Engines upgrade gives more defense to your planes. They stay for less time in enemy AA defenses attack range and thus, take less damage.1) Why is the Aurora and B-3 exempt from receiving the Engine Upgrade, thus making them the slowest aircraft in the player's arsenal? Does it have to do with the fact that both aircraft become slower after dropping their respective payloads?
Aurora and Wyvern are completely different. They are simply invulnerable until they drop bombs. So, this upgrade is almost useless.
Ah, figured it was something like that. Just thought I'd ask to be safe, thanks.
On another note, relating to Air Force General why not have a Big Plane that's like the ECM drone you get at Rank 3? Specifically, the SR-71. Stealth, speed without Straightflow Engine upgrade would be on par with the Aurora and B-3, with upgrade making it the fastest plane for the Airforce. It is not Supersonic for this reason, despite the original being supersonic. Detects All Stealth units, diverts missiles, and has a Laser designator. Draw backs being, its as Rank 5 aircraft, costs as much as the B-3 and needs the Strategic Uplink building before it can become unlocked.