Sponsor Message:
Civil Aviation Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Long Take Off Rolls  
User currently offline747LUVR From United States of America, joined Jul 2005, 394 posts, RR: 0
Posted (8 years 12 months 4 days 17 hours ago) and read 9378 times:

Does anyone know of some very long take off rolls? I have been on a few 45-50 second rolls, but nothing quite a minute? Anyone wish to elabororate about a long take off?

46 replies: All unread, showing first 25:
 
User currently offlinePhilb From Ireland, joined May 1999, 2915 posts, RR: 13
Reply 1, posted (8 years 12 months 4 days 16 hours ago) and read 9318 times:

Take off is an exact science. Each take off is based on calculations which include the total aircraft weight, the runway slope and adhesion, the wind component, the height above sea level, the temperature and the pressure.
The power setting needed is then calculated along with the V1, V2 and rotate speeds and the distance needed to achieve these. Mmost jet aircraft take off on 75% - 80% power wherever possible to maximise time between major engine overhauls and to save fuel.

In hot conditions, at high airports and/or when an aircraft is operating at maximum weight for the runway, the time to rotation can be comparatively long.

Mexico City is renowned for long take offs. In the 1960s and 1970s some of Mexicana B727s had JATO (Jet Assisted Take Off) bottles to assist the engines and these were regularly used.

Even low and cold runways can see long take offs. I was on a BA 747-200 ex LHR for Miami in March 1988. The wind component changed, we returned to the gate, off loaded some freight and even then only rotated at 57 seconds which, on 28R at LHR (as it was then) takes you a long way down towards the reservoirs!


User currently offlineGoldenArgosy From United States of America, joined Jun 2005, 124 posts, RR: 0
Reply 2, posted (8 years 12 months 4 days 16 hours ago) and read 9299 times:

I don't know what it was in seconds or minutes, but last February I was on Singapore's 340-500 taking off from Newark bound for Singapore. At a certain point my heart started racing because I thought the thing would never leave the ground. Seriously, there must have been a foot or two left of the runway before it became airborne. That was by far the longest and most worrisome roll I'd ever experienced.

User currently offline1MillionFlyer From , joined Dec 1969, posts, RR:
Reply 3, posted (8 years 12 months 4 days 16 hours ago) and read 9286 times:

DEN in the summer is always interesting, you don;t build a 16.000 ft runway if you don;t need it !

I saw the LH 744 taking off the other day...what a site to see that heavy bird trying to climb out in 38C/96 F heat  Smile


User currently offlineFlyGuyClt From United States of America, joined Aug 2005, 537 posts, RR: 8
Reply 4, posted (8 years 12 months 4 days 16 hours ago) and read 9269 times:

Anyone ever been on a full DC9-50 in July zooming down the runway in MIA going on a 3 hour flight? The roll is almost as long  Smile

Safe Flying ~!



Florida Express, Braniff II and ......
User currently offlineUdo From , joined Dec 1969, posts, RR:
Reply 5, posted (8 years 12 months 4 days 16 hours ago) and read 9228 times:

I once had the pleasure to take off in a fully loaded Iberia A340-300 from Madrid on a hot evening (bound for Miami). Don't know how long it lasted in seconds, but after a while I thought we would be driving to Barcelona rather than getting airborne...  scratchchin 


Regards
Udo


User currently offlineHrhf1 From Canada, joined May 2005, 105 posts, RR: 1
Reply 6, posted (8 years 12 months 4 days 15 hours ago) and read 9150 times:

A fully loaded AC 762 from Las Vegas in July certainly took some time to rotate the day I was on it. Temperature was about 114F, (45C) and at 2200' it made for a loooooong roll. No exact time, but I'd guess it was 50 seconds minimum....hence 14500' of runway. Add to that the convection heat bouncing the aircraft around right after takeoff and you had some antsy pax! It was good fun!

[Edited 2005-08-02 19:22:29]

[Edited 2005-08-02 19:23:13]

User currently offlineCartoonranger From United Arab Emirates, joined Aug 2005, 89 posts, RR: 0
Reply 7, posted (8 years 12 months 4 days 15 hours ago) and read 9108 times:

The RAF still go off in Bahrain with VC-10's at 152 tonnes +45 degrees C Outside Air Temp. The take off roll is truly monumental. Of course performance dictates that losing a donk above V1 should not be a problem, but having glared the runway end lights squarely in the face on more than one occasion i always prayed that it wouldn't happen as i severly doubt she'd want to fly.

