DCS WORLD · Attack

Su-25T Frogfoot Startup Checklist

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Su-25T FrogfootDCS WORLD · Startup Checklist · 172 steps · 18 phases
DATE PILOT TAIL
PHS 1 — Pre-Flight Planning8 steps
01Mission BriefREVIEWEDNOTE: Review mission type, target area, ROE, and threat environment. Su-25T specialises in anti-tank and precision CAS with Vikhr/Shkval system.
02Weather BriefingREVIEWEDNOTE: Check departure, target area, and recovery weather. Low-level operations require good visibility.
03NOTAMs / AirspaceREVIEWEDNOTE: Check restricted areas, FEBA position, and SAM threat rings.
04Fuel Planning - Bingo / JokerSETNOTE: Internal fuel ~3,600 kg. Low-level CAS burns significantly more. Plan bingo for RTB with reserve.
05Stores / LoadoutVERIFIEDNOTE: Confirm weapons per mission - Vikhr ATGMs require Shkval to be active. Verify chaff/flare count.
06Steerpoints / WaypointsPROGRAMMEDNOTE: Plan route to target area, IP, attack axis, and egress. Note target coordinates for Shkval slew if needed.
07Radio Frequencies / IFFSETNOTE: Set radio presets. Confirm IFF codes with controlling authority. FAC frequency if CAS tasked.
08Divert BasesIDENTIFIEDNOTE: Know nearest divert fields and frequencies. Su-25T has no radar - visual identification needed.
PHS 2 — Electrical4 steps
01Battery SwitchONNOTE: Master battery on - activates DC bus. Navigation system begins alignment on power.
02Cockpit LightingSET AS REQUIRED
03Warning / Caution PanelCHECK - NOTE ANY FAULTS
04Fuel QuantityCHECK - NOTE TOTALNOTE: Verify fuel load matches briefed quantity on fuel quantity indicator.
PHS 3 — INS / Navigation Alignment4 steps
01Navigation System (PNK)ALIGNINGNOTE: Turn on PNK navigation system. The inertial platform requires approximately 3 minutes stationary alignment.
02Navigation Mode SelectorINU MODENOTE: Set to INU alignment mode. Do not taxi until alignment is complete.
03Wait for AlignmentSTATIONARY - 3 MINCAUTION: Do not move the aircraft during INS alignment. Any movement degrades navigation accuracy.
04Navigation System StatusREADYNOTE: Alignment complete indicator - navigation system ready for taxi.
PHS 4 — Engine Start17 steps
01CanopyCLOSED AND LOCKEDCAUTION: Ensure canopy is fully latched before engine start.
02ThrottlesIDLECAUTION: Both throttles must be at idle before initiating start.
03Right Engine Start SwitchSTART (RAlt + Home)NOTE: Begin right engine start. Monitor RPM rise and EGT.
04Right Engine RPMRISING - 33%CAUTION: If RPM does not rise within 10 seconds, abort start and check for fault.
05Right Engine EGT During Start< 500 C BEFORE 33% RPMWARNING: Hot start if EGT exceeds limits before 33% RPM - move throttle to OFF immediately.
06Right Engine at 33% RPMADVANCE THROTTLE TO IDLE GATE
07Right Engine EGT at Idle440 C (40% RPM)NOTE: Normal idle EGT is approximately 440 degrees C at 40% RPM.
08Right Engine StatusSTABLE AT IDLENOTE: Allow engine to stabilise before starting left engine.
09Left Engine Start SwitchSTART (RCtrl + Home)NOTE: Begin left engine start.
10Left Engine RPMRISING - 33%
11Left Engine EGT During Start< 500 C BEFORE 33% RPMWARNING: Hot start - abort if EGT exceeds limits before 33% RPM.
12Left Engine at 33% RPMADVANCE THROTTLE TO IDLE GATE
13Left Engine EGT at Idle440 C (40% RPM)
14Both EnginesSTABLE AT IDLE
15Engine Parameters - BothRPM AND EGT IN LIMITSNOTE: Check both engines showing normal RPM and EGT within green arc.
