Daily Archives: January 24, 2014


The Flying Field

The most safe to fly your model is at the flying field of aeromodelling club.

Here is some links to the nearest aeromodelling club in your area:

 

Make sure you have read the A.M.A safety code. It is wise that you know your model characteristics (the flight speed, the flight altitude, etc) before deciding to fly the model in any field, not in aeromodelling clubs flying field. A.M.A has made a documentation on Recommended RC Flying Site Specifications and you may have a look here.

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2013 field 1

about_fld_runway_800

field_2

 


Safety First !

The Safety Code is published by A.M.A (Academy of Model Aeronautics).

A.M.A Safety Code doc.PDF download here.

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For further information, please visit ama-logo

 

Academy of Model Aeronautics National Model Aircraft Safety Code

Effective January 1, 2014

 

 

A. GENERAL:

A model aircraft is a non-human-carrying aircraft capable of sustained flight in the atmosphere. It may not exceed limitations of this code and is intended exclusively for sport, recreation, education and/or competition. All model flights must be conducted in accordance with this safety code and any additional rules specific to the flying site.

 

 

1. Model aircraft will not be flown:

(a) In a careless or reckless manner.

(b) At a location where model aircraft activities are prohibited.

 

 

2. Model aircraft pilots will:

(a) Yield the right of way to all human-carrying aircraft.

(b) See and avoid all aircraft and a spotter must be used when appropriate. (AMA Document #540-D.)

(c) Not fly higher than approximately 400 feet above ground level within three (3) miles of an airport without notifying the airport operator.

(d) Not interfere with operations and traffic patterns at any airport, heliport or seaplane base except where there is a mixed use agreement.

(e) Not exceed a takeoff weight, including fuel, of 55 pounds unless in compliance with the AMA Large Model Airplane program. (AMA Document 520-A.)

(f) Ensure the aircraft is identified with the name and address or AMA number of the owner on the inside or affixed to the outside of the model aircraft. (This does not apply to model aircraft flown indoors.)

(g) Not operate aircraft with metal-blade propellers or with gaseous boosts except for helicopters operated under the provisions of AMA Document #555.

(h) Not operate model aircraft while under the influence of alcohol or while using any drug that could adversely affect the pilot’s ability to safely control the model.

(i) Not operate model aircraft carrying pyrotechnic devices that explode or burn, or any device which propels a projectile or drops any object that creates a hazard to persons or property.

Exceptions:

• Free Flight fuses or devices that burn producing smoke and are securely attached to the model aircraft during flight.

• Rocket motors (using solid propellant) up to a G-series size may be used provided they remain attached to the model during flight. Model rockets may be flown in accordance with the National Model Rocketry Safety Code but may not be launched from model aircraft.

• Officially designated AMA Air Show Teams (AST) are authorized to use devices and practices as defined within the Team AMA Program Document. (AMA Document #718.)

(j) Not operate a turbine-powered aircraft, unless in compliance with the AMA turbine regulations. (AMA Document #510-A.)

 

 

3. Model aircraft will not be flown in AMA sanctioned events, air shows or model demonstrations unless:

(a) The aircraft, control system and pilot skills have successfully demonstrated all maneuvers intended or anticipated prior to the specific event.

(b) An inexperienced pilot is assisted by an experienced pilot.

 

 

4. When and where required by rule, helmets must be properly worn and fastened. They must be OSHA, DOT, ANSI, SNELL or NOCSAE approved or comply with comparable standards.

 

 

B. RADIO CONTROL (RC)

 

1. All pilots shall avoid flying directly over unprotected people, vessels, vehicles or structures and shall avoid endangerment of life and property of others.

 

2. A successful radio equipment ground-range check in accordance with manufacturer’s recommendations will be completed before the first flight of a new or repaired model aircraft.

 

3. At all flying sites a safety line(s) must be established in front of which all flying takes place. (AMA Document #706.)

(a) Only personnel associated with flying the model aircraft are allowed at or in front of the safety line.

(b) At air shows or demonstrations, a straight safety line must be established.

(c) An area away from the safety line must be maintained for spectators.

(d) Intentional flying behind the safety line is prohibited.

 

4. RC model aircraft must use the radio-control frequencies currently allowed by the Federal Communications Commission (FCC). Only individuals properly licensed by the FCC are authorized to operate equipment on Amateur Band frequencies.

