SD-1 MINISPORT

SE 33I (XP) Engine

SE33I (XP) 4-Stroke, OHV, Inverted Engine Overview

This simple yet robust 4-stroke, OHV, inverted engine is designed based on a proven industrial solution, making it a reliable and efficient choice for light aircraft like the SD-1. With a weight of 32 kg, it strikes a balance between power and lightweight design, enhancing the aircraft’s overall performance. Power of basic version is 33 HP. The SE33I XP tunned version has power of 35 HP.

Engine Specifications

  • Crankshaft and Connecting Rods: The engine features forged crankshaft and connecting rods, ensuring durability and strength, which are critical for consistent performance and long engine life.
  • Cooling System: Air-cooled design simplifies maintenance and operation, while providing adequate thermal management during flight.
  • Ignition System: Magneto ignition ensures reliable starting and operation, a common and dependable choice for aircraft engines.
  • Propeller Compatibility: The engine is paired with a Helix propeller, with a diameter of 1.25 meters. This two-blade fixed composite propeller is optimized for efficiency and performance of SD-1.
  • Fuel Type: The engine runs on MOGAS with a minimum octane rating of 95 RON, making it compatible with widely available automotive gasoline.
  • Time Between Overhauls (TBO): The engine has a TBO of 1000 hours.
  • Overhaul Cost: The estimated overhaul price is approximately 2000 EUR, offering a cost-effective maintenance solution for operators.

Suitability

The SE33I (XP) is considered the most suitable 4-stroke engine for the SD-1, providing a well-rounded combination of reliability, performance, and cost-efficiency, making it an excellent choice for both amateur and experienced pilots. 

We offer the kit for installation of Hirth F-23 (50 HP) 2-stroke engine also.

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