>
> FWIW. 75 ohm coax runs about 65 picofarad/ meter and 0.43 microhenry/meter
> with a 0.66 c propagation velocity (~5.0 nanosecond/meter).
>
> 50% mechanical efficiency a 1.0 meter long section of 75 ohm coax terminated with a
> 75 ohm "light bulb" pulsed with a string of 60 volt "spikes" at 20 watts/kg force on 1.0 kg mass
> where the Hypocharge of the length of cable (*Q coax ) = CV coulombs
> and (*Q earth) ~ = 13 coulombs:
>
> 20 = V^2/150 Then V = 55 volts and current I 55/150 =0.365 amperes.
>
Switching to a low impedance (1.0 ohms and up) flat transmission line is possible too.
DuPont Kapton (polyimide -269 to + 400 C, dielectric constant 3.4 ) is rugged
and has advantages for forming the pulse line/s on
the walls of your craft as though you were decorating it with wallpaper.
A 12 ohm line sounds good.
Fred
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