2024-06-19 Fixed Wing Architecture Sync

• Attendance

  • @Nathan Green

  • @Daniel Puratich

  • @Maxwell Lou

  • @Nathaniel Li

  • @Smile Khatri

  • @Sohee Yoon

  • @Evan Janakievski

  • @Conall Kingshott

  • @Meghan Dang

  • @Alison Thompson

• Sysint

  • Fixed Wing 2025

• Mech

  • look at motors from T-motors, xoar, kde, vertiq. T-motors had the cheapest options with decent specs

  • KV rating = the RPM per volt. High KV → smaller props, less V req’d. Smaller KV → larger props, more thrust.

Propulsion requirements:

• Prop. diameter ~ 25 - 30% of wing span length

• Minimum thrust to weight ratio of 0.8 : 1

• Ideal power-to-weight ratio = 220 W/kg (for general and sport RC planes) Power to weight ratio in rc aircraft | The right motor and prop (joyplanes.com)

• Battery Voltage = 22.2 V

• Max current supplied must be 80% of the ESC’s rating Write From Scratch Using Grammarly's Generative AI (youtube.com)

Open

System requirements and Ideal Specs.

Open

Greener = more ideal

Open

• Cost wise, AT3520 KV720 and AT3520 KV550 are both good options.

  • KV720 gives 200g more thrust, but is less efficient in power consumption and thrust/watt

  • AT3530 580KV is a good option too, more thrust

• Investigate using drone motors later, they seem more efficient

• APC 14 x 7 inch prop is good. There’s no strong correlation b/w prop diameter and wingspan, the prop depends on the motor and weight of the plane. However, 25 - 30% of wing span is acceptable for prop diameter.

• EE

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• EFS

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