The 737-900ER has a reputation as a runway hog. The elongated fuselage sits atop a gear that was originally designed in the 1960s for a much shorter fuselage. So the rotation angle is very carefully managed to avoid a tail strike. It lands very fast too. But it's also known as an efficient, economic cruiser, and the airlines love it.
This is why the 900ER can't fly from Maui to the mainland US, it needs over 9000ft of runway to take off at MTOW, Maui only has a 7000ft runway. 800s can barely take off in Maui when heading for the mainland, of course it is trivial for widebodies as they are barely half fueled for Hawaii to the US mainland.
Also you're right, 800s and 900ERs actually land at a higher speed than they take off at. VR is usually around 125-130kts, VRef is usually around 135-145kts.
mrvwbug44 thought the 800/900 usually needs at least 160 knots to rotate, and at least 140 to land. All that depends on weight, temperature, altitude. This one I estimate rotated at 180 knots or greater and used nearly full throttle, finally lifting off into the air some 45 seconds after spoolup.
That's due to the high altitude of Denver Airport. Since the air is less dense, aircraft needs higher speed for its wing to generate enough lift for airborne. That's also why high altitude airports have longer runway.
Eric Clifford should be a three hour and some flight to Newark. The -900ER can fly 6 hours without issue. So not a full tank. But even on 2 hour flights from lower altitudes or in moderate or mild conditions the thing simply gobbles the runway.
Today's flying public has gotten used to and expectant of those 10 second takeoff rolls...lol. I prefer those LONG rolls...it makes me feel like I got my money's worth.
I had a question about take offs, how long does it take for plane to go from the runway to stabilizing? I’m going on my first plane ride and I’m scared of the plane just accelerating at a steep angle for too long🥲
I've flown on a 737-ER out of Denver in the summertime on that very runway, and yeah, it takes awhile. Not to worry...they know precisely how long the takeoff roll is in advance, with plenty of safety factor built in.
The 900s especially take awhile to get off the ground, longer than most widebodies. Then you get the 757s which are off the ground in about 15 seconds, even in Denver.
I HATE long takeoff rolls. An incident in CLT on a Piedmont 727 back in teh 80's scared the crap out of me. We rolled for what seemed like an eternity and the gal I was travelling with, who was a seasoned traveler but not an aviation geek, looked at me and said "shouldn't we be off the ground by now". We should have. After that, I try to fly Southwest whenever possible as they seem to get off the ground and in the air as quickly as possible.
Lmao, how quick the rollout is, doesn’t depend on the airline you’re flying but factors like weight, air density, temperature, runway conditions, weather, etc.
@@flyingowl I kind of know that. I was on a plane every week back then because of my job. And this was a VERY long takeoff roll. as I said, my coworker had the same job as me - over 80% travel and both of us noticed. Maybe this will help you understand - it felt like an Aerosucre takeoff
This past September 6, I was on a 737-900ER out of Denver, and we took off on 34L, and we were off the ground in under 6000 feet, so basically, there was still 10,000 feet left on that runway.
Sam Hill still quite a lot of thrust even if not 100%. Enough power that the engine buzz is drowned out. Yes, full throttle can only be used for very short periods of time due to its wear on the engines.
This is totally normal at high altitude airports on hot days. To throttle up even more would reduce the life of the engines. May as well use that long runway. Instead of rotation at ~150 kts on on a cold day, rotation may accurate as high as 190kts, and the acceleration will be a lot less in that hot weather too. No big deal. . .
A 900ER can't derate except on 16R/34L on a hot day in Denver, unless it is running light. Their usual rotation speed would be around 140-150kts when heavy, as low as 125-130kts when light. 190kts is probably when a heavy 900ER will establish positive climb, as like the 800 they tend to float a bit after liftoff before establishing positive climb (because initial rotation angle is low to prevent tail strike)
They weren't using full thrust. I've landed at Denver when they haven't used reverse a few times. The runways are REALLY long. Narrow bodies seldom need to hurry.
They usually don't derate coming out of Denver, unless they are running really light. A 900ER that is close to MTOW is going to need over 10,000ft of runway to get off the ground in Denver.
Alphons Vorderwühlbecke lifts off about 45 seconds after spool up. That’s awful long. Also flies over the end of the runway about 6 seconds after liftoff which is pretty close, especially considering it’s a long 12,000 foot runway.
The three H’s: hot, high, and heavy. Wasn’t a hot day but warm enough. And the 737-800/900 will roll long even from low altitudes on 2 hour flights in moderate conditions. It’s that much of a dog by nature.
This was Monday April 4th. Denver to Newark. If you watch other videos of planes taking off from runway 8 in Denver you'll see how incredibly late this rotation was!
