Continental Express conducts some training within 150 miles of my area,
and at night, I have heard them request and recieve blocks of airspace
(big pie wedges) that are thousands of feet deep for airborne
maneuvering. Im presuming that they are required to operate under IFR by
company or Fed/Op Spec guidelines, so to conduct these maneuvers in IFR
requires the chunk of airspace, hence the "block"

Dave

AES/newspost wrote:
Listening to channel nine on UA 1225 Denver-Reno yesterday, I heard
something like:

"Denver Center, Jackpot 123, can we request a block allocation
for 39 to 41?"

and then

"Jackpot 123, Denver Center, block allocation 39 to 41 approved."

["Jackpot 123" is made-up name since I don't remember actual name; maybe
it was "block assignment" instead of "allocation"; and I don't recall if
the wording was "Flight levels 39 to 41" or just the numbers.]

Anyway, I'm assuming that "Jackpot 1243" wanted to move up and down
freely between 39,000 and 41,000 feet seeking smoothest ride and best
fuel economy without having to make repeated requests; and Denver Center
was willing to approve this since nobody else was up that high anyway.

Is that likely the case?