Construction plan miniArrow

In 2017, FMT plan designer Gerald Perschler designed the Arrow flying wing and has been delighted by its outstanding flight performance ever since. As the one-piece wing, with a wingspan of 1.6 m, was often too unwieldy for everyday use, he has now developed the miniArrow – a slightly smaller version with a split wing – as a plan supplement for FMT. The challenge was to construct a swept flying wing using a ribbed structure with a profile thickness of approx. 8.5% that was sufficiently torsion-resistant given the shallow wing depth. This was achieved using a closed D-box. With the recommended motorisation, the miniArrow can climb vertically indefinitely and can also handle full throttle. The construction plan and building instructions are included in issue 06/2026 of FMT magazine. The construction plan is supplemented by a laser parts kit. This shortens the construction time and increases the enjoyment of building.

Technical specifications

• Wingspan:  1,520 mm
• Length:  510 mm
• Wing area:  25 dm²
• Weight:  from 590 g
• Wing loading:  from 23.6 g/dm²
• Wing profile:  Perschler design
• Chord:  from Cmo negative to Cmo positive, 8.5% thickness with -4° dihedral
• Sweep:  28°
• V-shape:  -2°
• Aspect ratio:  9.1
• Motor:  T-Motor F60 Pro V 1,750 kV
• Propeller:  GM Prop CFRP folding propeller 9×6
• Spinner:  CFRP 32 mm Ø, GM Prop F5J precision spinner
• ESC:  Flyclor Francy 2-30A BL ESC 5.0V/3A SBEC
• Battery:  Hacker TopFuel 3s 1,300 mAh 25 C / 30×19×95 mm
• Servos:  2× KST X08H V6
• RC functions:  elevator, aileron, motor