I seem to remember NT roads have plastic posts 330m apart and you just knock
them down to land on highway. Paul Mander landed his ASH between posts OK.
Perhaps the bull could knock them down so may not satisify the farmer - I
just do not know Ian M
----- Original Message -----
From: "Christopher Mc Donnell" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; "Discussion of issues relating to
Soaring in Australia." <[email protected]>
Sent: Tuesday, February 27, 2007 3:16 PM
Subject: Re: [Aus-soaring] P.S. My previous
Anthony, you said:
Of note was that prop aircraft would chew their way through
the barrier nets. Also the barrier nets were unsuitable for
the two seat Hornets (but OK for the single seat) as the
rear seat was too elevated and would get struck by the top
cable that supported the net during an arrest.
Anthony, I envisaged the net only as being a sufficient barrier for rural
stock purposes and not to "stop" gliders overrunning.
The net could be supported by short grained pinus posts over 25 to 30
metres, similar to the specification for road guide posts, which would
snap off on impact allowing the glider through causing no injury to the
occupants and little or none to the glider.
CMcD
----- Original Message -----
From: "Anthony Smith" <[EMAIL PROTECTED]>
To: "Discussion of issues relating to Soaring in Australia."
<[email protected]>
Sent: Tuesday, February 27, 2007 12:44 PM
Subject: Re: [Aus-soaring] P.S. My previous
That would be interesting. Although I like the kitty litter
idea too - I can see that being a far better proposal than
some of the others. I will get the specs from you in the not
too distant future.
Some time ago I was the engineer in charge of the RAAFs
arrestor systems for a couple of years which included the
arrestor wires and the barrier nets.
Of note was that prop aircraft would chew their way through
the barrier nets. Also the barrier nets were unsuitable for
the two seat Hornets (but OK for the single seat) as the
rear seat was too elevated and would get struck by the top
cable that supported the net during an arrest.
You can also buy netting commercially which is adequate
for sheep or cattle retention to replace the fencing wire.
25 to 30 meters should do.
Similar principle to the nets used as a last resort in
carrier deck ops. My two alternatives however only relate
to a home field. Both alternatives are cheap.
Barossa Valley GC have a removable fence, but you are
getting into neighbour issues there.
CMcD
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