Unlike most other freighters, which are often specialised to transport one exact cargo, this ship transports almost everything. Spacious cargo holds, giant tanks for any fluids, two hangars for smaller ships all together form unlimited possibilities of freight.
Add to that ability to connect with almost any type of ship due to various anchoring points, ability to refuel most ships, and you get simply flying supermarket.
Underside was build to be as good as the "upperside". The whole model is based on spine with studs on 2 sides and 2 clear sides, then encased with typical brick-based shell. However do not think that building it was easy, asymmetry generates lots of problems :)
The only one part that I do not like so much. The spine idea worked nicely for 54 studs of the ship; however installing engines proved to be a serious pain. I ended up with that, which is clearly not what I wanted.
this swiss fleet of yours is really nice...specially the microscaled ships...check out my homeworld microscale ships if you have time ...its basically the same idea and scale but the looks are very different that s why i think its interesting!;)
great job again...(i like the hangars ...but prefer mine :p )