How it Works
EvoJet
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evoJet B160vx
Instructions Manual
33 pgs2.82 Mb0
Table of contents
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EvoJet evoJet-VX Series, evoJet B130vx, evoJet B90, evoJet B160vx, B110neo Instructions Manual

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RC Model Jet Engines
evoJet - B90 - B130vx - B160vx
© 2005-2011 evoJet GmbH
Am Parir 4A
52379 Langerwehe – Germany
Tel.: +49 2423 / 401163 - Fax: 401217
support@evojet.de
http://www.evojet.de/
Contents
Introduction .........................................................................................................................3
Warnings and Safety Notes ...............................................................................................4
Warranty Conditions............................................................................................................7
Technical Specifications.....................................................................................................8
Installation Plan....................................................................................................................9
Checklist for the First Operation......................................................................................10
Checklist for Turning the Engine Off...............................................................................10
EDT Status Display (Engine Data Terminal)....................................................................11
JETRONIC-Vx – Firmware Setup......................................................................................13
1:INFO Menu ......................................................................................................................14
2:STATISTICS Menu ..........................................................................................................18
3:LIMITS Menu ...................................................................................................................20
4:AUTOSTART Menu ........................................................................................................22
5:R/C-SETTINGS Menu .....................................................................................................24
6:TEST-DEVICES Menu ....................................................................................................28
Airspeed Sensor [8135].....................................................................................................31
Notes...................................................................................................................................33
2

Introduction

The model jet engines of the evoJet-VX series uses the same functional principle as a "big" jet engine. A high performance compressor compresses ingested air, which is then heated by a fuel flame in the combustion chamber. The heat causes the air to expand rapidly, enabling it to drive an axial turbine rotor, which in turn drives the aforementioned compressor via a shaft (open-circuit gas turbine).
At the exhaust cone, the hot air leaves the engine at a speed of more than 1000 km/h (620 mph), generating the required thrust for the jet aircraft model. An electric starter motor and a new electric kerosene ignition system allow fully automated engine control from the R/C transmitter, controlled and monitored by the JETRONIC control unit, which regulates all operating parameters to their optimal values. This new generation of model jet engines does not require dangerous auxiliary gases like propane or butane any more. Power is supplied to the engine by a separate rechargeable lithium-manganese battery, which is used to power all system components, such as fuel pump, kerosene ignition, valve etc.
State-of-the art precision CNC and laser cutting technology allow a previously impossible production accuracy, ensuring both high performance and durability. The included display and programming unit (EDT = Engine Data Terminal) is equipped with an illuminated LC-Display and can be connected to (and disconnected from) the running system at any time to check the current operating data or to change parameters. Besides the current operating parameters, such as exhaust gas temperature (EGT), turbine revolutions per minute (rpm) and thrust (throttle), additional information like total hours of operation, rpm and temperature statistics, number of engine starts, battery voltage etc. can be displayed as well.
All parameters and user entries are displayed in plain text in a menu-based interface. The turbine is started fully automatically via the throttle stick on the R/C transmitter. The pilot then adjusts the desired thrust by moving the stick proptionally. The JETRONIC control unit is connected to the R/C receiver via R/C-1. R/C-2 can be connected optionally for switching functions.
3
IMPORTANT NOTE:
Operating a jet aircraft model requires greatest care and special knowledge. When
installing and operating your jet engine, always observe the safety rules in this manual !

