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Tow line recovery

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  • #16
    Which tx and Rx did you wind up getting?

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    • #17
      https://www.mikesfalconry.com/FMV-LE...Mhz-p/2000.htm

      we use the radio tracking receiver rather than GPS as it is less expensive but also much simplier and not needing lap tops etc...
      these transmitters are quite small and Larry is threading their antennae into the Parachute cord, heat shrinking and then putting the body of the transmitter inside orange golf whiffle balls..
      hopefully this will all work. We have different frequencies for each tow line (4) so if one is lost for good, we can switch frequencies and not keep "seeing" that frequency while we are looking for a new one...We are adopting a policy that we will NOT leave a tow line behind this year and plan to make good on that promise to the farmer who had extensive damage to his machinery last fall after our aero tow event last year.

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      • #18
        Well thought out nice!

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        • #19
          Just to be clear, the farmer did NOT have any damage to his equipment from our lines. He did, however, have to stop and collect one before the combine ingested it.

          A hassle for him but no damage.

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          • #20
            Those transmitters/receivers are nice! They would be perfect for Dawn Patrol and other events where the models drop ordinance.

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            • #21
              Am I reading the price right on the receivers? I wonder how the freeflight trackers compare with these systems on performance.

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            • #22
              We don't know either, most of the time we are surrounded by a sea of corn over our heads and we are hoping for the best possible signal to find the lines that otherwise are impossible to locate.
              Heck, even a model airplane in that much corn can be hard to locate as I experienced last year with a fly away towplane and then a dead stick landing 3/4th of a mile away from the field...
              I am putting one of these in my tow plane this week for our event...and future events.
              Last edited by kjkavaney; 07-08-2018, 03:48 PM. Reason: typo

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              • #23
                kjkavaney, How did the system work? Did you get a chance to test it out?

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                • #24
                  Indeed. Bad news and some good news...We lost two tow planes during our event, a bidule 111 lost control and totally destroyed for unknown reasons and this morning our beloved 1/3rd scale Super Cub DA-150 that I co built with Larry Sorenson...both struts on one side appear to have let go...heart breaking....Larry had hundreds and hundreds of flight on her over the last 8 years...

                  The good news, is that the tracking system allowed the guys to pretty much walk straight to their planes with tow lines still attached to the tow planes in 8 foot corn...blazing hot in there..

                  We discovered that we had one antennae break making the signal weaker.... we threaded the Antennae up into the Parachute line at the sailplane end and placed the transmitter itself inside orange golf Whiffle balls....we used small F3j parachutes to slow the descent and we had one accidental release by me and the line was spread out a lot more than if the parachute had not done it's job...

                  We will continue to experiment more but feel that all the money we spent IMMEDIATELY paid for itself in being able to quickly find planes in super dense high corn. The first day of the event I didn't make it back to the field and put my HKM-28 down in the corn and it took 4 of us over an hour to find that 7 meter plane in the same corn...almost died in that corn with the heat...wish I had placed a transmitter inside the sailplane...I plan to look more into that as well for future flying...

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