the climbing rate gauge should have HUGE variations caused by atmosphere

[raaaid]

well but at least you agree with me that altitude needles in the game should oscilate and the climbing rate one a lot

[5./JG27.Farber]

Was there not German method where the needles didnt jump around? - electrical gauges or something? In clod V1 the red sides needle used to jump around but the reds whined till it was fixed. Even though as you say it was realistic........... So it was there but they took it out because a vocal part of the red side didnt want that realistic factor.

[jcenzano]

Originally Posted by raaaid

well but at least you agree with me that altitude needles in the game should oscilate and the climbing rate one a lot

pitot-static VVI´s do not oscilate a lot, but they have LAG and they are somehow sluggish.

Originally Posted by raaaid

if i were to build a climbing rate gauge i would do it base on vertical angle of heading and air speed

and can you tell me how would you build a VVI gauge based on these with WWII technology???

because to get a "highly acurate" verical angle of climb/descent you need an INS or a pretty good attitude indicator and they did not have neither of these back then

on the other hand your "inquietudes científicas" generate pretty interesting posts

As a pilot I can say I haven't really noticed any wobbly oscillations of a VSI ... ever. Atmospheric pressure variances do not occur with the great horizontal or vertical rapidity that would be required to make it do so. Remember, it's just a bourdon tube with a calibrated leak.

[gabuzomeu]

By the way, the same scientific maffia introduced gyro scop driven artificial horizon, while a glass of water is a good reference for horizontal in daily experience...

[janpitor]

Originally Posted by gabuzomeu

By the way, the same scientific maffia introduced gyro scop driven artificial horizon, while a glass of water is a good reference for horizontal in daily experience...

Try the glass of water in a turn and you will see why this principle is not used

[raaaid]

Originally Posted by janpitor

Try the glass of water in a turn and you will see why this principle is not used

neither the gyro work on this conditions due to precesion

well i admit i was wrong if it works dont cahnge it though find it surprising, i guess they dont oscilate to the price of precision

[5./JG27.Farber]

Just totally ignore me...

I guess you guys were not there.........................................


mazex - what about that radar / command fighter thing your too busy to work on? any news?

[IvanK]

Why Water couldn't be used a Bob Hoover classic:

[SQB]

Originally Posted by IvanK

Why Water couldn't be used a Bob Hoover classic:

(video here)

Dangit, you beat me to it! This video demonstrates that non-aerodynamic (simple relative mass * gravity systems) do not give correct readings of attitude and roll. Precession, while annoying for sure, is *extremely* minor when compared to this. Gyroscopes can be re-centred using balance magnets, negating the effects of precession anyway.

To answer Raaaids initial question, I ask you "how would you, using as simple a device as possible, figure out what components of any vertical incoming air is wind (which can be much faster than 20km/h (~5ms^-1) at higher altitudes) and what is the climbing rate." Remember that in normal flight (i.e. when you are actually looking at the climbing rate gague) you climb or descend at ~2-5 thousand feet per minute which is ~25.5ms^-1, not too different from your conservative estimation of wind.


Also, using a pressure based system, pressure changes by ~33hPa per thousand feet, whereas the most brutal low fronts will change pressure by 10-15hPa over the course of several hours. Small variations in pressure at ground level have surprisingly large effects, so it's easy to forget that by climbing in an a/c you travel through a huge range of pressures.