Scaleing up a seat by 1.3X makes it 1:1 scale (to a airliner passenger seat)

@ReinMcDeer It's a good idea to make the fuselages for both the length and wingspan, so that you know what each dimension is actually based off. Especially for aircraft with antennas or propellers. Also incase you accidentally read a number wrong lol

@ReinMcDeer thank you. Very helpful

1. Look up the dimensions of the thing you're building
2. Make a fuselage block that is either the length or width/wingspan of the thing (2 Fuselage block units = 1 meter)
3. Adjust the scale of your blueprint so the length or width/wingspan matches that fuselage block
4. Profit