Single-crystal blades are nothing new. They've been around since at least the early 80s.mandeb48 said:I found in Internet (wiki) that engine NK86 has single crystal blades. Somebody knows serious bibliography to confirm? Which another Soviet engine has single crystal blades?
[/size]Single-crystal blades are nothing new. They've been around since at least the early 80s.
I would have thought at least the AL-31 and RD-33 series but I honestly don't know. Like I said, they've been around for sometime.mandeb48 said: