The Next Generation of Speed
I was always fascinated about reading the stories of the SR-71 Blackbird. It was THE coolest aircraft to talk about. Made from titanium alloy plates, it leaked and really didn't look like a plane. When it got to speed, the fuselage sealed up and it could outrun anything in the air. including its armaments. It wasn't viable as a fighter, so the US Air Force made it a spy plane.
I saw one of the original test planes, the YF-12A at the US Air Force Museum in Dayton, Ohio. It was really cool and they now have a decommissioned SR-71 in the Cold War exhibit. If you ever get a chance, be sure to stop by and look at all the displays, including that one.
Now, the next generation of high speed aircraft is coming. The SR-72 which is a concept aircraft from Lockheed Martin. Here is a link to their information. It uses turbine based combined propulsion. It easier terms, its a turbine jet engine combined with a ramjet. With the new ramjet that was tested on the HTV-2 hypersonic test vehicle, this new aircraft could go from near standstill to MACH 6 quite quickly. Just hope the pilot can take it.
Anyway, here is the information: