LW aircraft speed specifications

[bongodriver]

So the claim is they were attempting to reach IAS's based on official figures which were actually TAS's, so what official sources were they using and did those sources not explain wether the speeds were IAS or TAS? or are we suggesting they were too stupid to realise they using the wrong speeds?

[Crumpp]

So the claim is they were attempting to reach IAS's based on official figures which were actually TAS's,

Pretty much...

Why don't you explain the German notations to us?

Vw

Vwck

I look forward to hearing it from a "real pilot", LMAO!!

[bongodriver]

Originally Posted by Crumpp

Pretty much...

Why don't you explain the German notations to us?

Vw

Vwck

I look forward to hearing it from a "real pilot", LMAO!!

Aww don't be jealous mate, you might be one one day.

p.s. you wouldn't happen to have a decent answer for the 'rest' of my question?

[JG52Uther]

You two are one step away from a vacation, so cut it out.

[Crumpp]

we suggesting they were too stupid to realise they using the wrong speeds?

So let us all not be so childish or hasty in our judgment of these men. One can be very intelligent and still lack knowledge.



But wait, Sir Sydney Camm is certainly not stupid. In fact he is an extremely intelligent and talented engineer who went on to design such swept wing aircraft as the Hawker Hunter.

http://www.rafmuseum.org.uk/london/c...unter-fga9.cfm

When you consider the fact, no other nation on earth had the depth of knowledge or experience in the transonic realm that the German aircraft industry possessed, you cannot fault the men of other nations for knowledge or understanding that is not in their possession.

Have you researched the Vw and Vwck notations, I would really like to hear your input on this matter!

Maybe if you cannot figure it out, these men were not "stupid" and do not deserve such a label?

[bongodriver]

But hold on a minute here, we aren't talking of entering the realms of transonic flight here, we are simply talking about misinterpreting between IAS and TAS......that doesn't sound credible that they wouldn't be aware there is a difference.

while on the subject of the P.1101.....wasn't it actually very 'useless'

[Crumpp]

we aren't talking of entering the realms of transonic flight here

we are simply talking about misinterpreting between IAS and TAS.

Well, you are pilot.....right??

What do they have in common!!!

[CWMV]

Originally Posted by JG52Uther

You two are one step away from a vacation, so cut it out.

With all due respect, put up or shut up! Lol!

Please, these two just can't controll themselvs.

[Crumpp]

Originally Posted by Crumpp

Nothing??

Really, think about it, every pilot has to account for it in their flight planning.

We will come back to it and here is a huge hint, if you recognize it.

Tell me, what is the difference between these too formula's?

Both formulat's express the same thing.





I am begining to think the men in the VVS were not so stupid, huh!

You certainly cannot explain it and you are pilot, right?

Both forumula's express Vw = V wahr = True Airspeed

This one represents the mathematical expression for True Airspeed recognized and used by the majority of the wartime world:



This one represents the mathematical expression for True Airspeed including
adaptation of the Prandtl–Glauert compressibility correction:



Such was the basis for the post war work on compressibility and compressible aerodynamics.

Since during the war, NII VVS did not have access to classified German research into compressible aerodynamics, their ability to correct Indicated Airspeed to True Airspeed to arrive at the same results as the Germans was limited.

[bongodriver]

Here we go, graphs and equations and name dropping German scientists.....all this fuss for what is simply compressibility error.

interestingly enough compressibility error makes an ASI 'over read' so not sure why compressibility error will have been a factor in the Russians tests not being able to reach speeds.

to this day the simple rule of thumb of 2% indicated airspeed per 1000' of altitude added gives a pretty accurate TAS result.