On 28Jun2020 2329, Alex Goodwin wrote: > Depending on relative costs, I (reaching somewhat) could see a case for > continued J-8/J-9 use despite H-1 being available, because of quantum. > > MGT2 lets you build jump drives at higher TL than their base and (for a > cost premium) reduce the fuel burn. IIRC, reduction is in steps of 5% > of total fuel burn, and tops out at 15%. A J-8 drive could thus burn > only 68% of ship's displacement (at +3 TL to the J-8 base), and a J-9 > drive would burn 76.5% of ship displacement. > > I did say I was reaching. TL17+ jump drives in MegaTraveller consumed less fuel. Normally they consumed (Jn+1)x5 percent of the ship's volume. At TL17 it dropped to x4, at TL18 to x3, down to a minimum of x1 at TL21+. TNE used the same basic consumption as MT (but without higher efficiency at TL17+), and pointed out that this meant that high jump rated drives used less fuel on short jumps than low rated drives. -- Rupert Boleyn <xxxxxx@gmail.com>
