Questions tagged [homebuilt]

Aircraft that are sold as kits and then assembled by the purchaser, rather than being factory-built and delivered in fully-functional form.

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How to select the most efficient airfoil for low speed flight?

What airfoil (or family) has the highest $C_L/C_D$ ratio at speeds in the $50\:km/h$ range. The use case would be an ultralight with a max speed of $50\:km/h$