KR> Pre-Registration for Gathering
KRnetters, I will be printing the name tags next week for the Gathering. I have to do it this early because of taking a trip between now and the KRGathering. If you want your very own personalized, pre-printed, *valuable (a relative term), commemorative name tag just Pre-register this week at: krgathering.org *Wear it proudly while begging and groveling for a KR ride--it may help. Thanks, Rich Hartwig
KR> Flight Test Plans
Is this a written regulation or a bureaucrat making up his own rules? Or can you just follow what is suggested in FAA Advisory Circular 90-89A ? I have not been able to find any requirements. Rich Hartwig Re: "My FAA inspector stated that I had to have a satisfactory flight test plan for his review to get an airworthiness signature."
KR> Trim
Trim!!! No...not as in airplane, but in your messages. We are getting a lot of one sentence posts followed by 40 lines of repeated garbage. It only takes a couple of seconds to highlight the un-needed repeats and delete them before sending your post to the list. It is a KRnet rule and makes reading the digest a lot easier. If you don't know how to do it, just ask and someone on the list will be able to help you. Thanks, Rich Hartwig
KR> Registration-Name tags
Please be sure to pre-register within the next two days..that is...if you want to proudly wear a personalized name tag at the gathering. I will be making tags using the names that are registered by Aug 30. Hoping to see you at MVN!!! Rich Hartwig Waunakee WI
KR> header tank-
"However, the percentage of deaths per mile driven happening because of vehicle accidents has remained fairly constant over the years." Todd, the automobile safety guy who gave you this information was way off base. Deaths per mile driven have decreased greatly over the years and the trend continues. Safety engineering in cars is one of several reasons. Rich Hartwig Waunakee WI
KR> Cutting round holes in aluminum
A router with a trammel base and using a 1/4 inch bit will cut perfect holes of any size quickly in aluminum. You can buy a trammel base or make an acrylic base for the router and drill a 1/8 inch pivot hole in the base at the proper radius. A trim router is a perfect size to use and you can buy one for about $25 bucks at Harbor Fright (intentional mis-spelling.) If you want to spend a few more bucks, get one with a plunge base. Secure a sacrificial piece of ply or particle board under the aluminum panel sheet and make sure the hole for the pivot pin goes through the aluminum and well into the sacrificial piece. I use a couple of pieces of double side tape to stick the portion that will be cut out to the underlying particle board. This keeps the cutout from rotating wildly as the bit finishes the cut. This will give you holes that are the equal of CNC holes. Always cut a test hole in scrap to make sure your technique and measurements are correct. For .125 I would make several slow shallow passes. If you are cutting instrument holes in 1/4 inch ply--a Dremel tool with 1/8 inch router bit has enough power to rout them. I use this setup for cutting sound holes in ukuleles. Be careful, move slowly and use eye protection whenever using a router and clamp the assembly to your table to make sure nothing can move. . Rich Hartwig Waunakee WI
KR> Kr2 List?
