Soviet hypersonic flying testbeds, 50s-60s

[flateric]

Found this stuff on TsAGI placard at MAKS

 

[sferrin]

From left to right: the first three look like they're designed for air launch while the last reminds me somewhat of X-17 (wonder if it served the same function). Interesting find.

 

[Vahe Demirjian]

The ER-3, ER-5, ER-8, and ER-10 were all experimental missiles designed to investigate hypersonic flight beyond Mach 3, and bit more info about these hypersonic tech demonstrators can be found at the following link:

Hypersonic vehicles

The history of the Rodnik satellite network by Anatoly Zak

www.russianspaceweb.com

It's unclear whether these vehicles remained at the mockup phase only or reached the hardware phase, given that the Lockheed X-7 and X-17 provided a volume of data on aerodynamics in the hypersonic flight regime.