Boeing 747

[Adam!]

Okay, i'm intrested to find out something - I don't know the answer, and they'll proberbly be different but because I know alot about planes I know that its safe and all that malarki (So do a few other people on this forum, so unfortinataly you can't take part).

On takeoff in a Boeing 747 aircraft, do you feel the aircraft is going slow? - I mean, it goes slower than most aircraft, but then with all the extra weight and 2 more engines it's going ot happen.

It's just, it came up in conversation at school a few days ago and people that had been on a 747 said they got scared on takeoff because the plane seemed to be going so slow and very low engine power.

However, I'll say this; 747's are very safe, they have alot of engine power on departure and are going faster than you might expect.

[Overdose]

a 747 is just as same as a normal plane but bigger, you'd have to be a propper geek to notice that it was going slower.

I mean your not exactly gonna go..

"OMG THIS 747 GOES SLOWER THAN A NORMAL PLANE BECAUSE IT IS BIGGER"

etc.

But you are a propper geek so, yeah you never know.

[:Hazel]

But you are a propper geek so, yeah you never know.

Bit harsh lol.

I wouldn't know notice the difference in speed I don't think tbh.

[lSander]

I noticed nothing.
I tought same as allways, and I don't care about how fast does it take off, It's just how fast you get there, & do you get there safe.
and 747's are super safe .

[Kenneth]

The 747 TRust per
63,300 lbf PW
62,100 lbf GE
59,500 lbf RR
x 4
compared to
GE-90 of
777
Thrust Range: 74,000-115,000 lbs.
x 2
so its almost the same but the size of the 747 is big so it seems wierd also V1 is usally 141 and VR is 145 and V2 175 so its fast

[Adam!]

I don't know much about 747, lol..

However, 141 for V1 is just about the same for any aircraft, give or take 10/20 knots.

V2 175 is fast.

What I don't get is, can you stop a 747 at 145 at VR if you decide to abort? - Makes you wonder, you must be able too though.

[Kenneth]

No V1 is go or no go also know as decide and climb is V2 + 20

[Adam!]

By the time you've said ABORT you'd be at VR lol..

[Kenneth]

You would usally abort before V1 in case of failure but after V1 you have to take anything into the sky.

[-Soph-]

Yeah when I flew over here to USA the other day on a 747 I found it slow on take off, I always do.. I was also sat right at the back of the plane, and I felt it shaking and swaying from side to side as well.. which was a bit odd