★ FAMOUSSpace & science
Stratolaunch Roc
The widest aircraft ever built — a twin-fuselage giant that launches rockets
Tail number N351SL

The story
The largest wingspan of any aircraft ever flown — 385 feet, wider than a football field is long. Roc is two fuselages sharing one colossal wing, built to carry hypersonic test vehicles to launch altitude. It flies rarely, from Mojave, and every flight is an event.
Fun fact
Roc's wingspan beats the Spruce Goose by 65 feet — and it taxis on 28 wheels.
Quick answers
What is the tail number of Stratolaunch Roc?
N351SL (Scaled Composites 351).
What kind of aircraft is Stratolaunch Roc?
Scaled Composites 351.
Is it still flying?
Yes, it is still active.
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Bogey · free on iPhone and Android
Will Stratolaunch Roc cross your map?
Famous airframes wear a gold star on Bogey's live map. If this one flies near you, tap it and it joins your collection with its story.
- A live map of every aircraft around you, at its real position.
- Tap one and it flips into a trading card: type, airline, route, photo.
- Catch rare ones. Build a collection. Climb the leaderboard.
