I wonder if anyone's ever used a kite in a field to keep a wire "up". I see kites a lot in the summer, along belt parkway here in Brooklyn and they seem to stay in one place for long periods of time. I'm sure one can use 12 or 14 AWG wire and let a kite carry it pretty high. Of course you need wind for that but being near water (salt water, no less) there's usually wind present. Hmm.....
Another idea that may be used to place a wire with a lot of precision is one of those RC quadricopters that are becoming wildly popular. A little servo "claw" to release the wire or just to place it's apex where you want it... __________________ Slava (Sal) B, W2RMS w2...@arrl.net On Jun 26, 2014, at 7:12 PM, Rick Bates, WA6NHC <happymooseph...@gmail.com> wrote: > This may be off topic, but in light of it being Field Day Weekend in the > US.... > > The problem with the bow or slingshot is when (if) the projectile comes down. > > > The arrow has an issue because it gets hung up or in branches and doesn't > have enough mass to pass through some branches or allow gravity to pull it > down. Should it comes later, the risks of impalement can ruin the day. > > The slingshot can improve over the arrow by increasing mass but can be > equally dangerous. Accurate shots are challenging. > > Here is what I use (no pecuniary interest) and it solves those issues. > http://www.antennalaunchers.com/antlaunching.html > > It is simple to use, moderately safe (standard weapon rules about pointing > etc) and accurate shots are simple. I've used it to clear (and then some) > 200' trees. > > A weighted tennis ball (of a BRIGHT color so it can be seen) is simple to > make an accurate shot; can pass through, then be pulled to earth by the > increased mass. If you clear the tree and want to shorten the flight path, > simply touching the fishing line stops momentum immediately, the ball falls. > > So there are several options, some safer than others, some more expensive and > they all work. What works best for you is the choice but please be safe and > wear a hardhat. > > I've also seen someone using the antenna launcher to shoot tennis balls for > their dog to chase. A 100 yard shot is pretty easily done. By the time the > (tiring) dog came back with the ball, the launcher was ready to shoot again. > > 73, > Rick, WA6NHC > > iPad = small keypad = typos = sorry ;-) > >> On Jun 26, 2014, at 3:02 PM, Tony Estep <estept...@gmail.com> wrote: >> >>> On Thu, Jun 26, 2014 at 2:19 PM, Phil Hystad <phys...@mac.com> wrote: >>> >>> ....I'm getting pretty good with the bow & arrow method.... >> >> =========== >> For years I used a slingshot, firing a weight attached to a spinning reel. >> Worked pretty good. But last year I bought one of these gadgets: >> http://www.kr4loairboss.com/ >> >> It has a certain gee-whiz factor that makes you feel like a naughty kid. >> >> Tony KT0NY >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to happymooseph...@gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to sla...@nullserv.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
