Length56.4 m
974 trillionthsMercury orbit radii
10.3Giraffes
84.2Flute lengths
Mk III stretched version
Photo from Wikimedia Commons
SRN4 Hovercraft
The massive cross-Channel air-cushion vehicle/Transportation
The SR.N4 Mountbatten class was the largest hovercraft ever built and operated the cross-English Channel route between Dover and Calais from 1968 to 2000. The craft measured 56.4 m long and 23.8 m wide, riding on a cushion of air contained by a flexible rubber skirt. It could carry 418 passengers and 60 cars at speeds up to 130 km/h, crossing the Channel in about 35 minutes. Four Rolls-Royce Marine Proteus gas turbines provided both lift and propulsion through massive ducted fans.
Measurements
Width23.8 m
119Plier lengths
9.48Phone booth heights
Including side skirts
Height on cushion11.2 m
222AA battery lengths
4.87Porta-potty heights
432 quadrillionthsLight-days
On full air cushion
Maximum mass310,000 kg
620 millionHummingbird eggs
364,706Chipotle bowls
3.8 thousandthsWashington Monuments
Fully loaded weight
Maximum speed36.1 m/s
4.51Rolled bowling balls
7.7 tenthsMLB fastballs
13.4Casual joggers
About 130 km/h
Skirt depth2.8 m
9.7 tenthsCondor wingspans
4.9 hundredthsLeaning Towers of Pisa
Flexible rubber air-containment skirt