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Re: [TowerTalk] Antenna launcher found

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Antenna launcher found
From: W0MU Mike Fatchett <w0mu@w0mu.com>
Date: Mon, 20 Feb 2017 18:19:32 -0600
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
You can build the Air Boss or similar from parts at your favorite big box store and you will need a valve stem from the auto parts store. This is by far the easiest method I have tried and I had fun making it. It will fire the weights a long way up in the air. The issue I had was finding the line where it came down as fishing line is really hard to see. I would also suggest the spider wire. While expensive relative to other line, it is super strong.

W0MU


On 2/20/2017 10:26 AM, Jeff Draughn wrote:
Same here used it just this weekend, works like a champ!!

Jeff, N0OST


On Mon, Feb 20, 2017 at 8:54 AM Hardy Landskov <n7rt@cox.net> wrote:

Hi William,

I am with you. The air boss is very good and more accurate than the tennis

ball kind. (More mass, less drag.) But if you accidently got hit by one at

close range you would be in a world of hurt medically.

Now I need to find bottles of compressed air. The bicycle pump is ok but
can

be tiring.

Another hint: Paint your weights with fluorescent paint. Makes them easier

to find.

Hardy N7RT/4



-----Original Message-----

From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of

william radice

Sent: Monday, February 20, 2017 9:09 AM

To: towertalk@contesting.com

Subject: Re: [TowerTalk] Antenna launcher found



:::: How is it that all of you seem to be unaware of the fabulous antenna

launcher called the Air Boss?? No one seems to have mentioned it



http://www.kr4loairboss.com/



I've had this thing for several years and I can out up a wire anywhere,

anytime, in a few minutes. Why would you need anything else?



BILL



On 2/20/2017 8:08 AM, Patrick Greenlee wrote:

Be careful, be very careful. There is a reason PVC pipe is not allowed for

distributing shop air.  People do it out of ignorance or because money
means

more than safety to them. Google to see some pix of what shrapnel damage

from exploding PVC pipe can do. Because people aren't killed first time

every time they pressure up PVC pipe doesn't mean it isn't dangerous.



I bought a tennis ball launcher as a birthday gift for a friend. If I
recall

correctly it is called a K-9 Kannon.  It is made of plastic and uses large

rubber bands for launching the ball, ostensibly for a dog to retrieve,
hence

the name. There are several models ranging in cost from about $7.50 to $20.



Patrick        NJ5G





On 2/19/2017 10:42 PM, Mickey Baker wrote:

Being the cheap ham that I am, I built one from the plans on that site, but

a but a bit more robust.



I can launch a standard new tennis ball 250 meters at a ground level target

and much taller than anything around here. I have ropes in 70 foot pine

trees supporting wire antennas.



I hate the fishing reel that I'm using, so I should probably upgrade the

reel.



There's some margin for safety built in, but I wouldn't inflate more than

the recommended pressure with a PVC pressure vessel. A failure could be

dangerous.



Be safe, a tennis ball could hurt someone!



73,



Mickey N4MB

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