The CT40 autocannon is in the process of being fitted to Warrior IFVs but the potential applications are much wider than that. The round is a compact telescoping round measuring just 255mm total in length yet it packs more kinetic energy than a 40mm L70 Bofors round, the cartridge of which is 365mm long on its own without including the projectile.
http://www.cta-international.com/en/ammunition-natures/gpr-pd-t
http://www.dtic.mil/ndia/2009gunmissile/7961leslie.pdf
Ammo comparison - CT40 GPR-PD-T vs L/70 HE
CT40 GPR-PD-T
http://www.cta-international.com/en/ammunition-natures/gpr-pd-t
L/70HE
http://www.mlmintl.com/40mml-70.pdf
40x255mm round.
APFSDS
HE
40mm L70 Bofors round on left.
Smaller 40x311mm L60 Bofors round pictured next to CT40 round.
The CT40 cannon itself is also lighter and more compact than existing 35 and 40mm designs, similar to the current 30mm Mk44/Bushmaster II cannon in fact.
The CT40 APFSDS round can penetrate anything up to and including a T-55.
In hindsight I would have done the following. Instead of developing the EF2000, I would have developed a stealth STOBAR-capable aircraft with EF-like performance (keeping the French on-board with the EF program). That might have taken an extra 5-10 years to build and would have cost more but it would have been:
a) Ready before the F-35; and
b) Salable.
I would have made 2 STOBAR carriers. To allow for bad weather carrier-ops I'd have then purchased maybe 20 F-35Bs, which would be funded by sales of the above aircraft.
Haha yeah, did some research. I'd heard of top down attack before but only in the Javelin sense. I.e. the missile still hits but from the top down. This downward penetrator effect is a new one on me in terms of ATGMs although CBU-97/105s have used a similar effect for a long time.
What warhead was in that? Because 5kg HE shouldn't be enough to defeat MBT armour without a direct hit and on some modern MBTs even with a direct hit it probably still won't work. Is it some kind of top down penetrator?
Aha yep, nice:
http://en.wikipedia.org/wiki/BGM-71_TOW