Speedlining

Ekka · 31st October 2007, 07:54 PM

Dont forget guys, a tensioned speed line can exert up to 5x the weight of the cut piece at the ends/termination knots. So dumping onto them really compounds the issue.

jim1nz · 1st November 2007, 10:56 AM

Tention with a 3 or 5:1 works well, with a GCRS or vehicle but this is the LAST option as you can measure the tension being applied accurately. Remember the side loading forces in speedlining are something to know and respect.

Speedlining is a controlled lowering system, it shouldnt be abused by cutting out pieces streight onto the main line. As Ekka says 5x yea well thats the thing, it could be 15x who knows, sure you can do testing but every single rig is different.

Just stay well within the gear, the trees capabilitys.

Ekka · 1st November 2007, 01:19 PM

And dont forget there is always vertical speed line if you need to block down chunks on a hill etc ... stops runaways.

Vertical speed line, a nice trick

DoG · 20th November 2007, 07:48 PM

Thanks for your comments Ekka and Jim1NZ. When rigging, it's about angles, forces,
proper cut and direction of fall. I gave it much thought before doing the speedline
because I did not want to damage my shed or my next door neightbors fence, who
happens to be my boss.

I set the speedline at about 55 ft.
and tied the end to a nearby tree about 12 feet away. The approximate
angle of the speedline was 60-70 degrees. What do you figure the added
weight was. Limb was about 20-25 feet long and around 200-300 pounds.
Your experience and knowledge are most welcome.

Ekka · 20th November 2007, 07:53 PM

That's a good incline angle, I take it 90 degrees is straight down and 60 degrees is between straight down and 45 degrees.

You weren't bombing the pieces onto it were you?

DoG · 21st November 2007, 01:29 PM

Yes, you have the picture right. The end of the speedline was tied into a tree to be
taken down at about 20-25 feet. So alot of the force of the falling limb were taken
on the ground about 6 feet from the tree. What do you estimate the weight on the
half inch rope was at it's most stressed point, using 200 pounds for the weight of the
limb? My thoughts were that it was going to take the most stress on the rope within
the first 3-4 feet. I think Jim1's comment was spot on. Each situation is different and
if you have a basic knowledge of physics, you'll do OK most of the time.

Ekka · 22nd November 2007, 07:10 PM

I guess anywhere between 200lbs and 1000lbs.

newguy18 · 22nd November 2007, 07:15 PM

Since I've never had too use a speedline am I missing out on something?What all is needed to set one up?I'm looking to expand my tool box anyway.

Therrin · 22nd November 2007, 07:22 PM

I've never used speedlining either. (must be one of those niffty things you guys learn in arb school).

I can see some immediate applications for it though, was already thinking of using it on a new site I'm workin on. I think I understand the setup, but if someone's willing to be patient with Newguy and I, I'm sure we'd appreciate it =)

newguy18 · 22nd November 2007, 07:25 PM

Arb school?i taught myself dude strictly hands on t and e.

Therrin · 22nd November 2007, 07:32 PM

You apparently missed my meaning... I was grouping you and I in the same boat (ie. "I taught myself dude")

The crack was aimed at those who HAVE official arb training

newguy18 · 22nd November 2007, 07:37 PM

Oh i see I figure a good double braid block and tackle for tensioning and a portawrap.

Therrin · 22nd November 2007, 07:40 PM

Wow, you're pretty stodgy. I might throw a pulley in there as well

newguy18 · 22nd November 2007, 07:42 PM

slings and snaps spliced into them just girth hitch and away they go.LOOK OUT BELOW.

Therrin · 22nd November 2007, 07:52 PM

I can see we've been watching the same video ;-)

Guess we didn't need to ask afterall.

newguy18 · 22nd November 2007, 07:55 PM

vertical speedline?

Therrin · 22nd November 2007, 07:56 PM

vsl.wmv the same =)

31st October 2007, 07:54 PM	#26 (permalink)
Ekka Eric Frei Administrator - Brisbane L5 (Dip) Hort Cert III Arb + some Join Date: Jan 2007 Location: Brisbane Posts: 6,943	Re: Speedlining Dont forget guys, a tensioned speed line can exert up to 5x the weight of the cut piece at the ends/termination knots. So dumping onto them really compounds the issue. __________________ Remember to use the "search" function, if you have answers/questions post them so everyone can benefit. Free Tree and Green Industry Link Directory Qualified Brisbane Tree Lopping \| Stump Grinding and Stump Removal Brisbane Brisbane Tree Care, Consultations, Developer, Tree and Arborist Reports Forum Sponsors

