3W-International’s performance partner Sky Power and A-techsyn are introducing the first Sky-Power-driven VTOL

A-techsyn — manufacturer of VTOLs, fixed-wing UASs, target-acquisition drones, and communications and autopilot systems — will introduce the first VTOL equipped with one of 3W-International-performance-partner Sky Power’s engines at Xponential 2018 as part of the 3W-Interntational exhibition stand. A SP-110 FI TS based on 3W-International GmbH’s 110 ccm model is involved here. The engine can be deployed both as vertical drive and for power generation.

A-techsyn Ltd. is a company from Shannon, Ireland, which has been intensely occupied in recent years with the development of UASs and the associated communication and flight systems. The CGT45-SLT vertical take-off aircraft was equipped with the retrofitted engine as part of the collaboration with 3W-International and Sky Power. “The CGT45-SLT has been used in Turkey for some time now. However, we were looking for a new engine concept in order to increase the range and pay load”, explains Gokhan Celik, managing director of A-techsyn. That’s why the Irish company contacted 3W-International. “The standard 3W-110i B2 TS engine’s performance parameters would also have sufficed, but ultimately the choice fell to the SP-110 FI TS from Sky Power”, according to Karsten Schudt, managing director of 3W-International.

The CGT45-SLT is a 4.5 m wingspan, T-tail UAV. It uses electric powered motors for take-off and landing and does not require a runway or catapult. The VTOL can take off from a table and land with high accuracy on a 5 m × 5 m surface. It is a composite airframe with 4 kg payload capacity. At the basic set-up, CGT45-SLT uses 3 separate communication systems for datalink, video-link, and the FPV. The datalink system operates at 900–922 MHz, FPV at 1.2 GHz, and the video-link at 2.4 GHz. The video-link uses IP communication and 128-bit SSL encryption to secure the data transferred. Video and data may be broadcast if desired. The CGT45-SLT has a 50 kg MTOW (including payload). It can be operated by only two people. The CGT45-SLT is controlled by A-techsyn’s flight controller AvionicsMini. This flight controller is using CAN BUS interface to communicate with the new ECU030 by Sky Power.

Beside the ECU030, the SP-110 FI TS is equipped with the new HKZ215 ignition from Sky Power too. “Thanks to the two new systems, the engine can be tuned exactly to environmental conditions as well as to the customer’s wishes”, explains Karl Schudt, managing director at Sky Power. The system has four ignition channels with two separately settable injection nozzles. Pump pressure is regulated electronically. A cold-start function of the engine is possible without further ado. The automatic controller adjusts the fuel mixture to the current cylinder temperature, air pressure, and exterior temperature. The high-performance HKZ system was developed for significantly greater ignition powers. The engine’s overall fuel efficiency is thereby enhanced and the exhaust values improved. “With the new ignition and injection system, we achieve better power performance in 3W engines, plus a significant reduction of fuel consumption”, explains Karl Schudt.

In addition to the CGT45-SLT, A-techsysn will exhibit its own autopilot, PilotUS, as well as further systems developed for its own flight systems, on the 3W-International stand during Xponential.

3W-International, Sky Power, and A-techsyn are located at stand 2210.

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