638th Guards Missile Regiment
638-й гвардейский ракетный полк
Military Unit: 25585
Activated 8.46 in Bad Berka, East Germany, as the 2nd Launch Battalion of the 22nd Brigade for Special Use RVGK.
8.47 transferred to Kapustin Yar, Astrakhan Oblast.
10.52 transferred to Medved, Novgorod Oblast.
3.53 renamed 638th independent Engineer Battalion RVGK, now under the 72nd Engineer Brigade RVGK.
12.58 transferred to Lychen, East Germany, attached to the 72nd Engineer Brigade RVGK.
The battalion went on alert duty 1.5.59 with four R-5M (SS-3) pads.
The battalion stood down 8.59, and was transferred to Volkovysk, Grodno Oblast - the R-5M missiles were transferred to the 97th Engineer Regiment at Gvardeysk, Kaliningrad Oblast.
September 1959 renamed 638th Engineer Regiment RVGK, now attached to the 12th Engineer Brigade RVGK, and from 1.7.60 the 31st Guards Missile Division.
15.4.61 regimental HQ transferred to Slonim, Grodno Oblast.
The regiment consisted of two battalions with each 4 R-12 (SS-4) pads - both went to alert duty 15.5.60 (eight R-12 pads).
The battalions stood down 10.4.80, and the regiment was transferred to the 49th Guards Missile Division during the same month, and began conversion to the RSD-10 Pioner (SS-20) missile.
The regiment went on alert duty with 9 RSD-10 Pioner-K (15P645K) (SS-20) missiles 25.5.81.
The regiment stood down 1990, and was disbanded shortly thereafter (1990).
US designation: Slonim MRBM complex (Byten launch sites 1 and 2). Type I (pad) sites.
Byten launch site 1 (52 52 11N, 25 21 32E):
Byten launch site 2 (52 55 38N, 25 21 51E):
Two alternative fixed field sites for the pad launchers, were set up at Byten (52 54 08N, 25 21 47E) and Gavinovichi (53 01 30N, 25 38 30E), but both had become inactive by 1967.
Byten launch site 2 (1981-1990, RSD-10 missiles) (52 55 38N, 25 21 51E):
Lychen launch site 1 (1959) (53 10 30N, 13 16 58E):