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1) Name? General Electric RTV-G-4/RV-A-4 Bumper
2) Design Speed? 5260 km/h (3270 mph)
3) Design Altitude? 393 km (244 miles)
4) Rocket #B-3 was the first to do what? Reached a maximum altitude of 150.3 km (93.4 miles) even though the WAC stage failed.
5) Rocket #B-5 was the first to do what? Correct separation of stages at 32.2 km (20.0 mi) - the upper stage then reached an altitude of 393 km (244 miles) - then a a new record for any man-made object.
6) Rocket #B-8 was the first to do what? First Rocket Launch ever from Cape Canaveral. First launch of a RTV-G-4.
7) Rocket #B-7 was the first to do what? Upper stage ignited properly - achieved a speed of 5260 km/h (3270 mph) - again a record.
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The difference is in Number 4!
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The SD40 is 55 now!
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