Construction Stats for FTWB-1, 2

Mass per Nacelle: 56,167.5 mt
SS per Nacelle: 2.3
D per Nacelle, 4/1, 5/1, 6/1: (11.5, 9, 7.5) (12, 9.5, 8)
CCR: M-6/M-6/M-7A/M-8A
MPR: 3/1 to 5/1 (VII-X), 4/1 to 6/1 (IX-XII), 5/1 to 7/1 (XII-XV), 6/1 to 8/1 (XIV-XVI)
Power Provided: 32, 34 ea
Stress Charts: B/D, C/E, D/F, E/G
Cruising Speed: Warp 12/11/11/11
Emergency Speed: Warp 14/13/13/13

This was for the missing FTWBs, like with the FP-8, FP-9 and FSR, FASA subtlely Implied that it was there, but never showed it through the duration of their entire license. The FTWB-1 is on the Wolfram, Bachman, and some other Interim Era 2Xs and 2Xl ships.