How big is 6mm compare to one inch?
What does this mean 9x7 ?
Thanks
Bob


2, 3 and 4 bladed semi-scale props
Prop blades and Midparts

FS001 9x7 Single Prop Blade ..... $ 1.00
IN STOCK

FS101 Midpart 2 Blade Holder, 6mm ..... $ 1.00
IN STOCK
FS103 Midpart 3 Blade Holder, 6mm ..... $ 1.00
IN STOCK
FS104 Midpart 4 Blade Holder, 6mm ..... $ 1.00
IN STOCK


________________________________________

Complete 2, 3, 4 Blade Props


FS200 2 Blade 9x7 Prop Complete ..... $ 3.00
IN STOCK
FS300 3 Blade 9x7 Prop Complete ..... $ 4.00
IN STOCK
FS400 4 Blade 9x7 Prop Complete ..... $ 5.00
IN STOCK

There are 25.4 mm in one inch, so 6 mm is about 1/4 inch.

9x7 is a propellor size. It means it's 9 inches from tip to tip, and it will theoretically move forwards 7 inches per revolution. (Imagine a bolt turning one revolution in a nut, and the amount it moves axially is the pitch)

'9' is called the diameter, '7' is called the pitch.

So, a 16x4 is 16 inches from tip to tip, and it will move forwards (theoretically) 4 inches per revolution.

-David C.

Thanks David
Bob

Another way is to use 4 as a multiplier to convert metric. Gets you close. 6 mm times 4 is 24, or .240 ins = just under 1/4 in. as David says.