Razor

The SM-39 is a next generation air dominance fighter and fighter-bomber. Designed to perform the missions of the F-47, F-22, F-15, F/A-18E/F and the now retired F-14 Tomcat, A-5 Vigilante and A-6 Intruder, the SM-39 is a twin engine, piloted or unpiloted autonomous, low observable aircraft. With two internal weapon bays, all moving horizontal stabilizers with no vertical tail, double slotted flaps with boundary layer blowing, thrust vectoring nozzles and titanium foam metal sandwich construction, the SM-39 is a sixth generation fighter and a direct bridge between atmospheric aircraft and future reusable space fighters.

Of radical planform, the SM-39 is a triple fuselage design featuring a streamlined center, high fineness ratio primary fuselage accompanied laterally by right and left mounted secondary fuselages. The secondary fuselages begin as highly swept wing strakes into which the aircraft wing, empennage, a single ventral air intake and engine nacelle is blended. This planform configuration results in a significant reduction in supersonic wave-drag, allowing the aircraft to have a volume distribution that is very near the Sears-Haack ideal. Designed for supercruise, this configuration places the wing leading edge within the shock cone of the secondary fuselage wing strakes at high Mach numbers.

In addition to reducing wave drag, the SM-39’s triple fuselage design allows for an efficient distribution of primary aircraft systems. The center fuselage houses principal avionics, including the radome and AESA radar, as well as the cockpit, nose landing gear and two internal weapons bays. The secondary fuselages house the engines, main landing gear and fuel.

Pioneering new approaches in aerodynamics, airframe structures, efficient variable cycle turbine propulsion, active low-observability and boundary layer control and integrated avionics, the SM-39 is a Mach 4.0+ fighter capable of level supercruise speeds in excess of Mach 2.5 while maintaining a stall speed as low as 103 KTAS in the landing configuration. With a typical per unit flyaway cost of $85 Million, the SM-39 will be competitively priced and offer significant cost savings over same class aircraft. The SM-39 is now under development and will be qualified and certified to MIL-HDBK-516B Airworthiness Certification Criteria in accordance with AFPD 62-6 and AFI 62-601 at the AFFTC, Edwards AFB.

The SM-39 Razor is a sixth generation twin engine Air Superiority and Air Dominance Fighter. A Penetrating Counter Air solution and Fighter Bomber, the SM-39 is designed for both land and carrier based operations. Powered by two next generation variable cycle afterburning turbofans, the SM-39 will have a maximum level speed in excess of Mach 4.0, a tactical radius greater than 1,100 nm, internal weapons carriage, directed energy weapons, supercruise and super-maneuverability. The SM-39 will replace F-22 Raptors, F-15s, Su-57s and Su-27s. The SM-39 design is currently being optimized for improved high speed aerodynamics, reduced over-pressure sonic boom and enhanced low observability characteristics including active signature reduction.