As a preamble, IMHO TDI course requirements are generally much more sensible than certain 'other' agencies.
But one of the bits in the Decompression Procedures class has me scratching my head:
Why-Oh-why?
A lift bag is a crappy SMB, and a SMB is a crappy lift bag. What purpose is the lift bag supposed to serve?
TIA
But one of the bits in the Decompression Procedures class has me scratching my head:
Why-Oh-why?
8. Ascent reel with lift bag /surface marker buoy
a. Adequate for maximum planned depth
b. Minimum of 12 kg / 25 lb lift bag
A lift bag is a crappy SMB, and a SMB is a crappy lift bag. What purpose is the lift bag supposed to serve?
TIA