User currently offlineSA7700 From South Africa, joined Dec 2003, 3431 posts, RR: 26
Reply 8, posted (8 years 12 months 4 days 15 hours ago) and read 9056 times:
AIRLINERS.NET CREW
HEAD MODERATOR

Fully loaded flights in JNB can take up a huge chunk of the runway. I have heard that QF sometimes delay their departures (SDT18h00) out of JNB in order for the temps to come down and the payload restrictions to be lowered.


Rgds

SA7700



When you are doing stuff that nobody has done before, there is no manual – Kevin McCloud (Grand Designs)
User currently offlineACDC8 From Canada, joined Mar 2005, 7642 posts, RR: 36
Reply 9, posted (8 years 12 months 4 days 15 hours ago) and read 9005 times:

The longest take-off roll I've ever experienced was in 1991. We were taking off from YYC's RWY 34, which is 12,675 feet, on one of KLM's 747 combi's. Anyway, we were sitting at the end of the runway, brakes on, full power, sat there for a few seconds, brakes off, and off we went. We were just rolling and rolling for what seemed like the longest time, by the time we finally got in the air, we were just crossing the other end of the runway!

I think one of the reasons we needed such a long take-off roll was due to the fact that they stuck a helicopter (minus the rotors) in the back of the airplane! So we must have been pretty well maxed out with weight!



A Grumpy German Is A Sauerkraut
User currently offlineDkny From Ethiopia, joined Mar 2004, 714 posts, RR: 2
Reply 10, posted (8 years 12 months 4 days 15 hours ago) and read 8951 times:

Most long haul take off rolls out of ADD are long. ADD's high alt is the reason for the long take off rolls.

User currently offlineGoingboeing From United States of America, joined Dec 1999, 4875 posts, RR: 16
Reply 11, posted (8 years 12 months 4 days 15 hours ago) and read 8947 times:

I don't know how long the roll was, but I was on a Piedmont flight from CLT-DFW back in the mid 80's. My coworker (who also travelled a lot) was sitting next to me and the engines spooled up and we started to roll. And roll. And roll. And roll. Finally she looked at me with a panicked look on her face and said "Shouldn't we be in the air by now?" I said "yes" (although we were still rolling down the runway) when FINALLY the plane rotated and we took off. Scared the living sh*t out of me.

User currently offlineFLYiCRJ From United States of America, joined Jul 2005, 55 posts, RR: 0
Reply 12, posted (8 years 12 months 4 days 15 hours ago) and read 8931 times:

Last July I was on Continental's flight 15 from EWR - HNL. If you are familar with Newark airport you will understand what i am talking about here. We taxied to 22R started our take off roll and we were past the Fedex building before we rotated. We weren't more than 50 feet off the ground before the end of the runway came up. Now my question is because of our long T/O roll, what happens if they had to perform a rejected takeoff?

User currently offlineAirRyan From United States of America, joined Mar 2005, 2532 posts, RR: 5
Reply 13, posted (8 years 12 months 4 days 14 hours ago) and read 8901 times:

Pilot's opt to derate the takeoff rolls to save wear and tear on the engine as well as gas. I'm sure it's not just a decision of the pilot as much as it is often company policy per the condition.

As part of the pre-flight on your FMC you have 3 choices - normal full power and then two derated options. The computer takes into account your load, fuel, ambient temp, and runway length to calculate just how much power is needed to takeoff on that runway at that time with that load. Pilot's also have the option to derate the climb by two gradients as well.


User currently offlineGoingboeing From United States of America, joined Dec 1999, 4875 posts, RR: 16
Reply 14, posted (8 years 12 months 4 days 14 hours ago) and read 8901 times:

Quoting FLYiCRJ (Reply 12):
Now my question is because of our long T/O roll, what happens if they had to perform a rejected takeoff?

As far as I know, once a plane passes V1, there isn't any rejecting a takeoff.


User currently offlineCartoonranger From United Arab Emirates, joined Aug 2005, 89 posts, RR: 0
Reply 15, posted (8 years 12 months 4 days 14 hours ago) and read 8838 times:

Sometimes aircraft will deliberately spend longer on the runway anyway. If there is a large obstacle at the end of a runway, it is often safer to leave V1 as late as possible. This is because, should you lose an engine you would be better off on the ground rather than trying to fly over it. For the VC-10 This is factored in Regulated Take off graphs which dictate what speed V1 will occur. It may be hard to believe but even heavy at 150 knots, most modern day aircraft have phenomenal stopping power so the actual stopping distance may not be as great as you think!

