The Silent Hover Bench: The Yard and the Wind Under It

THE SILENT HOVER BENCH · FUTURE VISIONS pp. 119 to 138
A triangle 'about 300 feet in length' that 'made no sound' (p. 134); an object 'hovering silently in the same position for five hours' (p. 124)
held up by moving air, a craft that size throws its weight on the ground as wind: the bench prices the wind, the power, the sound and the hours, and the gas that would float it instead
the book's sentences are reported; the scales, the aircraft, the levels and the airships are tabulated
momentum theory, the hemisphere and E = P t are exact; the mass, the fan fraction and η are dials
no source gives the craft's mass or its power: the bench prints the floor, and a real rotor needs more
stand in the yard · read the wind · hear it · count the hours · fill it with gas · open the file

Evidence

fact ⇄ what kind of claim · live

The book (Lacatski, Future Visions, 2026): the Georgia triangle 'about 300 feet in length', '60 to a few hundred feet above him', 'It made no sound', a yellowish light at each point and a bluish-white one in the middle, stars on the belly (pp. 133 to 134); Niagara's altitudes 'from 500 to over 10,000 feet', 'durations of up to five hours', Cox's five hours, Fabre's 1000 ft, the 1 February clash, 'minimal wind' (pp. 119 to 125)

the book's own words with their pages; nothing added

REPORTED

The Beaufort and Saffir-Simpson tables; the B-2, C-5M, 747-8I, A380 and An-225 weights; the disk-loading table's rotorcraft; the ISA; the sound-pressure table and the measured helicopter levels; the T64 and T406 fuel use, Jet A-1, lithium-ion; the lifting gases, the Zeppelin NT and the Hindenburg; the U.S. Naval Observatory's phase of the Moon, full at 04:01 UT on 9 May 2009, and its place over north Georgia from the site's shared Meeus module, 27° to 29° up in the south-southeast

outside pages named on the File, each figure with its line

TABULATED

Momentum theory: v_i = √(T/2ρA), w = 2 v_i, P_i = T v_i; every band solved into a mass; L_W and the hemisphere; E = P t; V = M / lift

arithmetic on the record and the tables; nothing fitted

EXACT

The mass, the fan fraction and η (no source gives them); no figure of merit, so the power is the floor; heights from sea level; the yard's orientation (no town is named), and so the Moon's bearing to it and where the slab's shadow fell; the yard, the house, the lit window, the porch light, the fence, the tent on the lawn (the book has the son 'camping outside', p. 133), the stars and the lean of grass and trees, staged and illustrative

dials and staging, each named

MODELLED

What the witnesses saw, and what the distance between the sentences and the arithmetic means

the question this bench leaves to you

READING

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