I24- The Vampire Seat would have been a late Mk 2 or an early Mk 3 seat (depending on what mods/ type of Vampire you were in)
Vampire T11 (de Haviland)(FB5) - Mk1F, Mk 3B Seat
Vampire F6, FB51 -Mk 2FV Seat
Vampire T4 (de Haviland)- Mk 3B, 3BA, 4AV seat
The apron on the parachute extraction line aslo served to stop other stuff (such as the pilot) getting caught up in the line as it was thought that the apron would provide a wider barrier to the potential problem of entanglement.
Many seats - especially in two seat a/c have vectored thrust rocket packs -pilot goes port, nav goes starboard - again to stop both crew shaking hands mid ejection.
Some seats have a small thruster rocket on the headbox to give to offset thrust but most use larger nozzles on one side of the main rocket pack.
The trick is to make sure that the same rocket pack is not loaded onto both seats in the same a/c. The way this is done in Martin Baker installations is to colout the rocket packs on rear seats red instead of the "normal" white colour of rocket pack (RED= REAR) Dead simple!
As for women and ejection seat compatibility- historically it was thought that a seat giving sufficient thrust for a big hairy male pilot would give too much of a " boost" to a slighter built lady! (or a smaller male pilot) - but with seats now able to accommodate 98% percentile of fleigers a novel design feature was found that the rocket pack "senses" the opposition to its thrust and changes the thrust to give all users the same kick up the backside whatever they wheigh and therefore the seat is useable by many more types (and wheights) of pilot! (I hope that makes sense?
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