Salvaging of Blackburn Skua, L2896 Orkdalsfjorden

[haralny]

Hi everyone.
I'm a masters student on my forth year, studying on Underwater technology at NTNU Trondheim. In this semester we are salvaging more of the wreckage from the Blackburn Skua L2896 in Orkdalsfjorden. The main goal of the operation is to salvage the engine and propeller. We will also get more of the aircraft, if we have the time and resources to do so. The salvaged parts is to be sent to Bodø for preservation.
We are working on gathering all the information possible about the engine and the propeller. Many sources inform us that the engine is a Bristol Perseus XII, 9- cylinder, air- cooled, sleave valve, one row, radial engine.
We are wondering now witch materials they used in this engine? It’s pretty hard to estimate from the pictures. Anyone have an idea or a source? Perhaps someone have the drawings maybe from Bristol Engine Company or a datasheet?
We also encountered some problems confirming the pre- crash situation. Did the plain experience engine problems and hand to set down in the water, or was it shot down?
The operation will take place on 3. March (search) and 17. March (Salvage).
Thanx!
Harald