SW240Pro24 kgf · 235.2 N
Mid-Range Pro Turbojet

SW240Pro

24 kgf / 235.2 N Class · 38,000–116,000 rpm

Top of the 115 mm airframe family: 24 kgf from the same 1.8 kg engine unit that carries the SW220Pro. 235.2 N from a 1.8 kg engine unit — a bare-engine thrust-to-weight ratio of 13.3:1, 2,650 g all-up with accessories. Runs on aviation kerosene, starts electronically, and reports telemetry over RS-232.

24 kgf
Thrust
235.2 N
Rated
1.8 kg
Engine Weight
13.3:1
T/W (bare)
116,000
Max RPM
750 °C
Rated EGT
Technical Data

Full Specifications

Every parameter below comes from the manufacturer's Rev. A/2 datasheet.

Performance

  • Rated Thrust24 kgf / 235.2 N / 52.9 lbf
  • Idle to Max Speed38,000 - 116,000 rpm
  • Minimum Speed28,000 rpm
  • Thrust-to-Weight (bare engine)13.3 : 1
  • Thrust-to-Weight (all-up)9.1 : 1
  • Max Fuel Flow780 g/min
  • Equivalent Full-Throttle Flowapprox. 46.8 kg/h

Physical & Installation

  • Max Diameter115.4 mm
  • Overall Length277.5 mm
  • Engine Unit Weight1,800 g
  • ECU Weight (V4)353 g
  • All-up Weight (with accessories)2,650 g
  • Operating Temperature-40 C to +50 C
  • InstallationSingle-shaft turbojet, fixed mounting frame supplied

Start & Run Settings

  • Fuel Pump Voltage0.5-1.2 V
  • Speed Ramp100 %
  • Fuel Pump Ramp3
  • Glow Plug Voltage5-7 V
  • Ignition Fuel Valve40
  • Ignition Speed3,000 rpm
  • Preheat Speed5,000 rpm
  • Clutch Disengage Speed20,000 rpm
  • Acceleration / Deceleration Curve25 / 25
  • Cooling Setting5,000 rpm
  • Fuel Pump Limit15 V
  • Min. Supply Voltage10 V

Control & Telemetry

  • Throttle SignalPWM 1-2 ms (1 ms = 0 %, 2 ms = 100 %)
  • PWM Logic Level3.3 V or 5 V
  • Start SwitchPWM-controlled, one-key electronic start
  • TelemetryRS-232
  • Starter MotorElectric, retractable
  • Eject Time0.5 s
  • Eject Voltage4 V
  • Run Voltage4 V

Accessories & Logistics

  • Accessory Setengine unit, ECU (V4), GSU, mounting frame, power cable, signal cable, ball valve, fuel filter and 1.5 m fuel lines
  • Packing Case42 x 28 x 22 cm
  • Packing Weight3.5 kg
  • FuelAviation kerosene
  • Lubricant3 % - 5 % turbine oil in fuel
  • Service Interval25 h

Compliance

  • Thrust Class24 kgf / 235.2 N
  • Dual-Use ThresholdBelow the 400 N threshold - no export licence required for most destinations
  • Manufacturer ScopeModel-aircraft flight, competition, demonstration, firefighting and road-surface drying only
  • DatasheetRev. A/2 technical specification sheet, full parameters published
Why This Model

What Sets It Apart

Power density

235.2 N from a 1800 g engine unit - a bare-engine thrust-to-weight ratio of 13.3:1.

Instrumented control

The V4 ECU (353 g) handles start sequencing, pump ramping and the closed-loop speed governor, with GSU ground support in the box.

Twin airframe

Shares its airframe and engine unit with the SW220Pro - identical 115.4 mm airframe and 1,800 g engine unit - only the speed ceiling and rating differ.

Speed band

Runs 38,000 to 116,000 rpm with a 38,000 rpm idle and 5,000 rpm cooling setting.

Kerosene and 25 h service

780 g/min at full throttle on aviation kerosene with 3-5 % turbine oil; scheduled service every 25 hours.

Civil scope, full datasheet

Manufacturer-rated for model flight, competition, demonstration, firefighting and road drying. Every start, run and control parameter is published.

Applications

Where It Fits

Civil and commercial domains within the manufacturer's stated scope of use.

High-Speed Unmanned Aircraft

Primary propulsion for fixed-wing and hybrid airframes in the 24 class.

Firefighting & Emergency Response

High-thrust, low-weight power for rapid-response unmanned platforms.

Industrial Air & Surface Drying

Compact jet output for drying, cleaning and air-movement duties.

Research & Competition Flight

Repeatable, fully documented parameters for test benches and race airframes.

Scope of Use & Export Compliance

The manufacturer specifies this engine for model-aircraft flight, competition, demonstration, firefighting and road-surface drying — entertainment and civil applications only. Modification for unlawful purposes, or resale to countries under national export restrictions, is prohibited.

Rated thrust sits below the 400 N threshold used in dual-use classification, so most orders ship without an export licence. Every shipment still requires an end-user certificate (EUC) and a review of the destination and stated end use.

Every engine ships with a manufacturer's certificate of conformity and full shipping documentation. Accessory set: engine unit, ECU (V4), GSU, mounting frame, power cable, signal cable, ball valve, fuel filter and 1.5 m fuel lines.

Ask for pricing and lead time

Tell us the airframe, target thrust and operating profile — we reply within 24 hours with a quote and the full datasheet.