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| When it was realized that the S.79 could no longer measure up to foreign medium bombers, SIAI Marchetti designed a version initially called the SM.79bis and then SM.84. With respect to the S.79, the SM.84 featured a different and more rational internal fuselage design and had twin fins to improve the gunner's field of fire to the rear. But the aircraft suffered from various difficulties and never equalled the brilliant performance of its predecessor.
 | A three-view drawing (1000 x 580) |
| MODEL | SM.84 |
| ENGINE | 2 x 746kW Piaggio P.XI piston radials |
| WEIGHTS |
| Take-off weight | 13288 kg | 29295 lb |
| DIMENSIONS |
| Wingspan | 21.13 m | 69 ft 4 in |
| Length | 17.93 m | 59 ft 10 in |
| Height | 4.59 m | 15 ft 1 in |
| Wing area | 61 m2 | 656.60 sq ft |
| PERFORMANCE |
| Max. speed | 432 km/h | 268 mph |
| Ceiling | 7900 m | 25900 ft |
| Range | 1830 km | 1137 miles |
| ARMAMENT | 4 x 12.7m machine-guns, 1600kg of bombs |
| carlo, e-mail, 06.06.2016 14:55 yes was a tri-motor if not an error the central one had rotating in different ways off the other two reply | | John, e-mail, 27.03.2008 04:03 The engine section says 2 x 746kW Piaggio P.XI piston radials, but this looks like a trimotor to me- am I missing something? reply | | rick, e-mail, 11.11.2007 08:01 teh plane was not good at all reply |
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