he does seem to like increasing the bloated defense budget for no reason, so idk.
Maybe because US intelligence told him Russia is testing Nuke Powered Rockets and today Putin came out and said of course they are.
Basically, its an unshielded nuclear reactor in critical condition, which generates an incredible amount of heat (and fallout). Once pushed up to speed using a rocket booster, the air passing through the ramjet (and past the unshielded reactor) becomes superheated from both compression and the reactor, which produces thrust. Lots of it.
And simple enough (when they don't blow up as recently occurred) and will next be used to power the words most advanced fighter jet ever imagined.
F-22 "Each aircraft requires a three-week packaged maintenance plan (PMP) every 300 flight hours" AND
F-22s were available for missions 63% of the time on average in 2015
Oh and as for Stealth? Once was but not at all anymore.
Obviously they are camouflaged stealth jets. They are there alright, you just can't see them.