lamontagne: small Avalon-type sun-pointer and hotel stations (2023–2026)

Design summary

Small Avalon-type LEO station. 100 m diameter, 3.3 rpm, 0.6 g, in LEO. It points at the sun, with a counter-rotating water-filled mass at ~10 rpm (~28% of station mass) lamontagne, 2023-11-16; lamontagne, 2023-11-16; lamontagne, 2023-11-16.
~20,000 t total; 1 m reserved space for shielding, insulation, structure and air.
The hull is 3 cm of CFRP at 1500 MPa, SF 4, × 1.8 for secondary structure lamontagne, 2023-11-18. Artificial lights reach 50 m lamontagne, 2023-11-17.
Twark_Main: the mass fraction is ~28%; the 1988 NASA study used 1300 t at 10 rpm Twark_Main, 2023-11-16.
Hotel business plan. A smaller space hotel like a Cuban hotel, paying back in ~3 years at high occupancy lamontagne, 2024-03-03. Tourism ROI analysis lamontagne, 2022-10-16.
Two habitat rings plus a non-rotating addition as the base for building a larger hotel (2025) lamontagne, 2026-03-22.
Island Zero support. Renders and analysis for BIS lamontagne, 2026-07-05.

Coastal Ron: the interior view shows the same curvature at 100 m as his Mars-g station Coastal Ron, 2023-11-16.
Lampyridae: daylighting with prismatic glass and aerogel windows Lampyridae, 2023-11-17.

Is a counter-rotating water mass the cheapest way to make a sun-pointer with L = 0?

lamontagne, 2022-10-16 (reply #2114): Tourism ROI. Post.
lamontagne, 2023-11-16 (reply #4350, 2 likes): Small Avalon-type (2 likes). Post. Attachments: Image60_000.png, Image58_014.png.
lamontagne, 2023-11-16 (reply #4351, 1 like): Detail. Post. Attachments: Image53_004.png.
Coastal Ron, 2023-11-16 (reply #4352): Curvature. Post.
lamontagne, 2023-11-16 (reply #4354, 1 like): Counter-rotating mass. Post.
Twark_Main, 2023-11-16 (reply #4355): 28% mass. Post.
lamontagne, 2023-11-17 (reply #4356): Lights. Post. Attachments: 19880010196.pdf, Image58_015.png, Image59_005.png.
Lampyridae, 2023-11-17 (reply #4357, 1 like): Daylighting (1 like). Post.
lamontagne, 2023-11-18 (reply #4359, 2 likes): Hull. Post.
lamontagne, 2024-03-03 (reply #4533): Hotel plan. Post. Attachments: Image43_000.png, Image31_003.png.
lamontagne, 2026-03-22 (reply #5060, 4 likes): Base for larger hotel (4 likes). Post. Attachments: Image11_001.jpg, Image10_000.jpg, Image3_003.jpg, Image53_003.jpg, Image51_001.jpg.
lamontagne, 2026-07-05 (reply #5064, 1 like): Island Zero (1 like). Post. Attachments: Image19.jpg.