On 21/02/2017 15:36, Tim Watts wrote:
On 21/02/17 15:30, Nick Maclaren wrote:

A tripod ladder is a bad idea, as they are a lot less stable than
a corresponding quadrupod one. We bought an industrial-grade one
from Mackays at 150 quid (versus 50 quid for the 'domestic') and
have not regretted it.


Regards,
Nick Maclaren.


Can you explain why tree surgeons almost always have a tripod ladder?

They have a very wide area of footing and 3 legs is inherently stable on
unplanar ground.

On recent edition of 24 hours in A&E, a tree surgeon arrived in
hospital after falling off a tripod ladder..It was shown in the
program. You can fall off any ladder if you overreach, or cut
something that sprngs back and pushes or pulls you, and/or
the ground is too soft or unstable.