996GRX Engine

82 HP boxer uav engine with electronic injection 150A brushless starter generator with in-flight

Variable pitch propeller and gear reduction

Engine Overview

The 996GRX from Zanzottera Technologies SRL is a state-of-the-art propulsion solution tailored for unmanned aerial vehicles in the 350-450 kg class with high-altitude requirements.
Combining powerful two-stroke performance with innovative variable pitch and reduction drive technology, it maintains optimal thrust across a wide altitude range.
With adaptive environmental controls and advanced electronic management, the 996GRX is truly one-of-a-kind in the UAV market—designed for precision, endurance, and total operational confidence.

Technical Specification

  • Total Displacement: 996 cm³
  • Rated Power: 82 HP @ 6000 RPM
  • Sustained Power: 50 HP up to 13,000 ft
  • Ignition System: Dual Redundant
  • Cooling: Air-cooler with controlled flappers
  • Fuel System: Double redundant fuel pumps, EFI
  • Generator Output: 4.5 kW Brushless
  • Communication Interfaces: RS232 & CANBUS
  • Fuel Type: ≥ 95 Octane / 100LL + 2% oil
  • SFC With mufflers: Better than 290 gr/HP/h
  • SFC With stubs: Better than 350 g/HP/h
  • ECU Data Storage: 1,000 h
  • Dry Weight: 32.00 kg

Key Features

  • Opposed four-cylinder boxer engine for smooth, balanced operation
  • Power Output: 82 HP @ 6000 rpm with constant 50 HP sustained up to 13,000 ft
  • Variable pitch propeller system for optimized thrust and fuel efficiency
  • Reduction belt drive for smooth power transmission and reduced vibration
  • Adaptive hot air intake mechanism for improved performance in varying conditions
  • Single ECU manages fuel injection, ignition, variable pitch, and diagnostics
  • Dual redundant fuel pumps for enhanced reliability
  • Integrated diagnostics and data logging for mission assurance
  • Exhaust options including stub pipes and full-length mufflers
  • Rotation: Counter-clockwise (viewed from propeller side)
  • Throttle governor control for precise engine speed regulation
  • Communication Interfaces: RS232 & CANBUS

Curves

Zanzottera Technologies S.r.l.
Società a socio unico

Via Italia, 105/107
22010 Grandola ed Uniti (Como) Italy
Tel: +39 0344 32686
Tel: +39 0344 32825
VAT N° IT03766920965
C.C.I.A.A. Como N° 03766920965
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