|
|
|
|
Strategic Objective
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National Priority
|
Why NASA?
|
NASA Priority Score
|
|
|
|
|
Capacity
|
Safety and Reliability
|
Efficiency and Performance
|
Energy and the Environment
|
Synergies with Security
|
Support to Space
|
Supporting Infrastructure
|
Mission Alignment
|
Lack of Alternative Sponsors
|
Appropriate Level of Risk
|
Why NASA Composite Score
|
|
R&T Challenge
|
Weight
|
5
|
3
|
1
|
1/4 each
|
|
B1a
|
Quiet propulsion systems
|
9
|
1
|
3
|
9
|
3
|
1
|
90
|
3
|
9
|
3
|
9
|
6.0
|
540
|
|
B1b
|
Ultraclean gas turbine combustors to reduce gaseous and particulate emissions in all flight segments
|
9
|
1
|
3
|
9
|
3
|
1
|
90
|
3
|
9
|
3
|
9
|
6.0
|
540
|
|
B3
|
Intelligent engines and mechanical power systems capable of self-diagnosis and reconfiguration between shop visits
|
3
|
9
|
3
|
3
|
3
|
1
|
82
|
3
|
9
|
3
|
9
|
6.0
|
492
|
|
B4
|
Improved propulsion system fuel economy
|
3
|
1
|
9
|
9
|
3
|
1
|
78
|
3
|
9
|
3
|
9
|
6.0
|
468
|
|
B5
|
Propulsion systems for short takeoff and vertical lift
|
9
|
1
|
3
|
3
|
3
|
1
|
72
|
3
|
9
|
3
|
9
|
6.0
|
432
|
|
B6a
|
Variable-cycle engines to expand the operating envelope
|
3
|
1
|
9
|
3
|
3
|
9
|
68
|
3
|
9
|
3
|
9
|
6.0
|
408
|
|
B6b
|
Integrated power and thermal management systems
|
3
|
1
|
9
|
3
|
3
|
9
|
68
|
3
|
9
|
3
|
9
|
6.0
|
408
|
|
B8
|
Propulsion systems for supersonic flight
|
3
|
1
|
3
|
1
|
9
|
9
|
50
|
9
|
9
|
3
|
9
|
7.5
|
375
|
|
B9
|
High-reliability, high-performance, and high-power-density aircraft electric power systems
|
1
|
3
|
9
|
3
|
3
|
3
|
62
|
1
|
9
|
3
|
9
|
5.5
|
341
|
|
B10
|
Combined-cycle hypersonic propulsion systems with mode transition
|
1
|
1
|
3
|
1
|
9
|
9
|
40
|
9
|
9
|
3
|
9
|
7.5
|
300
|
|
B11
|
Alternative fuels and additives for propulsion that could broaden fuel sources and/or lessen environmental impact
|
3
|
1
|
3
|
9
|
3
|
1
|
60
|
3
|
3
|
3
|
9
|
4.5
|
270
|
|
B12
|
Hypersonic hydrocarbon-fueled scramjet
|
1
|
1
|
3
|
1
|
9
|
9
|
40
|
9
|
3
|
3
|
9
|
6.0
|
240
|
|
B13
|
Improved propulsion system tolerance to weather, inlet distortion, wake ingestion, bird strike, and foreign object damage
|
3
|
9
|
3
|
1
|
3
|
1
|
76
|
3
|
3
|
3
|
3
|
3.0
|
228
|
|
B14
|
Propulsion approaches employing specific planetary atmospheres in thrust-producing chemical reactions
|
1
|
1
|
1
|
1
|
1
|
9
|
26
|
3
|
9
|
9
|
9
|
7.5
|
195
|
|
B15
|
Environmentally benign propulsion systems, structural components, and chemicals
|
1
|
1
|
1
|
9
|
3
|
1
|
44
|
3
|
3
|
3
|
3
|
3.0
|
132
|
|
B16
|
Reduced engine manufacturing and maintenance costs
|
3
|
3
|
3
|
3
|
3
|
1
|
52
|
3
|
1
|
1
|
3
|
2.0
|
104
|