Please...please...trim the message you are responding to so that we don't have to keep scrolling through the repeated messages. If you don't know how or don't know what I'm talking about I'm sure someone on the list will give you tech supportand...uh...let's talk about airplanes. Dick Hartwig Waunakee WI
KR> WD-40
Joe wrote: "I may have in the past gave it a shot of WD-40 thinking that it was good for it." Joe, You are correct in considering that the WD-40 used in your throttle cable could possibly be the problem. WD-40 was originally designed to prevent surface corrosion, but also has limited use as a penetrant and lubricant. The problem is that the lubricant over time can change and become very gummy. This can be a problem when the WD-40 is in enclosed areas that are difficult to clean. It is not uncommon for this to cause malfunctions in semi-auto rifles and pistols. (The penetrating qualities can also contaminate primers in ammunition.) I would suggest not using WD-40 on close tolerance moving parts in an aircraft unless they are easily accessible for thorough cleaning and proper lubrication. Rich Hartwig Waunakee WI
KR> Trim messages please
Enough repeats of all the Hoover messages.Please trim messages you are replying to. Rich Hartwig Waunakee WI
KR> HAPI engine
Joe, For information concerning cracking of HAPI flywheels, check the archives at: http://www.maddyhome.com/krsrch/search and search "HAPI flywheels" Rich Hartwig Waunakee WI
KR> HAPI engine
Joe, For information concerning cracking of HAPI flywheels, check the archives at: http://www.maddyhome.com/krsrch/search and search "HAPI flywheels" Rich Hartwig Waunakee WI
KR> Re: Folding wings
A few years ago Mark L had a link on his website about quick detach wing fittings from a builder in the UK. The link was from Willie Wilson and I believe the builder was a K. Atkinson on his KR2 G-BVIA. The link no longer works, but maybe someone has a copy of it. The system looked simple enough to build, didn't add a lot of weight and appeared to make wing removal after flight practical. Rich Hartwig Waunakee WI
KR> Re: Folding wings
A few years ago Mark L had a link on his website about quick detach wing fittings from a builder in the UK. The link was from Willie Wilson and I believe the builder was a K. Atkinson on his KR2 G-BVIA. The link no longer works, but maybe someone has a copy of it. The system looked simple enough to build, didn't add a lot of weight and appeared to make wing removal after flight practical. Rich Hartwig Waunakee WI
KR> New Subscriber KR1--Plywood
Edward, You may be able to find 1088 spec. marine plywood locally. Rich Hartwig Waunakee WI
KR> Old Blue
Larry, Maybe Old Blue can't be resurrected, but I bet she could inspire another Flesner song. Rich Hartwig Waunakee WI
KR> Tail wheel/rudder interconnection
Dan, When I read your first post about the tail wheel it was quite clear to me that you were not blaming the tail wheel setup for the accident..and I admire you for not responding in anger to some of the caustic comments. Thanks for getting the tail wheel discussion started. We have not had many good building related discussions lately. Also.is there any possibility that "Old Blue" could be rebuilt for static display? For KR enthusiasts this is an historic airplane. Rich Hartwig Waunakee WI
KR> Oshkosh
My five digit membership number attests to the fact that I have been an EAA member since about 1974. Do I like everything about itNo! Am I happy to be a member..Yes! I really enjoyed the laid back atmosphere of "Oshkosh" during the early years, but still heard some complain that "It's not like Rockford!" Times change and the EAA must keep up. The money that EAA makes off of "Oshkosh" keeps the organization afloat for the whole year and supports many programs: such as Young Eagles, EAA Air Academy and KidVenture. It also funds lobbying and the infrastructure, such as the Museum and grounds that many of us actually enjoy. It also draws customers to local businesses and chains like WalMart. Many of whom will tell you they could not exist without the influx of customers during AirVenture. No EAA exec is drawing a multi-million dollar paycheck or receiving even more as a golden parachute when retiring. The money goes back into the organization. If you want a peek at the balance sheet, I am sure EAA would share that information. It is a non-profit organization. Is AirVenture for everyone? ...No! Some would rather be in their workshop "gettin' er done" or poking holes in clouds than shooting the bull at the hangar or at an EAA Chapter meeting. Some would rather get as much as they can for as little as possible from the EAA...and...some would rather give back by volunteering at Oshkosh, their local EAA Chapter or Mount Vernon. Thank you Larry F, Mark L, Bob L and all the others who make the KRnet, and KR Gathering a possibility. Volunteeringthat's what makes these events possible. I am one of the selfish ones who volunteers