What is the rules
11-04-2007 | 06:09 AM
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From: Agawam,
MA
RE: What is the rules
Given your location, here is the FAI ruling:
5.1.2. General Characteristics of Radio Controlled Aerobatic Power Models:
Maximum overall span .................................................. .........................................2 m
Maximum overall length .................................................. .......................................2 m
Maximum total weight............................................ .................................................5 kg without fuel
Power source limitations: Any suitable power source may be utilised except those requiring solid
propellants, gaseous or liquefied gaseous fuels. Electric powered model aircraft are limited to a
maximum of 42 volts for the propulsion circuit.
Paragraph B.3.1. of Section 4b (Builder of Model aircraft) is not applicable to class F3A.
The maximum noise level will be 94 dB(A) measured at 3 m from the centre line of the model aircraft with
the model aircraft placed on the ground over concrete or macadam at the flying site. With the motor
running at full power measurement will be taken 90 degrees to the flight path on the right hand side and
downwind from the model aircraft. The microphone will be placed on a stand 30 cm above the ground in
line with the motor. No noise reflecting objects shall be nearer than 3 m to the model aircraft or
microphone. The noise measurement will be made prior to each flight. If a concrete or macadam surface
is not available then the measurement may be taken over bare earth or very short grass in which case the
maximum noise level will be 92 dB(A).
5.1.2. General Characteristics of Radio Controlled Aerobatic Power Models:
Maximum overall span .................................................. .........................................2 m
Maximum overall length .................................................. .......................................2 m
Maximum total weight............................................ .................................................5 kg without fuel
Power source limitations: Any suitable power source may be utilised except those requiring solid
propellants, gaseous or liquefied gaseous fuels. Electric powered model aircraft are limited to a
maximum of 42 volts for the propulsion circuit.
Paragraph B.3.1. of Section 4b (Builder of Model aircraft) is not applicable to class F3A.
The maximum noise level will be 94 dB(A) measured at 3 m from the centre line of the model aircraft with
the model aircraft placed on the ground over concrete or macadam at the flying site. With the motor
running at full power measurement will be taken 90 degrees to the flight path on the right hand side and
downwind from the model aircraft. The microphone will be placed on a stand 30 cm above the ground in
line with the motor. No noise reflecting objects shall be nearer than 3 m to the model aircraft or
microphone. The noise measurement will be made prior to each flight. If a concrete or macadam surface
is not available then the measurement may be taken over bare earth or very short grass in which case the
maximum noise level will be 92 dB(A).
