2K6 Luna

2K6 Luna
2P16 TEL with 3R9 missile
Type	Artillery rocket system
Place of origin	Soviet Union
Service history
In service	1960–1982 (USSR)
Production history
Designer	NII-1 and TsNII-58
Produced	1960–1964
No. built	432 SPU 2P16
Variants	3R10 (nuclear) (FROG-5), 3R9 (HE) (FROG-3)
Specifications
Crew	5
Maximum firing range	45 km (28 mi) (3R9)
Warhead	High explosive, nuclear
Engine	RDTT 3Zh6
Guidance system	Ballistic
Launch platform	2P16 (PT-76-based)

The 2K6 Luna (Russian: Луна; English: moon) is a Soviet short-range ballistic missile complex. Luna rockets are solid-fuel, unguided and spin-stabilized. "2K6" is its GRAU designation. Its NATO reporting names are FROG-3 (with 3R9 missile) and FROG-5 (with 3R10 missile). From 1965, the 2K6 Luna was replaced by the far more successful 9K52 Luna-M, which was known in the West as the FROG-7.

The Luna system was developed in NII-1 from 1953, under the supervision of N. P. Mazurov. Luna followed the earlier designs 2K1 Mars and 2K4 Filin. While NII-1 was responsible for the rocket, the launch and transporter-loader vehicles were designed by TsNII-58. The initial system name was S-125A "Pion". In 1957 the prototypes of the launch vehicle (SPU S-123A on Ob'yekt 160 chassis), the transloader (TZM S-124A on Ob'yekt 161 chassis) and the 3R5 rocket were ready for evaluations. These were carried out in 1958 in Kapustin Yar and in 1959 in the Transbaikal Military District. As a result of these evaluations, it was decided to abandon the TZM, to improve the SPU and to redesign the rocket. This led to the development of the 3R9 and 3R10 rockets. The decision to start series production was taken on 29 December 1959. The first 5 systems were ready in January 1960 after which the state acceptance trials were carried out until March of that same year. In 1960 the Luna system entered service with the Soviet Army where it remained until 1982. From 1960 till 1964, a total of 432 SPU 2P16s was produced. In the first year alone, 80 launch vehicles and 365 rockets were finished.

The missile complex consisted of

There have been a couple of variants of the launch vehicle, for example the 2P21 a.k.a. Br-226-II on ZiL-134 8x8 truck, but these never entered service.

The FROG-6 is, according to Western sources the NATO designator for the truck-based training system PV-65. Russian sources however claim that this system is the prototype of the Br-226-I launch vehicle on KrAZ-214.