My math-fu is weak

[aramis]

The total lift is found by inverting 2% over the displaced air mass; that is, with TNE/T4 style CG, the lift is 50x the displaced atmosphere, since 50/1 is the inverse of 1/50, and 1/50=2%, the effective weight of a craft under CG. The data is from the links I provided earlier.

In short, ships don't float with the 98% gravity disconnect of TNE/T4 FF&S designs. But they do make it to orbit on a lot less fuel.

The metric version of the balloon lift page's equations is just a conversion, with rounding for simplicity. Finding P or any given altitude is a royal pain.

 

[shadowdragon]

[FONT=arial,helvetica]Weighted average method...
CO2 45%, 45x1.59=71.55
NO 20%, 20*1.037=20.74
SO2 18%, 18*2.264=40.75
He 10%, 10*0.138=1.38
H2 4%, 4*0.0696=0.2784
Trace 3%, 3*? (~1)=0.03


ah talking about THOSE numbers?
[/FONT]

 

[aramis]

[FONT=arial,helvetica]Weighted average method...
CO2 45%, 45x1.59=71.55
NO 20%, 20*1.037=20.74
SO2 18%, 18*2.264=40.75
He 10%, 10*0.138=1.38
H2 4%, 4*0.0696=0.2784
Trace 3%, 3*? (~1)=0.03


ah talking about THOSE numbers?
[/FONT]

Those are relative to Air; air at STP being 1.0.

From this table, which, being relative to air at STP, is unit agnostic.

 

[ThunderChilde]

Shadow, my post wasn't meant as an attack, I was genuinely flabergasted to be reading this whole thread. My dyslexic Math-Fu is theory strong and execution poor, this has been an excercise in making my Brain into an oatmeal like morass. Sorry if my post was shaded by my addled and frustrated mental state.

I couldn't have been more surprised to see that there was a spirited discussion of what seemed to me to be an obscure element of a single scene involving this level of math and physics.

I have been away from Trav since early non-errata Mega, there is a lot I am quite clueless about, heplar is some kind of a fusion drive right?

 

[shadowdragon]

thunder i didnt take it as an attack- sorry if i came across snarky. i was just giving you as complete an explanation as i could as to why i was tackling this thing head on when it really, in the grand scheme of the game, isnt all that important. it boils down to "because i think that level of assinine detail is FUN" when its all said and done. :devil:

and because some rat-bastid in my game will want to know if i dont do it.

thanks for your input anyway

HePLAR= (iirc) High Energy Plasma Recombustion- it is basically a plasma/fusion gun used for thrust.

 

[shadowdragon]

ok now that i have that figured out- thank you all for the help, i have a further question. what gasses could be found in a non-standard atmosphere?

i know H2, He, SO2, O3, and a few others, but what else might reasonably be found?

 

[aramis]

Relatively innocuous: N2, NO2, N2O, CO, CO2,

Nasty traces &/or suspended fluids: H2SO4 (Sulfuric Acid), NH3 (Amonia), C6H5OH (Muriatic Acid), HCl (Hydrocloric Acid), HNO3 (Nitric Acid), H2O2 (Hydrogen Peroxide), O2 above 30%StdAtm

Makes pretty aurorae but fairly inert: Ar, Kr, Ne, Xe