1. F/A-18A/B Hornet:
- Mach 1.8 (1,190 mph, 1,915 km/h) at sea level
- Mach 1.75 (1,165 mph, 1,875 km/h) at 40,000 feet (12,192 meters)
2. F/A-18C/D Hornet:
- Mach 1.8 (1,190 mph, 1,915 km/h) at sea level
- Mach 1.76 (1,170 mph, 1,885 km/h) at 40,000 feet (12,192 meters)
3. F/A-18E/F Super Hornet:
- Mach 1.8 (1,190 mph, 1,915 km/h) at sea level
- Mach 1.76 (1,170 mph, 1,885 km/h) at 40,000 feet (12,192 meters)
4. F/A-18G Growler:
- Mach 1.7 (1,135 mph, 1,825 km/h) at sea level
It's important to note that these speeds are subject to various factors such as weight, altitude, temperature, and engine performance. The actual speed achieved in different situations may vary from these maximum values.