These are on a special (and technically illegal) 19 ton chassis. Features include a five person cage and built in 3000 LPM monitor with integral waterway. Like BSPP's other aerials - over sixty in number - they do not have their own pump.
BSPP does provide mutual assistance all over France, but I guess they are okay with these aerials because they are very unlikely to end up going beyond the borders - where EU regulations limit two axle trucks to 18 tons.
As the BSPP is a brigade of the French army engineering corps, it occurred to me that their vehicles might be exempt from civilian weight restrictions in any case.
Added by Rob Johnson on 25 July 2021.