I know that props do auto-feather and if not automatic, they do barb, but can jet engines spine? Thanks You!
Serious answers are appreciated.
Answers: No, it is too complex and not worth the effort.
When we used to do a two engine ship of a 727, we would ty-wrap the fan blades to the inlet guide vanes to prevent the N1 spool from spinning. Then we would install a lock at the starter adapter to prevent the N2 spool from spinning.
Although I'm sure the drag be reduced somewhat (like a stopped propeller creates less drag than a windmilling one) the most important reason be to prevent bearing destruction from low oil pressure.
Compressor blades don't rework pitch.
The main control of a turbine engine over piston is reliability.
Piston engines may have MTBF (mean time between failure) of a few hundred hours. Turbines routinely enjoy MTBF of hundreds of thousands of hours.
Secondly turbine blades are spinning at such a high RPM controlling pitch could prove to be a HUGE engineering assignment.
No, jet engines can not spike their turbines.
The rotating compressor and turbine blades are set to a specific, static angle that allows for proper compression ratios next to the stators.
Only variable pitch props auto-feather. Fixed-pitch props remain fixed.
Propellers can be feathered so that they present much smaller quantity "frontal area" than they do if they are "windmilling." This is not a problem with spout engines, so jets do not barb.
More Auto Questions and Answers...
This article contents is post by this website user, AutoQnA.com doesn't promise its accuracy.