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Su-25T Frogfoot Startup Checklist
FLIGHT2.23.0Checklist
Su-25T FrogfootDCS WORLD · Startup Checklist · 172 steps · 18 phases
PHS 1 - Pre-Flight Planning8 steps
| 01 | Mission BriefREVIEWEDNOTE: Review mission type, target area, ROE, and threat environment. Su-25T specialises in anti-tank and precision CAS with Vikhr/Shkval system. | |
| 02 | Weather BriefingREVIEWEDNOTE: Check departure, target area, and recovery weather. Low-level operations require good visibility. | |
| 03 | NOTAMs / AirspaceREVIEWEDNOTE: Check restricted areas, FEBA position, and SAM threat rings. | |
| 04 | Fuel Planning - Bingo / JokerSETNOTE: Internal fuel ~3,600 kg. Low-level CAS burns significantly more. Plan bingo for RTB with reserve. | |
| 05 | Stores / LoadoutVERIFIEDNOTE: Confirm weapons per mission - Vikhr ATGMs require Shkval to be active. Verify chaff/flare count. | |
| 06 | Steerpoints / WaypointsPROGRAMMEDNOTE: Plan route to target area, IP, attack axis, and egress. Note target coordinates for Shkval slew if needed. | |
| 07 | Radio Frequencies / IFFSETNOTE: Set radio presets. Confirm IFF codes with controlling authority. FAC frequency if CAS tasked. | |
| 08 | Divert BasesIDENTIFIEDNOTE: Know nearest divert fields and frequencies. Su-25T has no radar - visual identification needed. |
PHS 2 - Electrical4 steps
| 01 | Battery SwitchONNOTE: Master battery on - activates DC bus. Navigation system begins alignment on power. | |
| 02 | Cockpit LightingSET AS REQUIRED | |
| 03 | Warning / Caution PanelCHECK - NOTE ANY FAULTS | |
| 04 | Fuel QuantityCHECK - NOTE TOTALNOTE: Verify fuel load matches briefed quantity on fuel quantity indicator. |
PHS 3 - INS / Navigation Alignment4 steps
| 01 | Navigation System (PNK)ALIGNINGNOTE: Turn on PNK navigation system. The inertial platform requires approximately 3 minutes stationary alignment. | |
| 02 | Navigation Mode SelectorINU MODENOTE: Set to INU alignment mode. Do not taxi until alignment is complete. | |
| 03 | Wait for AlignmentSTATIONARY - 3 MINCAUTION: Do not move the aircraft during INS alignment. Any movement degrades navigation accuracy. | |
| 04 | Navigation System StatusREADYNOTE: Alignment complete indicator - navigation system ready for taxi. |
PHS 4 - Engine Start17 steps
| 01 | CanopyCLOSED AND LOCKEDCAUTION: Ensure canopy is fully latched before engine start. | |
| 02 | ThrottlesIDLECAUTION: Both throttles must be at idle before initiating start. | |
| 03 | Right Engine Start SwitchSTART (RAlt + Home)NOTE: Begin right engine start. Monitor RPM rise and EGT. | |
| 04 | Right Engine RPMRISING - 33%CAUTION: If RPM does not rise within 10 seconds, abort start and check for fault. | |
| 05 | Right Engine EGT During Start< 500 C BEFORE 33% RPMWARNING: Hot start if EGT exceeds limits before 33% RPM - move throttle to OFF immediately. | |
| 06 | Right Engine at 33% RPMADVANCE THROTTLE TO IDLE GATE | |
| 07 | Right Engine EGT at Idle440 C (40% RPM)NOTE: Normal idle EGT is approximately 440 degrees C at 40% RPM. | |
| 08 | Right Engine StatusSTABLE AT IDLENOTE: Allow engine to stabilise before starting left engine. | |
| 09 | Left Engine Start SwitchSTART (RCtrl + Home)NOTE: Begin left engine start. | |
| 10 | Left Engine RPMRISING - 33% | |
| 11 | Left Engine EGT During Start< 500 C BEFORE 33% RPMWARNING: Hot start - abort if EGT exceeds limits before 33% RPM. | |
| 12 | Left Engine at 33% RPMADVANCE THROTTLE TO IDLE GATE | |
| 13 | Left Engine EGT at Idle440 C (40% RPM) | |
| 14 | Both EnginesSTABLE AT IDLE | |
