Launch Costs to LEO Forum: SSI-List
Thread: Launch Costs to LEO
# 15829 byking_rodent@... on Oct. 4, 2001, 10:03 p.m.
Member since 2022-08-22
Doh, I'm an idiot. yes, it is divide not multiply.
1kg = 2571
1kg = 2.2lb
2571/2.2 = 2.2/2.2lb
1168.63(repeating) = 1lb
I had to work out the equasion to prove it to myself.
king_rodent (putting the eek in geek)
"don't let him near the heavy machinery!!!"
> > >
> > > > Check your arithmetic. $2571/kg does not equate to $5669/lb.
> > >
> > > Woops, was using a metric converter that goes out to 16 decim
> > > places. 1kg = 2.2046lb
> > > $18,000,000 / 7000lb = $2571.428571 * 2.2046 = $5668.971425422
> > >
> > > I rounded to $5,669
> >
> > Um, nope, you multiplied the wrong way. You need to divide the
> dollar
> > figure by 2.2046, not multiply. Since 1 kg is 2.2 pounds, you're
> sending
> > more than double the weight (of 1 pound) for just $2571. The
number
> for
> > Soyuz should actually be about $1166. per pound.
>
> Actually, I screwed up twice, it should be $18M / 7000*kg* not lb
> (as listed on the website we were referring to). This makes the
> equasion correct.
> Also, I rounded $2571.428571 (.428571 repeats endlessly) to the
6th
> didgit even though I stated that my converter goes to the 16th
place.