>there is a linear decrease between gross weight and >increases in gross weight.What???!!!Cheers,Paulhttp://www.strontiumdog.plus.com/sbird.jpgOfficially licenced by British Airways plc for use of name and logo

Muppet , I really don

" PIC however does it in about 5 seconds" Holy Rocket ship batman!Best Wishes,Randy J. [email protected]" A little learning is a dangerous thing"AMD XP 2100 |MUNCHKIN 512 DDR RAM |ECS[/b ] K7S5A MB |[b]GF3 64 MEG |WIN XP PRO |MITSUBISHI DIAMOND PLUS 91 19"

Hello Marcom,Sorry that my point isn't clear, i actually mean when Boeing decided to make an extended range aircraft(like 763ER, 772ER or 773ER), because of the extra fuel onboard or heavier structure, the kind of aircraft will need more powerful engines, so the aircraft can still climb after an engine failured after Vr with MTOW... i don't have much knowledge about the ETOPS certification, but i'm sure the kind of aircrafts would need higher thrust engines, and when you play them with short range fun, you can expect excessive power when take off.

I believe at certain weight, you can make it for sure, and the time also depend on what de-rated thrust setting you have...

Ok, I set my fuel to 20% 20% 0%, Default model, no wind normal thrust takeoff and still took me from the point of throttle forward to Vr a good 18-19 seconds. So PIC is fine Muppet on my end although I have no clue how long this would take in the real world but i'm sure that there are many things that would effect this takeoff roll time.Best Wishes,Randy J. [email protected]" A little learning is a dangerous thing"AMD XP 2100 |MUNCHKIN 512 DDR RAM |ECS[/b ] K7S5A MB |[b]GF3 64 MEG |WIN XP PRO |MITSUBISHI DIAMOND PLUS 91 19"

Hi RandyAny chance u could send me ure [email protected]

I use the PIC 767 on all long hauls from EDDF to the american continent where Lufthansa whould use an A340. I use to have about 110 tons ZFW and ca. 45-55 tons fuel on board. Indeed, the only "unrealistic seeming" feature is a high acceleration to Vr. I would also like to know what is wrong here?Andreas (EDDH)

I still can't get to the bottom of this. No matter how fast I rotate (within reasonable limits) PIC is still way past V2 by the time the 'aircraft' is 'airborne'. Flap retraction speeds according to a flying manual of a well known British Airline are (assuming a flap15 takeoff) 15-5 at VREF30+20, 5-1 at VREF30+40 and up at VREF30+60.I've just completed a flight online from EGLL - LFMN. ZFW was 115.6, 14.0T fuel equalling a TOGW of 128.9T.The 'aircraft' reached VR in 5 seconds (counting in my head) and by the time I'd reached 400ft approx with gear up, speed was 190 kts approx. I maintained 15 degrees nose up until Aa.V speeds were V1 124 VR 130 V2 139 and VREF 137. Why would this well known British airline quote flap retraction speeds as above, if by the time you had only just left the ground I should have technically retracted the flaps to flaps 1.Just off to do the return LFMN - EGLL and I'll see how that goes.:-)

That's interesting because last night I did a test flight from Memphis (KMEM) to Kansas City(KMCI) using the default ZFW of 245,000 lbs and 30,000 fuel. From a standing start, it took 17 seconds after applying 70 percent throttle and engaging N1 to achieve Vr.But then again I don't unecessarily mess around with my files and I rarely install any of the add-on stuff that's floating around.

WorkingStiffCould u send me your aircraft.cfg [email protected]

I also have the exact same thing ,took 17-18 sec from brake release to vr at 30k fuel. Standard pic airfile at 245k, and poskey 767-300

According to the B767-375 Flight Crew Traing Manual:"V2 + 15 is approximately the maximum angle climb speed with take-off flaps. An airspeed increase to approximately v2 + 25 knots will not significantly affect the climb profile. If airspeed exceeds v2 + 15 knots during the initial climb, increase body angle to stop the acceleration and climb out at the slightly higher speed. Body altitudes may exceed 20 degrees at light weights and lesser flap settings. This is not considered limiting, and may be required at certain noise sensitive areas."Hope this helps.Bill MassicottHopkinton, MA

One other interesting thing that has been brought to my attention by a pilot friend is to not chase the F/D right after takeoff. Better to aim for an established angle between 15-18 degrees nose up till established in the climb. Best Wishes,Randy J. [email protected]" A little learning is a dangerous thing"AMD XP 2100 |MUNCHKIN 512 DDR RAM |ECS[/b ] K7S5A MB |[b]GF3 64 MEG |WIN XP PRO |MITSUBISHI DIAMOND PLUS 91 19"

>apparantly a 767 with a gross weight of >130000kg does 0-60mph in about 13 seconds, PIC however does >it in about 5 seconds. Muppet22,I just did a TO with gross weight 130000kg and no derated thrust. 0-60mph took 12 seconds, reaching V1 more than 20 seconds. Are you sure you entered the ZFW in the aircraft.cfg in lbs not kgs? (Just tried to set ZFW to 120000lbs in aircraft.cfg, then I get similar results as you describe):-) Regards, Matthias