KR> Prop Spinner attaching screws ?
My favorite spinner was a 14 inch fiberglass unit sold by Loehle Aviation for use on his P-40 and P-51 replicas. I wonder if they still have them for sale? A prominent aerodynamicist told me that a spinner up to one third of prop diameter was the last way to squeeze a few more percentage points of efficiency out of a perfect prop. Scott Dana Overall wrote: > > > From: 2sc...@bellsouth.net > > > I see how the forward bulkhead is screwed to the prop hub > > but not to the Spinner. > > > > > I thought perhaps there would be screws through the spinner > > into the forward bulkhead much like the rear one. > > Scott > > Scott, look at the third picture up from the bottom, it says: "OH, I am > finished. I still have to put the screws in the front bulkhead, but I ran > out of anchor nuts." > > Dana Overall > > 1999 & 2000 National KR Gathering host > Richmond, KY i39 > > RV-7 slider "Black Magic" > Flying..well sorta, useta, kinda > Barrett Precision O 360 A1A > Hartzell C2YR-1BFP/F7497-2 > http://rvflying.tripod.com/blackmagic.jpg > http://www.youtube.com/watch?v=MMi05-WU2D0#GU5U2spHI_4 > http://rvflying.tripod.com > > do not archive > > _ > Hotmail® has ever-growing storage! Don’t worry about storage limits. > http://windowslive.com/Tutorial/Hotmail/Storage?ocid=TXT_TAGLM_WL_HM_Tutorial_Storage_062009 > ___ > 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 > > -- > Internal Virus Database is out-of-date. > Checked by AVG Free Edition. > Version: 7.5.516 / Virus Database: 269.19.18/1254 - Release Date: 1/31/08 > 8:30 PM
KR> Prop Spinner attaching screws ?
I see how the forward bulkhead is screwed to the prop hub but not to the Spinner. So the forward bulkhead exists only for internal support of the spinner but is not attached to the spinner directly? I thought perhaps there would be screws through the spinner into the forward bulkhead much like the rear one. Scott Dan Heath wrote: > > Sure, if you look at the 6th pic down the thumbnails, you will see the back > plate, the front bulkhead plate, and the crush plate with bolts in them. > Look at the prop in the pic below that. The large back plate goes behind > the prop, the bulkhead plate goes on top of the prop, and the crush plate on > top of that and it all gets bolted to the prop hub with those bolts, except > the one in then center. > > Then the spinner goes on over all that and gets screwed to the plates. > > See N64KR at http://KRBuilder.org - Then click on the pics > See you at the 2009 - KR Gathering in Mt. Vernon, Ill > There is a time for building and a time for FLYING and the time for Flying > has begun. > Daniel R. Heath - Lexington, SC > > -Original Message- > From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf > Of Scott Perkins > Sent: Tuesday, June 09, 2009 4:02 AM > To: KRnet > Subject: Re: KR> Prop Spinners > > That is some nice spinner work but even in the finished > and mounted spinner photo I do not see bolts through the > spinner into the Front bulkhead. Were they ever placed ? > Scott > > Dan Heath wrote: > > > > This might answer your questions about the spinner and the front bulkhead. > > > > http://krbuilder.org/Spinner/index.html > > > > See N64KR at http://KRBuilder.org - Then click on the pics > > See you at the 2009 - KR Gathering in Mt. Vernon, Ill > > There is a time for building and a time for FLYING and the time for Flying > > has begun. > > Daniel R. Heath - Lexington, SC > > > > -Original Message- > > > > There was earlier mention of needing to put or > > use a front bulkhead on a spinner. What is that ? > > > > ___ > > 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 > > > > -- > > Internal Virus Database is out-of-date. > > Checked by AVG Free Edition. > > Version: 7.5.516 / Virus Database: 269.19.18/1254 - Release Date: 1/31/08 > 8:30 PM > > ___ > 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 > > ___ > 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 > > -- > Internal Virus Database is out-of-date. > Checked by AVG Free Edition. > Version: 7.5.516 / Virus Database: 269.19.18/1254 - Release Date: 1/31/08 > 8:30 PM
KR> Prop Spinners