1st November 2007, 10:56 AM	#27 (permalink)
jim1nz Mature tree Join Date: Jan 2007 Location: Tauranga, New Zealand Posts: 296	Re: Speedlining Tention with a 3 or 5:1 works well, with a GCRS or vehicle but this is the LAST option as you can measure the tension being applied accurately. Remember the side loading forces in speedlining are something to know and respect. Speedlining is a controlled lowering system, it shouldnt be abused by cutting out pieces streight onto the main line. As Ekka says 5x yea well thats the thing, it could be 15x who knows, sure you can do testing but every single rig is different. Just stay well within the gear, the trees capabilitys. __________________ SPEED ALWAYS FOLLOWS TECHNIQUE

1st November 2007, 01:19 PM	#28 (permalink)
Ekka Eric Frei Administrator - Brisbane L5 (Dip) Hort Cert III Arb + some Join Date: Jan 2007 Location: Brisbane Posts: 6,943	Re: Speedlining And dont forget there is always vertical speed line if you need to block down chunks on a hill etc ... stops runaways. Vertical speed line, a nice trick __________________ Remember to use the "search" function, if you have answers/questions post them so everyone can benefit. Free Tree and Green Industry Link Directory Qualified Brisbane Tree Lopping \| Stump Grinding and Stump Removal Brisbane Brisbane Tree Care, Consultations, Developer, Tree and Arborist Reports Forum Sponsors

20th November 2007, 07:48 PM	#29 (permalink)
DoG Sappling Join Date: Feb 2007 Location: SE, USA Posts: 15	Re: Speedlining Thanks for your comments Ekka and Jim1NZ. When rigging, it's about angles, forces, proper cut and direction of fall. I gave it much thought before doing the speedline because I did not want to damage my shed or my next door neightbors fence, who happens to be my boss. I set the speedline at about 55 ft. and tied the end to a nearby tree about 12 feet away. The approximate angle of the speedline was 60-70 degrees. What do you figure the added weight was. Limb was about 20-25 feet long and around 200-300 pounds. Your experience and knowledge are most welcome.

20th November 2007, 07:53 PM	#30 (permalink)
Ekka Eric Frei Administrator - Brisbane L5 (Dip) Hort Cert III Arb + some Join Date: Jan 2007 Location: Brisbane Posts: 6,943	Re: Speedlining That's a good incline angle, I take it 90 degrees is straight down and 60 degrees is between straight down and 45 degrees. You weren't bombing the pieces onto it were you? __________________ Remember to use the "search" function, if you have answers/questions post them so everyone can benefit. Free Tree and Green Industry Link Directory Qualified Brisbane Tree Lopping \| Stump Grinding and Stump Removal Brisbane Brisbane Tree Care, Consultations, Developer, Tree and Arborist Reports Forum Sponsors

21st November 2007, 01:29 PM	#31 (permalink)
DoG Sappling Join Date: Feb 2007 Location: SE, USA Posts: 15	Re: Speedlining Yes, you have the picture right. The end of the speedline was tied into a tree to be taken down at about 20-25 feet. So alot of the force of the falling limb were taken on the ground about 6 feet from the tree. What do you estimate the weight on the half inch rope was at it's most stressed point, using 200 pounds for the weight of the limb? My thoughts were that it was going to take the most stress on the rope within the first 3-4 feet. I think Jim1's comment was spot on. Each situation is different and if you have a basic knowledge of physics, you'll do OK most of the time.

22nd November 2007, 07:10 PM	#32 (permalink)
Ekka Eric Frei Administrator - Brisbane L5 (Dip) Hort Cert III Arb + some Join Date: Jan 2007 Location: Brisbane Posts: 6,943	Re: Speedlining I guess anywhere between 200lbs and 1000lbs. __________________ Remember to use the "search" function, if you have answers/questions post them so everyone can benefit. Free Tree and Green Industry Link Directory Qualified Brisbane Tree Lopping \| Stump Grinding and Stump Removal Brisbane Brisbane Tree Care, Consultations, Developer, Tree and Arborist Reports Forum Sponsors

22nd November 2007, 07:15 PM	#33 (permalink)
newguy18 Part of the Furniture Join Date: Jun 2007 Location: Live Oak Florida home of the crapiest trees you will ever see. Posts: 2,683	Re: Speedlining Since I've never had too use a speedline am I missing out on something?What all is needed to set one up?I'm looking to expand my tool box anyway. __________________ Have your say join us today. http://www.youtube.com/watch?v=Xzkd_m4ivmc http://www.youtube.com/watch?v=Xzfzb...eature=related http://www.youtube.com/watch?v=x-OqK...eature=related