+Brennan's Flight Factor yes, n69816. The "one hundred" livery that recognizes the top 100 employees at united with a plaque near the entrance (don't know if you noticed it)
Mordalo true. You’ll find takeoffs this long at Orlando, Dallas, Los Angeles, Atlanta, etc, although the thrust won’t be nearly as much. And yes, Denver is a mile high, meaning thinner air, higher rotation speeds required, less lift, and longer takeoffs.
![MUST HEAR!!! Boeing 707 Takeoff: Four JT3D turbofan engines giving their best & loudest! [AirClips]](http://i.ytimg.com/vi/EI3owgIj6zs/mqdefault.jpg)
![MUST HEAR!!! Boeing 707 Takeoff: Four JT3D turbofan engines giving their best & loudest! [AirClips]](/img/tr.png)
The 737-900ER has a reputation as a runway hog. The elongated fuselage sits atop a gear that was originally designed in the 1960s for a much shorter fuselage. So the rotation angle is very carefully managed to avoid a tail strike. It lands very fast too. But it's also known as an efficient, economic cruiser, and the airlines love it.
Thank you Dave for this valuable insight.
This is why the 900ER can't fly from Maui to the mainland US, it needs over 9000ft of runway to take off at MTOW, Maui only has a 7000ft runway. 800s can barely take off in Maui when heading for the mainland, of course it is trivial for widebodies as they are barely half fueled for Hawaii to the US mainland.
Also you're right, 800s and 900ERs actually land at a higher speed than they take off at. VR is usually around 125-130kts, VRef is usually around 135-145kts.
It is a tail heavy cattle car of an aircraft, Pilots I've talked to tell me it's fuel burn is not up to what Boeing promised
mrvwbug44 thought the 800/900 usually needs at least 160 knots to rotate, and at least 140 to land. All that depends on weight, temperature, altitude. This one I estimate rotated at 180 knots or greater and used nearly full throttle, finally lifting off into the air some 45 seconds after spoolup.
That's due to the high altitude of Denver Airport. Since the air is less dense, aircraft needs higher speed for its wing to generate enough lift for airborne. That's also why high altitude airports have longer runway.
Chu Alan Most definitely true, but a full 900ER is a bit of an underperformer compared to other narrowbodies.
Chu Alan But the length of the runway makes up for it. DIA runways are 16k I think this is completely unnecessary
Only one of DIA's runways is 16k the others are all 12k
Doesn't "ER" mean extended range? Meaning it would be fueled with more gas making it heavier? Just thought that may be a factor too...
Eric Clifford should be a three hour and some flight to Newark. The -900ER can fly 6 hours without issue. So not a full tank. But even on 2 hour flights from lower altitudes or in moderate or mild conditions the thing simply gobbles the runway.
Wow, felt like the pilot wanted to go by road.
Today's flying public has gotten used to and expectant of those 10 second takeoff rolls...lol. I prefer those LONG rolls...it makes me feel like I got my money's worth.
Wow, that is a long run. About 40 seconds. Usually about 25-30 seconds. Wow.
I had a question about take offs, how long does it take for plane to go from the runway to stabilizing? I’m going on my first plane ride and I’m scared of the plane just accelerating at a steep angle for too long🥲
I've flown on a 737-ER out of Denver in the summertime on that very runway, and yeah, it takes awhile. Not to worry...they know precisely how long the takeoff roll is in advance, with plenty of safety factor built in.
The 900s especially take awhile to get off the ground, longer than most widebodies. Then you get the 757s which are off the ground in about 15 seconds, even in Denver.
I HATE long takeoff rolls. An incident in CLT on a Piedmont 727 back in teh 80's scared the crap out of me. We rolled for what seemed like an eternity and the gal I was travelling with, who was a seasoned traveler but not an aviation geek, looked at me and said "shouldn't we be off the ground by now". We should have. After that, I try to fly Southwest whenever possible as they seem to get off the ground and in the air as quickly as possible.
Lmao, how quick the rollout is, doesn’t depend on the airline you’re flying but factors like weight, air density, temperature, runway conditions, weather, etc.
@@flyingowl I kind of know that. I was on a plane every week back then because of my job. And this was a VERY long takeoff roll. as I said, my coworker had the same job as me - over 80% travel and both of us noticed. Maybe this will help you understand - it felt like an Aerosucre takeoff
@@KCFlyer2 😂😂
That heavy feeling when you lift is amazing! Idk why, but it’s uplifting to feel! Ha ha ha ha ha 🥁.
"V1"....."V1"......"i said V1 Goddammit!"
But not rotate!!!
Ditto the previous comments, and it was probably using a fair de-rate factor too (reduced takeoff thrust setting for non pilots).
This thing is almost as bad as what the 727 used to do out of DEN on a hot day, that plane would drag down the runway
i mean what performance do you expect from heavier stretched planes with the same engine? weakness of course. same with 737 max 10 and 737-500
This past September 6, I was on a 737-900ER out of Denver, and we took off on 34L, and we were off the ground in under 6000 feet, so basically, there was still 10,000 feet left on that runway.
