Doors auto
once experienced a shorter t/o run in a 757 than in a Cessna - about 1800ft.
Well it may have felt like 1800ft Sir but, really?
I dont fly jets, but I am on a DHC-6-300 Twin Otter which you all may have heard. Its a STOL 19 seat Turbo Prop, still very popular in the PNG New Guinea and Africa and any other Countries that has short strips or short commutes.
Take off Distance on a 35 degree day, nil wind, nil slope, at MTOW which is 12,500 lbs, sea level, and Temp adjusted torque computer power Setting will give a take roll to 50 feet agl of the following:
1. FLAP SET 10 deg-------1750 ft
2. FLAP SET 20 deg-------1350 ft.
Now your telling me a 757 can nearly match this?
May remind all of you, when you watch these Jets take off, do you know what their respective loads are?
Because in the Otter for eg. when Im light we can get Airborne with 20 Flap in around 800-900 if needed.
Im at MBJ and I see the 738S take off here, AA and Delta and yes, they use alot of Runway in the busy period. Runway here is just over 8000ft.
Virgin Blue in Australia have 738 and 737-700. The later version they aquired with the smallest powerplant available as they were made for another Carrier that didnt go thru with the lease. These Jets pose obviously different calculations and performance than a standard -700. Its the same with - 800S it depends on the Engine thrust option ordered with the Aircraft.
Generally though the "Hair Dryer" CFM56 doesnt have the Thrust of a "Roller" OR BIG "PRATT". Hence the reason there on all the Plastic Buses and New Gen 737 which was incidently derived to compete with the Airbus hence the same Engine selection.
In the end You would have to get the books out guys to compare. Maybe someone out there can do the Math if they have the Manuals. 757, 737-800 Comparison or whatever.
Regards
Sheep