|
Wrist Rocket Height
I'm trying to restring my Dipole up in a Pine (the tree has grown
about 10 ft, and the rope needs replacing) so I got out my trusty Surgical tubing wrist rocket and a 1oz egg weight tied to my 15# test fishing rod/reel (only using the bottom eye). No matter how far I pulled back I got about 2/3s of the way up. Im estimating that is about the 35 ft level. Shouldn't a wrister go farther ???? need bigger weight ? Suggestions. |
Wrist Rocket Height
R.Scott wrote:
No matter how far I pulled back I got about 2/3s of the way up. Im estimating that is about the 35 ft level. Shouldn't a wrister go farther ???? need bigger weight ? Suggestions. Stand on a ladder when you shoot? New monofilament (more slippery than worn)? New rubbers? Skip the bottom eye on the pole and feed direct from the reel? Be sure you have a very solid wrist/arm on the holding arm. If your hand/arm gives while shooting, some of the energy will be used in that wasted hand movement. I saw a "wrist rifle" that a guy built. Normal WR attached to a wooden "stock" with bazooka-like hand holds. The pouch of the slingshot was held by a steel rod in the "cocked" position. Just like rubber band machine guns that kids might build. Craig 'Lumpy' Lemke www.n0eq.com |
Wrist Rocket Height
Lumpy wrote:
R.Scott wrote: No matter how far I pulled back I got about 2/3s of the way up. Im estimating that is about the 35 ft level. Shouldn't a wrister go farther ???? need bigger weight ? Suggestions. Stand on a ladder when you shoot? New monofilament (more slippery than worn)? New rubbers? Skip the bottom eye on the pole and feed direct from the reel? Be sure you have a very solid wrist/arm on the holding arm. If your hand/arm gives while shooting, some of the energy will be used in that wasted hand movement. I saw a "wrist rifle" that a guy built. Normal WR attached to a wooden "stock" with bazooka-like hand holds. The pouch of the slingshot was held by a steel rod in the "cocked" position. Just like rubber band machine guns that kids might build. Craig 'Lumpy' Lemke www.n0eq.com If legal use a potato gun.... Dave WD9BDZ |
Wrist Rocket Height
On May 15, 11:46 am, "R.Scott" wrote:
I'm trying to restring my Dipole up in a Pine (the tree has grown about 10 ft, and the rope needs replacing) so I got out my trusty Surgical tubing wrist rocket and a 1oz egg weight tied to my 15# test fishing rod/reel (only using the bottom eye). No matter how far I pulled back I got about 2/3s of the way up. Im estimating that is about the 35 ft level. Shouldn't a wrister go farther ???? need bigger weight ? Suggestions. Sounds like a bigger weight would help. |
Wrist Rocket Height
wrote in message ... On May 15, 11:46 am, "R.Scott" wrote: I'm trying to restring my Dipole up in a Pine (the tree has grown about 10 ft, and the rope needs replacing) so I got out my trusty Surgical tubing wrist rocket and a 1oz egg weight tied to my 15# test fishing rod/reel (only using the bottom eye). No matter how far I pulled back I got about 2/3s of the way up. Im estimating that is about the 35 ft level. Shouldn't a wrister go farther ???? need bigger weight ? Suggestions. Sounds like a bigger weight would help. depends... shoot the weight without the fish line and see how far it goes, that is the max you can get... if that's not enough try new tubes, those things do age and lose stretch... or longer tubes. for more height without the line try less weight and see if that gets where you need. then add the fishing line and see if that drags it down too much... if it does you need less drag or lighter line. either take the line out of the reel and let it spool free or unroll it on a smooth surface so it doesn't have to spin the roll. |
Wrist Rocket Height
|
Wrist Rocket Height
On May 15, 12:46*pm, "R.Scott" wrote:
