---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Mon 07/09/12: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:09 AM - Formation "gunsight" (Pete Fowler) 2. 08:01 AM - Re: Formation "gunsight" (Doug Zeissner) 3. 08:44 AM - Re: Antenna Yak52 (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E) 4. 09:01 AM - Re: Antenna Yak52 (Brian Lloyd) 5. 09:13 AM - Re: Antenna Yak52 (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E) 6. 03:18 PM - Re: Formation "gunsight" (Byron Fox) 7. 04:07 PM - Re: Formation "gunsight" (Pete Fowler) 8. 05:30 PM - Re: Re: Formation "gunsight" (Byron Fox) ________________________________ Message 1 _____________________________________ Time: 07:09:58 AM PST US Subject: Yak-List: Formation "gunsight" From: "Pete Fowler" Hi guys, I've designed and am producing a limited number of formation "gunsights". These are designed to measure extended trail distances accurately for improving formation flying and they're also fun for use when doing BFM. They're designed around a CJ-6 but would be little different on a Yak. They're for a 33' wingspan with the sight mounted 22.5" from your eye. Outer ring is 400' in trail, 2nd ring is 800' in trail, third ring is 1200' in trail and inner ring is 2400' in trail. They're made of lightweight resin from a 3D printer and I've been using mine just velcroed to the dash. If you want one, they're $30 + Shipping, e-mail me at pete(at)tigersquadron.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=377760#377760 Attachments: http://forums.matronics.com//files/dscn0532_166.jpg http://forums.matronics.com//files/sightf_112.jpg ________________________________ Message 2 _____________________________________ Time: 08:01:42 AM PST US Subject: Re: Yak-List: Formation "gunsight" From: Doug Zeissner Pete I would like one. Thanks, Doug Z Sent from my iPhone On Jul 9, 2012, at 7:06 AM, "Pete Fowler" wrote: > > Hi guys, > > I've designed and am producing a limited number of formation "gunsights". These are designed to measure extended trail distances accurately for improving formation flying and they're also fun for use when doing BFM. > > They're designed around a CJ-6 but would be little different on a Yak. They're for a 33' wingspan with the sight mounted 22.5" from your eye. Outer ring is 400' in trail, 2nd ring is 800' in trail, third ring is 1200' in trail and inner ring is 2400' in trail. > > They're made of lightweight resin from a 3D printer and I've been using mine just velcroed to the dash. > > If you want one, they're $30 + Shipping, e-mail me at pete(at)tigersquadron.com > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=377760#377760 > > > > > Attachments: > > http://forums.matronics.com//files/dscn0532_166.jpg > http://forums.matronics.com//files/sightf_112.jpg > > > > > > > ________________________________ Message 3 _____________________________________ Time: 08:44:18 AM PST US Subject: RE: Yak-List: Antenna Yak52 From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" > I recommend you contact AMP and get their data on connector reliability. They make both crimp and solder connectors so they have no axe to grind either way. I think that you might change your mind once you see the figures on failure rates under various stresses. Or not. Both ways work just fine. There is no doubt in my mind but that you can produce an excellent termination using the solder/gasket type connector. I never said differently Brian. I concur that crimp on connectors exist, that with the proper methods and the proper tools can be made to work well. I personally do not use them for my applications, and have had better success with the manually assembled types. To each his own, I am not trying to change your mind. It would seem to me that since heat shrink on the rear of a crimped on connector is something we both agree on, that manufacturers would include a piece of that good heat shrink with the connector itself, and also include the use of it in their assembly instructions. Which most crimp on connector types do not. Wonder why that is? > I find that MY failure rate is lower with crimp type connectors now that I am using them exclusively. Glad to hear it. > The shops I deal with use heat-shrink. Glad to hear that too. > I am trying to remember when a shop didn't but I have to think back to the 70's. But I am sure there are shops that cut corners. Hmm, this might be a way to judge the quality of work coming out of a shop. If the shop does not use heat shrink on the coax connectors then maybe you should be looking for a different shop. I am sure you are correct. That said, most people tend to shop by picking the place with the cheapest price. > My practice of "wet" assembly using zinc chromate is the technique I was taught while working as an avionics installer back in the 70's. I am sure there are better ways now but the "wet" assembly method works very well and is readily available to people installing antennas on their airplanes using materials that they probably already have in their hangar. Zinc Chromate is now listed as "Hazardous Material" and has special handling and disposal requirements IAW EPA regulations. Mark Bitterlich ________________________________ Message 