KR> Stromberg Carbs
Anyone using a Stromberg NA-S3 on a VW engine?
KR> Gap between counterweight
I have never scrutinized the plans that closely to notice where on the arm the weights are supposed to be attached but years ago when I used to fly with a friend in his KR2 ZS-WEC, his weights were in fact airfoil shaped like mini wings and acted almost like spades in aerobatic planes it handled like one too). In hind sight this was/is an accident waiting to happen. The chances of a bird hitting exactly there are slim but too high for me. I will be making some kind of plan to ensure nothing can get into that gap from the front. Regards Dene Collett www.denecollett.com -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Jeff Scott Sent: 26 March, 2014 9:12 PM To: KRnet Subject: Re: KR> Gap between counterweight Excellent point Dene. I noticed that many builders put their counterweights below the counterweight arm so in normal cruise it is just below the wing skin in the air stream and the recess for the counterweight is open when the aileron is fully deflected up.
KR> Gap between counterweight
Hi Sid I personally think that covering that gap is a good thing from a safety point of view. We recently had a KR go down killing its occupant and the only clue they could find was a dead bird on the runway. It is assumed that the bird went into the gap between the wing and the counter balance arm, jamming the aileron in the up position. The plane apparently rolled violently and pitched down just after takeoff. I believe the pilot managed to get it level before impact but the plane was destroyed. I had ideas of placing a "knife" in front of and in line with that arm. Regards Dene Collett www.denecollett.com -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of smwood Sent: 26 March, 2014 7:34 PM To: krnet at list.krnet.org Subject: Re: KR> Gap between counterweight The gap around the aileron counter weight on my KR-2 is 1/4-inch at the closest point where the weight comes through the wing skin. The arm goes through the middle of the trailing aux spar; closest clearance on the arm is 1/8-inch. The counter weights are flatter and wider than the plans to keep more inside the upper and lower skins. On the bottom skin I put a small fairing to cover the hole on each wing. The fairings are just big enough to permit the counter weight to go past the bottom skin line and not contact the fairing during full aileron deflection ( plus 10, minus 20 degrees). Clearance at full deflection is 1/8-inch. A 1/8-inch hole in the bottom of the fairing allows water to drain. My thought was a fairing sticking out would be better than a gapping hole as far as aerodynamic streamlining. Don't know if the drain holes whistle. BTW the F-18 models E,F & G have a series of several hundred open small holes around the perimeter of the jet engine air inlets. If you are curious why, contact me off-line. Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA > Kr friends. > I was wondering how many space you all have between the counterweight And > the egde of the hole in the aft of the aft spar. To prevent a aileron jam > I am thinking about 10 mm space around it. > Wat do you guys have ? > Thanks > > Stef. > -- ___ 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: 2014.0.4354 / Virus Database: 3722/7251 - Release Date: 03/26/14
KR> Gap between counterweight
N56ML's ailerons are balanced across the entire nose, by filling a 4130 tube with lead, then hogging out the nose foam with a dull spade bit, slathering it up with epoxy and micro, and then encapsulating it in place with carbon fiber on the ends. I guess I did that in such a hurry (it was way too easy) I didn't even get a picture of it, but you can see the pink foam in the nose where I put it at http://www.n56ml.com/99101051.jpg. My arrangement weighs a little more than the KR "plans" method because of the shorter moment arm, but I don't have a gap there to produce drag all the time either, and no way is the weight going to fall off and cause flutter! This picture also shows my rather large split flaps, as well as end-plate template that shows a more tapered aileron...the I didn't build either. There's a lot more on my outer wings at http://www.n56ml.com/owings.html ... Mark Langford ML at N56ML.com website at http://www.N56ML.com
KR> Gap between counterweight
Kr friends. I was wondering how many space you all have between the counterweight And the egde of the hole in the aft of the aft spar. To prevent a aileron jam I am thinking about 10 mm space around it. Wat do you guys have ? Thanks Stef. -- Steph and his dad are building the KR-2S see http://www.masttotaalconcept.nl/kr2
KR> Gap between counterweight