I'm trying to restring my Dipole up in a Pine (the tree has grown about 10 ft, and the rope needs replacing) so I got out my trusty Surgical tubing wrist rocket and a 1oz egg weight tied to my 15# test fishing rod/reel (only using the bottom eye). No matter how far I pulled back I got about 2/3s of the way up. *Im estimating that is about the 35 ft level. Shouldn't a wrister go farther ???? * need bigger weight ? How high are you trying to go? With everything in my favor (wind, etc.) I could get over about a 50 foot branch with a wrist-slingshot and a 1oz weight. And I think I was standing on a 12 foot ladder to do it, and this was a "best ever" shot. Having the line catch on anything - grass, leaves, etc., is a major downer. If there's no brush on the ground you might get a little more height by spooling some line out in front of you. Others here regularly claim being able to get 100+ feet with a slingshot. I never said out loud that they're exaggerating, but I know I could just barely do half that. To get to 100feet I went straight to a tennis ball cannon. Tim. |
Wrist Rocket Height
On Fri, 16 May 2008 08:27:44 -0700 (PDT), Tim Shoppa
wrote: On May 15, 12:46*pm, "R.Scott" wrote: SNIP No matter how far I pulled back I got about 2/3s of the way up. *Im estimating that is about the 35 ft level. Shouldn't a wrister go farther ???? * need bigger weight ? How high are you trying to go? With everything in my favor (wind, etc.) I could get over about a 50 foot branch with a wrist-slingshot and a 1oz weight. And I think I was standing on a 12 foot ladder to do it, and this was a "best ever" shot. SNIP Tim. I couldn't get 50 feet with mine. I figured the line was too old, but I realized the sling was way overrated. I can do much, much better with a rod and reel. My favorite tool was a Bear 76er Bow and Arrow with a short string. It had a 50 lb pull and I could place an arrow with a screwdriver handle on the tip where ever I wanted it. The best was a converted shotgun. I took a shotgun shell and took out the shot, folded the plastic outer shell over the inner shell and stuck a wood dowel into it. On the far end of the dowel was a screwdriver with an eye hook onto which I tied a string. It cleared a 100 foot tree with room to spare, but I was afraid of the possibility of damaging the gun itself so I only tried this once. Buck N4PGW -- 73 for now Buck, N4PGW www.lumpuckeroo.com "Small - broadband - efficient: pick any two." |
Wrist Rocket Height
On May 16, 12:01*pm, Buck wrote:
The best was a converted shotgun. *I took a shotgun shell and took out the shot, folded the plastic outer shell over the inner shell and stuck a wood dowel into it. *On the far end of the dowel was a screwdriver with an eye hook onto which I tied a string. *It cleared a 100 foot tree with room to spare, but I was afraid of the possibility of damaging the gun itself so I only tried this once. * Wow, a shotgun. I wouldn't be so much scared of damaging the gun, but instead of the gun blowing up in my face! The tennis ball cannon I use is very very similar to the CSV19 at http://www.antennalaunchers.com/ and I am very very happy with it. It's not so much a "point above a crotch in the tree and hope the ball goes through" but "just shoot the ball and line over the tree". Tim. |
Wrist Rocket Height
Buck wrote:
...My favorite tool was a Bear 76er Bow and Arrow with a short string. It had a 50 lb pull and I could place an arrow with a screwdriver handle on the tip where ever I wanted it. The best was a converted shotgun. I took a shotgun shell and took out the shot, folded the plastic outer shell over the inner shell and stuck a wood dowel into it. On the far end of the dowel was a screwdriver with an eye hook onto which I tied a string... I'm having trouble picturing the "screwdriver handle" in both of those. Could you elaborate, please? Lumpy In Your Ears for 40 Years www.LumpyMusic.com |
Wrist Rocket Height
Tim- from my High school Physics== the Formula is: F= MA