Runways can also have different Take Off Distance Available (TODA) and Accelerate Stop Distance Available (ASDA - i.e. 0 Kts to V1 and back to 0 Kts again)


User currently offlineBritPilot777 From United Kingdom, joined Apr 2004, 1075 posts, RR: 2
Reply 16, posted (8 years 12 months 4 days 14 hours ago) and read 8830 times:

You see it even at LHR quite often, a lot of aircraft take up nearly all the runway, amazing sight seeing them lift off though at the end with some awesome wing flex!


Forever Flight
User currently offlineUnited_Fan From United States of America, joined Nov 2000, 7456 posts, RR: 7
Reply 17, posted (8 years 12 months 4 days 13 hours ago) and read 8742 times:

Champion 727's in LAS sure have long rolls!


'Empathy was yesterday...Today, you're wasting my Mother-F'ing time' - Heat.
User currently offlineFlySSC From United States of America, joined Aug 2003, 7403 posts, RR: 57
Reply 18, posted (8 years 12 months 4 days 13 hours ago) and read 8701 times:

The following was loooong take off run... :


View Large View Medium
Click here for bigger photo!

Photo © Sam Chui
View Large View Medium
Click here for bigger photo!

Photo © Sam Chui



User currently offlineJeffry747 From United States of America, joined Jun 2005, 963 posts, RR: 2
Reply 19, posted (8 years 12 months 4 days 9 hours ago) and read 8255 times:

A while back I was in the UPS parking lot at SDF, which is situated at the departure end of 17L (8500ft). Had a full 741 going to ANC rotate with less than 1,000 ft left. This puppy cleared the blast fence by about 20-30 ft and thundered over my head low enough that I could almost count the lug nuts on the main landing gear, which were just starting to retract. Best takeoff I have ever seen.


C'mon Big B, FLY!
User currently offlineATA L1011 From United States of America, joined Feb 2001, 1378 posts, RR: 6
Reply 20, posted (8 years 12 months 4 days 9 hours ago) and read 8132 times:

Back in 97 on N195AT, L1011-1 from LAX to HNL that thing was loaded with over 300 people and the take off roll was 55 seconds, I remember us rotating just past the Tom Bradley Terminal on the South Side of LAX.


Treat others as you expect to be treated!
User currently offlineVulindlela744 From United States of America, joined Jan 2000, 519 posts, RR: 0
Reply 21, posted (8 years 12 months 4 days 8 hours ago) and read 7867 times:

I flew from Miami to Cape Town back in '97. It was a non stop on a fully loaded 747-400 and it took almost the whole south runway to get airborne. That runway is almost 13,000 ft. It was really something.

User currently offlineN270ft From United Kingdom, joined May 2005, 85 posts, RR: 0
Reply 22, posted (8 years 12 months 4 days 8 hours ago) and read 7834 times:

In 1998, I was on A Virgin 747-200 "California Girl" From MCO-MAN. I seriously thought the plane would never leave thr ground.

Also, in 2000 I was on this same plane from LGW-EWR and they had to turn the cabin electricity off over Newfoundland because there was smoke in the cabin. The plane landed safely however, and I cringed everytime I saw that plane since.


User currently offlineJmc1975 From Israel, joined Sep 2000, 3253 posts, RR: 15
Reply 23, posted (8 years 12 months 4 days 8 hours ago) and read 7762 times:

My longest takeoff roll: I flew from Atlanta to Cape Town nonstop in Jan. 2003 on an SA 744 (ZS-SAY). Although the outside temp. was at the freezing mark, the flight was restricted by 20 pax. About 45 seconds into our takeoff roll, the pax began to say things like "get up" and were in doubt if we would make it. I had an aisle seat on the side of the aircraft, which had a perfect view of the left winglet. As we began to rotate, I saw that winglet shoot up about 10 feet. As we lifted up, there was condsierable airframe shudder and we had a slow climbout as we barely clear the Georgia woods by the Chick-fil-a headquarters.


.......
User currently offlineJyatlantic From , joined Dec 1969, posts, RR:
Reply 24, posted (8 years 12 months 4 days 6 hours ago) and read 7167 times:

I was on a BA 744 out of JNB at full capacity. The roll was expectantly long with the full load and altitude.