Hot & high conditions
Exactly
So true
46 seconds from maxing thrust to liftoff
ecoRfan thrust wasn't maximum. Very rarely full thrust is used
Sam Hill still quite a lot of thrust even if not 100%. Enough power that the engine buzz is drowned out. Yes, full throttle can only be used for very short periods of time due to its wear on the engines.
Sam Hill when I say maxing thrust I mean when it set the thrust for takeoff.
It was not a late takeoff... It was a normal procedure !
Sampaio Pilot *looooooong takeoff
Sampaio Pilot No it wasn’t. Did you see that takeoff angle? That was like 10 degrees. It should be 20-25 degrees. Get it right
Moon’s gaming day the thin air of the mile-high altitude will give less lift. Climb out of Denver is usually sluggish.
late takeoff due to load in the aircraft. Flying from tailwind direction and even the location of the airport in high altitude.
This is totally normal at high altitude airports on hot days.
To throttle up even more would reduce the life of the engines. May as well use that long runway.
Instead of rotation at ~150 kts on on a cold day, rotation may accurate as high as 190kts, and the acceleration will be a lot less in that hot weather too.
No big deal. . .
"rotation may accurate as high as 190kts...."
??? Did you mean "rotation may *_occur_* as high as 190 kits"?
A 900ER can't derate except on 16R/34L on a hot day in Denver, unless it is running light. Their usual rotation speed would be around 140-150kts when heavy, as low as 125-130kts when light. 190kts is probably when a heavy 900ER will establish positive climb, as like the 800 they tend to float a bit after liftoff before establishing positive climb (because initial rotation angle is low to prevent tail strike)
2,830 km take off for 3,658 of runway.
They weren't using full thrust. I've landed at Denver when they haven't used reverse a few times. The runways are REALLY long. Narrow bodies seldom need to hurry.
They usually don't derate coming out of Denver, unless they are running really light. A 900ER that is close to MTOW is going to need over 10,000ft of runway to get off the ground in Denver.
Incredible, never seen, front wheel lifts ground after 55 '' ....in any widebody people would have started to worry...
Alphons Vorderwühlbecke lifts off about 45 seconds after spool up. That’s awful long. Also flies over the end of the runway about 6 seconds after liftoff which is pretty close, especially considering it’s a long 12,000 foot runway.
That's called a max fuel savings takeoff.
A captain once told me, 'If you have 3 mile of runway, use it. All these young guns showing off'
Aircraft was probably very heavy....
...very heavy
Or... . low air density!
The three H’s: hot, high, and heavy. Wasn’t a hot day but warm enough.
And the 737-800/900 will roll long even from low altitudes on 2 hour flights in moderate conditions. It’s that much of a dog by nature.
Probably high altitude and hot temps.
Welcome to Denver this is how it goes, always messes with you a lil
At least when the plane is heavy. My last flight out of there was a lightly loaded 737-700, in 40 degree weather. He was airborne in no time.
Did you film this on Apr 4?
Such power!
United loads their planes to the max. Look like summer day. And 5000 feet asl. Makes sense
The air is thin at the mile high airport.
A bit heavy captain?
The 737-900 is the longest 737 that exists
And its low to the Ground
The pilots must rotate Slowely to avoid a Tailstrike
to late takeoff o to late rotate, the plane says V1 and them is time to rotate
Tennesse Ricapa V1 is not rotate speed, it is the speed at which the plane can no longer stop with the runway remaining.
Where were you headed on this plane?
This was Monday April 4th. Denver to Newark. If you watch other videos of planes taking off from runway 8 in Denver you'll see how incredibly late this rotation was!
+Brian P yes I saw,is this jet's tail number N69816?is this in the morning?
+Brennan's Flight Factor this was UA2018 3:46PM departure from Denver to Newark
+Brennan's Flight Factor yes, n69816. The "one hundred" livery that recognizes the top 100 employees at united with a plaque near the entrance (don't know if you noticed it)
+Brian P weird,I departed San Francisco at 4:00PM(ish)on this jet,was the aircraft's tail number N69816?
Is this a 737MAX?
no
JoeyLovesTrains 737-900ER
Pretty normal higher altitude take off.
We pay whole runway, we use whole runway.
😁😁
they pilot just forgot to call for V1
under 60 sec, it is not « extremely »
Seat number?
Yeah a 4000ftMSL
Not late at all.
Nothing unusual for this bird. :)
Mordalo true. You’ll find takeoffs this long at Orlando, Dallas, Los Angeles, Atlanta, etc, although the thrust won’t be nearly as much. And yes, Denver is a mile high, meaning thinner air, higher rotation speeds required, less lift, and longer takeoffs.
Green takeoff.
nonsense. 45 second take off roll is quite normal.
this is a long take off roll: ruclips.net/video/ZyvY2GK9B3M/видео.html
about 45 seconds thats normal
Almost hit the fence
I'm not that interested in planes to be honest
....Then why are you watching this?