Question for Falcon 2000 Pilots

[bigD]

Ah. Thank you Wiggums. The way I understand that site you listed - for a given takeoff speed (dependant on weight), the BFL is the smallest amount of runway necessary to meet both accelerate-stop and accelerate-go conditions. Right? So the BFL is what you guys use to determine whether a given runway is long enough for acceptable use?

If this is the case, I'm really impressed with the 2,990' for the 900EX!

 

[banned username 2]

Chicago Midway to Denver Int'l.
10 paxs with bags
OAT 20 at both MDW / DEN

.........................F2000.......F900EX.......GV
TAKE OFF WT:...31600.......36300.....61400
DISTANCE.........4590
......V1...............117
......Vr................120
......V2...............122
......Vfr...............132
......Vsr..............157
FLT TIME..........1+56............1+57.......1+53
FUEL BURN.......3691............4153.......5358.......Jet Plan data
CRUISE MACH...M.80.............M.80......M.83.........company SOP
ALTITUDE........FL430............FL430......FL470......Jet Plan data
LANDING WT...27900...........32200......56100
DISTANCE........5091...........................................factored at 1.67
......Vref............116

Anyone care to fill in the blanks on the other two?

This is a 900EX with 10 passengers, and enough fuel to get from Chicago to Denver on a 20C day.

V1.............101
VR/V2.......113
Vfr............138
Vse...........163

BFL........2,990 ft

Landing Ref........112
Landing Distance...2,470 ft (Landing Field Length (FAR 135) 4,125 ft)

 

[Postflight]

3 engines v. 2 engines

Just a VERY basic/quick observation or reminder:

Any three engine aircraft only loses 1/3 of its total trust with an engine failure on take off (or any other time

Any twin loses 50% of its thrust if an engine failes

Therefore, for comparable aircraft (regarding thrust to weight ratio--all other things being semi-normal), the more engines an aircraft has, the better (shorter) its BFL.

Definately NOT a dig on the 900; I'd love to back into the front seat of ANY Falcon!

 

[banned username 2]

Re: 3 engines v. 2 engines

Just a VERY basic/quick observation or reminder:

Any three engine aircraft only loses 1/3 of its total trust with an engine failure on take off (or any other time

Any twin loses 50% of its thrust if an engine failes

Therefore, for comparable aircraft (regarding thrust to weight ratio--all other things being semi-normal), the more engines an aircraft has, the better (shorter) its BFL.

Definately NOT a dig on the 900; I'd love to back into the front seat of ANY Falcon!

You are absolutely correct!