No Speed Restriction?
Hi all,
I know this may sound like a stupid Q but here goes;
Just curious what does 'No Speed Restriction' exactly mean when told after initial contact with a radar controller on a SID.
Seem to hear it mostly given to long haul aircraft and there the pilots that seem to ask about it the most.
Looking at the SID on which this particular long haul aircraft departed on i cant see any speed restrictions on the routing other than the standard 250kts below FL100.
The controller stated to him that there was no speed restriction on initial contact, the pilot asked him to confirm if their climb was unrestricted. To which ATC responded yes.
Iv not as of yet seen any speed restrictions given on any of the SIDs iv flown other then standard 250 kts below FL100.
Does this mean that you can accelerate above 250kts below FL100?
Do larger aircraft like to fly above 250kts to keep a lower rate of climb to have a constant climb to cruising altitudes rather than leveling off at intermediate levels?
Thanks.
Aka.