Wright R-975 Whirlwind
Performance
Table:
Specifications for different R-975 variants

Engine
Power, continuous
Power, takeoff
Compression ratio
Supercharger gear ratio
Octane rating
Dry weight

R-975E[5]

330 hp (246 kW) at 2,000 RPM

5.1:1
7.8:1
73
635 lb (288 kg)

R-975E-1[7]

365 hp (272 kW) at 2,100 RPM

6.1:1
7.8:1
73
660 lb (299 kg)

R-975E-3[9]

420 hp (313 kW) at 2,200 RPM
450 hp (336 kW) at 2,250 RPM
6.3:1
10.15:1
80
675 lb (306 kg)

Continental R9-A[12]

500 hp (373 kW) at 2,300 RPM
525 hp (391 kW) at 2,300 RPM
6.3:1
10.15:1
91
705 lb (320 kg)

Consulting the table information on 'Wright R-975 Whirlwind' — "Performance" section, give a one-line statement limited to the highlighted cells and format it within the following JSON object {"answer": "YOUR ANSWER"}.