Force = Mass Times Acceleration. Perhaps a Bow and Arrow will exceed the (Wrist Rocket) in this department? at 50# Pull for Acceleration? (Oz per Oz) Jim NN7K Tim Shoppa wrote: On May 15, 12:46 pm, "R.Scott" wrote: I'm trying to restring my Dipole up in a Pine (the tree has grown about 10 ft, and the rope needs replacing) so I got out my trusty Surgical tubing wrist rocket and a 1oz egg weight tied to my 15# test fishing rod/reel (only using the bottom eye). No matter how far I pulled back I got about 2/3s of the way up. Im estimating that is about the 35 ft level. Shouldn't a wrister go farther ???? need bigger weight ? How high are you trying to go? With everything in my favor (wind, etc.) I could get over about a 50 foot branch with a wrist-slingshot and a 1oz weight. And I think I was standing on a 12 foot ladder to do it, and this was a "best ever" shot. Having the line catch on anything - grass, leaves, etc., is a major downer. If there's no brush on the ground you might get a little more height by spooling some line out in front of you. Others here regularly claim being able to get 100+ feet with a slingshot. I never said out loud that they're exaggerating, but I know I could just barely do half that. To get to 100feet I went straight to a tennis ball cannon. Tim. |
Wrist Rocket Height
On Fri, 16 May 2008 10:39:11 -0700 (PDT), Tim Shoppa
wrote: On May 16, 12:01*pm, Buck wrote: The best was a converted shotgun. SNIP Wow, a shotgun. I wouldn't be so much scared of damaging the gun, but instead of the gun blowing up in my face! Wouldn't that be damaging the gun? The dowel I used in the barrel was a bit smaller so it wouldn't get jammed. I imagine if it were a larger diameter, it would have traveled further. Completely filling the barrel would make me expect an uncontrolled explosion... -- 73 for now Buck, N4PGW www.lumpuckeroo.com "Small - broadband - efficient: pick any two." |
Wrist Rocket Height
I'm having trouble picturing the "screwdriver handle" in both of those. Could you elaborate, please? Lumpy The arrow had a screwdriver that had the shaft trimmed and tapped for the screw thread of the arrow head. The stick had a hole drilled in it and the phillips screwdriver stuck inside the dowel and glued. -- 73 for now Buck, N4PGW www.lumpuckeroo.com "Small - broadband - efficient: pick any two." |
Wrist Rocket Height
Suggest you try a fishing pole. I used a zebco casting rod I bought
new for my wife. Now my favorite antenna pole. I put my L up over 50' this way. Use 6 pound test line. Heaver line weights too much. even 4 is better. Get a large washer. 2" or so. Tie it on. cast up . If you miss your spot let the washer fall to the ground. Do not reel back thru the tree. Cut off washer. reel back and tie on and try again. The washer weights enough so it doesn't get caught easily in trees. It goes so far be careful you do not damage others cars or homes. It never broke off. When you get your spot tie on Thin nylon cord and reel it back. Then a larger rope. The washer rolls as it falls preventing tangling. Try it in a shorter tree for practice. fishing sinkers do not work well, they wrap around branches. john wzy vvvvvvvvvvvvvvvvvvvvvv w9zy On May 15, 1:13*pm, "Lumpy" wrote: R.Scott wrote: No matter how far I pulled back I got about 2/3s of the way up. *Im estimating that is about the 35 ft level. |
Wrist Rocket Height
FWIW, I use 8lb monofiliament line and a 3oz fishing weight, and like
others, cast it over the tree with a fishing pole. Wristrockets can't compare. Also, in response to another poster, I have never had a fishing weight wrap around a tree branch as long as it is allowed to fall to the earth. In other words, allow the line to freely flow out until the weight has dropped to the ground. Russ W6OHM "R.Scott" wrote in message ... I'm trying to restring my Dipole up in a Pine (the tree has grown about 10 ft, and the rope needs replacing) so I got out my trusty Surgical tubing wrist rocket and a 1oz egg weight tied to my 15# test fishing rod/reel (only using the bottom eye). No matter how far I pulled back I got about 2/3s of the way up. Im estimating that is about the 35 ft level. Shouldn't a wrister go farther ???? need bigger weight ? Suggestions. |
Wrist Rocket Height - DILEMMA 2
Well my Antenna Im trying to raise and replace the rope is STUCK.