Warnings and Safety Notes

Welcome to the era of model jet aircraft! Please never forget: Operating a jet engine like the evoJet-VX can be dangerous. An aircraft model equipped with the evoJet-VX can reach speeds of more than 400 km/h (250 mph) and temperatures up to 500 °C (930 °F) at the engine housing and up to 750 °C (1380 °F) at the exhaust jet. Since it is a genuine jet engine, it requires know-how, discipline and regular service and maintenance – for your own protection and that of other people. If you want to install and operate this jet engine in your model aircraft, you mus be trained in its handling. The model with the jet engine should only be operated under supervision of an experienced person, who can support you in order to avoid mistakes. If there is a local R/C club in your area offering training and support, we recommend that you become a member. Mistakes made during the assembly or operation of a jet-powered model aircraft can lead to serious injuries or even death.
Always observe the law
Before operating a model aircraft with this jet engine, you should be informed about the legal regulations regarding such aircraft. From a legal point of view, a model aircraft is considered an aircraft like any other in most countries and is subject to the corresponding laws, which must be observed by all means. Please check the applicable air traffic laws of your country carefully before flying your model. Your local R/C club will likely be able to provide you with the required info­rmation and documents. In many countries, jet-powered model aircraft require a special licence and/or a special insurance. Furthermore, regulations regarding the protection against interference between R/C transmitters and radio networks must be observed. Please make sure to comply with all applicable laws and regulations in your country.
CAUTION – keep a safe distance!
It is your responsibility to protect others against injuries. The operating distance of your aircraft from residential areas must be at least 1.5 km (1 mile) in order to ensure the safety of people, animals and buildings. Keep a safe distance from power lines. Never fly your model in bad weather with low clouds or fog. Never fly directly against the sunlight – otherwise you might lose visual contact with your model. To avoid collisions with manned or unmanned aircraft, land your model immediately if an aircraft is approaching. Persons and animals must keep the following minimum distance to the jet engine (see also the figure on page 6):
In front of the engine: 1 m (3 ft)
At the sides of the engine: 12 m (36 ft)
Behind the engine: 10 m (30 ft)
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WARNING !
Operating the model and/or the jet engine under the influence of alcohol, drugs etc. is strictly forbidden. The jet engine may only be handled by persons with an excellent physical and mental condition and concentration. This applies to the operator as well as any assistants.
This jet engine was designed solely for use in model aircraft and is not suitable for any other purpose. Never use it for persons, objects or vehicles other than suitably constructed model aircraft, as any other use can lead to personal injury or death.
Any deviation from the specifications in this manual, the use of non-approved parts or materials or modifications to the system construction or setup can have a negative effect on the functionality and safety of the jet engine and must be avoided by all means.
WARNING !
The jet engine may only be operated in exact compliance with the instructions in this manual. Furthermore, the specifications of the aircraft model regarding the centre of gravity and rudder manipulations must be adhered to. The configuration recommended by the model manufacturer must be observed. Before taking off with a model equipped with this jet engine, all functions and all rudders as well as the range of the R/C transmitter must be tested with the transmiter turned on and the antenna retracted. This range test must be repeated with the jet engine running while another person is holding the model in place. Furthermore, the instructions by the R/C system manufacturer must be followed closely.
Disclaimer
evoJet cannot supervise the adherence to the assembly and operating instructions for the aircraft
model and the jet engine, nor the installation, operation, use and maintenance of the model components. Therefore, evoJet does not assume any liability for losses, damage or costs caused by improper operation or improper behaviour or related in any other way to the aforementioned. Unless demanded by law, any liability of evoJet to pay compensation for damages for whatever reason (including personal injury, death, damage to buildings as well as loss of sales and profits, business interruption or other indirect or direct consequential loss caused by the operation of the model or the jet engine) is excluded. Under all circumstances and in any case, the joint liability is limited to the amount you actually paid for the model aircraft or jet engine.
The operation of the aircraft model and the jet engine takes place solely at the operator's
own risk!
By operating the jet engine, you confirm to be aware of the fact that evoJet cannot supervise or control the compliance with the instructions in this manual regarding assembly, operation and use of the aircraft model, jet engine and remote control unit. From evoJet's side, no promises, contractual agreements, guarantees or other agreements with persons or companies regarding the functionality and operation of the model and the jet engine have been made. When buying this aircraft model or jet engine, you as the operator were relying on your own expertise and judgement.
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Safety Notes
Always have a fully functional CO2 fire extinguisher with at least 2 kg (4.4 lb) of filling
✔
weight at hand.
Only test the jet engine at suitable places outdoor and observe the applicable laws
✔
and regulations.
Always keep the following safety distances from the running jet engine
✔
(1 m = 3 ft, 10 m = 30 ft, 12 m = 36 ft):
Never look straight into the exhaust jet and never touch it with your hands.
✔
Whenever possible, wear hearing protection.
✔
Keep away from the engine intake (electric starter). The air stream has an enormous
✔
suction power, which can lead to severe injuries.
After the first installation, and afterwards in regular intervals, test the transmission
✔
range of your R/C system with the jet engine running.
Before operating the engine, remove all loose objects near the engine intake, such
✔
as cleaning cloths, screws, nuts, cables or other material. Before operating your model for the first time, make sure that there are no loose objects in the engine intake, such as clippings, screws or swarf from building the model. Such objects can damage the turbine. When installing the engine in your aircraft model, cover the engine intake and exhaust opening, for example with adhesive tape, to keep clippings/swarf and other objects from entering the engine.
Make sure that about 5 % of turbine oil is added to the fuel. Use prefered special
✔
aircraft turbine oil like AEROSHELL 500/560.
6
Warning:
Compared to an ducted fan model aircraft, the model with a real jet engine reaches much higher airspeeds due to the considerably higher exhaust speed at the same static thrust. The achievable airspeeds of more than 300 km/h (190 mph) normally exceed the speed range an aircraft model is approved for (risk of rudder flutter, sudden nose dives and overload of the fuselage and the servos).
Therefore always take care of the following: After taking off and accelerating to normal airspeed, always pull the throttle back. For horizontal flight, 50 % of thrust is sufficient to achieve the same flight performance as with an ducted fan !
Only use the full thrust of the jet engine for takeoff and for vertical climbing in aerobatics!
For limiting the airspeed, we highly recommend using the optionally available Airspeed Sensor (part no. 8135) !

