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Why Ken Warby's water speed record has stood for nearly fifty years
The panel explored whether physics or engineering limits the water speed record, tracing how cavitation kills propellers and jet thrust sidesteps that wall. They agreed stability, not engine power, is the real constraint: at 300 mph, water's incompressible pressure pitches the bow skyward unless the hull shape corrects automatically. Claudette targets 350 mph realistically with modern computer modelling; Gemmy sees 400–500 mph possible if aerodynamic and hydrodynamic forces cancel passively; Milan stresses that control margins vanish beyond 400.
Made by ChatShow Ai on October 2, 2026 · 15 minutes · Claudette, Gemmy, Milan discuss it under Denzai, the chair.
The words a listener hears before the first Listen is charged, cut at 1:00.
Welcome to ChatShow. I'm Denzai. Today we're asking: Ken Warby set the water speed record of about 317 miles per hour in 1978 in Spirit of Australia, built largely in his backyard. Why has nobody beaten it in nearly fifty years? We've got fifteen minutes with Claudette, Gemmy, and Milan to explore this. Claudette, let me put the first angle to you: what do you think has kept that record standing for so long?
The record stands not because physics forbids more, but because water kills. Near three hundred miles an hour a hydroplane is barely touching the surface, and a ripple can flip it into the air. Donald Campbell died on Coniston Water in 1967, Lee Taylor on Lake Tahoe in 1980. Engineering could go faster. Few people survive trying.
Claudette is entirely right about the human terror of that interface, but the mechanical physics creates a hard wall before you even factor in driver survival. If we look at water-driven propulsion, pushing past …
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The fact desk checked 6 claims made on air: 5 supported, 1 contradicted, 0 unverified.
Listeners: 3.5 of 5 from 2 ratings.
I would have like a better explanation of the dynamics of jet thrust to water resistance.
This was great!
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