Drive for coaxial propellers 1

Drive for coaxial propellers 2

Drive for coaxial propellers 3

Drive for coaxial propellers 4

Drive for coaxial propellers 5

Drive for coaxial propellers 6

Drive for coaxial propellers 7

Drive for coaxial propellers 8

Face gear 6-Drive for coaxial propellers 12

Drive for coaxial propellers 9

Drive for coaxial propellers 14

Drive for coaxial propellers 10

Drive for coaxial propellers 11

Two coaxial cranks

Drive for coaxial propellers 13a

Drive for coaxial propellers 13b

Drive for coaxial propellers 15

Transmission between two coaxial shafts separated by a tube 1

Transmission between two coaxial shafts separated by a tube 2

Transmission between two coaxial shafts separated by a tube 3