Unmanned Systems Technology 042 | Mayflower Autonomous Ship | Embedded Computing | ElevonX Sierra VTOL | UUVs insight | Flygas Engineering GAS418S | Ocean Business 2021 report | Electric motors | Priva Kompano

can have problems with smooth running when the engine is idling, at maximum speed or working in low temperatures. “We want this engine to work with different kinds of UAVs, either launching from or flying across different latitudes, altitudes and environments, so a compromise such as this is critical for our approach.” The standard version of the GAS418 is always fitted with an EFI system, and it comes with the single plenum chamber in a central position to deliver air to all four cylinders. “If an engine is carburetted instead of injected, on the basis of our experience it will also be necessary to change the plenum, owing to gasoline vapour condensation issues that occur inside it under some temperature conditions,” Zucchini notes. “The solution is to adopt one carburettor per bank of cylinders, with as short an intake manifold as possible. These two carburettors sit atop the block, aligned with each head. Their charge enters each cylinder from an induction inlet next to the injector, and each carburettor has a servo actuator that serves to open or close the induction inlet.” The fuel pump meanwhile is installed on the back of the GAS418S if the engine has been installed horizontally, where its driven gear and clutch are turned via a gear on the crank. In vertical installations, the fuel pump can be integrated at any custom point that suits the use-case (within reach of the crank via mechanical transmission). Engine management The ECU on the GAS418S is designed to cater for two management strategies, to allow customers to choose which they prefer and also to be able to switch electronically between two sets of embedded engine mappings, be it between or during missions. “The first strategy is speed It took us about 10 years of r&d to devise our valvetrain, to make sure we had something that would meet our needs on lifespan High Power Density • Minimal Maintenance Lightweight • Fuel E cient INTRODUCING THE COBRA AERO A33N GROUP 2 UAS PROPULSION SYSTEM - Designed & Developed to aerospace standards - 2.3kW@ 9000RPM output and 450g/kW-hr BSFC @ 5500 RPM - Low acoustic signature - 250W (400W intermittent) 3-phase generator output - Power4Flight IntelliJect EFI system - Telemetry and control over Serial or CAN - Isolation mount included - Active cooling shroud - Deployed across multiple UAS platforms - Can quickly integrate into any airframe Cobra AERO [email protected] (517)437-9100 Power4Flight [email protected] (541)436-4299 Freely available · Communications specification · User Interface application · Software developers kit Next Genera�on Engine Control for UAS Version 1.9 Released www.power4flight.com [email protected] (541) 436 - 4299 Small Size and Weight 51.4mm x 80.4 mm(2.03” x 3.17”) 71.3g (2.51oz) Key Features · Three injector outputs · Three ignition outputs · Dual cowl flap control · Dual crank inputs · Four temperature inputs · Fuel pressure input · Fuel pump control output · Built - in data logging · Built - in log booking $2600 USD IntelliJect EFI Power4Flight