4 _____________________________________ Time: 09:01:43 AM PST US Subject: Re: Yak-List: Antenna Yak52 From: Brian Lloyd On Mon, Jul 9, 2012 at 11:41 AM, Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E wrote: > It would seem to me that since heat shrink on the rear of a crimped on > connector is something we both agree on, that manufacturers would > include a piece of that good heat shrink with the connector itself, and > also include the use of it in their assembly instructions. Which most > crimp on connector types do not. Wonder why that is? > I would guess two things: price and application. The heat shrink costs money and the jobber is going to end up using what he needs for the application anyway. I know I would prefer to cut my heat-shrink myself. I use different lengths and even double application when I am trying to accomplish a specific radius of strain-relief. > > I am trying to remember when a shop didn't but I have to think back to > the 70's. But I am sure there are shops that cut corners. Hmm, this > might be a way to judge the quality of work coming out of a shop. If the > shop does not use heat shrink on the coax connectors then maybe you > should be looking for a different shop. > > I am sure you are correct. That said, most people tend to shop by > picking the place with the cheapest price. > Yeah, lowest price is not necessarily the best way to find the best work. Good, Fast, Cheap: pick two. > > My practice of "wet" assembly using zinc chromate is the technique I > was taught while working as an avionics installer back in the 70's. I am > sure there are better ways now but the "wet" assembly method works very > well and is readily available to people installing antennas on their > airplanes using materials that they probably already have in their > hangar. > > Zinc Chromate is now listed as "Hazardous Material" and has special > handling and disposal requirements IAW EPA regulations. > Well, rattle-cans of zinc chromate are still available at my favorite aviation supply house (Sacramento Skyranch) so I intend to keep using it. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 brian@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) ________________________________ Message 5 _____________________________________ Time: 09:13:02 AM PST US Subject: RE: Yak-List: Antenna Yak52 From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" >> Zinc Chromate is now listed as "Hazardous Material" and has special handling and disposal requirements IAW EPA regulations. > Well, rattle-cans of zinc chromate are still available at my favorite aviation supply house (Sacramento Skyranch) so I intend to keep using it. So do I. Mark ________________________________ Message 6 _____________________________________ Time: 03:18:46 PM PST US Subject: Re: Yak-List: Formation "gunsight" From: Byron Fox Pete, how high does the sight stand? We have a Garmin 295 mounted on the center aft edge of the glare shield which stand about 3" inches above it, but well clear of our forward line-of-sight over the engine cowl. Judging from the pictures you posted this should not be a problem because the sight is purposely directly in our line-of-sight. ...Blitz On Mon, Jul 9, 2012 at 7:06 AM, Pete Fowler wrote: > > Hi guys, > > I've designed and am producing a limited number of formation "gunsights". > These are designed to measure extended trail distances accurately for > improving formation flying and they're also fun for use when doing BFM. > > They're designed around a CJ-6 but would be little different on a Yak. > They're for a 33' wingspan with the sight mounted 22.5" from your eye. > Outer ring is 400' in trail, 2nd ring is 800' in trail, third ring is 1200' > in trail and inner ring is 2400' in trail. > > They're made of lightweight resin from a 3D printer and I've been using > mine just velcroed to the dash. > > If you want one, they're $30 + Shipping, e-mail me at pete(at) > tigersquadron.com > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=377760#377760 > > > Attachments: > > http://forums.matronics.com//files/dscn0532_166.jpg > http://forums.matronics.com//files/sightf_112.jpg > > -- ... Blitz Byron M. Fox 80 Milland Drive Mill Valley, CA 94941 415-307-2405 ________________________________ Message 7 _____________________________________ Time: 04:07:03 PM PST US Subject: Yak-List: Re: Formation "gunsight" From: "Pete Fowler" Total height is 5-inches, the base to the bottom of the sight is 3-inches. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=377815#377815 ________________________________ Message 8 _____________________________________ Time: 05:30:32 PM PST US Subject: Re: Yak-List: Re: Formation "gunsight" From: Byron Fox Thanks, Pete. What position is your CJ's seat in when looking through the sight? Bottom, middle or top? Sent from my iPhone On Jul 9, 2012, at 4:04 PM, "Pete Fowler" wrote: > > Total height is 5-inches, the base to the bottom of the sight is 3-inches. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=377815#377815 > > > > > > > > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/yak-list Browse Digests http://www.matronics.com/digest/yak-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.