Stratolaunch adds Boeing 777-200ER as third air‑launch platform
Based on · First reported
Sources

- Stratolaunch has acquired a Boeing 777‑200ER to serve as its third air‑launch platform, expanding its fleet for hypersonic flight testing.
- The aircraft will be modified with multiple pylon attachment points for Talon‑A hypersonic vehicles and other test systems, and the company expects the new 777 to raise its total flight capacity by about 35% and enable simultaneous test campaigns at different locations.
- The modified 777 is slated to enter service in 2027.
Why it matters
The addition of a larger, multi‑pylon platform could allow Stratolaunch to run more hypersonic test programs concurrently, potentially accelerating development cycles for customers.
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