Warranty Conditions

The warranty covers the free repair or replacement of parts that exhibit proven defects of fabrication or material defects within the warranty period from the date of purchase. Any further claims are excluded. Costs for packaging and shipping are paid by the buyer. No liability is assumed for loss during transport. When sending the defective article to evoJet or to the service contractor in charge for the respective country, a detailed description of the fault and the invoice stating the date of purchase must be included. The warranty is void if the defect of the part or the model is caused by an accident, improper handling or improper use.
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Technical Specifications

evoJet B90 – B130vx – B160vx
Max. thrust: B90: typ. 9 kg = 19 lb
B130: typ. 14 kg = 31 lb B160: typ. 16 kg = 36 lb
Diameter: B90: 91 mm = 3.6 inches
B130/160: 112 mm = 4.4 inches
Length incl. starter: B90: 230 mm = 9.06 inches
B130/160: 288 mm = 11.3 inches
Weight: B90: 950 g = 2.1 lb
B130: 1595 g = 3.52 lb B160: 1620 g = 3.58 lb
Rotor speed: B90: 45.000 – 165.000 rpm
B130: 30.000 – 119.000 rpm B160: 30.000 – 123.000 rpm
Compressor: Alloy 2618 compressor 12-blade
Turbine: Axial-wheel Inconel
Fuel consumption: B90: max. 285 g = 10.0 oz./min.
B130: max. 420 g = 14.8 oz./min. B160: max. 520 g = 18.4 oz./min.
Fuel type: Jet A1 / kerosene, approved fuel
with 5 % oil
Maintenance interval: B90: 300.000.000
B130/160: 200.000.000 corresponding 50 hours, see 24:JET-ENGINE (page 19)
Status: October - 2010
(*) The engine thrust is electronically adjustable by setting the idle- and the full thrust revolution speed (page 21, 30:ENGINE-IDLE und 31:ENGINE-100% ). All performance data are related to International Standard Atmosphere, ISA and optimal operating conditions which means, fuel, thrust tube and sufficient air supply.
8

Installation Plan

9

Checklist for the First Operation

Install and connect the components according to the installation plan (see page 9). Pay
✔
special attention to the correct connection of the FUELvalve and to a proper laying of the tubes without kinking them. An arrow on the fuel pump and the valve indicates the flow direction to the engine.
The QS quick connectors (blue) should snap in when you plug in the tube. The tube can
✔
only be released by pressing on the blue ring while pulling the tube out. Only use approved PUN tubes with a diameter of 3 mm (0.12") or 4 mm (0.16"), respectively.
Check the temperature sensor to the environment temperature via the parameter
✔
AUTOSTART 47:EGT/AMBIENT (see page 23).
Teach-in the remote control: OFF, IDLE, 100 %, via the R/C-SETTINGS parameters 51, 52,
✔
53 (see page 25).
Charge all batteries, paying special attention to the correct charging program for the lithium-
✔
manganese battery, i.e. a maximum charging voltage of 12.6 V. Use the 3s LiPo charging
mode with 1 – 2 Amps.
Open the fuel tank ventilation, then fill the fuel tank(s) with fuel containing approx. 5 % of
✔
oil, i.e. one can of turbine oil in 20 litres (5.3 US gallons) of kerosene.
Have a CO2 fire extinguisher at hand!
✔
Turn on the R/C transmitter, then turn on the receiver.
✔
Place your aircraft model with the nose against the wind.
✔
Start the jet engine (keep a safe distance, see page 6!):
✔
1. Throttle down + trim down => remove LOCK
2. Trim up => RUN – cleared
3. Throttle up and down again => AUTOSTART activated, see EDT display (page 11).

Checklist for Turning the Engine Off

Place the aircraft model with the nose against the wind.
✔
Turn the jet engine off: Throttle down + trim down (below 25%) => -OFF
✔
Wait until the automatic cool-down procedure of the engine is finished.
✔
Check the INFO data about the operating states (see page 14 ff).
✔
After finishing the flight activities, remove all fuel from the tank(s) and close the fuel tank
✔
ventilation.
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