Highlights in this issue include a dossier on the Prodrive World RX I4 Turbo, Race Engine Retro and the challenge of Formula E. Insights into valve seats and Jesel's Equal Eight as well as focus articles covering CAD, sensors and data acquisition. 

Highlights in this issue include a conversation with FLIR's Tom Frost, dossiers on the Tecdron TC-800 FF and the Robby Moto UAVE as well as a look at the Teledyne SeaRaptor. An insight into USV's and we look at the Singular Aircraft FlyOx. Show reports from AUVSI Xponential 2019 & Ocean Business 2019 as well as focus articles covering propellers, simulation and testing.

This issue contains an insight into supercapacitors and a show report from Electric & Hybrid Vehicle Europe 19. Dossiers on the John Deere 944K Hybrid Loader and the Protean PD18. We look at the E-Kotug as well as focus articles covering axial flux motors and cable.

Highlights in this issue include a conversation with Norio Aoki from Toyota Gazoo Racing and a report on 24-Hour Prototype Engines 2019. A dossier on the Mercury Racing 2.5 EFI F-1 H20 v6 and we look into ECR Engines Cadillac DPi-V.R. A report from the European Automotive Testing Expo 2019 as well as focus articles covering lubricants, component and materials testing. 

Highlights in this issue include a conversation with Aprilia's Romano Albesiano, Electric Avenue & Challenge Of The British Hill Climb Championship. A dossier on the Noonan NHRA Pro Mod 4.9 Hemi, we also look at the 4Piston Super 99 as well as focus articles covering transient dynamometers & exhausts. 

Highlights in this issue include a cover story on Reference Technologies' Hummingbird XRP along with focus articles on Gimbals and Performance Monitoring. Nick Colosimo of BAE Systems gives his thoughts on the future of UAVs, we report back from AUVSI Xponential, have a dossier on O'Neill Power Systems NorEaster, we have an insight into UAVs and look at the Kratos Defense ATMA.

Highlights in this issue include a conversation with MagDev's technical director David Richards, as well as a look at the Tropos Motors ABLE-XR. A dossier on the Lightning Strike Motorcycle and a deep insight into hydrogen-powered vehicles. We look at the Solaris Urbino 18 electric in operation, as well as focus articles covering insulation and inverters.

Highlights in this issue include a conversation with Renault F1's technical director Remi Taffin and the challenge of F1H20 World Championship. A report from the British Grand Prix 2019 and Engine Expo 2019, as well as a dossier on the Outkast Racing Engines RY45 Late Model v8. We investigate the Team Bath Formula Student KTM Turbo, the EDL Judd DB and the Suzuki NHRA Pro Stock motorcycle. As well as a focus article covering transmissions.

Highlights in this issue include conversations with ASVs Geoff Douglass and SkySkopes Matt Dunleavy, dossiers on the ecoSUB Robotics AUVs and the Apple Tree Innovation WAM-167BB. We look at the AMZ Driverless gotthard and the Aerdron HL4 Herculift as well as an insight into unmanned space vehicles. A show report from InterDrone 2019 as well as focus articles on engine control units and video systems.

Highlights in this issue include a conversation with HPD’s Mark Crawford as well as an update on the Yamaha MotoGP I4. A dossier on the Bolt HRC-4 I4 Turbo, the challenge of Moto3 with KTM and we look at Hybrids in the WRC. Focus articles on component lifting, valves and piston rings, we also detail the Race Engine of the Year 2019 Nominations. E-Race Power Technology contains a conversation with Mercedes-Benz’s Ian James as well as looking at the Lightning Motorcycles LS-218.

Highlights in this issue include a conversation with Drone Evolution's technical director John Young as well as dossiers on the Phoenix UAS and the Adelan solid oxide fuel cell. An insight into construction and we look at the Supacat hybrid ATMP. Reports from InterGeo 2019, DSEI 2019 and our tour of Oregon. We look at the Copperstone Helix as well as focus articles covering sonar systems and power management systems.

Highlights in this issue include a conversation with DS Techeetah's team principal and the challenge of Aquabike. A dossier on the M-sport Ford Fiesta R5 I4 Turbo as well as an insight into Toyota Racing Development USA. The results of Race Engine of the Year 2019, reports from Testing Expo North America and PMWE 2019 as well as focus articles covering computer aided manufacturing (CAM), turbo's and superchargers.