It seems after all this time the tree has trapped the rope up there, and the antenna is Too high for me to reach the rope with my Tree Trimmer on a ladder (its 20ft long) SOOO, how does one get the rope to break or what can i pull up with a rope if I toss it over the old rope to cut the line (Ive already pulled as hard as I dare, its STUCK) Sheesh Simple antenna projects never seem to be simple Scotty W7PSK |
Wrist Rocket Height
On Fri, 16 May 2008 10:39:11 -0700 (PDT), Tim Shoppa
wrote: snip........... The tennis ball cannon I use is very very similar to the CSV19 at http://www.antennalaunchers.com/ and I am very very happy with it. It's not so much a "point above a crotch in the tree and hope the ball goes through" but "just shoot the ball and line over the tree". Tim. I built the QE-19 from the same site Tim mentioned. The "air valve" for it is off-the-shelf so it's a plug-n-play project. It beats every fishing rod, bow & arrow, sling shot..... anything I've ever tried before. Beats them hands down. It'll easily clear a 100 foot height and is accurate after you shoot it a couple times. It's a little pricey but that could be spread out if it were to become a club project. Kingfish |
Wrist Rocket Height
On May 19, 1:06*pm, wrote:
On Fri, 16 May 2008 10:39:11 -0700 (PDT), TimShoppa wrote: snip........... The tennis ball cannon I use is very very similar to the CSV19 at http://www.antennalaunchers.com/and I am very very happy with it. It's not so much a "point above a crotch in the tree and hope the ball goes through" but "just shoot the ball and line over the tree". Tim. I built the QE-19 from the same site Tim mentioned. *The "air valve" for it is off-the-shelf so it's a plug-n-play project. *It beats every fishing rod, bow & arrow, sling shot..... anything I've ever tried before. *Beats them hands down. *It'll easily clear a 100 foot height and is accurate after you shoot it a couple times. *It's a little pricey but that could be spread out if it were to become a club project. My impression is that the CSV19, with its modified sprinkler valve, has a higher muzzle velocity than the QE-19. But overall, I agree 100%, that for me the tennis ball launcher was far and away the best choice. I have some friends who are very good with crossbows and they tell me that I'm wrong, that the crossbow will do the job more reliably and accurately than my tennis ball cannon, but I don't have a crossbow and don't really intend to learn how to use one. I don't really want to shoot arrows into my neighbor's property either. The tennis ball cannon just made the job so easy, and literally the only gotcha is that you'll not only send the ball over the target tree, but probably the trees behind it if you aren't careful. One trick I learned very quickly: When you see the ball go over the target tree, grab the fishing line and stop it, then let it go so the ball can just fall from there. My trees are at the very edges/corners of my property, and using this trick I was able to ensure that the support lines are also within the property. Tim N3QE |
Wrist Rocket Height - DILEMMA 2
On May 19, 12:08*am, "R.Scott" wrote:
Well my Antenna Im trying to raise and replace the rope is STUCK. It seems after all this time the tree has trapped the rope up there, and the antenna is Too high for me to reach the rope with my Tree Trimmer on a ladder (its 20ft long) SOOO, how does one get the rope to break or what can i pull up with a rope if I toss it over the old rope to cut the line *(Ive already pulled as hard as I dare, its STUCK) Climb up a ladder, cut it as high as you can. The tree-trimmer-on-a-pole doohinkeys don't work well at all for cutting ropes. Next time use black ropes, they stand out a lot less than those fluorescent orange ones! Tim. |
Wrist Rocket Height
R.Scott wrote:
I'm trying to restring my Dipole up in a Pine (the tree has grown about 10 ft, and the rope needs replacing) so I got out my trusty Surgical tubing wrist rocket and a 1oz egg weight tied to my 15# test fishing rod/reel (only using the bottom eye). No matter how far I pulled back I got about 2/3s of the way up. Im estimating that is about the 35 ft level. Shouldn't a wrister go farther ???? need bigger weight ? Suggestions. I've shot over 100 feet high with a Wrist Rocket using a 2 oz weight and about 6 pound test fishing line. Make sure your fishing reel is nearly full, to minimize the resistance as the line comes off. Roy Lewallen, W7EL |
Wrist Rocket Height
On Mon, 19 May 2008 10:25:04 -0700 (PDT), Tim Shoppa
