AJS-37 ViggenDCS WORLD Startup Checklist · 97 steps

AJS-37 Viggen

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AJS-37 Viggen
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FighterCold War

AIRCRAFT BRIEF

The Saab AJS-37 Viggen (Thunderbolt) is one of the most impressive aircraft of the Cold War era - a Swedish all-weather multi-role combat aircraft designed to operate from dispersed road bases across Sweden. First flying in 1967 and entering service in 1971, it featured a distinctive canard-delta configuration, a thrust reverser for short-field landing, and an advanced digital computer for its era. The AJS-37 is an upgraded attack/reconnaissance/anti-shipping variant that remained in service until 2005.

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Startup Walkthrough

SPECIFICATIONS

manufacturerSaab AB
first Flight1967
roleMulti-role attack / reconnaissance / anti-shipping
crew1 pilot
engines1x Volvo RM8B (28,110 lbf with AB)
max Speed2,231 km/h (Mach 2.1)
range2,000 km (1,080 nmi)
ceiling60,000 ft
weight20,500 kg (MTOW)
PHS 1 — Pre-Flight Planning8 steps
01Mission BriefNOTE: Review attack profile, target coordinates, road-base ops plan, and threat environment.REVIEWED
02Weather BriefingNOTE: Check winds, ceiling, icing. Viggen can operate in severe conditions.REVIEWED
03NOTAMs / AirspaceREVIEWED
04Fuel PlanningNOTE: Internal fuel ~6,180 kg. Afterburner burns fuel rapidly - plan conservatively.SET
05WeaponsNOTE: RB-04, RB-15, RB-75, Akan gun, rockets per mission type.VERIFIED
06Target Data / KV (cartridge)NOTE: Navigation and target data loaded via cassette cartridge (KV) system.LOADED
07Radio FrequenciesSET
08Road Base / AlternateNOTE: Viggen is designed for dispersed road base operations - know your recovery strip.IDENTIFIED
PHS 2 — Cockpit Preparation4 steps
01Seat HarnessFASTENED TIGHT
02Oxygen SystemON - CHECK FLOW AND PRESSURE
03CanopyCLOSED AND LOCKED
04Ejection Seat Safety PinsREMOVED - SEAT ARMED
PHS 3 — Electrical Power4 steps
01Battery SwitchON
02Ground PowerCONNECT IF AVAILABLE
03Avionics PowerON
04InstrumentsPOWER ON - CHECK INDICATORS
PHS 4 — Navigation System Initialization5 steps
01Central Computer (CK37)NOTE: CK37 digital computer powers up and self-tests.ON
02KV CartridgeNOTE: Navigation cartridge contains mission waypoints and target data.INSERTED AND LOADED
03Datalink SystemON IF EQUIPPED
04TILS (approach aid)SET FREQUENCY
05AltimeterSET QNH
PHS 5 — Engine Start10 steps
01Engine Start ProcedureNOTE: Viggen uses Volvo RM8B afterburning turbofan. Self-contained start.NORMAL START - VOLVO RM8B JET ENGINE
02Fuel SystemMAIN FUEL COCK OPEN
03Engine Start SwitchPOSITION 1 - MOTORING
04N1 RisingN1 ABOVE 15-20%
05Engine Start SwitchPOSITION 2 - FUEL ON
06Light-offEGT RISING
07EGT During StartWARNING: Hot start if EGT peaks above limit - cut fuel immediately.< 710 C
08Engine Idle RPM65-68%
09GeneratorONLINE
10HydraulicsPRESSURE NORMAL
PHS 6 — Post-Start / Avionics7 steps
01HUD / HDDON - BIT COMPLETE
02Radar (PS-37/A)NOTE: 3 min warm-up before operational use.WARM UP AND STANDBY
03IFFSET CODES
04Radio (FR28)SET FREQUENCIES
05Navigation SystemNOTE: Verify CK37 shows correct waypoints from KV cartridge.CONFIRM WAYPOINTS LOADED
06Weapons SystemCHECK STATIONS ON DI (Display Indicator)
07CountermeasuresBG2M (BOL chaff/flare) LOADED
PHS 7 — Before Taxi6 steps
01Flight ControlsFULL TRAVEL - FREE AND CORRECT
02Canard FlapsAUTO POSITION
03Engine ParametersN2, EGT, HYDRAULICS IN LIMITS
04Navigation SystemALIGNED AND READY
05Fuel QuantityCONFIRMED
06Parking BrakeSET
PHS 8 — Taxi4 steps
01Parking BrakeRELEASE
02ThrottleADVANCE SMOOTHLY
03BrakesCHECK
04Taxi Speed< 20 KTS
PHS 9 — Before Takeoff5 steps
01Flight ControlsFREE AND CORRECT
02Engine Run-upCHECK AT MIL - INSTRUMENTS IN LIMITS
03IFFON - CONFIRM CODES
04Warning LightsNONE ILLUMINATED
05AutopilotOFF FOR TAKEOFF
PHS 10 — Takeoff7 steps
01Parking BrakeRELEASE
02ThrottleFULL MIL THEN AFTERBURNER
03AfterburnerSTAGE 1-3 CONFIRMED LIGHT-OFF
04Rotate Speed~250-270 KM/H (weight dep.)
05Rotate8-12 DEG NOSE UP
06Positive ClimbGEAR UP
07STOL CapabilityMINIMUM FIELD ROLL ~400-500 M WITH AB
PHS 11 — After Takeoff / Climb4 steps
01GearUP AND LOCKED
02AfterburnerREDUCE WHEN SAFE ALTITUDE REACHED
03Climb Speed600-800 KM/H IAS
04NavigationWAYPOINT 1 SELECTED - CK37 ACTIVE
PHS 12 — Cruise / Ingress5 steps
01Cruise Speed800-900 KM/H LOW LEVEL / M 0.85+ HIGH
02Ingress ProfileLOW LEVEL AS BRIEFED
03Fuel StateMONITOR - AB BURNS FAST
04RadarAS REQUIRED FOR ATTACK
05CountermeasuresREADY
PHS 13 — Attack5 steps
01Weapon SystemARMED AND SELECTED
02Master ArmON
03Attack WaypointSELECTED ON CK37
04Attack RunEXECUTE PER ATTACK MODE SELECTED
05EgressBREAK IMMEDIATELY AFTER RELEASE
PHS 14 — Descent / Approach4 steps
01TILSRECEIVING - HOMING TO RECOVERY STRIP
02AltimeterSET QNH
03WeaponsSAFE
04SpeedREDUCE TO 500-600 KM/H APPROACH
PHS 15 — Landing (STOL / Road Base)8 steps
01GearCAUTION: Gear max speed 400 km/h.DOWN - 3 GREEN
02Approach Speed~280-320 KM/H (weight dep.)
03Autopilot Approach ModeACTIVE (TILS approach)
04Thrust ReverserNOTE: Viggen has a thrust reverser for short field stopping.READY FOR DEPLOYMENT
05TouchdownFIRM - MAINS FIRST
06Thrust Reverser at TouchdownDEPLOY - FULL REVERSE
07Throttle During ReverseMAINTAIN UNTIL BELOW 150 KM/H
08BrakesAPPLY TO STOP
PHS 16 — After Landing3 steps
01Thrust ReverserSTOW AFTER STOP
02WeaponsSAFE - CONFIRMED
03IFFSTANDBY
PHS 17 — Shutdown8 steps
01Parking BrakeSET
02ThrottleIDLE - 2 MIN COOLING
03AvionicsOFF
04Fuel CockCLOSE
05ThrottleCUTOFF
06Electrical SystemsOFF
07BatteryOFF
08CanopyOPEN