KR> Paint
Well, I was always told that every epoxy has a temperature at which it will soften, and that was why shades of white were used in order to keep the temperature below that softening point. > On Dec 14, 2013, at 2:03 PM, "Nerobro" wrote: > > It's a foam thing. White stops the wings and tail from getting to hot, and > having the foam deterioate. You want to reflect, rather than absorb uv to > keep temps down. >> On Dec 14, 2013 11:58 AM, "Doran Jaffas" wrote: >> >> This may sound like a rather dumb question but all of the aircraft >> I've seen (KRs) anyway sre painted white with trim colors. Is there any >> real reason why white is always the base color? I know darker colors absorb >> UV rays but does anybody have any experience with this good or bad? My >> experience in painting is tube and rag or sheet metal. >>Doran >> N186RC >> ___ >> 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 > ___ > 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> Paint
It's a foam thing. White stops the wings and tail from getting to hot, and having the foam deterioate. You want to reflect, rather than absorb uv to keep temps down. On Dec 14, 2013 11:58 AM, "Doran Jaffas" wrote: > This may sound like a rather dumb question but all of the aircraft > I've seen (KRs) anyway sre painted white with trim colors. Is there any > real reason why white is always the base color? I know darker colors absorb > UV rays but does anybody have any experience with this good or bad? My > experience in painting is tube and rag or sheet metal. > Doran > N186RC > ___ > 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> The need for Dr. Dean hinges
I've rattled the rudder and elevator of almost every KR that's been parked at a Gathering in the last 20 years, and some of the high-timers have as much as 3/16" of slop back there. Probably the worst is a high-time KR2 that's famous for pulling high-G maneuvers while flying with a passenger above the gross weight design limits. Having seen him do this and get away with it makes me think that the stock hinges are probably sufficient, however. I am a fan of the oil impregnated bushings though. They are cheap, will definitely last longer than steel-on-aluminum, and are easy to install. I'm not sure if my website says this, but I used a piece of 1/4" Nylaflow tubing as a spacer on the inside to ensure the sleeved (non-flanged) bushings didn't slide out of the inside aluminum angle, even though they were also locked in place with Loctite sleeve retainer. As for the extra hinges, I did that because I made my horizontal stabilizer and rudder are longer, and later heard that the Aussie government was requiring the same for KR builders down under. Of course if they're anything like the Brits, it could be overkill! I do suspect that 3/16" bolts are overkill, perhaps chosen in an effort to keep all the nuts and bolts in the same "family", like 5/8" x 5/8" spruce that is also ubiquitous in the KRs. #8's could probably be used, but then the bearing area on the aluminum would be smaller and the hinges would wear even faster. You could then add bushings, but then you'd be almost as heavy as with #10 bolts anyway. Bottom line is that if money is a big factor, aluminum seems to work. A look at some of the old tube and fabric airplanes will amaze you at what works for a hinge back there. I don't remember anybody fluttering a KR elevator. Speaking of that, Troy Petteway "un"-balanced his elevator when he rebuilt his tail with longer surfaces, yet continued to burn up the sky at well over 200 mph with impunity. So there's some more weight in the tail that can probably go away... Mark Langford ML at N56ML.com website at http://www.N56ML.com
KR> Paint
This may sound like a rather dumb question but all of the aircraft I've seen (KRs) anyway sre painted white with trim colors. Is there any real reason why white is always the base color? I know darker colors absorb UV rays but does anybody have any experience with this good or bad? My experience in painting is tube and rag or sheet metal. Doran N186RC
KR> Cowl Construction
Thanks for the pics Sid. Keep them coming. On Dec 13, 2013 12:09 PM, "Sid Wood" wrote: > Here is a picture of the plug for the new cowl. The Styrofoam and micro > resembles a toasted marshmallow. Had to remove the nose wheel to get > access for the power sander on the bottom. It does look like a tail > dragger. Six gallon jugs of water on the horizontal stab keep the tail > firmly on the deck. Should have put some plastic over the canopy before > starting sanding; stuff happens. > > https://s3.amazonaws.com/expercraft/sidwood/55590932052ab37aa7da25.jpg > > Sid Wood > Tri-gear KR-2 N6242 > Mechanicsville, MD, USA > > > > > > > ___ > 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> The need for Dr. Dean hinges
I have had no issues with the original U channel hinges. Over 500 hours now on my KR2S. I inspect regularly and don't see why anything more is needed. People have talked about sloppy fitting, but that is probably due to the builder, not the design. Rob Schmitt N1852Z _www.robert7721.com_ (http://www.robert7721.com) In a message dated 12/14/2013 5:24:16 A.M. Central Standard Time, PPaulVsk at aol.com writes: I'm probably going with Dr. Dean hinges on my tail because that's what everyone is doing now. But, has anyone heard of the one of the original U channel hinges failing or wearing out and had to be changed? The price for one hinge set up is about $11.00 at Wicks. Times nine hinges or so. You could buy a lot of U channel for that price. Paul Visk Belleville Il. 618-406-4705 http://www.mykitlog.com/PaulVisk/ ___ 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> The need for Dr. Dean hinges
See Mark's description... http://www.n56ml.com/koilite.html John Bouyea -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Robert7721 at aol.com Sent: Saturday, December 14, 2013 6:10 AM To: krnet at list.krnet.org Subject: Re: KR> The need for Dr. Dean hinges I have had no issues with the original U channel hinges. Over 500 hours now on my KR2S. I inspect regularly and don't see why anything more is needed. People have talked about sloppy fitting, but that is probably due to the builder, not the design. Rob Schmitt N1852Z _www.robert7721.com_ (http://www.robert7721.com) In a message dated 12/14/2013 5:24:16 A.M. Central Standard Time, PPaulVsk at aol.com writes: I'm probably going with Dr. Dean hinges on my tail because that's what everyone is doing now. But, has anyone heard of the one of the original U channel hinges failing or wearing out and had to be changed? The price for one hinge set up is about $11.00 at Wicks. Times nine hinges or so. You could buy a lot of U channel for that price. Paul Visk Belleville Il. 618-406-4705 http://www.mykitlog.com/PaulVisk/ ___ 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 ___ 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> The need for Dr. Dean hinges
>but why would you need more than 4, 2 for the horiz and 2 >for the rudder? 3 on the rudder 5 on the elevator Mark Jones (N886MJ) Stevens Point, WI E-mail: flykr2s at charter.net Web: www.flykr2s.com
KR> The need for Dr. Dean hinges
No, I never heard of one failing. I have stock hinges and they are working as well today as they did when they were installed. However, I only have around 200 hours on the plane. It is early in the morning and I may not be thinking clearly, but why would you need more than 4, 2 for the horiz and 2 for the rudder? See N64KR at http://KRBuilder.org - Then click on the pics? Peoples Choice at 2013 - KR Gathering in Mt. Vernon, Il ? MVN Best KR at 2013 - KR Gathering in Mt. Vernon, Il ? MVN Best Interior at 2013 - KR Gathering in Mt. Vernon, Il ? MVN Best Paint at 2013 - KR Gathering in Mt. Vernon, Il ? MVN Best Firwwall Forward at 2013 - KR Gathering in Mt. Vernon, Il ? MVN Daniel R. Heath -?Lexington, SC -Original Message- I'm probably going with Dr. Dean hinges on my tail because that's what everyone is doing now. But, has anyone heard of the one of the original U channel hinges failing or wearing out and had to be changed? The price for one hinge set up is about $11.00 at Wicks. Times nine hinges or so
