Su-15 Avionics - Orel and Taifun

[overscan (PaulMM)]

Some nice screencaps of Su-15's Orel-A radar.




http://www.secretprojects.co.uk/Orel.avi

 

[Flashback]

RP-15 Oryol-58D

 

[overscan (PaulMM)]

Taifun / RP-26
NATO "Twin Scan"
OKB: Tikhomirov NIIP
Chief designer: F F Volkov

RP-26 Taifun
initial version, fitted to Su-15T. Proved very troublesome, the experimental units constructed by the developer (NIIP) being rather poor. The initial production sets, produced by Leninetz who built the series Smerch-A, proved rather better, and were used to finish testing. Developed for the Su-15TM updated interceptor, the Taifun was derived from the Smerch-A radar of the MiG-25P but smaller with slightly inferior performance.

RP-26M Taifun-M definitive version. Initial conical radome produced undesirable interference, reducing range, leading to a new ogival radome. Used in conjunction with the R-98 AAM.
Search range, in free space: 60-70 km (bomber) 45-55 km (fighter)
Tracking range, in free space: 40-45km (bomber) 35-40km (fighter)
Search range at low altitudes: 10-12km (bomber) 6-10km (fighter)
Tracking range at low altitudes: 7-10km (bomber) 5-10km (fighter)

Taifun-M2 final production version, introduced after Belenko's defection which compromised the Smerch-A radar which Taifun was based on. While the MiG-25 got a new radar, the Su-15 simply got an update.

 

[overscan (PaulMM)]

Orel/Oryol RP-11
NATO "Skip Spin"
OKB: Phazotron NIIR
Chief designer: G M Kunyavsky

Basic air intercept radar, using a parabolic antenna scanning ±30° in azimuth. Designed by a ex-NIIP team at Phazotron led by G M Kunyavsky, and based on the team's earlier Sokol design for the Yak-25M/27K but shrunk somewhat in size and simplified for operation by the pilot of a single seat fighter without a navigator/WSO. Improved performance compared to OKB-1's TsD-30.

RP-11 Orel development started in 1957 for Su-11, also fitted to Yak-28P.
Range 25-30km head-on against a fighter target
10-15km tail-on against a fighter target
30-35km head-on against a Tu-16 target
15-18km tail-on against a Tu-16 target

RP-15M Orel-D58M updated version fitted to later production Su-15 models

RP-15 Orel-D58 improved version developed for the Su-15.

 

[bigron427]

Glad to see that it touches on the Su-11 too, which I am writing a fictional story around. I would love to know details of the scope presentation, but appears to be rather similar to that of American Hughes fire control systems with the circle and steering dot. I assume that the horizontal markers on the right are range markers?

You guys rock!

Cheers!

 

[overscan (PaulMM)]

RP-15 Orel-D58 was also designated Izdeliye 303D

 

[henshao]

Allegedly the Orel-D had some kind of rudimentary lookdown tracking capability called "OLPS (Odno-Lutchevoy Prostranstvennoy Selekcii - Single Beam Space Selection )"

 

[overscan (PaulMM)]

That's just going to be a mode where you filter out all targets further away than the ground distance. This allows you to detect targets below you at short distances so long as the plane isn't flying very low.