A check showed the throttle cable was loose in the clamp at the carb. What surprised me was the cable. It was little more then a lawn mower cable. Very primitive. A week later a new guy with his really nice C-140 had a similar issue at about 2100. Nor realizing the problem, he tried to go around and ended up hanging nose down in the tops of 50' trees. No injuries but the plane was a write off. -- Wayne DeLisle Sr.
