397395 posts as of 10:44pm 5-1-03

[ViNcEnXo]

Originally posted by MiG
This is a pretty dodgy calc with assumptions and dodgy info, but it's about 50 MW at full thrust (not cruising thrust) at 35,000 feet and 900 km/h (I assumed the speed because I cbf working out what Mach 0.85 at 35,000 feet is.)
This is using thrust data at high altitude for a RB211, but I don't know which version. I know that Qantas 747s use the RB211-524G.

Rrrriiiigght.....

[piss98]

Points at MiG and then points to pic - muhemhayhemhay

[Zac]

But Bill G-tech'd his on the runway not in the air (serious).

[MiG]

Originally posted by ViNcEnXo
Rrrriiiigght.....

Stick it up ya, if you don't care.

[Sockz]

Ouch. Back to post-whoring, now...

[No-Logic]

What were the results of the gtech?

[Billzilla]

Read my signature.
I'm in Kuala Lumpur right now and I have the G-Tech with me, and I intend to do a few 0-400m run in the 747. The suction cup is a little dead though, so I have to find some plasticine to make it stick onto the dash somewhere.
We sometimes go out pretty light, sometimes heavy, so it'll be interesting.

[BALISTC]

Did Bill SERIOUSLY G-tech the plane????

*Edit* DAMN, your actually going to G-Tech a 747?? GO BILL :D

[No-Logic]

Bill for PM

[Billzilla]

Err, ta!
I think Allan Grice tried a bit of that and didn't like it. :D

Yes, I've G-Tech'd a 747 at about 72,000hp, and hopefully soon I'll get a 0-400m time for one.

[No-Logic]

Whats your estimate? It woudlnt be too fast would it, takes a little bit to get them going?

[Billzilla]

I don't know - yet! - but FWIW at maximum weight, 377.2 tonnes, at full thrust it takes nearly 45 seconds to get to about 320kph. When we're empty the plane really give you a good push in the back though, it's much faster.
(Say, a 'mere' 210 tonnes)

[Tex]

What would be your launch technique, Bill?

Would you stand on the brakes and "stall it up", then release and away we go?

Oh, and what's the stall speed of these things?

Tex

[No-Logic]

Awesome, love your job

Back to work for me, safe trip!

[No-Logic]

Sounds like a good plan to me Tex! Rip on the handy and give her boost.

Lol, Im cracking up thinking of this huge 747 sitting on the runway stalling up the engines for a 1/4-mile run.