Air Altitude Record - Basic Jet Engines

[nicky4096]

I think you're on the right track with this approach, though the intakes probably aren't helping. You need lots and lots of wings for this challenge, because your top speed is fixed by the engine. The higher your lift coefficient, the higher you can fly at 1KM/ sec.

You really only need enough intake to keep the jet running at altitude. Any more than that is a mass and drag penalty.

I won't be participating in this one anymore, as it's essentially a wing- spamming exercise, but I'll pass on a couple suggestions that should help your effort:

#1 You don't need all that gas. It's just dead weight and drag. Probably 2 Oscar 2 cans with the O2 drained are adequate for this job.

#2 Try the strakes as wings. They have the best lift/ drag.

Good luck!

-Slashy

Best,

-Slashy

yeah, but i still want it to look somewhat like a plane...

[nicky4096]

will PDS ever update the board?

[Tsevion]

I decided to try a different method. I think the pure jet booster people had it right, jet power can lift higher than wing power. The tricky part was achieving "level flight"... since we don't have a hard definition, I figured what someone suggested of 5 seconds between -5 and 5 vertical speed sounded reasonable... so I provided proof of that. Clearly no infiniglide, as no control surfaces were used... there was however, serious air intake abuse... but that's legit in this challenge. It could definitely be better (command chair abuse, carrying less fuel, adding even more intakes)... although I'm not sure exactly how much higher it could get...

So here we have the Maximus IV

Altitude: 49026 m

Speed: 444 m/s

Achievements: Maching Fly, Gnat (3.99t), "Budget Cuts"

Definitely not Budget Cuts though... it costs over 100k... those intakes are expensive.

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Edited December 9, 2014 by Tsevion

[GoSlash27]

Tsevion,

-Slashy

[Tsevion]

Tsevion,

"That was not flying, it was falling... with style"

-Slashy

Hah... great response ... but if what I did wasn't flying, then helicopters don't fly.

[nicky4096]

nice one tsevion!

ill see if i can get above 55km without zoom climbing today

[nicky4096]

hmm, only 52,500m.

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lifts off at 10 m/s

[GoSlash27]

Hah... great response ... but if what I did wasn't flying, then helicopters don't fly.

Tsevion,

Sorry. Couldn't pass up the opportunity

Cheers,

-Slashy

[GoSlash27]

hmm, only 52,500m.

"Only", he sez... Great job!

Best,

-Slashy

[nicky4096]

"Only", he sez... Great job!

Best,

-Slashy

i was trying to get past 55km

thanks anyway