Variable pitch propeller
Wallace R. Turnbull invented the variable-pitch propeller.
1843
W. R. Turnbull invented air plane pitch propellers Lot of other people invented this to but only w.r turnbulls invention was a success the other people invented propeller's which only could stay in the sky but would not last long.
Malcolm Turnbull's birth name is Malcolm Bligh Turnbull.
Renaldo Turnbull's birth name is Renaldo Antonio Turnbull.
Yes, he was.
Deanna Turnbull is 5'.
Roderick Turnbull has written: 'Turnbull on Grain' -- subject(s): Grain trade
Benjamin Turnbull is 5' 10".
Renaldo Turnbull is 6' 4".
Roz Turnbull was born in 1972.
Roz Turnbull is 5' 9".