16.
Static ports (both sides) = The static port is a small air inlet, usually located on the side of the aircraft, flush against the fuselage. The static port measures static (non-moving) air pressure, which is also known as ambient pressure or barometric pressure.
17. Pitot tubes = A pitot (/ˈpiːtoʊ/ PEE-toh) tube, also known as pitot probe, is a flow measurement device used to measure fluid flow velocity. … It is widely used to determine the airspeed of an aircraft.
18. Static ports (both sides) = see description above.
19. Radome = A radome (which is a portmanteau of radar and dome) is a structural, weatherproof enclosure that protects a radar antenna. … When found on fixed-wing aircraft with forward-looking radar, as are commonly used for object or weather detection, the nose cones often additionally serve as radomes.