Design Blueprint: A Fifty-Metre Millimetre-Wave Single Dish: Surface Accuracy, Ruze Efficiency and Beam Size Computed Across the Submillimetre Bands

Design blueprint derived from the source paper (DOI 10.5281/zenodo.24150286): A 50 m single-dish telescope for millimetre and submillimetre astronomy is designed from the physics of its reflecting surface. With an actively controlled surface of 55 micrometres root-mean-square accuracy, the Ruze formula gives aperture efficiencies of 0.57 at 230 GHz, 0.40 at 345 GHz and 0.06 at 690 GHz, an effective area of 782 square metres and a gain of 0.28 K per Jy at 345 GHz. Beam width Status: DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT. All numbers are simulated values from the source paper's computation, deposited with this blueprint as compute.py and results.json. AI-use disclosure: Dave, an AI research system, assisted with the computation and drafting under the author's direction; author of record William Alexander Aldred.