NWUAV Propulsion Systems Northwest UAV A GLOBAL COMPANY Supporting The War Fighter Since 2005 with Aviation Grade Propulsion Systems NW-230 Heavy-Fuel Engine MADE IN THE USA Purpose-built for Heavy-Fuel Designed for Group III Unmanned Aircraft in the 90-160 kg range. With an emphasis on high TBO, minimal maintenance cycles and high endurance with minimal fuel burn. NW-44 FUEL INJECTED HEAVY-FUEL ENGINE 18-34Kg UAS NW-88 TWIN-CYLINDER HEAVY-FUEL ENGINE 34-68 Kg UAS +1 (503)434-6845 www.nwuav.com winglets to maintain the aerodynamic profile and keep the antennas spaced apart to optimise radio-frequency (RF) performance. However, the empennage provides additional locations suitable for antennas and data-link equipment. “As far as space for mission systems goes, the payload bay under the fuselage serves as this wide-open, customisable sandbox – the aircraft is called Integrator for a reason,” Todorov muses. “Including the two main bays, there are five locations where we tend to mount payloads, and like ScanEagle, we can also engineer slices to modularly add on different sensors, data links, transponders and what have you.” Both UAVs are mainly constructed using carbon fibre-reinforced plastic, and such is Insitu’s long history of working with such composites that it has amassed a diverse supply base for carbon parts. As with many of its subsystems, local suppliers generally form the first port of call for carbon fibre, and Pearce points to Decavo, Carbon by Design and Sekisui as some US-based suppliers that Insitu uses. Mission systems ScanEagle’s fuselage has a diameter of roughly 7 in (17.78 cm), so any sensor that can fit within that width can be installed at either the nose payload bay or in a slice module, so long as the slice maintains some empty space inside for routing wires and fuel lines, as well as for integrating ballast if needed to keep the CoG or CoB steady. “Sometimes we need to do OML modifications, depending on the payload. For instance, ScanEagles sometimes fly with the NSP-3 synthetic aperture radar from IMSAR, and we can’t cram all of its components into a 5-7 in slice,” Hartley says. “So, instead, we hang its radar pod below the fuselage, with some of the core control electronics in a dedicated slice.” The payload philosophy and history around Integrator is similar to ScanEagle’s, albeit with the addition of the rectangular, secondary payload module, which helps cater for the +1 (503) 434-6845 | www.nwuav.com Supporting The War Fighter Since 2005 with Aviation Grade Propulsion Systems Northwest UAV AVIATIONGRADE AMERICAN MADE NW-230 Heavy-Fuel Engine NW-44 FUEL INJECTED HEAVY-FUEL ENGINE 34-68 Kg UAS 18-34 Kg UAS NW-88 TWIN-CYLINDER HEAVY-FUEL ENGINE DEFENSE CONTRACT AUDIT AGENCY COMPLIANT Designed for Group III Unmanned Aircraft in the 90-160 kg range. With an emphasis on high TBO, minimal maintenance cycles and high endurance with minimal fuel burn. • Purpose-built for Heavy-Fuel • MADE IN THE USA
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