After one J. Kerman requested a "fast boi plane", we developed this monstrosity. The spearfish can reach up to 5400 knots ground speed @70 000ft! That's over mach 8!
Instructions:

Can land or take-off from:
Avalanche
Bandit
Wright
Yeager

Flight plans:

Bandit-Wright
Take off, Head straight, turn left slightly when you see a small Island Which looks like the letters C and D. Once you see the wright isles, choose if you want to land on North, Next to Uss tiny or Wright Airport.

Avalanche-Avalanche
Take off from Avalanche, head towards the Ice base, and dodge missiles (throttle at 60%). Fuel less than 5%? head back to Avalanche and land
Flight Guide:
1. Throttle to 2-10%
2. Pitch up slightly
3. To speed up, Trottle to 100%
4. Cruising- Throttle to 80%
5. Landing- Select landing place (Water around USS tiny, wright, Yeager, Bandit)
6. Throttle to 15%, head towards Landing site
7. Once on final approach, set Throttle to 2%
7b. If landing on runway, deploy gear under 350 knots
8. Flare
Tip: if you're in a spin, pitch down until you're spinning in the pitch axis. After that, pitch in the opposite direction of your spin.