wrote: On May 19, 1:06*pm, wrote: On Fri, 16 May 2008 10:39:11 -0700 (PDT), TimShoppa wrote: snip........... The tennis ball cannon I use is very very similar to the CSV19 at http://www.antennalaunchers.com/and I am very very happy with it. It's not so much a "point above a crotch in the tree and hope the ball goes through" but "just shoot the ball and line over the tree". Tim. I built the QE-19 from the same site Tim mentioned. *The "air valve" for it is off-the-shelf so it's a plug-n-play project. *It beats every fishing rod, bow & arrow, sling shot..... anything I've ever tried before. *Beats them hands down. *It'll easily clear a 100 foot height and is accurate after you shoot it a couple times. *It's a little pricey but that could be spread out if it were to become a club project. My impression is that the CSV19, with its modified sprinkler valve, has a higher muzzle velocity than the QE-19. But overall, I agree 100%, that for me the tennis ball launcher was far and away the best choice. I have some friends who are very good with crossbows and they tell me that I'm wrong, that the crossbow will do the job more reliably and accurately than my tennis ball cannon, but I don't have a crossbow and don't really intend to learn how to use one. I don't really want to shoot arrows into my neighbor's property either. The tennis ball cannon just made the job so easy, and literally the only gotcha is that you'll not only send the ball over the target tree, but probably the trees behind it if you aren't careful. One trick I learned very quickly: When you see the ball go over the target tree, grab the fishing line and stop it, then let it go so the ball can just fall from there. My trees are at the very edges/corners of my property, and using this trick I was able to ensure that the support lines are also within the property. Tim N3QE A lead weight from a slingshot or an arrow from a bow will clear most anything if the string is set up correctly. But both are fairly dangerous coming down if the string breaks. That's the good thing about the tennis ball cannons, I think they're safer. I chose the QE-19 because the components were off-the-shelf and required no modification. Kingfish |
Wrist Rocket Height - DILEMMA 2
Tim Shoppa wrote:
On May 19, 12:08 am, "R.Scott" wrote: Well my Antenna Im trying to raise and replace the rope is STUCK. It seems after all this time the tree has trapped the rope up there, and the antenna is Too high for me to reach the rope with my Tree Trimmer on a ladder (its 20ft long) SOOO, how does one get the rope to break or what can i pull up with a rope if I toss it over the old rope to cut the line (Ive already pulled as hard as I dare, its STUCK) Climb up a ladder, cut it as high as you can. The tree-trimmer-on-a-pole doohinkeys don't work well at all for cutting ropes. I cant get to the rope, I can reach about 1/3 of my antenna .. dont want to leave that up there :) I figure out something. |
Wrist Rocket Height - DILEMMA 2
How do you get the rope down? How about attaching to the bumper of
your car and slowly driving away from the tree? Pad the 'edges' of the bumper, they like to 'eat' rope. Hope the rope is weaker than the tree. Was on the receiving end of a piece of 30-40 foot nylon cord I was trying to get off of a lamp post. You might be surprised at what that stuff will feel like when it snaps and hits you. Took a few days, but the welts finally disappeared. The memory will last forever! - 'Doc PS - Having a hardware store hanging from a tree is a sure sign of a dedicated ham! Sort of a huge wind-chime, right? |
Wrist Rocket Height - DILEMMA 2
On Wed, 21 May 2008 07:51:33 -0700 (PDT) in
rec.radio.amateur.antenna, wrote, How do you get the rope down? How about attaching to the bumper of your car and slowly driving away from the tree? Pad the 'edges' of the bumper, they like to 'eat' rope. Hope the rope is weaker than the tree. Be sure to get it on video when you pull the tree down onto your car! |
Wrist Rocket Height
Jim-NN7K wrote:
Tim- from my High school Physics== the Formula is: F= MA Force = Mass Times Acceleration. Perhaps a Bow and Arrow will exceed the (Wrist Rocket) in this department? at 50# Pull for Acceleration? (Oz per Oz) Jim NN7K more relevant is the 2ad=v^2 equation... height goes as the square of the launch velocity, neglecting air drag and line drag. but, where the bow and arrow really excel is in the overall larger mass of the projectile and higher launch energy (mostly the latter. the arrow is a couple or three ounces.. same as the wrist rocket.. but the bow will easily have a 50 lb draw and longer distance. See, e.g., http://www.stortford-archers.org.uk/medieval.htm for some discussion of bow and arrow physics Tim Shoppa wrote: On May 15, |
Wrist Rocket Height
Tim Shoppa wrote:
