S
SLS Block 1
NASA / Boeing·USAExpendable
Specifications
Payload to LEO
95,000 kg
Payload to GTO
27,000 kg
Height
98 m
First Flight
2022
Success Rate
100%
Cost per kg
$40,000
Reusable
No
Operator
NASA / Boeing
Payload Comparison
SLS Block 1 payload to LEO relative to other launch vehicles.
Starship150,000 kg
SLS Block 195,000 kg
Falcon Heavy63,800 kg
New Glenn45,000 kg
Vulcan Centaur27,200 kg
Long March 525,000 kg
Falcon 922,800 kg
Ariane 621,650 kg
Reliability
100%
Highly Reliable
SLS Block 1 has an exceptional track record, making it one of the most reliable rockets in service.
Cost Analysis
Estimated launch costs based on $40,000/kg to LEO.
1,000 kg payload
$40.0M
estimated cost
5,000 kg payload
$200.0M
estimated cost
10,000 kg payload
$400.0M
estimated cost
Higher cost per kg, typically justified by unique capabilities or specialized missions.