| 15 | Engine Parameters - BothRPM AND EGT IN LIMITSNOTE: Check both engines showing normal RPM and EGT within green arc. | |
| 16 | Hydraulic SystemsPRESSURE NORMALNOTE: Right engine drives hydraulics 1 (flight controls), left engine drives hydraulics 2 (gear, brakes). | |
| 17 | GeneratorsONLINE - BATTERY CHARGING |
PHS 5 - Post-Start / Avionics15 steps
| 01 | HUDON - BRIGHTNESS SETNOTE: Adjust HUD brightness and contrast for ambient conditions. | |
| 02 | AltimeterSET QNH / QFENOTE: Set local altimeter setting. | |
| 03 | Navigation System ModeNAV MODENOTE: Switch PNK to navigation mode after alignment complete. Nav symbols appear on HUD. | |
| 04 | Shkval Electro-Optical SystemON - SELF-TESTNOTE: Shkval is the primary targeting system for Vikhr ATGMs and unguided weapons. Allow warm-up. | |
| 05 | Shkval TestPASSEDNOTE: Shkval system self-test should pass. Check electro-optical sensor slews correctly. | |
| 06 | Klen-PS Laser DesignatorONNOTE: Laser rangefinder and target designator - required for Vikhr missile guidance and range to target. | |
| 07 | Laser Status LampGREEN (SAFE)NOTE: Green lamp confirms Klen-PS is active. Laser fires only when weapons are hot and trigger is squeezed. | |
| 08 | ECM System (L-166S1)STANDBY - AS REQUIREDNOTE: IR jammer and chaff/flare system. Configure per threat environment briefing. | |
| 09 | SPO-15 RWRON - CHECKNOTE: Radar warning receiver. Confirm audio working and display active. | |
| 10 | Chaff / Flare SystemLOADED - MODE SETNOTE: Verify chaff and flare counts. Set appropriate program for mission threat level. | |
| 11 | IFF SystemSET CODESNOTE: Set IFF transponder modes and codes per ATO. | |
| 12 | Radio (R-862 / R-828)SET FREQUENCIESNOTE: Set primary and secondary radio frequencies. R-828 for ground forces/FAC comms. | |
| 13 | Master ArmOFF / SAFECAUTION: Keep weapons safe until arming area or over sea. | |
| 14 | Weapons Station DisplayVERIFY LOADSNOTE: Confirm weapon pylons show correct stores on weapons panel. | |
| 15 | GSh-30-2 GunCHECKED - 250 ROUNDS |
PHS 6 - Before Taxi9 steps
| 01 | INS / NavigationALIGNMENT COMPLETENOTE: Confirm navigation system is fully aligned and in NAV mode before moving. | |
| 02 | Flight ControlsFULL TRAVEL - FREE AND CORRECTCAUTION: Full stick deflection in all axes - verify correct surface movement before taxiing. | |
| 03 | FlapsCHECK - RETRACTED | |
| 04 | Air BrakesCHECK - RETRACTED | |
| 05 | TrimSET FOR TAKEOFF | |
| 06 | SlatsCHECK - RETRACTED | |
| 07 | Engine ParametersBOTH ENGINES STABLE | |
| 08 | Navigation LightsON - STEADYNOTE: Steady nav lights for ground operations. | |
| 09 | Parking BrakeSET |
PHS 7 - Taxi7 steps
| 01 | Parking BrakeRELEASE | |
| 02 | ThrottlesADVANCE TO ~50%NOTE: Su-25T requires significant thrust to start rolling due to weight. | |
| 03 | BrakesCHECK - APPLY AND RELEASENOTE: Test brakes immediately as aircraft begins rolling. | |
| 04 | Nosewheel SteeringACTIVE - CHECK RESPONSE | |
| 05 | Taxi Speed< 30 KM/HCAUTION: Keep slow on ramp - aircraft is heavy and braking distance is significant. | |
| 06 | InstrumentsCHECK DURING TAXINOTE: HUD heading should track turns - confirms INS is working correctly. | |
| 07 | Landing Gear LightsON - FAR FLASH |
PHS 8 - Before Takeoff13 steps
| 01 | Ejection SeatARMEDWARNING: Confirm K-36D ejection seat is armed before takeoff. | |
| 02 | CanopyCLOSED AND LOCKED | |
| 03 | Oxygen SystemON - CHECK FLOW AND PRESSURE | |
| 04 | Flight ControlsFULL TRAVEL - FREE AND CORRECT | |
| 05 | FlapsTAKEOFF POSITIONNOTE: Set flaps to takeoff position. Reduces required runway length. | |
| 06 | Air BrakesRETRACTED | |
| 07 | TrimSET FOR TAKEOFF | |
