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Frank Turbine FT 180 - User Manual

Frank Turbine FT 180
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Manual and information to operate the engine FT 180,
FT220 FT 250
Date: April 2020
Mario Pasqualini
https://frankturbine.com/
mario@frankturbine.com
00436602427021
Alfred Frank
https://frankturbine.com/
alfred@frankturbine.com
00499947902762
Lorenz Bernreiter
https://frankturbine.com/
schubrohre@frankturbine.com
00436645030237
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Overview

The Frank Turbine engine is a jet engine designed for model aircraft, characterized by high power and thrust relative to its size and mass. It operates on the recoil effect generated by air and exhaust gas flow, with a gas turbine as its central component. This manual covers the FT 180, FT 220, and FT 250 models.

Function Description

The engine's core function is to provide thrust for model aircraft. It is managed by an Electronic Control Unit (ECU), specifically the HORNET-III, which oversees critical turbine parameters during operation. The ECU prevents excessive increases or decreases in RPM and regulates acceleration rates based on exhaust temperature during throttle movements. A "motor stop" switch is recommended to place the ECU on standby or turn off the engine.

Important Technical Specifications

The engine requires a 3S LiPo battery with a minimum capacity of 3000 mAh for its power supply, connected directly to the ECU without an intervening switch. For fuel, the system utilizes Kerosin (Jet-A1) or Petroleum, with a recommended oil content of 4-5%. Ultimate or V-Power Diesel can also be used, but with a lower oil content of 2-3%. Winter diesel is explicitly not suitable. Only special Frank Turbine Oil should be used to prevent bearing damage and maintain warranty validity.

The fuel system is critical for proper operation. Suction lines should be as short and thick as possible, without quick connectors. Pressure lines can use quick connectors but should also be kept short. Vent lines in fiberglass tanks must be short and thick. A felt pendulum is essential in the main tank. A filter must be installed after the pump and before the turbine to prevent contamination. For hopper tanks, metal sintering filters with low resistance are recommended. The manual suggests using 6mm tube lines for pump suction and limiting the total suction line length to a maximum of 20 inches. The fuel pump should be installed in an area with sufficient cooling air, and proper venting is crucial, placed in an area with enough excess pressure.

Pump voltage specifications vary by model and pump type:

  • Ullermann DC Pump for FT 180-250:
    • Pump voltage start: approx. 0.29-0.4 Volt
    • Pump voltage idle: approx. 0.8 Volt
    • Max pump voltage: approx. 6 Volt
    • Max calibration voltage: approx. 2.0 Volt
    • Correction Factor: approx. 1.8
    • Calibration rate: approx. 0.43
  • Häusl BLDC 25 Pump for FT 250:
    • Pump voltage start: approx. 0.24-0.3 Volt
    • Pump voltage idle: approx. 0.85 Volt
    • Max pump voltage: approx. 6-7 Volt
    • Max calibration voltage: approx. 2.0 Volt
    • Correction Factor: approx. 1.8
    • Calibration rate: approx. 0.4
  • Häusl BLDC 21 Pumpe f. FT 180-FT220:
    • Pump voltage start: approx. 0.25-0.35 Volt
    • Pump voltage idle: approx. 0.6-0.8 Volt
    • Max pump voltage: approx. 5-6 Volt
    • Max calibration voltage: approx. 1.9 Volt
    • Correction Factor: approx. 1.6 Volt
    • Calibration rate: approx. 0.32
  • Häusl DC ZP30025SF Pumpe f. FT180-220:
    • Pump voltage start: approx. 0.20-0.3 Volt
    • Pump voltage idle: approx. 0.5 Volt
    • Max pump voltage: approx. 4.0 Volt
    • Max calibration voltage: approx. 1.6 Volt
    • Correction Factor: approx. 1.64 Volt
    • Calibration rate: approx. 0.32

Usage Features

The engine's operation involves several checks and procedures:

  • Pre-start checks: Verify the servo valve is closed, fuel is in the main tank, and the engine is installed correctly (hexagon screw at 12 o'clock). Check tank ventilation, fuel level, and battery charge. Ensure fire extinguishers are ready. Switch on the transmitter and trim to the rear before connecting the battery to the ECU. Perform a range test.
  • Safety during operation: Always operate the aircraft safely, be prepared for unexpected landing maneuvers in case of engine failure, and avoid operating the engine at outside temperatures above 95°F.
  • Start procedure: Move the motor switch to "ON Position" and cycle the throttle 100%-0%-100% within 1 second. The engine will automatically calibrate, accelerate to calibration speed, then drop to idle. Once at idle, the throttle can be returned to the idle position, and the engine is ready.
  • Switch-off procedure: Move the throttle to idle and trim to "OFF position" or use the "Motor Switch" to "OFF Position." The engine will automatically cool down to 100°C.
  • General checks: Regularly inspect the felt pendulum for cleanliness, listen for unusual running noises from ball bearings, and check for vibrations. Connect the terminal every 5 operating hours to check all values against the test protocol. Adjust pump start voltage as needed based on sea-level altitude to manage flame generation or ignition issues. Always close the pressure connection at the engine if no smoker tank is used. The terminal display will show the last reason for engine shutdown, which is useful for unexpected engine failures.

Maintenance Features

Warranty on the engines is 24 months from the date of sale, provided specific service times are met after 25 hours of operation, and special Frank turbine oil is used. Service must be performed by an authorized service location in Austria, Germany, or Ultimate Jets Cypress, TX 77433. The warranty is void if the engine is opened by unauthorized personnel or if used improperly (e.g., not exclusively for model aircraft).

After 25 hours of operation, the engine must undergo an operational safety test at a certified service center. Dusty flight conditions and external landings can reduce the maintenance interval. Under optimal conditions (no dust, Jet A1 fuel, constant operating speed), maintenance is recommended every 50 hours.

Frank Turbine FT 180 Specifications

General IconGeneral
BrandFrank Turbine
ModelFT 180
CategoryEngine
LanguageEnglish