16Hydraulic SystemsPRESSURE NORMALNOTE: Right engine drives hydraulics 1 (flight controls), left engine drives hydraulics 2 (gear, brakes).
17GeneratorsONLINE - BATTERY CHARGING
PHS 5 — Post-Start / Avionics15 steps
01HUDON - BRIGHTNESS SETNOTE: Adjust HUD brightness and contrast for ambient conditions.
02AltimeterSET QNH / QFENOTE: Set local altimeter setting.
03Navigation System ModeNAV MODENOTE: Switch PNK to navigation mode after alignment complete. Nav symbols appear on HUD.
04Shkval Electro-Optical SystemON - SELF-TESTNOTE: Shkval is the primary targeting system for Vikhr ATGMs and unguided weapons. Allow warm-up.
05Shkval TestPASSEDNOTE: Shkval system self-test should pass. Check electro-optical sensor slews correctly.
06Klen-PS Laser DesignatorONNOTE: Laser rangefinder and target designator - required for Vikhr missile guidance and range to target.
07Laser Status LampGREEN (SAFE)NOTE: Green lamp confirms Klen-PS is active. Laser fires only when weapons are hot and trigger is squeezed.
08ECM System (L-166S1)STANDBY - AS REQUIREDNOTE: IR jammer and chaff/flare system. Configure per threat environment briefing.
09SPO-15 RWRON - CHECKNOTE: Radar warning receiver. Confirm audio working and display active.
10Chaff / Flare SystemLOADED - MODE SETNOTE: Verify chaff and flare counts. Set appropriate program for mission threat level.
11IFF SystemSET CODESNOTE: Set IFF transponder modes and codes per ATO.
12Radio (R-862 / R-828)SET FREQUENCIESNOTE: Set primary and secondary radio frequencies. R-828 for ground forces/FAC comms.
13Master ArmOFF / SAFECAUTION: Keep weapons safe until arming area or over sea.
14Weapons Station DisplayVERIFY LOADSNOTE: Confirm weapon pylons show correct stores on weapons panel.
15GSh-30-2 GunCHECKED - 250 ROUNDS
PHS 6 — Before Taxi9 steps
01INS / NavigationALIGNMENT COMPLETENOTE: Confirm navigation system is fully aligned and in NAV mode before moving.
02Flight ControlsFULL TRAVEL - FREE AND CORRECTCAUTION: Full stick deflection in all axes - verify correct surface movement before taxiing.
03FlapsCHECK - RETRACTED
04Air BrakesCHECK - RETRACTED
05TrimSET FOR TAKEOFF
06SlatsCHECK - RETRACTED
07Engine ParametersBOTH ENGINES STABLE
08Navigation LightsON - STEADYNOTE: Steady nav lights for ground operations.
09Parking BrakeSET
PHS 7 — Taxi7 steps
01Parking BrakeRELEASE
02ThrottlesADVANCE TO ~50%NOTE: Su-25T requires significant thrust to start rolling due to weight.
03BrakesCHECK - APPLY AND RELEASENOTE: Test brakes immediately as aircraft begins rolling.
04Nosewheel SteeringACTIVE - CHECK RESPONSE
05Taxi Speed< 30 KM/HCAUTION: Keep slow on ramp - aircraft is heavy and braking distance is significant.
06InstrumentsCHECK DURING TAXINOTE: HUD heading should track turns - confirms INS is working correctly.
07Landing Gear LightsON - FAR FLASH
PHS 8 — Before Takeoff13 steps
01Ejection SeatARMEDWARNING: Confirm K-36D ejection seat is armed before takeoff.
02CanopyCLOSED AND LOCKED
03Oxygen SystemON - CHECK FLOW AND PRESSURE
04Flight ControlsFULL TRAVEL - FREE AND CORRECT
05FlapsTAKEOFF POSITIONNOTE: Set flaps to takeoff position. Reduces required runway length.
06Air BrakesRETRACTED
07TrimSET FOR TAKEOFF
08Engine ParametersBOTH ENGINES IN LIMITS
09Fuel QuantityCHECK AS BRIEFED
10Navigation LightsON - FLASHNOTE: Switch to flashing for flight operations.
