BAe Sea Harrier - Technical data and discussion

[ron_23]

@MatrixRupture

a 45 degree nozzle angle does…

your own doc dissagrees with you

at a 45° angle you get more than 20000 lbs of force

whats 70% of 20k lbs?

~14000 lbs

you notice how it never equals 20k lbs of force unless the nozzel is at eithe 0° or 90°

@Necronomica

A 45 degree offset produces a thrust vector 0.707 timers that of the total thrust.

the horizontal will be 70% of the total and the vertical will also be 70% of the total.

[MatrixRupture]

In game all it does is impart some of the Net thrust downwards

[MatrixRupture]

@Flogger_cbs

he would explain how the Harrier manages to perform a short takeoff at all.

Marketing lies the harrier cannot produce 1-1.5 times its wait in thrust according to the devs

[Nowel]

@MatrixRupture

In game all it does is impart some of the Net thrust downwards

The only downwards force is gravity, the lift is an “upwards force”, you can see that with the direction of the diagram

[MatrixRupture]

Its throwing thrust down pushing the aircraft up

[Morvran]

Yeah, that is rather dumb, the harrier has a reputation for defying conventional laws of aerodynamics

Spoiler

[Flogger_cbs]

@Nowel_

To it is added to the lift of the aircraft, but you esencially reduce the foward thrust of the plane, his point is about this foward motion

@FeetPics

In this configuration we have a plane with a thrust loading of 0.81lbs and a wing loading of 85lbs per square foot.

So wing loading and its induced drag are quantities we can just neglect? Because the vector of the vertical thrust component is close to the lift vector, meaning that deflecting the nozzle downward will also start to unload the wing.

[Necronomica]

@MatrixRupture

A 60 degrees nozzle angle does not equate to a 50/50 split in the total power output acting on both the horizontal and vertical vectors

a 45 degree nozzle angle does…

Correct, but that’s not what he or i have been saying. At 45 deg both of the vectors will be 70% the length of the resultant thus be of equal length and have a 50/50 split. At 60 degrees one of the vectors will be 50% the length of the resultant and the other will be 86,6% the length of the resultant. The split at 60 degrees will be approximately 58/42 .

Do you see how “split” and “percent of the resultant” are two different things ?

@MatrixRupture

He said before that at 60 degrees of nozzle 50% of the power would be applied horizontally

This is correct.

@MatrixRupture

so naturally the other 50 is vertical. That’s just wrong.

Correct, that statement is wrong, there is no “other 50%” because that’s not how you calculate that, it’s not a+b. I also have not seen him claim this.

I’m starting to wonder if this is a language barrier thing.

[Nowel]

@MatrixRupture

Its throwing thrust down pushing the aircraft up

Thrust is a reactive force, you “throw” air back which generate trust fowards

[MatrixRupture]

Here you go if you have a right angle with equal sides and you lay it down and apply force where does that force go

@Necronomica

it doesn’t end up like this

[ron_23]

@Necronomica

I’m starting to wonder if this is a language barrier thing.

its not, english is his first language

[MatrixRupture]

@Necronomica

This is correct.

no

[ron_23]

notice how it dosent add up to 20k lbs

almost as if thats what @Necronomica has been saying

[MatrixRupture]

congratulations, at 45 degrees nozzle angle the two forces are equal

[ron_23]

this is exactly what you have called @Necronomica a troll for

exactly what he has been saying

@Necronomica

A 45 degree offset produces a thrust vector 0.707 timers that of the total thrust.

the horizontal will be 70% of the total and the vertical will also be 70% of the total.

@MatrixRupture

great buddy you are a troll.

[Necronomica]

They are yes, but are they 50% of the total? no. they are about 70% of the total, both of them.

[MatrixRupture]

making them equal

[Morvran]

Anyway, back to watching this thread rather than taking part:

I dont have the energy at the moment

[ron_23]

like even his doc has been saying that

[ron_23]

@Necronomica

the horizontal will be 70% of the total and the vertical will also be 70% of the total.

thats what he has been saying

hello reading comprhension?