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The SIAI-Marchetti SM.1019 was an Italian STOL liaison monoplane built by SIAI-Marchetti for the Italian Army and based on the O-1 Bird Dog.

Development

To meet an Italian Army requirement for a short take-off liaison aircraft, SIAI-Marchetti modified the design of the Cessna 305A/O-1 Bird Dog with a new turboprop engine and a revised tail unit. The prototype first flew on 24 May 1969 powered by a 317hp (236kW) Allison 250-B15C turboprop engine. It was evaluated against the Aermacchi AM.3 and was successful and won a production order for 80 aircraft.

Variants

SM.1019

Prototype with 317hp (236kW) Allison 250-B15C turboprop engine, one built.

SM.1019A

Production variant with 400hp (298kW) Allison 250-B17B turboprop engine, designated SM.1019E.I by the Italian Army, 81 built.

SM.1019B Four-built.

Specifications

General characteristics

• Crew: 2
• Length: 27 ft 11½ in
• Wingspan: 36 ft 0 in
• Height: 9 ft 4½ in
• Wing area:  174 ft²
• Basic Empty weight:  1,521 lb
• Gross weight:  2866 lbs – with ext. load 3,196 lb
• Powerplant: 1 × Allison 250-B17B turboprop engine, 298 kW (400 hp)
• Electric trim elevator & aileron
• Electric flaps—60 degrees.

Performance

• Maximum speed: 169 knts
• Optimal Cruising speed 145 knts
• Range: 730 nm
• Endurance: About 6 hours with the internal 88 gals or over 8 hours with drop tanks
• Service ceiling: 7,620 m (25,000 ft)
• Stall: Clean 53 KIAS.  40 – 60 degress flaps 47 KIAS
• Takeoff Distance: 280 ft.
• Landing Distance: 300 ft.
• Climb:  2000 fpm
• Service Ceiling: 25,000 ft.
• Fuel Burn:  20 gph

Armament