![Thanks](https://www.renovateforums.com.au/dbtech/thanks/images/thanks.png)
![Likes](https://www.renovateforums.com.au/dbtech/thanks/images/likes.png)
![Needs Pictures](https://www.woodworkforums.com/images/smilies/happy/photo4.gif)
![Picture(s) thanks](https://www.ubeaut.biz/wave.gif)
Results 16 to 19 of 19
-
15th July 2006, 11:45 AM #16
Originally Posted by Zed
GBS = 800kg x 10 = 8000kg (8 tmetric tonnes)
inanswer toyu your question midge - the rigger on site (not the dogman) is responsible for the safety of the job. they usually OVERSPECIFY a load when calc'ing the cable size thus the literally dont need to do mental arithmatic - Eg a 50 tonne crane usually has 24mm cable ((24x24)x8 x10) = 46 tonnes!!!! when you multiply the added mechanical advantage of a block and takle arrangement with say 5 runs of cable around the pullys you multiply it by a further 5 cables (A whopping 230 tonnes!!!!)... thats the REAL reason they dont do maths!!!!! OVER engineering!Zed
-
15th July 2006, 02:44 PM #17
Yeah but what happens to that massive 43 tonnes when you put a 2 tonne sling on the hook, and then wrap it around the load.
The overall SWL is the lowest SWL of any equipment used.
Cheers, Jack."There is no dark side of the moon really. Matter of fact it's all dark."
-
15th July 2006, 05:40 PM #18
Originally Posted by bitingmidge
Oddly enough, during my time as a 'dozer driver with the SEC I ended up being ticketed as a doggy, a 'chaser and a rigger. (Stoopid multi-skilling!) Now I can't remember a single damned formula... but I can still splice a mean monkey's-fist. Go figure!
- Andy Mc
-
15th July 2006, 06:41 PM #19
Similar Threads
-
Two-part Question
By Rodgera in forum JOKESReplies: 1Last Post: 12th May 2006, 07:17 PM -
what a great couple of days
By doug the slug in forum HAVE YOUR SAYReplies: 5Last Post: 5th December 2005, 10:51 PM -
Life `s Great Question `s
By MidwayBlonde4 in forum JOKESReplies: 0Last Post: 2nd June 2005, 09:12 PM -
a chimp
By Eastie in forum JOKESReplies: 0Last Post: 29th November 2002, 03:11 PM