VERTICAL TAKE-OFF / LANDING (VTOL)
Series has a tactical capability to take-off and / or land vertically, a quality commonly associated with helicopters.
RADAR-CAPABLE
Houses, or can house (through specialized variants), radar equipment for searching, tracking, and engagement of enemy elements.
MULTI-ENGINE
Incorporates two or more engines, enhancing survivability and / or performance.
MIXED-POWERPLANT
Utilizes two or more types of propulsion systems to achieve desired performance / flight actions.
DIRECTIONAL THRUST
Engine outlet(s) designed to direct thrust to certain angles, achieving enhanced agility.
HIGH-SPEED PERFORMANCE
Can accelerate to higher speeds than average aircraft of its time.
HIGH-ALTITUDE PERFORMANCE
Can reach and operate at higher altitudes than average aircraft of its time.
EXTENDED RANGE PERFORMANCE
Capability to travel considerable distances through onboard fuel stores.
SUPER PERFORMANCE
Design covers the three all-important performance categories of speed, altitude, and range.
MARITIME OPERATION
Ability to operate over ocean in addition to surviving the special rigors of the maritime environment.
ENCLOSED CREWSPACE(S)
Features partially- or wholly-enclosed crew workspaces.
UNMANNED OPERATION
Design features ability to fly sans pilot, actions controlled onboard through programming and / or ground-based operator.
AUTONOMOUS OPERATION
Design features autonomous flight operations made possible through onboard artificial intelligence or pre-programming.
United States (possible)