25 YBCS : I can remember a flight on a 707-338 of Air Nuigini from HNL to POM in 1981 where thundering down the Reef Runway I saw the 1000 foot remaining panel
26 Matt27 : I flew SAS A340-300 CPH-BKK-CPH, and the roll at CPH was 55 sec, and at BKK was 65 sec. The A340 wasn't very powerful during take-off, but a long roll
27 ZK-NBT : My first ever flight AKL-HNL on a CO 742 had rather long take off rolls from both airports my dad tells me, I can't remember since I was only 4 at the
28 Post contains links Powerofpi : check this out... http://www.flightlevel350.com/viewer.php?id=2164&rating=yes enjoy
29 Post contains images PlaneMad : Go to JNB if you want long takeoffs. I have flown a CE 732 out of there which had a 1 minute roll and a VS A343 out of there which had a 1 minute 5 se
30 SQ773 : My first extra long take off was in DXB back in 1999 on board a fully loaded LH 343 . It was 02.00 am and the weather was very hot and humid . I remem
31 TIMC : Sometimes at MAN, the PIA and EUK birds take up almost all of the runway to take off. The EUK regularly has 450+ pax on it, so its one heavy plane! Wh
32 Post contains images Pilotaydin : call me ULTRA nerd, back in high school i did a study for a year for my math project on the average take off time for an airliner, i collected data fo
33 JETSTREAM63 : I was on board a Singapore Airlines 747-400 (9V-SMA) departing fully loaded for LHR in 1989 and I timed the take off roll at 59 seconds.
34 Post contains images Broke : One of the more interesting take-offs I had experienced was on a 727-200 advanced with -17 engines. We coming out of La Paz and could only load about
35 ZSOFN : Flying LHR-JNB on VS's 744 G-VFAB in late 2001. The roll on 27L took ages! We must've been full cos we cruised at FL290 until south of the Sahara! On
36 Logan22L : I always count in my head the time to rotation (which can be a bit subjective due to "turn-and-go's" and counting in my head, but as a musician, I ha
37 Ikramerica : I was on CO75 HAM-EWR yesterday, and seeing as how this pushes the limit of the 757, it was a longer roll than you normally get on a 757. We also did
38 United737522 : On my last flight, we were on a 738 DEN-MIA and it was full. Takeoff was exactly 48 seconds and we used up a good portion of the 16000 foot runway.
39 Post contains links and images Legacy135 : Not really..... under as also overroation is having a negative influence on the actual performance. So the Vr is a given number for the circumstances
40 Ken777 : QF 744 SYD-LAX a few years ago. The pilot actually announced that the plane was heavy and we would take 60 seconds going down the runway. I timed it a
41 Post contains links Jsnww81 : I flew out of Mexico City on a domestic flight to Hermosillo back in May, and the takeoff roll was so long I didn't think we'd ever get off the ground
42 Spacecadet : Couple years ago I flew from JFK-NRT in a 747-400, fully loaded with pax and fuel on a 97 degree F day. ANA has nosewheel cams on takeoff and man, my
43 N766UA : You wanna talk about eating up runway try the 727. I've seen plenty of those buggers use every last foot of runway before becoming airborne and climbi
44 Luv2fly : I flew out of LAS on a hot, hot day flying on a L1011 that once we finally took off I thought for sure we had used the PHX airport at that point. LONG
45 Legacy135 : Another reason for relatively long take off rolls is saving engines: As you may imagine, gentle use of brakes and making use of the runways length to
46 Post contains links and images Jeffry747 : Judging by the runway markings, you rotated with less than 500 ft of runway left. Oh yeah, check this photo out: View Large View MediumPhoto © K
Top Of Page
Forum Index

This topic is archived and can not be replied to any more.

Printer friendly format

Similar topics:More similar topics...
Take-Off/Landing Rolls? posted Tue Apr 20 2004 20:58:33 by Biggles20
Setting Flaps Right B4 Take-off posted Thu Nov 16 2006 05:36:35 by Turtle
Take Off Accident Video posted Mon Nov 6 2006 07:23:22 by Robster
VA Can't Take Off Until Red Tape Is Taken Off posted Fri Sep 22 2006 17:24:52 by FA4B6
'honest' Pre Take Off Announcement! posted Fri Sep 22 2006 11:05:20 by 747400F
Landing/Take Off Direction In BUD posted Thu Sep 7 2006 15:25:16 by TommyBP251b
Lufthansa To Help Air Tanzania Take-off posted Fri Aug 4 2006 15:34:10 by Jambo
Post Katrina MSY Slow To Take Off (article) posted Tue Jul 25 2006 14:25:39 by MSYtristar
Formation Take-off From LAX 9:15PM PDT 9/19 posted Thu Jul 20 2006 06:21:30 by B-787
Dimming Cabin Lights On Take Off posted Tue Jun 20 2006 00:32:06 by A380Heavy