Kingda Ka: America's Tallest, Fastest Roller Coaster

Kingda Ka at Six Flags Great Adventure (Jackson, New Jersey) holds the dual crown for the United States:

• Tallest: 456 ft (139 m) — top hat tower.
• Fastest: 128 mph (206 km/h) — hydraulic launch in 3.5 seconds.

Ride Profile

• Type: Strata Coaster (Intamin Accelerator Coaster).
• Layout: Launch → 90° ascent → 456 ft top hat → 90° descent → 270° spiral → 129 ft camelback hill → brake run. 50.6 sec duration.
• Train: 4 cars × 4 riders = 16 per dispatch. Over-the-shoulder restraints.
• Height Requirement: 54" (137 cm).

World Context

• Tallest in world: Yes (since 2005).
• Fastest in world: Yes (since 2005). Formula Rossa (Ferrari World Abu Dhabi) = 149 mph but launched on flat track, not a coaster hill.
• Only strata coaster in Western Hemisphere. (Top Thrill Dragster, Cedar Point = 420 ft / 120 mph, 2003–2021, now reimagined as Top Thrill 2).

Experience

Intense positive Gs (base of tower), sustained weightlessness (top hat), high-speed transition, ejector airtime (camelback). Over in <1 minute. Reliability issues (launch complexity, wind sensitivity) cause frequent downtime.

Runner-Up (US)

• Top Thrill 2 (Cedar Point): 420 ft, 120 mph (reopening 2024 as LSM multi-launch).
• Superman: Escape from Krypton (SFMM): 415 ft, 100 mph (reverse freefall, not full circuit).
• Fury 325 (Carowinds): 325 ft, 95 mph — best complete-circuit giga coaster.

Kingda Ka is a statistical monument — a single, perfect energy conversion. Ride it for the record; ride Fury 325 for the coaster.