Q500 Eurocup 2008

 Class Q500 (Quickie 500) Radio Control Pylon Racing Model Aircraft

 Q500.1 Definition

 The regulations of the "FAI Sporting code section 4 - Aeromodelling volume F3D radio control Pylon racing" have to be used, unless this document specifically indicates otherwise.

 The term “commercially available for everyone“ means, that an identical product can be obtained within 6 weeks, after placing the order, by any consumer at a price that is independent of who the consumer is.

 All prices listed are without value added tax. For international orders these prices are without import tax.

 Q500.2 Technical Specifications

 Only model aircraft of conventional design powered by a single engine are allowed, with a box section square fuselage, one forward wing and one aft stabilizer; the design of the stabilizer is free.

 A model aircraft shall be considered a tailless aircraft, if the ratio of its wingspan to its overall length is greater than 2:1. The “overall length” of the aircraft, for purposes of this measurement, is the distance from the front of the propeller to the trailing edge of the rearmost movable tail surface. The aircraft doesn’t need to have the general lines of a full size aircraft.

 The Engine and engine mount must be attached on the front of the fuselage. No cowling or streamlining of the engine or silencer is permitted. The silencer must not be inserted into the fuselage.

 Q500.3 Drive train

 Q500.3.1 Motor

 The Motor shall have only one front-intake, and one side-exhaust. A supercharged engine, i.e. a compressor or turbo engine is not permitted. Only glow plug engines are permitted.

 Q500.3.2 Motor Shut-off

 The motor shut-off function must be a separate function. Remote mixture control is not allowed.

 Q500.3.3 Silencer

 a) Primary Silencer

Tuned pipes are not permitted. A primary silencer shall also be considered a tuned pipe, if its overall length is more than 260mm. This overall length is measured from the middle of the glowplug through the centre line of the primary silencer system to the end of the primary silencer system.

 If the tank is pressurised, only the pressure coming from the silencer may be used. Other pressure producing

systems are not allowed.

 b) Secondary Silencer

A secondary silencer as described in Annex 5P (Volume F3D) may be used. The secondary Silencer shall not be included in the measurement of the pipe length of the primary silencer.

 Q500 Eurocup 2008

 Q500.3.4 Propeller

 The propeller shall have a minimum diameter of 222,2mm.

 Only propellers which are “commercially available for everyone“shall be used.

 The maximum price for a propeller is 7 EUR. The dimensions must be indicated on the propeller by the manufacturer.

 The propellers must be manufactured in an injection molding process.

 Homemade propellers are not permitted.

 The recommended RPM limit given by the manufacturer must not be exceeded during flights.

 Changes to the propeller blades are not permitted. For the purpose of balancing, changes shall be done to the thickness of one blade only. (Removal of material/mass). Edges and tips may be sanded, but only as much as necessary to remove sharp molding flash (deburr).

 Q500.3.5 Propeller Spinner

 The maximum diameter is 35mm. A minimum diameter is not required.

 The spinner must be rounded at its front, the minimum radius is 4,5mm.

 The spinner may be made of metal only.

 Q500.4 Fuselage

 Q500.4.1 Cross section

 The fuselage shall have a rectangular cross section over the whole length.

 The fuselage sidewall shall be parallel to the vertical axis of the model aircraft.

 A maximum radius of 6,5mm is permitted for the corners of the fuselage.

 Within the wing chord there must be a minimum height of 89 mm and a width of 73mm. At the point of measurement for fuselage height, the wing profile thickness shall be considered as part of the height. Width and height points need not to be at the same point.

 A minimum cross sectional area is not prescribed.

 Canopies and turtle decks are acceptable but shall not be included in width or height measurements.

 The front firewall shall be a rectangular, flat plate measuring at least 57 mm by 57 mm.

 Q500.4.2 Fairing

 Fillets or fairings between the fuselage and wing are not permitted.

Q500 Eurocup 2008

 Q500.4.3 Landing gear

 Only a non retractable landing gear is permitted.

 The landing gear shall be fixed on the outside of the fuselage or the main wing. The minimum track of the main wheels is 177,5mm.

 Wheel fairings, i.e. Wheel pants, or fairing between the landing gear and fuselage, ie. Fillets or similar, are not permitted.

 Nose or tail wheels, if used, may be streamlined.

 Q500.5 Main wing

 Q500.5.1 Surface Area

 The main wing must have a rectangular layout over at least 1206,5mm. Total area of the main wing must be at least 32,258 dm² (500 sq-inches).

 The area of the aft stabilizer does not enter the calculation of the minimum surface area.

 Q500.5.2 Wing span

 The wing span must be a minimum of 1270mm and a maximum of 1320mm.

 Q500.5.3 Wing thickness

 Wing thickness must be at least 30,15mm over a wingspan of at least 1206,5mm.

 Q500.6 Weight

 Weight less fuel, but including all equipment necessary for flight must be at least

1700 g