| 08 | Engine ParametersBOTH ENGINES IN LIMITS | |
| 09 | Fuel QuantityCHECK AS BRIEFED | |
| 10 | Navigation LightsON - FLASHNOTE: Switch to flashing for flight operations. | |
| 11 | ECM / JammerAS REQUIRED | |
| 12 | Master ArmOFF | |
| 13 | Warning PanelCLEAR - NO ACTIVE WARNINGSCAUTION: Resolve any active caution/warning lights before committing to takeoff. |
PHS 9 - Takeoff10 steps
| 01 | Lineup on RunwayCENTERLINE | |
| 02 | BrakesHOLD | |
| 03 | Throttles100% MILITARY POWERNOTE: Advance to full military power - Su-25T has no afterburner. Check both engines symmetrical. | |
| 04 | Engine ParametersCHECK SYMMETRICAL THRUST | |
| 05 | BrakesRELEASE | |
| 06 | AccelerationMONITOR AIRSPEED | |
| 07 | At ~160-180 km/h (light)EASE NOSEWHEEL OFFNOTE: Gently relieve nosewheel pressure at 160-180 km/h. Full rotation at 240-260 km/h. | |
| 08 | Rotate at 240-260 km/hROTATE 10-12 DEG NOSE UPNOTE: Rotate speed varies with weight. Heavy loads require ~280 km/h. | |
| 09 | Positive RateCONFIRMED | |
| 10 | Landing GearUP (above 10 m AGL)NOTE: Gear speed limit 400 km/h. |
PHS 10 - After Takeoff / Climb7 steps
| 01 | Landing GearCONFIRM UP AND LOCKED | |
| 02 | FlapsRETRACT (above 150 m AGL, speed > 320-340 km/h)NOTE: Do not retract flaps until above 150 m and accelerating through 320+ km/h. | |
| 03 | Air BrakesRETRACTED | |
| 04 | Climb Speed500 KM/H IASNOTE: Maintain 500 km/h IAS for best climb performance. | |
| 05 | Engine ParametersCHECK - BOTH IN LIMITS | |
| 06 | Fuel StateCHECK | |
| 07 | NavigationCONFIRM ROUTE ON HUD |
PHS 11 - Cruise / Transit7 steps
| 01 | AltitudeAT BRIEFED LEVEL | |
| 02 | Power Setting75-85% RPM / 700-750 KM/HNOTE: Reduce power for cruise efficiency. Low-level cruise use 500 km/h at 85-90% RPM. | |
| 03 | Fuel StateMONITOR - CHECK JOKER / BINGONOTE: High fuel burn at low level - monitor closely on long transits. | |
| 04 | NavigationMONITOR WAYPOINTS ON HUD | |
| 05 | SPO-15 RWRMONITOR FOR THREATS | |
| 06 | Engine ParametersBOTH ENGINES IN LIMITS | |
| 07 | ECMAS REQUIRED |
PHS 12 - Fence-In (Combat Entry)9 steps
| 01 | Navigation LightsOFF | |
| 02 | Shkval SystemACTIVE - CHECK SLEWNOTE: Confirm Shkval electro-optical system is operational. Slew to verify movement. | |
| 03 | Klen-PS LaserARMED - SAFE UNTIL ATTACK | |
| 04 | Master ArmONCAUTION: Master arm only in the arming area or over water away from friendly forces. | |
| 05 | Weapon SelectionSELECT WEAPON TYPENOTE: Select appropriate weapon for mission - Vikhr ATGMs, rockets, bombs, or gun. | |
| 06 | ECM / IR JammerON - AS REQUIRED | |
| 07 | Chaff / FlarePROGRAM SELECTED | |
| 08 | Fuel StateJOKER CHECK | |
| 09 | SPO-15 RWRMONITOR ACTIVELY |
PHS 13 - Attack / Weapons Employment9 steps
| 01 | Target AcquisitionIDENTIFY TARGETNOTE: Positive visual or Shkval identification required. Rules of engagement apply. | |
| 02 | Attack Mode SelectorA/G MODENOTE: Switch to air-to-ground mode (7 key in DCS). | |
| 03 | ShkvalSLEW TO TARGET - LOCKNOTE: Use Shkval sighting system to slew onto target and press Enter to lock. Green tracking box indicates lock. | |
| 04 | Attack Speed550-700 KM/HNOTE: Maintain attack speed in diving or level attack profile. | |
| 05 | Laser RangefinderACTIVE (on attack)NOTE: Klen-PS laser fires automatically during attack phase to provide range data for ballistics. | |
| 06 | Weapons ReleaseAT PIPPER / QUANTUMNOTE: Fire Vikhr at 8-6 km. Release bombs/rockets per weapon parameters. | |
| 07 | Jink / Break OffBREAK AWAY AFTER RELEASECAUTION: Break away from target immediately after weapon release. Low-level threats are significant. | |