On May 19, 1:06 pm, wrote: On Fri, 16 May 2008 10:39:11 -0700 (PDT), TimShoppa wrote: snip........... The tennis ball cannon I use is very very similar to the CSV19 at http://www.antennalaunchers.com/and I am very very happy with it. It's not so much a "point above a crotch in the tree and hope the ball goes through" but "just shoot the ball and line over the tree". Tim. I built the QE-19 from the same site Tim mentioned. The "air valve" for it is off-the-shelf so it's a plug-n-play project. It beats every fishing rod, bow & arrow, sling shot..... anything I've ever tried before. Beats them hands down. It'll easily clear a 100 foot height and is accurate after you shoot it a couple times. It's a little pricey but that could be spread out if it were to become a club project. My impression is that the CSV19, with its modified sprinkler valve, has a higher muzzle velocity than the QE-19. But overall, I agree 100%, that for me the tennis ball launcher was far and away the best choice. I have some friends who are very good with crossbows and they tell me that I'm wrong, that the crossbow will do the job more reliably and accurately than my tennis ball cannon, but I don't have a crossbow and don't really intend to learn how to use one. I don't really want to shoot arrows into my neighbor's property either. A very important point. In many areas, firing a crossbow (which is generally perceived as a lethal weapon) at anything other than a designated target would set you up for a lot of hassles with the local constabulary, or worse. The tennis ball launcher (avoid the "cannon" term..) looks less "weapon-y" |
Wrist Rocket Height
Jim Lux wrote:
... The tennis ball launcher (avoid the "cannon" term..) looks less "weapon-y" Not that shoulder fired one that everyone's been looking at..:-) http://www.antennalaunchers.com/antlaunching.html It looks like an RPG. Wander around aiming that thing at the top of your trees while the gendarmerie rides past and I'll bet you'll be asked to "DO IT NOW". Craig 'Lumpy' Lemke www.n0eq.com |
Wrist Rocket Height
Hi Al W6LX, et. al. --
I bought a 'real' EZ HANG from Dennis (KG4ETM) at Dayton, (http://ezhang.com) and after taking a few trial shots I had *no* problem shooting the one ounce weight over a 135+ foot Tulip Poplar tree in my back yard in northern Virginia. The tree was so tall that I used -all- 300 feet of the monofilament line and the weight ended up about three feet off the ground. My point is that if you use an "EZ Hang" (or a counterfeit) properly, that thing really works! Wish you were closer so I could show you. It's a great gadget! --------------- News Features wrote: Jim's calculations have confirmed something I've consistently experienced: my homebrew EZ-Hang has never really lived up to my expectations, or should I say the expectations that others have set for the performance of the thing. (For the record, my homebrew device is an exact copy of the famous EZ-Hang.) For the past three Field Days, which is when I've used the thing, the maximum height I've seemed to attain is around 50 feet-- right in the ballpark for a 1 oz. weight with line and air drags. No matter what I've tried, that's the limit of height for the parameters of my situation. Thanks, Jim. Al W6LX |
Wrist Rocket Height
SWLer wrote:
Hi Al W6LX, et. al. -- I bought a 'real' EZ HANG from Dennis (KG4ETM) at Dayton, (http://ezhang.com) and after taking a few trial shots I had *no* problem shooting the one ounce weight over a 135+ foot Tulip Poplar tree in my back yard in northern Virginia. The tree was so tall that I used -all- 300 feet of the monofilament line and the weight ended up about three feet off the ground. How far back do you pull, and how hard? |
Wrist Rocket Height
Jim Lux wrote: SWLer wrote: Hi Al W6LX, et. al. -- I bought a 'real' EZ HANG from Dennis (KG4ETM) at Dayton, (http://ezhang.com) and after taking a few trial shots I had *no* problem shooting the one ounce weight over a 135+ foot Tulip Poplar tree in my back yard in northern Virginia. The tree was so tall that I used -all- 300 feet of the monofilament line and the weight ended up about three feet off the ground. How far back do you pull, and how hard? With elbow locked and arm fully extended, I pulled the rubbers back to my ear. *!Remember to always wear eye protection!* |
Wrist Rocket Height
On May 23, 4:21 pm, SWLer wrote:
Jim Lux wrote: SWLer wrote: Hi Al W6LX, et. al. -- I bought a 'real' EZ HANG from Dennis (KG4ETM) at Dayton, (http://ezhang.com) and after taking a few trial shots I had *no* problem shooting the one ounce weight over a 135+ foot Tulip Poplar tree in my back yard in northern Virginia. The tree was so tall that I used -all- 300 feet of the monofilament line and the weight ended up about three feet off the ground. How far back do you pull, and how hard? With elbow locked and arm fully extended, I pulled the rubbers back to my ear. *!Remember to always wear eye protection!* So.. about 30 inches (based on the wrist rocket I have).. care to guestimate how hard you're pulling? (maybe I can make some measurements on my old wrist rocket..) |
