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Su-25A Frogfoot Quick Reference

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V-SPEEDS

SpeedValueDescription
Vr (normal)240-260 km/hRotation speed
Vr (max weight)~280 km/hRotation fully loaded
Nose gear relief160-180 km/hEase nosewheel off runway
Flap retract> 320 km/hAbove 150 m AGL
Gear limit< 400 km/hMax speed for gear transit
Approach (normal)250 km/hFinal approach, standard weight
Approach (heavy)270-280 km/hFinal approach, heavy stores
Corner speed600-650 km/hBest sustained turn rate
Bingo fuel800-1,000 kgMinimum RTB fuel (mission dependent)

POWER SETTINGS

PhaseSetting
Takeoff100% MILITARY POWER (no afterburner)
Climb100% MIL - 500 km/h IAS
Cruise (high alt)75-85% RPM / 700-750 km/h
Cruise (low level)85-90% RPM / 500 km/h
Attack run100% MIL - 550-700 km/h
ApproachAs required - maintain 250 km/h
Go-around100% MIL - retract gear / flaps

FLAP SCHEDULE

SettingMax SpeedUse
UPAnyCruise / combat
Takeoff≤ 400 km/hTakeoff roll and initial climb
FULL (Landing)≤ 350 km/hFinal approach and landing

ENGINE LIMITS

ParameterValue
Max EGT (takeoff)< 440 C at 40% RPM during start
Max EGT (start light-off)< 500 C before 33% RPM
Max RPM (continuous)100% MIL (no AB)
Idle RPM~70%
Engine typeR-195 turbojet (non-afterburning)
Oil pressureNormal range - check green arc

KEY NUMBERS

ParameterValue
Internal Fuel3,600 kg (approx)
Fuel Burn (cruise)~1,500-2,000 kg/hr
Takeoff Roll~750 m (sea level)
Landing Roll (with chute)~600 m
Pattern Alt500 m AGL / 400 km/h
Max Payload4,400 kg (11 hardpoints)
GSh-30-2 Ammo250 rounds (30mm)
Max G (clean)+6.5 g
MTOW19,300 kg
Rate of Climb3,475 m/min (11,400 ft/min)