big shot max height

GregManning said:
...The bands would contract at the same rate; with no additional length.
i.e. The same initial acceleration (which is relatively high); but the mass is relatively small.
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I would expect a substantial increase in velocity as you would have twice the force to overcome the mass of the throw weight.

I would also have concerns about the strength of the pole used. Splintered fiberglass does not paint a pretty picture.
 
Correct.
Yes, but the bands are also decelerating very rapidly. e.g. They are down to near zero in ~5 - 6 ft ?
I don't think the height will be that much different.
(Me thinks that "SOMEONE" is going to try it soon ! )

Pole strength is certainly a concern. I guess that CYA is why a single manufacturer is referenced.

With the APTL the air pressure would have a much higher ratio of force maintained until the throw ball exits the tube, before the the air pressure force is finally relieved.
 
Two BS's put together with the tubing between the poles and fastened to a single pouch might provide a safe and expedient platform for testing.
 
I use two or three bands on my speargun depending on what I'm hunting..if you could figure out a solid mount for bands at the muzzle and pouch ends that you could easily add or subtract a band on b.s. or make it semipermanent until retirement on the either end and stick with two ,just not need to stretch them as far for lower shots . I believe if they were similar in power to what comes stock w big shot the pole would hold up to the force. I have no evidence to back that statement up just my feeling. You could just get a beefier band all together or change the legnth of the one band to add more power . Maybe covered this already in this thread , I'm not up to speed with all the posts , just since this morning.
 
treebing said:
ngload:

Here is a gun with three bands!
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I think I have seen more than that on tuna guns even.I've seen up to five I think. That's a big fish gun though. They use dyneema for the wishbone on that style with fins on the spear. Might be a thought for how strong it I'd be for some secondary band addition. Make some part like that the weak link as opposed to the pole itself
 
I think Mossberg used to make a line launcher or maybe the Soviets have some old rockets they don't need anymore, lol. What are you guys doing, shooting over skyscrapers lol? No disrespect meant by the "Soviets", I just don't know what the pc name is for that region of the world anymore.
 
There's a few trees I have my eye on for rec climbs that arent exactly short. If you could add just a bit more power stored in another band and hold it with a release as oppsed to hand release which is higher but less accurate. Would translate to more accuracy not so much about heights. Though if you feel like shooting the moon one night it wouldn't hurt to have that power.
 
monkeylove said:
I think Mossberg used to make a line launcher or maybe the Soviets have some old rockets they don't need anymore, lol. What are you guys doing, shooting over skyscrapers lol? No disrespect meant by the "Soviets", I just don't know what the pc name is for that region of the world anymore.
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Just a thought ……….

If you are setting an adjustable false crotch, or an SRT ascent line, you may want to send the throw ball laterally over a few limbs that would be more than the equivalent of an 80’ hand toss.

(by the way, as Whiz might say, my personal throw line “sucks” ! )
 
Just another thought ………..
Some comments have indicated that a hand release, versus a mechanical release, make a difference on the height achieved.

This makes no sense to me.
Perhaps something else influenced their “tests”.

The micro-second difference between a hand / finger release, and a mechanical release is insignificant.
Accuracy is a different story.

Once released, the rubber band will start & stop at the same positions.
 
Greg I don't think it is the release itself, I think it is the preloaded bands that weaken slightly if held stretched for to long.
 
We use a regular big shot to set lines in redwoods on a few occasions. The last time we hand pulled and set it over 200'. We actually used a 4 oz casting weight and monofilament fishing line (like Jerry taught me). You can probably get 230' regularly if the BS is pretty new.
 
yeah I think it has to do with the settling in of the bands when prestretched and shot with a trigger.

there is absolutely no need for me to ever shoot a 10 ounce bag 200 feet but I would sure love to do it for the hell of it.
 
MARK_CHISHOLM said:
We use a regular big shot to set lines in redwoods on a few occasions. The last time we hand pulled and set it over 200'. We actually used a 4 oz casting weight and monofilament fishing line (like Jerry taught me). You can probably get 230' regularly if the BS is pretty new.
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Do you pull climb lines into place with mono or go to a different throw line in between for hauling climb line? I guess the mono is strong I could just see it cutting into bark and getting jammed . Ive never gone into trees that tall where mono would be essential or helpful in reaching the height needed.
 
The fishing line is used to pull a throw line up then you can install a rope.

Fishing line is a PTA, it's a worthy cause to try for higher throw bag/throwline shots with a BS.

I have a custom slingshot on a 10' pole, I've reached a 135' limb in winter conditions with it. My tubing is smaller diameter than BS tubing, for max height I use an 8oz bag with ZingIt 1.75mm. Slings are stretched a full 10' for the max throw. In normal air temps I should be able to reach 160' but never had a need to, yet.

Firing in severe cold I've had my tubing turn into thin curly spaghetti and not contract at all, just 10' of slack tubing hanging there. Amazingly no damage to the tubing, once it was warmed up it returned to normal.
-AJ
 
FWIW....Treestuff has a winter sale until the Jan 30 '15 with 16% off a few manufacturer's products.

The APTA is included. I'll be able to compare it to the BS in a few days.:sisi:
 
Treetopflyer said:
Do you pull climb lines into place with mono or go to a different throw line in between for hauling climb line? I guess the mono is strong I could just see it cutting into bark and getting jammed . Ive never gone into trees that tall where mono would be essential or helpful in reaching the height needed.
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Throwline is step 2. We used reels of fishing line and if we miss we cut it and start fresh. Reeling it back in would be awful.
 
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