Wat Dis?

[George K]

[Mik]

Exhaust or intake of some sort. Possibly on a dam or a boat?

[George K]

The uncropped version:

Context.

The North American Aviation XB-70 Valkyrie was the prototype version of the planned B-70 nuclear-armed, deep-penetration supersonic strategic bomber for the United States Air Force Strategic Air Command. Designed in the late 1950s by North American Aviation (NAA), the six-engined Valkyrie was capable of cruising for thousands of miles at Mach 3+ while flying at 70,000 feet (21,000 m).

[Mik]

Cool plane. I suspect this was the only one built? Cool name too.

[George K]

There were two prototypes built.

XB-70A
Prototype of B-70. Two were built.

• AV-1, NAA Model Number NA-278, USAF S/N 62-0001, completed 83 flights spanning 160 hours and 16 minutes.[104][105]
• AV-2, NAA Model Number NA-278, USAF S/N 62-0207, flew 46 times over 92 hours and 22 minutes, before it crashed in June 1966.

[Axtremus]

@George-K Any information on their total life cycle costs?
Might be interesting to see the figure for "$ per hour flown".

[Copper]

I recognized those engines right away.

That plane is beautiful, I have seen it at the Air Force Museum at Wright Pat