that is not a MA at all. it is simply two change of directions if even that. the only reason it is easier to lower him is because of the friction from wrapping the rungs. why waste the time to set this up when you could just set the ladder at the base of the window pull the firefighter out the window and take him down the ladder with one firefighter the good old firefighter 1 and 2 way. you had sufficient man power to execute it the way we ave been doing it successfully for years.
Just a warning: The MSA Airpack starps are not designed for that load. You typed to feed the rope underneath the straps. At 1:55 the interior firefighter clipped the caribeaner onto the void of the backplate. Either way, the straps are only riveted onto the backplate (no strength) and I can show you pictures of a backplate that failed at the caribeaner attachment point used in this video. If the backplate fails the firefighter will fall regardless of the waist strap submarine option.
that is not a MA at all. it is simply two change of directions if even that. the only reason it is easier to lower him is because of the friction from wrapping the rungs. why waste the time to set this up when you could just set the ladder at the base of the window pull the firefighter out the window and take him down the ladder with one firefighter the good old firefighter 1 and 2 way. you had sufficient man power to execute it the way we ave been doing it successfully for years.
palmerarecord 1 year ago
Just a warning: The MSA Airpack starps are not designed for that load. You typed to feed the rope underneath the straps. At 1:55 the interior firefighter clipped the caribeaner onto the void of the backplate. Either way, the straps are only riveted onto the backplate (no strength) and I can show you pictures of a backplate that failed at the caribeaner attachment point used in this video. If the backplate fails the firefighter will fall regardless of the waist strap submarine option.
FETC2007 1 year ago