That is some nice spinner work but even in the finished and mounted spinner photo I do not see bolts through the spinner into the Front bulkhead. Were they ever placed ? Scott Dan Heath wrote: > > This might answer your questions about the spinner and the front bulkhead. > > http://krbuilder.org/Spinner/index.html > > See N64KR at http://KRBuilder.org - Then click on the pics > See you at the 2009 - KR Gathering in Mt. Vernon, Ill > There is a time for building and a time for FLYING and the time for Flying > has begun. > Daniel R. Heath - Lexington, SC > > -Original Message- > > There was earlier mention of needing to put or > use a front bulkhead on a spinner. What is that ? > > ___ > 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 > > -- > Internal Virus Database is out-of-date. > Checked by AVG Free Edition. > Version: 7.5.516 / Virus Database: 269.19.18/1254 - Release Date: 1/31/08 > 8:30 PM
KR> Prop Spinners
Would you have outside screws that screw through the spinner just like the rear bulkhead ? I've looked through about fifty spinners at the fly market at SunFun and I dont think I ever saw a spinner with two bulkheads. Sounds like a good idea though. I wonder what alloy the alum was and whether it had been fatigued when formed into the shape of the spinner. Scott Larry Flesner wrote: > > At 05:21 PM 6/8/2009, you wrote: > >There was earlier mention of needing to put or > >use a front bulkhead on a spinner. What is that ? > >Scott > +++ > > Without going into great detail, it is a bulkhead nearly identical > to the bulkhead on the rear of the prop that the spinner bolts to. > It is just located on the front side of the propeller and adds > rigidity to the spinner. Most consider it a must do item. > > Larry Flesner > > ___ > 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 > > -- > Internal Virus Database is out-of-date. > Checked by AVG Free Edition. > Version: 7.5.516 / Virus Database: 269.19.18/1254 - Release Date: 1/31/08 > 8:30 PM
KR> Center of Gravity and Prop Spinners
There was earlier mention of needing to put or use a front bulkhead on a spinner. What is that ? Scott Mark Jones wrote: > > >One more thing on fiberglass spinners...I consider them to be safer than > >aluminum ones. If the spinner comes off on climb out, the prop is much > >less > >likely to suffer damage if it hits a composite spinner than if it hits an > >aluminum one. > > And here is a link to show you what happens when you lose an aluminum > spinner in flight. > http://www.flykr2s.com/lostspinner.html and I consider myself very lucky > once again as this one > caused minor damage. It did not hit the plane at all. Joe Weber was my > wingman when it came apart.
KR> Good source for PVC foams like Divnycell ?
Does anyone have a recommendation for a supplier of good foams other than extruded polysteyrene that melts in the presence of fuel fumes ? Most Urethane foams have a terrible bond strength and are very brittle (friable ) causing delamination so those are to be avoided. Scott
KR> Ivoprop?
Doesnt IvoProp specificly prohibit use of their props in direct drive 4 stroke applications ? Why even pursue it. Scott Jeff Scott wrote: > > You guys need to take advantage of the past writings in the KRNet archive on > this subject. The Ivo props have been tested on the VWs and found to be a > failure with a lousy company that won't stand behind them. Orma Robbins is a > long time A/IA/KR builder/pilot with a ton of experience. I would suggest > that you get into the "way back" machine called the KRNet Archives (listed at > the bottom of every KRNet email) and do a search for posts from > "o...@aviation-mechanics.com" for 2004 with a key word of "Ivo". I think > you'll find all the information you need on Ivo. > > Orma used to have a rant page about how the Ivo failed on his plane and how > badly he was treated by the company following the prop failure, but the web > page is now gone. > > Almost any subject you guys come up with has been discussed at length in the > archives, which is why you don't get a lot of comments from guys that have > been there and done that before. If you're question was serious, you would > look in the archives for an answer before posting. > > -Jeff Scott > Los Alamos, NM > > > Learning Centers - Click Here. > http://thirdpartyoffers.juno.com/TGL2141/fc/BLSrjpTKNdOKf8wNNzjsiziWXDR7qkOcBjRqSMgxNf6QUEPODAru3tG5YH2/ > > ___ > 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 > > -- > Internal Virus Database is out-of-date. > Checked by AVG Free Edition. > Version: 7.5.516 / Virus Database: 269.19.18/1254 - Release Date: 1/31/08 > 8:30 PM
KR> KR-1 Plans Available ? Copyright ?
