Toy or cartoon scale? Toys have them as 15' giant battle armor type things. The show started a little larger, then eventually just had them standard human size. Sandra was I believe in the next wave that was never released. There's sketches of her or maybe a prototype?

I do remember the cartoon Earth Corps suits being basically just suits, whereas the toys had weird proportions relative to the helmet-less heads. I couldn't wrap my head around how Herc's head could be so small, yet those were supposed to be his working hands? 😆