The Phillips model seems to be the most common...
Command car > Done
Appliances > Soon (1 AED, several O2's)
heres a question, to get other Point of views.
Would an AED be more worthwhile to be placed on a 34 or 14.
Theory is, that a 14 is able to become a Ad-hoc command vehicle so yes it seems sensible.
Meanwhile 34's are out of the fireground having to do a heap more work in between Rest (refill) breaks.
Correct me if I am wrong, but if it is a multi-appliance incident that requires a command vehicle around, would you not have first-aid facilities already at the base for everyone (eg eye wash, smoke affected, exhaustion, small wounds, etc)?
At least the base would be easy access via sealed roads for SAAS (thus quick response) & multiple people around to assist.
But out at the fire front, you would have a longer delay in the AED & O2 getting to the casualty. Also less people to assist the casuality & a more dangerous environment (incl dust, dirt, smoke, heat, etc). Not only for fellow crew, but also if you find a casualty on the fire ground.
If so, personally I would put the equipment on the 34. They will be more isolated when working & the bonus is that the equipment is at site for a less than 3 appliance incident, when the command car is not around. That is if you can fit the extra equipment in the truck.
If you are going to transport the equipment via a command car to the site, I would have thought it would arrive too late to be useful.
If the 34 did the transport, it will have extra protection equipment for the casualty in the fireground environment when compared to a command car.
Just my thoughts.