Your in the right area, but you might want to use a POTATO CANON - like the
fisherman due at the beach to get the line out a couple hundred yards.

They use a metal pipe or heavy duty plastic pipe, with 1 end buried in the
sand and a small pinhole to light it off (for safety, you could use some
kind of fuse in the hole)..

Most of them use hairspray and a piece of POTATO with the hook embedded in
it.. abt 4-5 squirts of the hairspray and the potato.

My $00.02
73's

"Edward Feustel" wrote in message
...

"AC7PN" wrote in message
oups.com...
I need to clear a grove of 100ft pine trees and it just ain't
happenning. My sling shot is only making it to a height of about 70ft.
Way short.

I've built a canon from sched 40 PVC with a 4" section reduced to a to
1" section which is about 4ft long. I'm using lighter fluid and a spark
ignition. A 1" dowel weighted with 2oz of lead fits in the 2" PVC with
a close fit. This still doesn't get over the grove of trees. It seems
the lighter fluid just doesn't have enough power. Maybe I'm putting in
too much or not enough fluid. How do you know if you have the right
fuel air mix? I've heard that some use butane or propane in these.

Thanks
Bob Brunius

Based on my last experience, I suggest that you borrow a compound hunting
cross bow
and no-point fishing arrows (they are substantially heavier) with at least
a 50 lb pull.
Use a fishing reel with fishing line that is light but strong. If the line
is too light it will
probably break. Use the fishing line to pull over twine or something
heavier and
then a multicore Dacron rope. Allow for enough line to go over the "grove"
by about 3 times

I use the end ropes to support pulleys and lines through the pulleys to
support the
antennas. One pulley rope is tied off. The other has 5 8-gallon
containers of
anti-freeze that serve as the balancing counterweight for the 220 foot
antenna
of #10 copperweld that is centerfed with 600 ohm ladder line.

Regards,
Ed, N5EI