USS Helios

The USS Helios is a helium tanker from an alternate timeline where Earth has started building gigantic airships again, some of which are many times the size of the Hindenburg. The only place to get enough helium for these behemoths would be the sun.

Design
The USS Helios is built around a Miranda-class body. At the aft end is a mechanism for attaching an enormous helium tank. The warp nacelle at the top has a special collector that can collect hydrogen for fuel, and helium for the airships. The ship's hull is made of a material called asbestium. Asbestium is so incredibly heat-resistant that it won't melt, no matter how hot it gets. However, despite this, the Helios has heat shielding to prevent the crew from being roasted alive.