at all of these. Selfish because it gives me a great feeling that I am contributing to something constructive and it also gives me a sense of ownership in something that is giving back to me. Those hundreds of people you see working at AirVenture selling tickets, working security, directing traffic, clerking at the Wearhouse, working the flightline or the camping locator booth are volunteers and most are also paying for their own ticket and camping. Try volunteering! You may be surprised at how much more you will enjoy and take ownership of an event.or maybe not. I am thankful each day that we live in a country where WalMart and local businesses can make a buck selling a shirt, but I am even more thankful for organizations like EAA (and another 3 letter organization) who cut through the government red tape, stand up against the opposition and make it possible for me to enjoy my favorite pastimes. There is no way that one person or unorganized people can accomplish what EAA and AOPA do in dealing with government. Without dedicated people who work within flying organizations we might all spend our time looking to the sky and dreaming about being able to afford a $300,000+ Cirrus, Bonanza or Mooney instead of flying our own creations. So, I guess I will be willing to pay a few bucks extra for a shirt with the copyrighted name "AirVenture" even though I would prefer it say "Oshkosh" and I'll probably volunteer next year at Oshkosh and when someone is angry at EAA and tells me to off! as they leave I'll smile and think, "Isn't this a great country where we can say as we please and not end up in jail. I hope Snakebite makes it to 2009 Gathering. We need those fine examples of planes and knowledgeable builders like Lee V to make this fun and informative event a success! Constructive criticism isweller.constructive. Sure would be nice to see more of that. End of rant! See you at MVN! Rich Hartwig Waunakee WI
KR> 2009 KR Gathering Registration
If you registered for the Gathering before this month, you may have to register again. Check the pre registration page at krgathering.org So far only 12 people are listed. It would be a shame if you arrived at the Gathering and your new hat and shirt weren't there. Rich Hartwig Waunakee WI
KR> Re: Young Eagles
Here is the question and answer directly from the EAA's website: EAA Young Eagle Pilot Guidelines. "Can I fly in my licensed "Experimental" aircraft? Yes. All aircraft are eligible provided they are properly licensed and flown in accordance with appropriate FARs (or the country's equivalent) and the Young Eagles Program guidelines." Dick Hartwig Waunakee WI
KR> Hershey Bar wing
Sid, What formulas or table did you use for calculating the change in flight characteristics for a rectangular planform wing? The 20% figures you state seem a little extreme. Also, I think the change would add only about 7 Sq ft to the wing area. Rich Hartwig Waunakee WI >about 20 percent to the wing area all out at the tips. >The initial rate of climb would go up about 20 percent; the top speed would >decrease about 20 percent; the roll rate would slow by about 20 percent. >The hersey bar KR-2 would tend to get into an unrecoverable flat spin during >a departure stall due to blanking the rudder. In short you would have >created a two-place Cherokee 140 with a high time engine. >Sid Wood
KR> C-65 starter alternator
Benjamin F. Copeland IV wrote: "Dennis has done the greatest thing on adding a starter and alternator to the C-65 engine in his KR2. " Here's a link to Dennis Dyer's site: http://www.mtnguy.com/kr2/ Rich Hartwig Waunakee WI
KR> Hingeless ailerons
>"Hi there learned builders, what say you about hingeless ailerons? >The hinge is replaced with a flex-plate made of 0.016" 6061-T6" Paul, What would be gained by using the aluminum flex plate instead of a hinge? Cheaper? The hinge on the Zenith is part of the skin and simplifies the structure. It seems that on the KR there would be a lot of design and development time spent with little or no gain except in the "that's really neat" department. There is information on this subject in the archives. Rich Hartwig
KR> Sanding joints
I don't think you will find technical data from glue manufacturers that recommends "roughing up" a surface to be glued. A smooth freshly planed or sawn surface is best. Roughing increases the thickness of the glue line and that is generally not a good idea. Lightly scuffing plywood with sandpaper to remove manufacturing residue is the exception. Epoxies tend to forgive us for small transgressions, but why not go with the adhesive manufacturer's recommendations? I wouldn't worry about the sanding of end grain. End grain joints don't have much structural integrity anyway. Gussets and/or blocks secure those joints. Rich Hartwig Waunakee WI >I can see where the accepted idea of roughing up the wood surface > with coarse sandpaper is a good move because it increases the surface area > for gluing.
