The Bell OH-58C “Kiowa” is a two bladed single-engine light helicopter operating under an Experimental Airworthiness Certificate. It can carry two passengers with a flight crew of two. It is powered by a Rolls Royce Allison 250-C20 turboshaft engine that produces 317 SHP at sea level. The maximum weight of the OH-58 is 3,200 lbs. The NTPS OH-58 is instrumented and serves as a flying laboratory with a flight test engineer consoles in the rear. NTPS uses the OH-58 for Performance and Flying Qualities flight test instruction.