Piaggio P.XV RC.45 engine data??

[Piper106]

I have checked my library and the net and have come up empty for data on the Piaggio P.XV RC.45 radial engine.

Anyone have the basic data like bore and stroke, diameter, and weight??

 

[sibboh]

Bore, stroke, displacement and diameter were the same than that of the Piaggio P.XII. I don't know the weight.
Bore: 146 mm
Stroke: 176 mm
Displacement: 53 L
Diameter: 1410 mm

I have no manuals about RC.45. But i took some data from different "Aerei nella storia" magazine numbers. However some data are contradictory.

P.XV RC.45
takeoff: 1500 cv
normal continuous: 1280 cv (2250 rpm, 0 m)
normal continuous: 1500 cv (2250 rpm, 4500 m)

Other versions:
P.XV RC.50/2v
takeoff: 1650 cv
normal continuous: 1400 cv (0 m)
normal continuous: 1475 cv (5000 m)

P.XV RC.60/2v
takeoff: 1600 or 1700 cv
normal continuous: 1280 cv (2250 rpm, 0 m)
normal continuous: 1500 cv (2300 rpm, 5600 m or 6000 m)