Table:
0
A
B
C
D
E
F
1
Engine type
Scenario
SFC in lb/(lbf·h)
SFC in g/(kN·s)
Specific impulse (s)
Effective exhaust velocity (m/s)
2
NK-33 rocket engine
Vacuum
10.9
309
331
3,240
3
SSME rocket engine
Space shuttle vacuum
7.95
225
453
4,423
4
Ramjet
Mach 1
4.5
127
800
7,877
5
J-58 turbojet
SR-71 at Mach 3.2 (Wet)
1.9
53.8
1,900
18,587
6
Rolls-Royce/Snecma Olympus 593
Concorde Mach 2 cruise (Dry)
1.195
33.8
3,012
29,553
7
CF6-80C2B1F turbofan
Boeing 747-400 cruise
0.605
17.1
5,950
58,400
8
General Electric CF6 turbofan
Sea level
0.307
8.696
11,700
115,000

Questions and formulas:
Question: What is the average SFC in lb/(lbf·h) for engines with an Effective exhaust velocity (m/s) larger than 29,553, and a SFC in g/(kN·s) of 17.1?
Formula: AVERAGE(FILTER(C1, (F1>29553)*(D1=17.1)))
Formula2: AVERAGE(FILTER(C2:C8, (F2:F8>29553)*(D2:D8=17.1)))
Level: easy
Question: What is the specific impulse for the engine with a scenario of sr-71 at mach 3.2 (wet)?
Formula: SUMIFS(E1,B1,"sr-71 at mach 3.2 (wet)")
Formula2: SUMIFS(E2:E8,B2:B8,"sr-71 at mach 3.2 (wet)")
Level: easy
Question: what is the average specific impulse for engines that have a SFC in lb/(lbf·h) of 7.95, and a Effective exhaust velocity (m/s) larger than 4,423
Formula: AVERAGE(FILTER(E1, (C1=7.95)*(F1>4423)))
Formula2: AVERAGE(FILTER(E2:E8, (C2:C8=7.95)*(F2:F8>4423)))
Level: easy