KR> KR2 ARTICLE-KITPLANES NOV 2010
I think there is a change to the WAF system where a tube needs to be fitted between the fittings and a single bolt is passed through. I could be wrong but one of the guys that have actually completed one here in Oz should chip in. Cheers. Peter Bancks. Ballina, Oz. On 1/10/2010 03:53, Mark Langford wrote: > The Aussies have dictated a couple of changes to KRs built and flown there, > but > "improving" the WAFs isn't one of them, as far as I know.
KR> KR2 ARTICLE-KITPLANES NOV 2010
Gentlemen, remember this axiom; "A battle of wits with the witless is indeed a losing battle"! Do not respond in anger.These publications and their writers can some times be very disappointing to many of us who contribute to them. You can take solace in another old saying, this one from the great poet Keats, "There is a pleasure in madness that only us madmen know"! Pat - Original Message - From: "Plane Nut" To: "'KRnet'" Sent: Thursday, September 30, 2010 12:56 PM Subject: RE: KR> KR2 ARTICLE-KITPLANES NOV 2010 >I am really miffed about this article. I would like to know what this >guy's > qualifications are to make this assumption. I know of no failures of the > wing attach fittings on any KR. > Subject: KR> KR2 ARTICLE-KITPLANES NOV 2010 > > There is an article written by Bob Grimstead about KR2s The wing bolts > and attach plates can be problem areas, >
KR> Lengthen Horizontal Stabilizer?
Hi all, I have a stock width horizontal stabilizer and would like to lengthen it. My research shows those that have done this have built a new stabilizer. Is it possible to just extend the existing stabilizer? I am not a structural engineer (so be gentle please) but can imagine the problems that this would create (since the spar would not extend to the tip). If it is possible/acceptable, any tips/links would sure be appreciated. Thanks, Jon Finley N314JF - Q2 - Subaru EJ-22 [http://www.finleyweb.net/Q2Subaru.aspx] http://www.finleyweb.net/Q2Subaru.aspx
KR> Control Stick Drawings - Side Stick
All, Does anyone have more pictures or drawings of the control stick assembly pictured here: [http://www.philskr2.50megs.com/custom.html] http://www.philskr2.50megs.com/custom.html BTW: I have already sent Phillip a PM on this (he was going to see what he could find). I am looking to build a mechanism that results in a side stick arrangement (in a KR1.5) with the elevator control running beside the pilot (sitting in the center) and back to the elevator cables (on the aft side of the rear spar). It's a fairly simple arrangement to come up with but I'm interesting in seeing what has worked for others before reinventing the wheel. Thanks, Jon
KR> Alum Tee stock
Quite a bit of time was spent today researching the source for alum Tee bar as suggested by Dean Collins's hinge and control arm mods.. To no avail save for the comments found on the KR web site. I did discover that 6063 T5 mentioned on that site as the grade of Tee stock found at the local hardware store is roughly half the strenght of 6061 T6. However that doesn't tell us if 6063 T5 is not adequate enough. I suspect that it is, with it's tensile and yield strenghts exceeding 20,000 psibut I am not going to rearch this further as it is likely that I am wasting time. The very same parts can be made with 6061 T6 angle stock. Nor is there any practical value in doubling up 2 angles to make a Tee. It does not have to be a hinged horn either. On the horizontals place two Dean hinges on either side of the control horn and on the rudder 3 hinges equally spaced above the horn. Incidently, the Brinnell Hardness of 6063 T5 is rated as 60. I could not find the Brinnell results for 6061 T6. This is of value if you are using the horns as hinges. Any one with comments?? Pat
KR> KR2 ARTICLE-KITPLANES NOV 2010
Pete, I have the dwgs from the local CAD (Feds) that were produced in the early 80's about fitting of the spacer & single bolt & I think it originated in OZ. Not sure how I will get on with mine, we will see. 75% done 50% to go Robin . NZ. I think there is a change to the WAF system where a tube needs to be fitted between the fittings and a single bolt is passed through. I could be wrong but one of the guys that have actually completed one here in Oz should chip in. Cheers. Peter Bancks. Ballina, Oz. On 1/10/2010 03:53, Mark Langford wrote: > The Aussies have dictated a couple of changes to KRs built and flown > there, but > "improving" the WAFs isn't one of them, as far as I know.