| 08 | LaserOFF AFTER IMPACTNOTE: Turn off laser after confirmed impact to prevent overheating. | |
| 09 | Assess 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
| 01 | Master ArmSAFECAUTION: Safe weapons immediately upon departing target area. | |
| 02 | LaserOFF | |
| 03 | ECM / IR JammerOFF (if not needed) | |
| 04 | Navigation LightsON - FLASH | |
| 05 | Navigation ModeRTB / HOME WAYPOINTNOTE: Select return-to-base waypoint on navigation system. | |
| 06 | Fuel StateBINGO CHECK - RTB DECISIONNOTE: Verify sufficient fuel for RTB with planned reserve. | |
| 07 | Engine ParametersCHECK - BOTH IN LIMITS | |
| 08 | Weapons StatusVERIFY REMAINING STORESNOTE: Note any hung weapons or asymmetric loads affecting handling. |
PHS 15 - Descent / Approach9 steps
| 01 | NavigationHOME BASE SET - RSBN / VORNOTE: Tune navigation aid for recovery airfield. | |
| 02 | AltimeterSET LOCAL QNH | |
| 03 | Descent Speed500-600 KM/H | |
| 04 | Fuel StateADEQUATE FOR APPROACH | |
| 05 | Pattern EntryBREAK AT 400-500 M / 500-600 KM/HNOTE: Enter overhead break, reduce to pattern speed in downwind. | |
| 06 | Landing GearDOWN (below 400 km/h)CAUTION: Do not exceed 400 km/h gear transit speed. | |
| 07 | Landing Gear Lights3 GREEN - DOWN AND LOCKED | |
| 08 | FlapsLANDING POSITION (below 350 km/h) | |
| 09 | Air BrakesAS REQUIRED FOR DECELERATION |
PHS 16 - Landing11 steps
| 01 | Final Approach Speed250 KM/H (NORMAL) / 270 KM/H (HEAVY)NOTE: Standard weight 250 km/h. Heavy stores or fuel increases approach speed. | |
| 02 | Glideslope5 M/SEC DESCENT RATECAUTION: Maintain stable approach - Su-25T approaches are steep at 5-6 deg glideslope. | |
| 03 | Landing GearCONFIRM DOWN - 3 GREEN | |
| 04 | FlapsCONFIRM LANDING POSITION | |
| 05 | Engine ParametersCHECK - BOTH IN LIMITS | |
| 06 | Threshold CrossAT RUNWAY THRESHOLDNOTE: Cross threshold at 250 km/h, reduce power and allow aircraft to settle. | |
| 07 | TouchdownMAIN GEAR FIRSTNOTE: Main gear touchdown, then lower nosewheel gently. | |
| 08 | ThrottlesIDLE | |
| 09 | Air BrakesEXTENDNOTE: Deploy air brakes immediately on touchdown for aerodynamic braking. | |
| 10 | Drag ChuteDEPLOYNOTE: Deploy drag chute after main gear touchdown to assist deceleration. | |
| 11 | Wheel BrakesAPPLY BELOW 200 KM/HNOTE: Apply brakes progressively as speed decreases below 200 km/h. |
PHS 17 - After Landing9 steps
| 01 | Drag ChuteJETTISON CLEAR OF RUNWAY | |
| 02 | Air BrakesRETRACT AFTER RUNWAY CLEAR | |
| 03 | FlapsRETRACT | |
| 04 | Master ArmSAFE / OFF | |
| 05 | ECMOFF | |
| 06 | Navigation LightsON - STEADY | |
| 07 | Landing Gear LightsON FAR FLASH (TAXI MODE) | |
| 08 | Throttles~50% FOR TAXINOTE: Reduce to taxi power for safe ground speed. | |
| 09 | Taxi to ParkingFOLLOW TAXIWAY SIGNS |
PHS 18 - Shutdown16 steps
| 01 | Parking BrakeSET | |
| 02 | ThrottlesIDLE - 2 MINUTE COOLDOWNNOTE: Allow engines to cool at idle for 2 minutes before shutdown to prevent hot-section damage. | |
| 03 | AvionicsSHKVAL - OFF | |
| 04 | Klen-PS LaserOFF | |
| 05 | ECM / RWROFF | |
| 06 | IFFOFF | |
| 07 | RadioOFF | |
| 08 | Navigation System (PNK)OFF | |
| 09 | Right EngineSHUT DOWN (RShift + End)NOTE: Move right throttle to OFF / cutoff position. Monitor EGT decreasing. | |
| 10 | Left EngineSHUT DOWNNOTE: Move left throttle to OFF / cutoff position. | |
| 11 | Engine ParametersRPM AND EGT DECREASING TO ZERO | |
| 12 | Navigation LightsOFF | |
| 13 | Landing Gear LightsOFF | |
| 14 | Ejection SeatSAFEWARNING: Safe the ejection seat before anyone approaches the aircraft. | |
| 15 | Battery SwitchOFF | |
| 16 | CanopyOPEN |