Exceeding 250kts below 10000

[avbug]

By the way, some companies allow GPS units to be used by passengers as long as it is a receiver only.

You mean there might be someone sneaking on board with a GPS transmitter?

 

[cvsfly]

Re: Re: Re: questions

[B.... So it seems to be, Socal is inadvertently breaking the rules when allowing us to stay fast.
.... [/B]

I would say it's not them, but you who are breaking the rules. It's not ATC's job to tell you the rules and they don't have an immediate readout of your airspeed (groundspeed). ATC's job is to keep metal to metal contact. They usually don't have time to play policeman until there has been a loss of separation, then their a$$ is on the line as well and we all know which way the stuff rolls. Some of the reasons for 250 > 10k have been given except the main one: To enhance the see and avoid concept for whatever its worth. That is also the main reason for MOAs and MTRs: Look out for fast planes you may not be able to see and avoid. Perhaps it doesn't make sense anymore in a controlled airspace like Class B. I suspect that is why they are experimenting with it in HOU/IAH.

 

[Vector4fun]

JJFO,

Varicam has it right, we have a Ground Speed readout at all times. It's OK when you're in fairly steady state flight, but can be pretty useless when the target is turning and slowing at the same time, such as a 120 deg turn to intercept final. Takes about four miles of track to settle down. We often ask to see how much difference there is at the moment between GS and IAS. Usually only 20 kts or so on the finals, but can be more. Love those winter days when the wind is blowing 40 kts from the west at 3500', but 20 kts from the SE at the surface.

I can't speak for SoCal, but if a military pilot asks me for 300 kts, I'm probably going to assume he needs it for operational reasons, and I'd be reluctant to say no. On the other hand, something bad happens, I'm gonna say it was YOUR choice, not mine. I know the military has a waiver. I used to see some CRAZY #@$& done down low years ago, but much less in the last decade or so. 300 kts for the fighter and advanced trainer types is pretty standard.

A Marine in a Fox-4, AND in a hurry; now THAT was scary! We'd get phone calls from all over town when those guys hit the break..