Doug Robertson's Photo Gallery

1975 Piper PA-31-350 CHIEFTAN, one Lycoming TIO-540-J2BD 350 Hp and one Lycoming LTIO-540-J2BD 350 Hp counter-rotating engines, Hartzell constant-speed full-feathering props

1975 Piper PA-31-350 CHIEFTAN, one Lycoming TIO-540-J2BD 350 Hp and one Lycoming LTIO-540-J2BD 350 Hp counter-rotating engines, Hartzell constant-speed full-feathering props

1981 Piper PA-31 CHIEFTAN, one Lycoming TIO-J2BD and one Lycoming LTIO-J2BD 350 Hp each counter-rotating engines, Hartzell constant speed full-feathering props

1981 Piper PA-31-350 CHIEFTAN, one Lycoming TIO-540-J2BD and one Lycoming LTIO-540-J2BD 350 Hp each counter-rotating engines, Hartzell three blade constant-speed full-feathering metal props

1982 Piper PA-31-350 CHIEFTAN, one Lycoming TIO-540-J2BD 350 Hp and one Lycoming LTIO-350-J2BD 350 Hp counter-rotating engines, Hartzell constant-speed full-feathering props

1982 Piper PA-31-350 CHIEFTAN, one Lycoming TIO-540-J2BD 350 Hp and one Lycoming LTIO-540-J2BD 350 Hp counter-rotating engines, Hartzell constant-speed full-feathering props