KR> KR2 ARTICLE-KITPLANES NOV 2010
It cuts the number of bolts used on half, Virg On 10/1/2010 8:10 AM, Pete wrote: >I think there is a change to the WAF system where a tube needs to be > fitted between the fittings and a single bolt is passed through. > I could be wrong but one of the guys that have actually completed one > here in Oz should chip in. > Cheers. > Peter Bancks. > Ballina, Oz. > > On 1/10/2010 03:53, Mark Langford wrote: >> The Aussies have dictated a couple of changes to KRs built and flown there, >> but >> "improving" the WAFs isn't one of them, as far as I know. > > > > ___ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html >
KR> KR2 ARTICLE-KITPLANES NOV 2010
Robin, would you please send me an E-Mail with the drawing attached ? THX, Virg On 10/1/2010 3:48 PM, Robin Macdonald wrote: > Pete, > > I have the dwgs from the local CAD (Feds) that were produced in the early > 80's about fitting of the spacer& single bolt& I think it originated in > OZ. Not sure how I will get on with mine, we will see. >
KR> RE: ARTICLE-KITPLANES NOV 2010 and prop photos
I saw Old Blue in the hangar after the crash. That FAA guy chased me out of there when I asked to snap a picture of the wreck. The wing attach fittings on a KR are the strongest part of the wing. The wood around them brakes before the fittings ever will. Also I have some pictures of my new prop I made added to my photo list at this link. It's a 52 X 40 made of walnut and douglas fir. Weighs 4 lbs. http://www.bouyea.net/members/index.htm Thanks to John for posting the pictures. Scroll down. Joe Scappoose Ore. Message: 7 List-Post: krnet@list.krnet.org Date: Thu, 30 Sep 2010 09:56:58 -0700 From: "Plane Nut" Subject: RE: KR> KR2 ARTICLE-KITPLANES NOV 2010 To: "'KRnet'" Message-ID: <00b901cb60c0$7e84f0a0$7b8ed1e0$@net> Content-Type: text/plain; charset="iso-8859-1" I am really miffed about this article. I would like to know what this guy's qualifications are to make this assumption. I know of no failures of the wing attach fittings on any KR. To my knowledge there have been no changes in the wing attach fittings other than dimensionally with the 2S. I'll confirm that with Jeanette today. In the photos from "Ol Blue's crash the wing took a direct hit and the fitting bent (accordion shaped) but were still intact. I had asked Kitplanes to allow us to review it before print. I had a feeling it was going to be bad when I was informed they had been working on the article for a few years. It was alleged to be a flight report only from someone who did not own a KR but she didn't seem to get it. Guess I need to write a letter to the Editor... Steve Glover steve.glo...@nvaero.com www.nvaero.com ***
KR> student pilots flying the phase-one flight testing...
