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[Mick]

You can see all the magnesium parts in the photo in one of the earlier post as they are all the ones covered in white powder. .
Congo

... in fact I believe the white powder that you can see is all that remains from the magnesium cam covers after 67 years buried in the ground ...

[congo]

You can see all the magnesium parts in the photo in one of the earlier post as they are all the ones covered in white powder. .
Congo

... in fact I believe the white powder that you can see is all that remains from the magnesium cam covers after 67 years buried in the ground ...

You are correct though a small part of the rocker cover remains, likewise for the supercharger case. Its interesting to note that the anoditic coatings that the Germans used were quite good whereas their conversion coatings for magnesium left a lot to be desired. Once the mag starts to go there is very little you can do to stop it. Even when it is not buried or submerged. Their conversion processes for aluminium were comparable to the chromic acid anodizing that was used on Naval aircraft during WWII. They were also quite fond of using the synthetics like Bakelite and Phenolic in their ac construction not to mention bonded paper also as in the leading edges of the TA-152 horizontal stabilizer.

[Thunda]

If you take any pleasure from high quality engineering (like me) then those '40s aero engines- radials and inlines- are truly objects of beauty.

Thanks for the photos, congo.

[congo]

If you take any pleasure from high quality engineering (like me) then those '40s aero engines- radials and inlines- are truly objects of beauty.

Thanks for the photos, congo.

It was my pleasure, after playing with that stuff for thirty years it is kind of burned into my brain. I literally ate slept and breathed aircraft.