11ECM / JammerAS REQUIRED
12Master ArmOFF
13Warning PanelCLEAR - NO ACTIVE WARNINGSCAUTION: Resolve any active caution/warning lights before committing to takeoff.
PHS 9 — Takeoff10 steps
01Lineup on RunwayCENTERLINE
02BrakesHOLD
03Throttles100% MILITARY POWERNOTE: Advance to full military power - Su-25T has no afterburner. Check both engines symmetrical.
04Engine ParametersCHECK SYMMETRICAL THRUST
05BrakesRELEASE
06AccelerationMONITOR AIRSPEED
07At ~160-180 km/h (light)EASE NOSEWHEEL OFFNOTE: Gently relieve nosewheel pressure at 160-180 km/h. Full rotation at 240-260 km/h.
08Rotate at 240-260 km/hROTATE 10-12 DEG NOSE UPNOTE: Rotate speed varies with weight. Heavy loads require ~280 km/h.
09Positive RateCONFIRMED
10Landing GearUP (above 10 m AGL)NOTE: Gear speed limit 400 km/h.
PHS 10 — After Takeoff / Climb7 steps
01Landing GearCONFIRM UP AND LOCKED
02FlapsRETRACT (above 150 m AGL, speed > 320-340 km/h)NOTE: Do not retract flaps until above 150 m and accelerating through 320+ km/h.
03Air BrakesRETRACTED
04Climb Speed500 KM/H IASNOTE: Maintain 500 km/h IAS for best climb performance.
05Engine ParametersCHECK - BOTH IN LIMITS
06Fuel StateCHECK
07NavigationCONFIRM ROUTE ON HUD
PHS 11 — Cruise / Transit7 steps
01AltitudeAT BRIEFED LEVEL
02Power Setting75-85% RPM / 700-750 KM/HNOTE: Reduce power for cruise efficiency. Low-level cruise use 500 km/h at 85-90% RPM.
03Fuel StateMONITOR - CHECK JOKER / BINGONOTE: High fuel burn at low level - monitor closely on long transits.
04NavigationMONITOR WAYPOINTS ON HUD
05SPO-15 RWRMONITOR FOR THREATS
06Engine ParametersBOTH ENGINES IN LIMITS
07ECMAS REQUIRED
PHS 12 — Fence-In (Combat Entry)9 steps
01Navigation LightsOFF
02Shkval SystemACTIVE - CHECK SLEWNOTE: Confirm Shkval electro-optical system is operational. Slew to verify movement.
03Klen-PS LaserARMED - SAFE UNTIL ATTACK
04Master ArmONCAUTION: Master arm only in the arming area or over water away from friendly forces.
05Weapon SelectionSELECT WEAPON TYPENOTE: Select appropriate weapon for mission - Vikhr ATGMs, rockets, bombs, or gun.
06ECM / IR JammerON - AS REQUIRED
07Chaff / FlarePROGRAM SELECTED
08Fuel StateJOKER CHECK
09SPO-15 RWRMONITOR ACTIVELY
PHS 13 — Attack / Weapons Employment9 steps
01Target AcquisitionIDENTIFY TARGETNOTE: Positive visual or Shkval identification required. Rules of engagement apply.
02Attack Mode SelectorA/G MODENOTE: Switch to air-to-ground mode (7 key in DCS).
03ShkvalSLEW TO TARGET - LOCKNOTE: Use Shkval sighting system to slew onto target and press Enter to lock. Green tracking box indicates lock.
04Attack Speed550-700 KM/HNOTE: Maintain attack speed in diving or level attack profile.
05Laser RangefinderACTIVE (on attack)NOTE: Klen-PS laser fires automatically during attack phase to provide range data for ballistics.
06Weapons ReleaseAT PIPPER / QUANTUMNOTE: Fire Vikhr at 8-6 km. Release bombs/rockets per weapon parameters.
07Jink / Break OffBREAK AWAY AFTER RELEASECAUTION: Break away from target immediately after weapon release. Low-level threats are significant.
08LaserOFF AFTER IMPACTNOTE: Turn off laser after confirmed impact to prevent overheating.
09Assess and Re-attackAS REQUIREDNOTE: If target not destroyed and fuel/weapons allow, set up for second pass.
