Table:
0
A
B
C
D
E
F
G
H
1
Engine
Power, continuous
Critical altitude This is the highest altitude at which the engine can achieve its full continuous power rating. Above this altitude, power falls off with height as with a naturally aspirated engine . See Supercharger#Altitude effects for details.
Power, takeoff
Compression ratio
Supercharger gear ratio
Octane rating
Dry weight
2
Wasp Jr. A
hp (kW) at 2,000 RPM
sea level
same
5.0:1
7:1
68
lb (kg)
3
Wasp Jr. TB
hp (kW) at 2,200 RPM
sea level
hp (kW) at 2,300 RPM
6.0:1
8:1
80
lb (kg)
4
Wasp Jr. SB
hp (kW) at 2,200 RPM
ft (m)
hp (kW) at 2,300 RPM
6.0:1
10:1
80/87
lb (kg)
5
Wasp Jr. T1B2
hp (kW) at 2,300 RPM
ft (m)
same
6.0:1
10:1
80/87
lb (kg)
6
Wasp Jr. B4
hp (kW) at 2,300 RPM
ft (m)
same
6.0:1
10:1
80/87
lb (kg)

Questions and formulas:
Question: What was the compression ration when the engine was Wasp Jr. T1B2?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,A1="Wasp Jr. T1B2"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H6,A2:A6="Wasp Jr. T1B2"),5))
Level: medium
Question: What is the compression ration when the continuous power is hp (kw) at 2,200 RPM and the octane rating is 80/87?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,(B1="hp (kW) at 2,200 RPM")*(G1="80/87")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H6,(B2:B6="hp (kW) at 2,200 RPM")*(G2:G6="80/87")),5))
Level: medium
Question: What is the compression ratio when the continuous power is  hp (KW) at 2,200 RPM and the critical altitude is at sea level?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,(B1="hp (kW) at 2,200 RPM")*(C1="sea level")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H6,(B2:B6="hp (kW) at 2,200 RPM")*(C2:C6="sea level")),5))
Level: medium
Question: When the engine is Wasp Jr. T1B2, what is the number needed for takeoff power?
Formula: ROWS(UNIQUE(FILTER(D1, A1="Wasp Jr. T1B2")))
Formula2: ROWS(UNIQUE(FILTER(D2:D6, A2:A6="Wasp Jr. T1B2")))
Level: medium
Question: When critical altitude is sea level, what is the compression ration for a supercharger gear ratio of 7:1?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,(C1="sea level")*(F1="7:1")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H6,(C2:C6="sea level")*(F2:F6="7:1")),5))
Level: medium