Then you're missing the SPAD combat planes for affordable flying and good flying combat planes. The only thing they lack is third generation durability of the new, modern, top of the line combat ships that really are more surf boards then light flimsy things like the Gremlin. They assemble faster, bounce better and have an overall lower investment cost then the Gremlin.

For under 30 size, build a HOR or Sickle or one of the other Open B designs. I love the Gremlin, but I got tired of watching them disappear in a snow shower.