Netheads: In today's EAA Experimenter magazine (email and online, for free, in case you don't get it, and Pat Panzera's the editor), among other interesting things they mentioned that a weight and balance sheet was not necessarily required in experimentals. There was a link to an FAQ that was full of interesting stuff (http://www.eaa.org/experimenter/qa/default.asp). But the next to last answer was news to me. I'm not soliciting a bunch of "that's a really bad idea" posts or anything like that, but thought it was worthy of passing on to the group. It goes like this: Q: I?ve just finished building my Pietenpol, which is an experimental amateur-built aircraft that meets the LSA definition. I?m ready to begin the phase-one flight testing. I?m a student pilot working toward my sport pilot certificate and I don?t hold a current medical. Is it legal for me to do the flight testing as a student pilot? Can a student pilot fly an experimental aircraft at all? A: Let?s take the second part of your question first. There is no regulatory prohibition on a student pilot (sport pilot or otherwise) flying an experimental aircraft. Pilot requirements, privileges, and limitations are found in 14 CFR Part 61, and student pilot privileges and limitations are specifically found in subpart C. There is no specific limitation in that section prohibiting a student pilot from flying an aircraft with an experimental airworthiness certificate. Now let?s look at the first part of your question regarding a student pilot (sport pilot or otherwise) flying an experimental aircraft during flight testing. Certification requirements for the pilot in command of an experimental aircraft are not found in the FAA regulations themselves but rather in the operating limitations of the individual aircraft. These operating limitations are issued by the FAA as a part of the aircraft?s airworthiness certificate and will vary depending on exactly what type of airworthiness certificate the aircraft holds. For an amateur-built aircraft such as your Pietenpol, the operating limitations will contain the following statement: ?The pilot in command of this aircraft must hold a pilot certificate or an authorized instructor?s logbook endorsement. The pilot in command must meet the requirements of ยง 61.31(e), (f), (g), (h), (i), and (j) as appropriate.? Note that the pilot may hold a pilot certificate (which would include sport pilot) or an authorized instructor?s endorsement. This would open the door for a properly endorsed student pilot (including a sport pilot student) to fly the aircraft. The limitation makes no distinction between phase-one flight testing and phase-two normal operations. This limitation is in place for all operations. The limitation does go on to require any appropriate endorsements called out by 14 CFR 61.31(e) though (j). The most common of these endorsements are for tailwheel aircraft, high-performance aircraft, and complex aircraft. The only endorsement applicable to the Pietenpol would be the tailwheel endorsement, so the instructor would have to endorse the student appropriately before allowing him or her to solo a tailwheel aircraft as well as give the standard solo endorsement in order to be in compliance with this operating limitation. Remember that, if the student seeks to solo an aircraft that does not meet the definition of a light-sport aircraft he/she would also need to hold a 3rd class FAA medical certificate. This would be the case whether the aircraft holds a standard or special (such as experimental) airworthiness certificate. The question you did not ask, but one I will answer anyway, is whether it is smart for a student pilot to perform the flight testing on an experimental aircraft. This is the most important question, and the answer is, no, it is not a good idea for a student pilot to perform flight testing on a new amateur-built aircraft. The purpose of flight testing is to verify the aircraft?s handling characteristics and make sure it does not have any issues that would affect the safety of flight. Flight testing a new aircraft should be left to experienced pilots who are familiar with the normal handling characteristics of the aircraft being tested and are prepared to handle possible emergency situations that might arise. A student pilot does not have the background and experience to identify abnormal handling characteristics and may not be prepared to handle an emergency situation if one should present itself. So while it may be technically legal for a student pilot (sport pilot or otherwise) to fly an aircraft during the initial flight-test period, I strongly discourage this. Find an appropriate test pilot to perform the flight tests on the aircraft, then find a qualified instructor to check you out in the aircraft after it has been tested. --- Like I said, check out http://www.eaa.org/experimenter/qa/defau
KR> Lengthen Horizontal Stabilizer?
Jon, Checkout Jeff Scott's website click on tail mods. http://jscott.comlu.com/KR/KRmods.html Was that your subarsonic in contact magazine? Very nice. Steven Bedford s1bedf...@msn.com In search of a kr2s kit or project -- From: "Jon Finley" Sent: Friday, October 01, 2010 9:23 AM To: Subject: KR> Lengthen Horizontal Stabilizer? > > Hi all, > > I have a stock width horizontal stabilizer and would like to lengthen it. > My research shows those that have done this have built a new stabilizer. > Is it possible to just extend the existing stabilizer? I am not a > structural engineer (so be gentle please) but can imagine the problems > that this would create (since the spar would not extend to the tip). > > If it is possible/acceptable, any tips/links would sure be appreciated. > > Thanks, > > Jon Finley > N314JF - Q2 - Subaru EJ-22 > [http://www.finleyweb.net/Q2Subaru.aspx] > http://www.finleyweb.net/Q2Subaru.aspx > ___ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html >
KR> Lengthen Horizontal Stabilizer?
Steven Bedford wrote: > Checkout Jeff Scott's website click on tail mods. > http://jscott.comlu.com/KR/KRmods.html And Troy Petteway has done the same thing (http://www.n56ml.com/troy/). Just "shell it" in two layers of carbon fiber for a few inches on each side. That's how I did my Hoerner tips also... Mark Langford N56ML "at" hiwaay.net website at http://www.N56ML.com
