- Aug 16, 2015
- Reaction score
Even maximum thrust figures are rather murky, and as far as I know, no official thrust figures were actually given. Piotr Butowski has repeatedly reported Saturn stating that the izdeliye 30 will be 16-17% “more effective” than the AL-41F1 without specifying what that exactly means. If “more effective” refers to maximum augmented thrust, then it would produce about 166 kN, but again this is simply a static thrust value.
Compare the OPR and airflow for similar weight and size class engines like the F404, RB199, Snecma M88, or EJ200 and you'll see that OPR itself isn't directly correlated to mass flow. It all depends on the specific engine's design points. For an engine with similar dimensions as the AL-31F family, I would expect that the izdeliye 30 may have some increased airflow, but not hugely so. Mass flow itself is not something you specifically design an engine around.How would you increase mass flow through an engine of the same diameter if you don't improve the compression and thermal characteristics?
BTW I am addressing both exhaust velocity and mass flow, being both the main manageable factors of thrust as you say. It is obvious that improving any of those two is of immediate use in a supercruising engine.