Excellent point Dene. ?I noticed that many builders put their counterweights below the counterweight arm so in normal cruise it is just below the wing skin in the air stream and the recess for the counterweight is open when the aileron is fully deflected up. ?I put my counterweights on top of the counterweight arm so it is always inside the wing and only comes partially out of the pocket it's in when the aileron is fully deflected, but never leaves a gap something could fly into. ? To be perfectly honest, I don't recall whether the plans called for the weight to be on top or under the counterweight arm, and I wasn't real big on following the plans anyway. ?(They were more of a suggestion to me than a plan.) ?So just for discussion, how did others mount their counterweights? ?And why? Addionally, I think many of us remember Jim Faughn losing an aileron counterweight while doing a fast pass at the gathering many years ago in Red Oak. ?Apparently the aluminum L bracket fatigued and failed. ?There was a recommendation to change to a steel L bracket after there. ?I never did and at 1000+ hrs, still have the original weights in the original place. ?Any discussion on the L brackets for the Aileron Counterweights? -Jeff Scott Los Alamos, NM > - Original Message - > From: Dene > Sent: 03/26/14 12:30 PM > To: 'KRnet' > Subject: Re: KR> Gap between counterweight > > Hi Sid > I personally think that covering that gap is a good thing from a safety > point of view. > We recently had a KR go down killing its occupant and the only clue they > could find was a dead bird on the runway. > It is assumed that the bird went into the gap between the wing and the > counter balance arm, jamming the aileron in the up position. The plane > apparently rolled violently and pitched down just after takeoff. > I believe the pilot managed to get it level before impact but the plane was > destroyed. > I had ideas of placing a "knife" in front of and in line with that arm. > > Regards > Dene Collett > www.denecollett.com
KR> Gap between counterweight
The counterweights on my KR are covered with fairings that were molded over plastic Easter eggs from Walmart. Completely covers the hole in the bottom of the wing. Dennis Dyer Pine, CO N5CJ http://www.mtnguy.com/kr2 --- jscott.planes at gmx.com wrote: From: "Jeff Scott" To: "KRnet" Subject: Re: KR> Gap between counterweight List-Post: krnet@list.krnet.org Date: Wed, 26 Mar 2014 15:11:57 -0400 Excellent point Dene. ?I noticed that many builders put their counterweights below the counterweight arm so in normal cruise it is just below the wing skin in the air stream and the recess for the counterweight is open when the aileron is fully deflected up. ?I put my counterweights on top of the counterweight arm so it is always inside the wing and only comes partially out of the pocket it's in when the aileron is fully deflected, but never leaves a gap something could fly into. ? To be perfectly honest, I don't recall whether the plans called for the weight to be on top or under the counterweight arm, and I wasn't real big on following the plans anyway. ?(They were more of a suggestion to me than a plan.) ?So just for discussion, how did others mount their counterweights? ?And why? Addionally, I think many of us remember Jim Faughn losing an aileron counterweight while doing a fast pass at the gathering many years ago in Red Oak. ?Apparently the aluminum L bracket fatigued and failed. ?There was a recommendation to change to a steel L bracket after there. ?I never did and at 1000+ hrs, still have the original weights in the original place. ?Any discussion on the L brackets for the Aileron Counterweights? -Jeff Scott Los Alamos, NM > - Original Message - > From: Dene > Sent: 03/26/14 12:30 PM > To: 'KRnet' > Subject: Re: KR> Gap between counterweight > > Hi Sid > I personally think that covering that gap is a good thing from a safety > point of view. > We recently had a KR go down killing its occupant and the only clue they > could find was a dead bird on the runway. > It is assumed that the bird went into the gap between the wing and the > counter balance arm, jamming the aileron in the up position. The plane > apparently rolled violently and pitched down just after takeoff. > I believe the pilot managed to get it level before impact but the plane was > destroyed. > I had ideas of placing a "knife" in front of and in line with that arm. > > Regards > Dene Collett > www.denecollett.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 _ Get your free e-mail address http://www.mtnguy.com
KR> Gap between counterweight
The gap around the aileron counter weight on my KR-2 is 1/4-inch at the closest point where the weight comes through the wing skin. The arm goes through the middle of the trailing aux spar; closest clearance on the arm is 1/8-inch. The counter weights are flatter and wider than the plans to keep more inside the upper and lower skins. On the bottom skin I put a small fairing to cover the hole on each wing. The fairings are just big enough to permit the counter weight to go past the bottom skin line and not contact the fairing during full aileron deflection ( plus 10, minus 20 degrees). Clearance at full deflection is 1/8-inch. A 1/8-inch hole in the bottom of the fairing allows water to drain. My thought was a fairing sticking out would be better than a gapping hole as far as aerodynamic streamlining. Don't know if the drain holes whistle. BTW the F-18 models E,F & G have a series of several hundred open small holes around the perimeter of the jet engine air inlets. If you are curious why, contact me off-line. Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA > Kr friends. > I was wondering how many space you all have between the counterweight And > the egde of the hole in the aft of the aft spar. To prevent a aileron jam > I am thinking about 10 mm space around it. > Wat do you guys have ? > Thanks > > Stef. > --
KR> High Altitude
"Good to hear I'll be able to fly over most of the obstacles between here and there." On east/west trips I always find myself crossing the Rockies about 50 miles south of Taos. I routinely cruise at 13.5 and 14.5 and use my homebrew O2 system which I described in previous posts "Flying High." At 14.5 I'm maxed out on altitude. The last thousand feet I'm really nursing it up. My Sterba 52 x 56 is optimized for cruising, not climbing. Fuel economy is fantastic at these altitudes - about 3 gallons per hour with the GP2180/EFS-2 turning 3100-3200. Average overall speed on my cross country trips is 149 MPH. Some aerodynamic clean-up would improve that but I seem to leave it at the bottom of my "to do" list. I mainly need to reduce the size of my engine air inlets. Mike Stirewalt KSEE Ken Cottle's KR-1? Old School Yearbook Pics View Class Yearbooks Online Free. Search by School & Year. Look Now! http://thirdpartyoffers.juno.com/TGL3141/51b0553e531b07ea2st01vuc
KR> Gap between counterweight
That should be more than adequate. ?I haven't looked at mine in a number of years, but doubt that I have that much clearance. ?Just satisfy yourself that the counterweight can not touch or bind under any circumstances. BTW, your construction work looks really nice. ?Love the work on your wing tips. -Jeff Scott Los Alamos, NM > - Original Message - > From: stefkr2 at kpnmail.nl > Sent: 03/26/14 08:36 AM > To: Kr net Kr net > Subject: KR> Gap between counterweight > > Kr friends. > I was wondering how many space you all have between the counterweight And the > egde of the hole in the aft of the aft spar. To prevent a aileron jam I am > thinking about 10 mm space around it. > Wat do you guys have ? > Thanks > > Stef. > -- > Steph and his dad are building the KR-2S see > http://www.masttotaalconcept.nl/kr2
KR> (no subject)
High altitude KR flying story 2014 Back in the day 1980's > Benton Air Field, Redding ,Ca the airshow fly in; a Single seat KR was there it really looked sharp the black and yellow checkerboard cowling and gold colored fuselage looked like a P51. The pilot was from Weaverville,Ca had his own runway along the top of a ridge in the Cascades. The pilot was a real gentleman aviator and was in fact a WW2 P51 pilot some of you certainly remember him I forgot his name but his motivation was instrumental in my KR enthusiasm. The story of him flying his KR1 from Benton airfield to Oshkosh,Wisconsin non-stop at 22,000 MSL with the turbo charged VW was true and impressed me. Watching him fly was also awesome. The story he spoke of using bondo to touch up hangar rash his own comment on his "bondo bomber" was humorous ? guentheraviator at yahoo.com
KR> Corvair College #29
I'll be coming up from VRB, and hope to run my 3000cc engine... My fourth CC. Bill Zorc 772-713-0607 cell Sent from my iPad > On Mar 26, 2014, at 6:10 AM, Paul Visk wrote: > > Just wondering if anyone is going to CC #29 in Leesburg Fl. this weekenk. > I'll be there to observe. I'll be working on my engine at CC #30 > > > Paul Visk > Belleville, Il > 618-406-4705 > > Sent from my Samsung Galaxy S?4 > ___ > 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> Corvair College #29
Just wondering if anyone is going to CC #29 in Leesburg Fl. this weekenk. I'll be there to observe. ?I'll be working on my engine at CC #30 Paul Visk Belleville, Il 618-406-4705 Sent from my Samsung Galaxy S?4
KR> I PAD / TABLET GPS UPDATE
Just a short info here for anyone who might be interested. Maybe all of you know this but it was news to me but then again I am technically challenged! After purchasing my samsung tab 3 and downloading the avare navigation application I discovered that you do not need a wifi connection to operate the application. Evidently the GPS chipset works as its own and therefore you will not use up any data well using this application. So far I really like this particular app although I'm sure there are other really good ones out there. Doran N186RC
