>All commercial aircraft flying into SNA have to be Stage 3. No hushkitted aircraft are allowed.
>Therefore there are no issues with older/nosier commercial aircraft.
Older.... correct, there are no "older" airliners permitted into SNA.
Noiser.... incorrect. SNA had more strict noise standards than FAA.
Without getting into the complexities of SNA noise standards (slot allocations/violations are way too complex for this pilot to fully understand), one must understand that the use of a Bleeds-Off take-off is utilized by some airlines to keep some aircraft quieter than "normal" to improve noise slot utilization. For example:
--AA MD80s [slot "A"] operate using maximum thrust and are weight limited to prevent slower than planned for climbs. Crossing the noise monitors lower than normal=higher than planned for recorded noise level. Bleed air remains ON at all times.
--AA 737s [slot "C" or "D", I don't recall] operate using special maximum thrust limit --"27K Bump"-- and are _sometimes_ weight limited. When approaching a weight limit, 737 pilots are authorized to use Bleeds-Off procedures in order to increase that weight limit slightly without a performance decrement (lower than expected climb). The result being a slight increase in gross weight permitted with the same recorded noise level at the monitors. I believe similar procedures apply for AA 757s [slot "C"].
OTOH, AA MD90s [slot "E"] operated at maximum thrust, _never_ weight limited and Bleed Air on all the time! Ahhhh, the advantages of being "Exempt" at SNA.
Confused? Welcome to government regulation.... California politics style.