WHolography
W7.62×25mm Tokarev
W9×18mm Makarov
W1801 series CPU
WAbalakov thread
WAerobatics
WAerosani
WAerowagon
WAffine scaling
WAir ioniser
WAK-630
WAndrogynous Peripheral Attach System
WANS synthesizer
WAnthrax vaccines
WAPS underwater rifle
WArktika-class icebreaker
WAVL tree
WBARS apparatus
WBerkovich tip
WBlok D
WBlok E
WBN-350 reactor
WBN-600 reactor
WBN-1200 reactor
WBuran (spacecraft)
WButeyko method
WCardiopulmonary bypass
WCargo spacecraft
WChapayev (game)
WCHAYKA
WChildren's railway
WCrystal radio
WDeep column station
WDegtyaryov machine gun
WDelta-class submarine
WDetonation nanodiamond
WDrozd
WElbrus (computer)
WElectrically powered spacecraft propulsion
WElectron cooling
WER200
WFialka
WFractional Orbital Bombardment System
WGLONASS
WGramicidin S
WGravity assist
WGrid fin
WGround-effect vehicle
WGyrotron
WHovercraft tank
WHyperbaric welding
WHypergolic propellant
WIlizarov apparatus
WIntercontinental ballistic missile
WKalashnikov rifle
WKatyusha rocket launcher
WKirlian photography
WKirza
WKleemenko cycle
WKontakt-5
WLander (spacecraft)
WLaser
WLatrepirdine
WMafia (party game)
WMaksutov telescope
WKleemenko cycle
WMeldonium
WMil V-12
WMilitary robot
WMinsk family of computers
WMIR (computer)
WMissile boat
WMolniya (satellite)
WOxygen cocktail
WPlatform screen doors
WPostal code
WPPS submachine gun
WPressure suit
WProtei-5 Russian diver propulsion vehicle
WProton (rocket family)
WR-7 (rocket family)
WR-7 Semyorka
WRadial keratotomy
WRadio-frequency quadrupole
WRadiosonde
WRATAN-600
WRD-0120
WRD-0146
WRD-170
WReactive armour
WReentry capsule
WReflectron
WRocket-propelled grenade
WRover (space exploration)
WRT-23 Molodets
WRT-64
WRT-70
WSA3 coupler
WHexagonal chess
WSoyuz (rocket family)
WSpace food
WSpace suit
WSpring-loaded camming device
WSputnik 1
WSputnik 2
WAnti-submarine missile
WSupersonic transport
WSynchrophasotron
WT-15 (reactor)
WTeletank
WTetris
WTokamak
WTrimeperidine
WTsar Bomba
WTupolev A-3 Aerosledge
WTyphoon-class submarine
WUral (computer)
WVertical launching system
WVilnius BASIC
WVishnevsky liniment
WVR (nerve agent)
WVVER
WWinged tank