Wrist Rocket Height
|
Wrist Rocket Height
Lumpy wrote:
Jim Lux wrote: ... The tennis ball launcher (avoid the "cannon" term..) looks less "weapon-y" Not that shoulder fired one that everyone's been looking at..:-) http://www.antennalaunchers.com/antlaunching.html It looks like an RPG. Wander around aiming that thing at the top of your trees while the gendarmerie rides past and I'll bet you'll be asked to "DO IT NOW". Just for added effect, when I made my tennis ball launcher I spray- painted it yellow and then added black stencils with BIOHAZARD and FALLOUT SHELTER symbology on. And then I stenciled BUTTERCUP on for the opposite impression :-). I'm sure that some people are comfortable with lead weights flying through the air, or with crossbows. Me, I just happen (perhaps through lack of ability with the other two - I tried, but failed with slingshot and crossbow, but the tennis ball cannon worked the first time!) to be pefectly comfortable with the tennis ball cannon. And it worked, man it worked. I am so so so happy with the resulting antenna, 100 feet up between two trees. Tim N3QE |
Wrist Rocket Height - EPILOGUE
Well I finally got the rope cut, I Duct Taped my Tree trimmer
extended to 2 10 foot Rat Shack Mast pieces I had, that and getting on the ladder a bit I was able to get up into the rope enough to cut it. Now the Good News is I changed Reels in the wrist rocket, I was using Open Faced but noticed all the ones on the net had a Zebco. So I grabbed a spare zebco, walked out and zinngg right to the top of the tree, and then it slid down slick as can be. Sent up the messenger string (small nylon) and pulled the main cable back over and up went the antenna. All is well now, I got frustrated cause the open faced would let it spool out proper it was either short or hung up. Zebco worked peach. Thanks for all the help folks Scotty W7PSK. |
Wrist Rocket Height
Tim Shoppa wrote:
On May 15, 12:46 pm, "R.Scott" wrote: I'm trying to restring my Dipole up in a Pine (the tree has grown about 10 ft, and the rope needs replacing) so I got out my trusty Surgical tubing wrist rocket and a 1oz egg weight tied to my 15# test fishing rod/reel (only using the bottom eye). No matter how far I pulled back I got about 2/3s of the way up. Im estimating that is about the 35 ft level. Shouldn't a wrister go farther ???? need bigger weight ? How high are you trying to go? With everything in my favor (wind, etc.) I could get over about a 50 foot branch with a wrist-slingshot and a 1oz weight. And I think I was standing on a 12 foot ladder to do it, and this was a "best ever" shot. Having the line catch on anything - grass, leaves, etc., is a major downer. If there's no brush on the ground you might get a little more height by spooling some line out in front of you. Others here regularly claim being able to get 100+ feet with a slingshot. I never said out loud that they're exaggerating, but I know I could just barely do half that. To get to 100feet I went straight to a tennis ball cannon. Tim. A little late to this thread so may be redundant. I have used a compound bow and arrow attached to a fishing reel and the problem I had was firing TOO high and overshooting the target. you could give it a try. John AB8O |
Wrist Rocket Height
On Fri, 06 Jun 2008 17:07:34 -0400, john Wiener
wrote: Tim Shoppa wrote: On May 15, 12:46 pm, "R.Scott" wrote: I'm trying to restring my Dipole up in a Pine (the tree has grown about 10 ft, and the rope needs replacing) so I got out my trusty Surgical tubing wrist rocket and a 1oz egg weight tied to my 15# test fishing rod/reel (only using the bottom eye). No matter how far I pulled back I got about 2/3s of the way up. Im estimating that is about the 35 ft level. Shouldn't a wrister go farther ???? need bigger weight ? How high are you trying to go? With everything in my favor (wind, etc.) I could get over about a 50 foot branch with a wrist-slingshot and a 1oz weight. And I think I was standing on a 12 foot ladder to do it, and this was a "best ever" shot. Having the line catch on anything - grass, leaves, etc., is a major downer. If there's no brush on the ground you might get a little more height by spooling some line out in front of you. Others here regularly claim being able to get 100+ feet with a slingshot. I never said out loud that they're exaggerating, but I know I could just barely do half that. To get to 100feet I went straight to a tennis ball cannon. The guys at FD were putting the weight over the top of the athletic field lights and those are about a 100. I can't but several of them could. One it took about 5 tries. :-)) Roger (K8RI) ARRL Life Member N833R (World's oldest Debonair) www.rogerhalstead.com |
| All times are GMT +1. The time now is 06:01 AM. |
Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
RadioBanter.com