22nd November 2007, 07:22 PM	#34 (permalink)
Therrin The Tree World Bandit Join Date: Oct 2007 Location: Lancaster, Ca Posts: 1,273	Re: Speedlining I've never used speedlining either. (must be one of those niffty things you guys learn in arb school). I can see some immediate applications for it though, was already thinking of using it on a new site I'm workin on. I think I understand the setup, but if someone's willing to be patient with Newguy and I, I'm sure we'd appreciate it =) __________________ Ken Fessia I.T.S.A. Tree Service (661) 916-4703

22nd November 2007, 07:25 PM	#35 (permalink)
newguy18 Part of the Furniture Join Date: Jun 2007 Location: Live Oak Florida home of the crapiest trees you will ever see. Posts: 2,683	Re: Speedlining Arb school?i taught myself dude strictly hands on t and e. __________________ Have your say join us today. http://www.youtube.com/watch?v=Xzkd_m4ivmc http://www.youtube.com/watch?v=Xzfzb...eature=related http://www.youtube.com/watch?v=x-OqK...eature=related

22nd November 2007, 07:32 PM	#36 (permalink)
Therrin The Tree World Bandit Join Date: Oct 2007 Location: Lancaster, Ca Posts: 1,273	Re: Speedlining You apparently missed my meaning... I was grouping you and I in the same boat (ie. "I taught myself dude") The crack was aimed at those who HAVE official arb training __________________ Ken Fessia I.T.S.A. Tree Service (661) 916-4703

22nd November 2007, 07:37 PM	#37 (permalink)
newguy18 Part of the Furniture Join Date: Jun 2007 Location: Live Oak Florida home of the crapiest trees you will ever see. Posts: 2,683	Re: Speedlining Oh i see I figure a good double braid block and tackle for tensioning and a portawrap. __________________ Have your say join us today. http://www.youtube.com/watch?v=Xzkd_m4ivmc http://www.youtube.com/watch?v=Xzfzb...eature=related http://www.youtube.com/watch?v=x-OqK...eature=related

22nd November 2007, 07:40 PM	#38 (permalink)
Therrin The Tree World Bandit Join Date: Oct 2007 Location: Lancaster, Ca Posts: 1,273	Re: Speedlining Wow, you're pretty stodgy. I might throw a pulley in there as well __________________ Ken Fessia I.T.S.A. Tree Service (661) 916-4703

22nd November 2007, 07:42 PM	#39 (permalink)
newguy18 Part of the Furniture Join Date: Jun 2007 Location: Live Oak Florida home of the crapiest trees you will ever see. Posts: 2,683	Re: Speedlining slings and snaps spliced into them just girth hitch and away they go.LOOK OUT BELOW. __________________ Have your say join us today. http://www.youtube.com/watch?v=Xzkd_m4ivmc http://www.youtube.com/watch?v=Xzfzb...eature=related http://www.youtube.com/watch?v=x-OqK...eature=related

22nd November 2007, 07:52 PM	#40 (permalink)
Therrin The Tree World Bandit Join Date: Oct 2007 Location: Lancaster, Ca Posts: 1,273	Re: Speedlining I can see we've been watching the same video ;-) Guess we didn't need to ask afterall. __________________ Ken Fessia I.T.S.A. Tree Service (661) 916-4703

22nd November 2007, 07:55 PM	#41 (permalink)
newguy18 Part of the Furniture Join Date: Jun 2007 Location: Live Oak Florida home of the crapiest trees you will ever see. Posts: 2,683	Re: Speedlining vertical speedline? __________________ Have your say join us today. http://www.youtube.com/watch?v=Xzkd_m4ivmc http://www.youtube.com/watch?v=Xzfzb...eature=related http://www.youtube.com/watch?v=x-OqK...eature=related

22nd November 2007, 07:56 PM	#42 (permalink)
Therrin The Tree World Bandit Join Date: Oct 2007 Location: Lancaster, Ca Posts: 1,273	Re: Speedlining vsl.wmv the same =) __________________ Ken Fessia I.T.S.A. Tree Service (661) 916-4703

22nd November 2007, 07:59 PM	#43 (permalink)
newguy18 Part of the Furniture Join Date: Jun 2007 Location: Live Oak Florida home of the crapiest trees you will ever see. Posts: 2,683