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8814Re: [GPSL] Trees

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  • Mike Manes
    Nov 2, 2010
      I shudder to think of how the parachute might behave in the rotor
      downwash :=P.
      73 de Mike W5VSI

      On 11/2/2010 16:56, Meer, Stephen wrote:
      >
      >
      > How about a R/C rescue helicopter?
      >
      > /s/SM2 K0SCC
      >
      > *From:*GPSL@yahoogroups.com [mailto:GPSL@yahoogroups.com] *On Behalf Of
      > *wb8elk@...
      > *Sent:* Tuesday, November 02, 2010 4:43 PM
      > *To:* GPSL@yahoogroups.com
      > *Subject:* Re: [GPSL] Trees
      >
      > Mark,
      >
      > We've been toying with just such a concept called "Rapunzel"....where the lead
      > weight on a spool is released after landing in hopes it will make it way to
      > the ground.
      >
      > - Bill WB8ELK
      >
      > We've used the chain saw method on many occasions (although tree-climbing
      > engineering students also are quite effective)....we land in trees about 50
      > percent of the time... or in lakes.
      > The only drawback to the chainsaw method is that the landowner sometimes asks
      > us to cut the tree up in 2-foot lengths and stack it up near the house.
      >
      > Anyone thought of building a tree-climbing robot??
      >
      >
      > -----Original Message-----
      > From: Mark Conner <mconner1@...>
      > To: GPSL@yahoogroups.com
      > Sent: Tue, Nov 2, 2010 4:37 pm
      > Subject: Re: [GPSL] Trees
      >
      > We have had more fortune than some of Howard's exploits - in 40-some flights
      > we have had only two tree landings (and Paul was there for one of them). Most
      > of eastern Nebraska and western Iowa is blessedly free of trees when compared
      > to the Midwest or South.
      >
      > Even so, we carry an extensible pole (believe it's primarily for painting,
      > also used by an NSTAR member to hang Christmas lights) with a hook on the end.
      > On the first tree landing flight, Paul was able to climb the tree some
      > distance and snag it with a short length of the pole. The very next flight, we
      > landed in a tree yet again about 30 feet up. We were just able to snag one of
      > the payloads and bend the entire tree over (they were tall but spindly) to
      > pull the entire flight train out.
      >
      > I have had thoughts of including ~50 ft of line terminated with a lead weight
      > hanging from the bottom payload. The idea is that that line would perhaps hang
      > down within easier reach and allow the recovery team to pull the flight string
      > out of the tree. Or, if one were really good at such things, have the line
      > spooled inside a payload and released when it detected that it's landed. The
      > weight would hopefully fall somewhat cleanly through the branches to ground
      > level. Of course Murphy could play havoc with either solution and you end up
      > still needing one of the other methods.
      >
      > A chain saw with sufficient gasoline and oil is probably the most reliable
      > solution.
      >
      > 73 de Mark N9XTN
      >
      > On Sun, Oct 31, 2010 at 19:52, L. Paul Verhage <nearsys@...
      > <mailto:nearsys@...>> wrote:
      >
      >
      >
      > My latest flight took three hours to remove from trees. What is everyone
      > carrying for tree removal?
      >
      > --
      > Onwards and Upwards,
      > Paul
      >
      >
      >
      >

      --
      Mike Manes mrmanes@... Tel: 303-979-4899
      "Things should be made as simple as possible, but not more so."
      A. Einstein
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