Mk2 - 2.5m part has no lift -- is inconsistent with weight,

[foamyesque]

So this is a really simple error: Somebody forgot to add the LIFTING_SURFACE module to this tank. Other adapters have the same mass as a fuel tank of their capacity does, and other Mk2 spaceplane parts have the same mass as a tank of their capacity + a wing of that lift rating would (1 lift per 0.1t), but the Mk2 - 2.5m adapter has the mass of the latter with no lift. I assume, therefore, it was intended to have a lift rating of 0.7.

[Sharpy]

All Connector pieces (conversions between various sizes) have around 8:1 wet:dry mass ratio. This tank does too. It has worse dry mass than a dedicated tank not because it's MK2 which have wing area, but because it's a connector, with two different sizes on two ends. And with its shape it would have very poor lift properties...

[foamyesque]

Yeah I realized that later when I took a closer look at some of the other adapters. I'm a goofball. :v