PHS 14 — Fence-Out (Departing Combat)8 steps
01Master ArmSAFECAUTION: Safe weapons immediately upon departing target area.
02LaserOFF
03ECM / IR JammerOFF (if not needed)
04Navigation LightsON - FLASH
05Navigation ModeRTB / HOME WAYPOINTNOTE: Select return-to-base waypoint on navigation system.
06Fuel StateBINGO CHECK - RTB DECISIONNOTE: Verify sufficient fuel for RTB with planned reserve.
07Engine ParametersCHECK - BOTH IN LIMITS
08Weapons StatusVERIFY REMAINING STORESNOTE: Note any hung weapons or asymmetric loads affecting handling.
PHS 15 — Descent / Approach9 steps
01NavigationHOME BASE SET - RSBN / VORNOTE: Tune navigation aid for recovery airfield.
02AltimeterSET LOCAL QNH
03Descent Speed500-600 KM/H
04Fuel StateADEQUATE FOR APPROACH
05Pattern EntryBREAK AT 400-500 M / 500-600 KM/HNOTE: Enter overhead break, reduce to pattern speed in downwind.
06Landing GearDOWN (below 400 km/h)CAUTION: Do not exceed 400 km/h gear transit speed.
07Landing Gear Lights3 GREEN - DOWN AND LOCKED
08FlapsLANDING POSITION (below 350 km/h)
09Air BrakesAS REQUIRED FOR DECELERATION
PHS 16 — Landing11 steps
01Final Approach Speed250 KM/H (NORMAL) / 270 KM/H (HEAVY)NOTE: Standard weight 250 km/h. Heavy stores or fuel increases approach speed.
02Glideslope5 M/SEC DESCENT RATECAUTION: Maintain stable approach - Su-25T approaches are steep at 5-6 deg glideslope.
03Landing GearCONFIRM DOWN - 3 GREEN
04FlapsCONFIRM LANDING POSITION
05Engine ParametersCHECK - BOTH IN LIMITS
06Threshold CrossAT RUNWAY THRESHOLDNOTE: Cross threshold at 250 km/h, reduce power and allow aircraft to settle.
07TouchdownMAIN GEAR FIRSTNOTE: Main gear touchdown, then lower nosewheel gently.
08ThrottlesIDLE
09Air BrakesEXTENDNOTE: Deploy air brakes immediately on touchdown for aerodynamic braking.
10Drag ChuteDEPLOYNOTE: Deploy drag chute after main gear touchdown to assist deceleration.
11Wheel BrakesAPPLY BELOW 200 KM/HNOTE: Apply brakes progressively as speed decreases below 200 km/h.
PHS 17 — After Landing9 steps
01Drag ChuteJETTISON CLEAR OF RUNWAY
02Air BrakesRETRACT AFTER RUNWAY CLEAR
03FlapsRETRACT
04Master ArmSAFE / OFF
05ECMOFF
06Navigation LightsON - STEADY
07Landing Gear LightsON FAR FLASH (TAXI MODE)
08Throttles~50% FOR TAXINOTE: Reduce to taxi power for safe ground speed.
09Taxi to ParkingFOLLOW TAXIWAY SIGNS
PHS 18 — Shutdown16 steps
01Parking BrakeSET
02ThrottlesIDLE - 2 MINUTE COOLDOWNNOTE: Allow engines to cool at idle for 2 minutes before shutdown to prevent hot-section damage.
03AvionicsSHKVAL - OFF
04Klen-PS LaserOFF
05ECM / RWROFF
06IFFOFF
07RadioOFF
08Navigation System (PNK)OFF
09Right EngineSHUT DOWN (RShift + End)NOTE: Move right throttle to OFF / cutoff position. Monitor EGT decreasing.
10Left EngineSHUT DOWNNOTE: Move left throttle to OFF / cutoff position.
11Engine ParametersRPM AND EGT DECREASING TO ZERO
12Navigation LightsOFF
13Landing Gear LightsOFF
14Ejection SeatSAFEWARNING: Safe the ejection seat before anyone approaches the aircraft.
15Battery SwitchOFF
16CanopyOPEN
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