EST9722
Rocket Kit Overview
Reach New Heights
Take your launches to the next level with the Estes Pro Series II™ So Long rocket. Engineered for extreme altitude flights, this two-stage powerhouse can soar to an incredible 3600 feet—that’s more than two-thirds of a mile! Built for experienced rocketeers, the So Long combines raw performance with sleek, high-impact styling.
About the Pro Series II™ So Long
Record-Breaking Performance
The So Long is designed for advanced flyers who want serious altitude. Its two-stage configuration, powered by E16 and F15 engines with compatible boosters, delivers dramatic liftoffs and thrilling climbs. Whether you’re running experiments or simply chasing the rush of flight, this rocket provides repeatable, high-energy excitement.
Thoughtful Build & Reliable Recovery
With laser-cut balsa fins and a straightforward construction, assembly is engaging without being overly complex. The bold black, white, and orange color scheme stands out in the sky, while dual fluorescent orange streamers ensure fast visibility during descent. A spacious payload bay offers room for experiments or custom gear on your highest flights.
Key Features
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Flies to altitudes of up to 3600 feet (1097m)
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Two-stage engine design for maximum power
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Large payload compartment for experiments or add-ons
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Dual orange streamers for quick and easy recovery
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Precision laser-cut balsa fins for durability
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Includes waterslide decals for a custom finish
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Rated for advanced skill level hobbyists
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Rugged yet simple construction makes it enjoyable to build
What’s Included
Additional Items Required
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Pro Series II™ Launch Controller
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Pro Series II™ Launch Pad
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Pro Series II™ Recovery Wadding
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Recommended adhesives and tools: epoxy, yellow glue, clear tape, hobby knife, sandpaper, masking tape, scissors, pencil, ruler
Specifications
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Length: 46.2 in (117.3 cm)
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Diameter: 1.21 in (31 mm)
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Weight: 5.75 oz (163 g)
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Max Altitude: 3600 ft (1097 m)
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Launch System: Porta-Pad E
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Recovery System: 18 in (45.7 cm) parachute
Recommended Engines
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Single Stage: E16-6, E16-8, F15-6, F15-8
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Two Stage Rocket: E16-8, F15-8
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Two Stage Booster: E16-0, F15-0
Notes:
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Recommended for ages 10+ (adult supervision advised for those under 12).
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Images shown are of the completed model. Assembly required—paint, adhesives, and hobby tools are not included.
EST9722
