Originally Posted by
RatherBeFlying
Obviously the locusts are not as hard on the engines as Canada Geese.
What proportion of the locusts go into the core and how much effect do they have? Obviously the compressor was not clogged and perhaps they raised the EGT.
Extra work for the engineers after landing?
Many will centrifuge out and not go into the core (same principle as for heavy rain). The biggest problem with bugs (of any type) is the residue that builds up on the fan and compressor blades - messes up the aero properties and causes a loss of efficiency (hence the recommendations to do a periodic compressor wash).
However, even in a severe case, I can't imagine the impact being more than a few percent loss of efficiency.