While illegality may be defined by the strict letter, damages are not. Damages by copyright infringement are determined mostly by loss or decrease in revenues. When a copyright holder no longer is selling or servicing, you might be infringing on copyright but not imflicting harm as defined by the copyright statutes. There are many instances in the world of aviation where the good of the community overrides strict compliance with the law such that the moral thing to do may not equate to the lagal thing. Consider the loss of designs where the copyright owners are deceased or cannot be found. In those situations you have to ask who is being harmed by the reproduction of such designs while breaking the law. As with most things, common sense is required. Hundreds if not thousands of avaition designs are now lost because of the copyright issues and it is tragic. It is sickening to look through 20, 30 and 40 year old magazines and see how many great little planes have disappeared along with the hard earned knowledge of their designers. For instance about ten years ago ( before the old and long time librarian retired )I inquired at the EAA and they had sixty sets of blueprints for designs that had been donated that were restriced to mere looking at without any kind of copying taking place. The restrictions were not limited to copyright but also the new lawyers fear that if you built a plane from the knowledge obtained they feared liability. What the heck is the EAA all about anyway ? Scott Tony King wrote: > I can sympathise with Mike in one aspect - trying to do business with RR is > very frustrating. I tried for several months with faxes, phone calls, etc. > and never got any response. In the end I gave up and some time later I > bought a set of KR2S plans from a KRNet member who was selling his (genuine > and unused) set. > > However, whether or not the plans are readily available from RR isn't > actually relevant. They're the intellectual property of RR and RR can > choose to do whatever they want with them - including never selling them to > anyone. That still doesn't make it legal for anyone else to violate the > copyright. It's the same thing as if you refuse to sell me your car so I go > and take it. You have no obligation to sell me your car and RR has no > obligation to sell KR plans. If they decide to provide lousy service (which > was my experience), they're perfectly within their rights and if you or I > don't like that we are under no obligation to deal with them. If that means > you then can't build a KR, that's the way it is. It's not an excuse for > ripping them off. > > Tony King > Brisbane Australia > > 2009/5/26 Scott Perkins <2sc...@bellsouth.net> > > > The question I have not seen answered is whether the KR-1 plans > > are available from the RAND company and if so how much and how long > > does it take and what kind of condition are they in. IE such as > > complete, hi quality, accurate etc. > > Scott > > > > sidney.w...@l-3com.com wrote: > > > > > > >...is someone trying to down load plans without buying them or > > > something. If so I agree with you I have had my plans sence 1974... > > > - > > > > > > My reading from the Copyright Office website indicates the KR plans > > > copyright may expire on December 31, 2047. > > > http://www.copyright.gov/title17/92chap3.html > > > Copies of the plans sets were sold prior to 1978 and would be considered > > > as commercialized intellectual property with a repose of 70 years from > > > January 1, 1978. Rand Robinson Engineering would be the legal owner of > > > that intellectual property. > > > The previous assertion by Mike, that the KR series plans are in the > > > public domain, is wishful thinking on his part. > > > > > > Sid Wood > > > Tri-gear KR-2 N6242 > > > Mechanicsville, MD, USA > > > > > > ___ > > > 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 > > > > > > -- > > > Internal Virus Database is out-of-date. > > > Checked by AVG Free Edition. > > > Version: 7.5.516 / Virus Database: 269.19.18/1254 - Release Date: 1/31/08 > > 8:30 PM > > > > ___ > > 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> KR-1 Plans Available ? Where ? How Much? other Terms ?
The question I have not seen answered is whether the KR-1 plans are available from the RAND company and if so how much and how long does it take and what kind of condition are they in. IE such as complete, hi quality, accurate etc. Scott sidney.w...@l-3com.com wrote: > > >...is someone trying to down load plans without buying them or > something. If so I agree with you I have had my plans sence 1974... > - > > My reading from the Copyright Office website indicates the KR plans > copyright may expire on December 31, 2047. > http://www.copyright.gov/title17/92chap3.html > Copies of the plans sets were sold prior to 1978 and would be considered > as commercialized intellectual property with a repose of 70 years from > January 1, 1978. Rand Robinson Engineering would be the legal owner of > that intellectual property. > The previous assertion by Mike, that the KR series plans are in the > public domain, is wishful thinking on his part. > > Sid Wood > Tri-gear KR-2 N6242 > Mechanicsville, MD, USA > > ___ > 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 > > -- > Internal Virus Database is out-of-date. > Checked by AVG Free Edition. > Version: 7.5.516 / Virus Database: 269.19.18/1254 - Release Date: 1/31/08 > 8:30 PM
KR> Brochure of the KR-3 amphib
Thanks Ed, that photo is one of the four I already have and that is why I am looking for the Brochure. I'd like at least to know whether it was single seater or two seater and other general info contained in the brochure. Scott Ed Janssen wrote: > Scott, > Here's one picture. Scroll to the bottom. > > http://www.flightglobal.com/pdfarchive/view/1977/1977%20-%202009.html > > - Original Message ----- > From: "Scott Perkins" <2sc...@bellsouth.net> > To: <kr...@mylist.net> > Sent: Friday, May 22, 2009 3:12 PM > Subject: KR> Brochure of the KR-3 amphib > > several years ago in this list a guy mentioned he had found > a Brochure of the KR-3 > and there were offers to place scans of it on various ? websites that are now gone. > > Does anyone know where the best photos are of the KR-3 ? > > I have some photos of two distinct airplanes but they > arent very good and would like to see the Brochure. > > I also want to answer the question as to whether the KR-3 > may have been a single seater. > > IS there an agreed upon central photo gallery site > for the KR plane stuff ? > > Thanks > Scott >
KR> Brochure of the KR-3 amphib
several years ago in this list a guy mentioned he had found a Brochure of the KR-3 and there were offers to place scans of it on various websites that are now gone. Does anyone know where the best photos are of the KR-3 ? I have some photos of two distinct airplanes but they arent very good and would like to see the Brochure. I alwo want to answer the question as to whether it may have been a single seater. IS there an agreed upon central photo gallery site for the KR plane stuff ? Thanks Scott
