ALPHA Su-47 REFERENCE INFORMATION For standard procedures, see the Checklists tab. Total Flight Simulator aircraft weight with full fuel 55,464 lbs NOTE: To adjust fuel load, on the Aircraft menu, click Fuel. VMO - Maximum Operating Speed (airspeed) 1200 KIAS (primary display) MMO - Maximum Operating Speed (Mach) 2.10 Mach VA - Maneuvering Speed 55,464 lbs. 250 KIAS (sea level) 325 KIAS (20,000') 400 KIAS (40,000') VLO - Maximum Gear Operating Speed 350 KIAS VLE - Maximum Landing Gear Extension Speed 400 KIAS VFE - Maximum Flaps Extended Speed 300 KIAS (flaps 10 degrees) 270 KIAS (flaps 20 degrees) 240 KIAS (flaps 30 degrees) 225 KIAS (flaps 40 degrees) V1 - Takeoff Decision Speed (dry runway; standard temperature) 125 KIAS (for all conditions, with anti-skid off) VR - Rotation Speed (dry runway; standard temperature) Sea Level 135 KIAS (55,464 lbs) 5,000' 140 KIAS (55,464 lbs) V2 - Takeoff Safety Speed (dry runway, standard temperature) Sea Level 140 KIAS (55,464 lbs) 5,000' 145 KIAS (55,464 lbs) VAPP - Approach Climb Speed (1/2 flaps; gear up) <4,000' 160 KIAS (55,464 lbs) 5,000' 165 KIAS (55,464 lbs) VREF - Landing Approach Speed (full flaps; gear down) <4,000' 120 KIAS (55,464 lbs) 5,000' 125 KIAS (55,464 lbs) Best Glide Speed 140 KIAS (gear and flaps up; both engines inoperative) NOTE: For explanations of speeds used on this tab, see "V-speeds" in the Glossary section of Help.