Re: Starship Design Question/Taking Damage
There's a variant -1 Ablative on page 78 of H5, referenced on p. 198 of star Hero.
If an attack could do BODY if it rolled well enough, the defense is reduced by 5 AP, whether the attack actually does damage or not.
e.g. 10d6 EB vs. 15 ED Force Field reduces the Force Field by 5 AP per hit.