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Both ideas would require a rigid Baseplate for mounting to airframe

  • Aluminum plate

  • Carbon Sheet

  • 3D printed

Option

Basics

Possible Materials

(+) / (-)

  1. (more composite-condusive)

Rigid Spar

CNC cut core

  • recesses for electronics/mounting points

  • lips at recess edges to aid cover alignment

Skinning

Spar:

  • carbon sheets

  • aluminum plate

  • basswood

Core:

  • Foam

  • Balsa

Skinning:

  • composite fabric

  • “Covering Film” (basically heat-shrink)

(plus) easier to build

  • less hands-on experience required

  • minimal tools required

(minus) Cost

  • more materials/ CNC time required

(minus) Weight

  • likely heavier due to less empty space

  1. (old-fashioned RC)

Spars & Ribs

  • mechanical locking features (notches)

Leading edge re-inforecement

  • CNC cut or hand sanded

Skinning

Spar/Rib:

  • Carbon Sheet

  • Basswood

Reinforcement:

  • Balsa

  • Foam

  • 3D Printed

Skinning:

  • Covering Film

(plus) cost/weight

  • less material required for similarly sized wing

(minus) Tricky

  • delicate hands-on process requires certain skills and tools