 

5. RC model aircraft will not knowingly operate within three (3) miles of any pre-existing flying site without a frequency-management agreement. (AMA Documents #922 and #923).

 

6. With the exception of events flown under official AMA Competition Regulations, excluding takeoff and landing, no powered model may be flown outdoors closer than 25 feet to any individual, except for the pilot and the pilot’s helper(s) located at the flight line.

 

7. Under no circumstances may a pilot or other person touch an outdoor model aircraft in flight while it is still under power, except to divert it from striking an individual.

 

8. RC night flying requires a lighting system providing the pilot with a clear view of the model’s attitude and orientation at all times. Hand-held illumination systems are inadequate for night flying operations.

 

9. The pilot of an RC model aircraft shall:

(a) Maintain control during the entire flight, maintaining visual contact without enhancement other than by corrective lenses prescribed for the pilot.

(b) Fly using the assistance of a camera or First-Person View (FPV) only in accordance with the procedures outlined in AMA Document #550.

(c) Fly using the assistance of autopilot or stabilization system only in accordance with the procedures outlined in AMA Document #560.

 

 

C. FREE FLIGHT

 

1. Must be at least 100 feet downwind of spectators and automobile parking when the model aircraft is launched.

 

2. Launch area must be clear of all individuals except mechanics, officials, and other fliers.

 

3. An effective device will be used to extinguish any fuse on the model aircraft after the fuse has completed its function.

 

 

D. CONTROL LINE

 

1. The complete control system (including the safety thong where applicable) must have an inspection and pull test prior to flying.

 

2. The pull test will be in accordance with the current Competition Regulations for the applicable model aircraft category.

 

3. Model aircraft not fitting a specific category shall use those pull-test requirements as indicated for Control Line Precision Aerobatics.

 

4. The flying area must be clear of all utility wires or poles and a model aircraft will not be flown closer than 50 feet to any above-ground electric utility lines.

 

5. The flying area must be clear of all nonessential participants and spectators before the engine is started.

 

 


Flight Simulator

The Flight Simulator for model aviation is highly recommended to get you prepared and master the flight control without any risk of destroying your built model. This is the most essential tool. Not only the beginners should try this, but even the advanced pilots are also practicing using this to obtain the solid preparation before going to the field.

Here are some list of the Model Aviation Flight simulator:

Just Click on the logo to visit their official website.

 

Real Flight

Phoenix-Simulator-V4

FS One

Aerofly Pro

Aerosim

Here are some of the Free Sim :

 

Clearview SE

Picasim

 


Check and test your electronics

 

 

A.      The efficient practice is to test run the electronics system before assembling to the plane’s body.

  • Check for functionality of each electronics. Make sure to check motions for both directions. (CW and CCW for servos and motor rotation)
  • Check for excessive / unusual heat; possibly caused by short circuit or incompatible electronics spec/combination.
  • Check for servo gear; it might occur that the gear has already damaged / defected.

 

Test before ass Rev0

Notes: make sure the propeller is unattached during the motor’s functionality test. Fast rotating sharp propeller blade may cause serious injury.

Motor Test Rev0

Test before ass 02

 

 

B.      Conduct another test run after assembling to the plane.

  • Check for proper direction and motion; servos operating directions for control surfaces, propeller rotation direction.
  • Check for the transmitter channel configuration for control surfaces, D/R and Expo curves settings, fail safe settings, etc.
  • Check for the propeller proper face direction; tractor or pusher configuration.

 

Test before ass 03 Rev0

Test after ass

 

C.      Conduct final test on the field, before taking off.

  • Check for the right transmitter control configuration; ailerons, elevator, rudder direction configuration.

 

Transmitter setup

 

“Good checklists, on the other hand are precise. They are efficient, to the point, and easy to use even in the most difficult situations. They do not try to spell out everything–a checklist cannot fly a plane. Instead, they provide reminders of only the most critical and important steps–the ones that even the highly skilled professional using them could miss. Good checklists are, above all, practical.”

