FPVWRA SPEC WING AND COURSES
with rule revisions as voted upon by the FPVWRA pilots
SPEC WING CLASS
Wingspan: 36" +/- 1/2"
Airfoil: NACA 0014 or similar full symmetrical
Wing sweep: 12" +/- 1/2"
Chord: central-9", tip - 6" +/- 1/2" (includes elevons!)
Max thickness: 1.5"
Minimum thickness: 1/2"
Elevons: balsa or foam
Material: EPP, fan fold foam, or EPS
Motor: Cobra CP-2210 2200kv Motor
Battery: 3s 2200 - graphene and high voltage (HV) packs banned (new for 2018 season)
VTX: 200 mW 5.8GHz w/ raceband
Vertical stabilizers: winglets ONLY (new for 2018 season) Winglets: ABS, coroplast, or foam
Servos and ESC: pilots choice
Prop: APC 6X4
Spars: manufacturers choice not less than 1/2" behind leading edge.
ALL Spec-wings should conform to the "spirit" of Spec-wing racing (all wings primarily the same to ensure a level playing field for ALL pilots)
Forum threads about the FPVWRA spec wing:
SPORT WING CLASS
Airframe: Flying wing or delta wing (pods allowed)
Wingspan: 31.5-43.5inch from tip to tip (800-1105mm)
Construction: Foam construction only. Fiberglass and carbon spars permitted not less than one half inch behind leading edge. No fiberglassing or carbon covering of airframe permitted.
Pods, blunt sections, and fuselages may be foam or solid plastic construction.
No watt limit (new for 2018 season)
4 cell Lipo battery maximum 4.25 volts per cell max
Pusher motor configuration only
Multiple motors allowed
2 movable control surfaces
72MHz, 2.4GHz, 433MHz, and 900MHz control systems allowed
No flight controller or gyro (new for 2018 season)
3rd or 4th control surface (ie rudder/spoilers/canard): 75 watt penalty
Wingspan: under 31.5inch (800mm)
Maximum power: 300 Watts
Maximum cell count: 4 cell
Flight controller/stabilizer: 50 watt penalty
Any fixed wing configuration allowed including canards and tractor props
Wingspan: 47-60inch (1200-1525mm)
Max weight: 3kg (6.6lbs)
Foam construction only: no fiberglassing or carbon covering. Spars ok.
No Maximum cell count, no maximum motor power and fixed wing aircraft allowed.
Must be able to race for 4 minutes