     ― Atul Gawande, The Checklist Manifesto: How to Get Things Right

 


Here is what you need

The materials:

 

  1. The mechanical parts:

    • A4 Size papers – for printing the parts’ template from the Design Plans
    • Foam sheets (5mm thick) – the aircraft’s main frame material :
      1. Polyfoam sheets (plain white without any coating)
      2. Foam board Polystyrene (with coloured coating)
      3. Styrofoam block (bulk-head) – for plane’s nose protection (OPTIONAL)

      Foam materialFoam Closeup

     

    • Carbon tube 4 mm / 5 mm diameter – for the wing / body spar
    • Carbon rod 1 mm / 2 mm diameter – for control rod

    Carbon Spar

    • Pin horns – to connect the control surfaces to the servos
    • Pushrod connectors – to connect the servo horns / pin horns to the control rod

    DC servo

    • Electric nylon propeller with compatible prop adapter

    Propeller

    • Velcro tape / strip – to fasten the Li-Po Batt / other electronics to the plane for easy removal

    Velcro strips_tapes

    • Bolt M3 with 20 mm length with its nut and O ring – for motor mount assembly
    • Plywood / basswood with 5 mm thickness – for motor mount frame
    • Balsa wood (OPTIONAL)

    Wood

     

  1. The electronics:

    • DC Servos – for control surfaces actuators, flaps, slats, landing gears, etc
    • Servo lead extension cable; single cable and Y- cable  (OPTIONAL)

    DC servo

    • Outrunner brushless motor with compatible connector to the ESC – for the aircraft main engine

    Brushless motor

    • Brushless ESC (Electronic Speed Control) with internal BEC (Battery Eliminator Circuit) and proper connector type to the battery and connector lead to the motor

    Brushless ESC

    • Receiver with compatible transmitter( 2.4 GHz, min 4-Channel, Recommended 6-Channel and above with mixing program)

    Transmitter set

    • Li-Po (Lithium –Polymer) Battery with the compatible connector type to the ESC
    • Li-Po Battery proper charger

    Li-Po Batt

     

  2. Finishing materials: (OPTIONAL)

    • Coloured packing tape – for colour finishing process to the aircraft

    Colour packaging tape

    • Foam safe spray paint
    • Flexographic ink

    Flexo inkPaint with Flexo

    • Acrylic paint

    Acrylic paint

 

The tools:

 

  1. Marker (Fine) – for tracing the parts’ template, the fold lines, edge bevel lines, double bevel lines
  2. Stainless steel ruler – for cutting reference tool
    Marker ruler
  3. Screw driver set with various bit driver (Phillips (cross), slot (flat), hex key (Allen), hex socket)
    Screwdriver
  4. Wood coping saw – for motor mount construction
  5. Cutter / utility knife / hobby knife:
    • for trimming the border edges of printed parts’ template
    • for cutting the parts’ template paper out according to the shapes (scissors may also be used)
    • for cutting the foam sheets (complete cut, edge bevel cut and double bevel cut)
      Cutting tool
  6. Single-sided tapes:
    • for joining the printed parts’ template
    • for taping the parts’ template to the foam sheets for tracing process
    • for strengthening the fold lines, especially 90° fold ( fibre reinforced tape is used in this case)
    • for making the control surfaces hinges (fibre reinforced tape is used in this case)
    • for strengthening the all edges of the aircraft; leading edge of the wing / tail / rudder (OPTIONAL)
  7. Double-sided tapes (mounting tape) – for electronics mounting; the servos, ESC, receiver, etc
    Tapes mix
  8. Hot glue gun – for quick assembling process, for filling the gap in between the narrow holes for carbon tube spar installation.
  9. Epoxy glue – for assembling process; the aircraft’s frame, the motor mount, pin horns (much lighter than hot glue, but take a longer time for preparation (mixing) and drying process)
  10. Foam safe glue – an alternative for epoxy glue / hot glue
  11. Spray adhesive (foam-safe is recommended) – for assembling the airfoil part to the main wing/ body
    Glue Notes: be cautious when selecting spray adhesive, some will consume the foam.
    3M foam spray
  12. Abrasive sand paper (fine grit-size) – for shaping the airfoil curves; leading edge of the wing
    Sand paper
  13. Soldering iron/gun – for connecting wires process; ESC, motor, battery connectors
  14. Tin solder wires
  15. Soldering paste
  16. Heat shrink – for neat wires soldering process
  17. Hot wire foam cutter –  for cutting foam sheet with curve / round shapes (OPTIONAL)
    Soldering tool
  18. Electric drill – for motor mount holes construction
    Drill

Happy Hunting!

 

” When an artist of talent makes a painting or a sculpture, he is always aware of the potentials and limitations of his materials; the better the artist, the more likely he is to know just what he can and cannot do with them.”

            – Bruce Cole