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-   -   High altitude flying (https://www.pprune.org/biz-jets-ag-flying-ga-etc/353826-high-altitude-flying.html)

QF411 7th Dec 2008 01:22

High altitude flying
 
I don't know all that much about the performance of most business jets today, but I have read that they can cruise at altitudes in excess of 50,000 feet! Would anyone who has flown that high and has pictures be willing to post them on this thread?

AdamFrisch 7th Dec 2008 05:24

Many of the high end biz jets are certified to 51.000ft. Lear 60XR is one of them, for instance. Don't think they cruise up there that often, though. Maybe on the odd transatlantic/pacific hop.

DA50driver 7th Dec 2008 14:13

FL510
 
The Gulfstream 5 and 550 are certified and able to fly at FL510. I always chicken out at FL490. Nice and quiet up there, not much traffic conflict at all. Sorry, don't have any pics for you.

Bushfiva 7th Dec 2008 14:41

Around 25,000 meters. Not a bizjet, though.

http://www.bushcat.com/mpics/curvede.gif

http://www.bushcat.com/mpics/m25river.jpg

Mike Echo 7th Dec 2008 15:47

We had our Learjet 40 at 510 during the delivery (and got the 510 tie pin) but it certainally wasn't going to stop there long enough to cruise.
M.E.

Flintstone 7th Dec 2008 16:21

I've already had the snip so don't need to go that high.

NZ X man 7th Dec 2008 18:30

high altitude
 
Went to FL510 at night in the Citation 10, but you would not really hang out there, the aircraft was fine at 490 but just slowed up considerably at 510. We did it just to say we had.
Once there we requested lower.
Cheers

Der_Fischmeister 7th Dec 2008 22:01

HI
 
Been There...seen It ...want Children At A Later Point So Watch The "rays"..
Cheers

spacecadet 8th Dec 2008 02:24

What photo's do you want? Outside like the ones posted above or photo's of the instruments? Flying on Friday from SAV to LTN so will try to take some for you.

QF411 8th Dec 2008 04:55

Yeah just photos outside of the horizon and sky. I love the deep dark blue sky you see up at that altitude.

hitmanishere 8th Dec 2008 07:12

BushFiva!!!
 
Did you personally take those pics or got it off the net???:} And if you did get it while flying,what on earth where you doing at 25000m????:eek:

JB LFPN FLYER 8th Dec 2008 07:51

This video isn't bad at all for showing high altitude flying .

YouTube - MIG-25 - Earthviews - To the edge of Space

Enjoy

Bushfiva 8th Dec 2008 07:56

I took them with a little Nikon APS camera a while back. I was "doing" M2.4 :}

trubru 8th Dec 2008 18:49

Active radiation monitor
 
Is there anyone here that can recommend a product to actively monitor cosmic radiation in the cockpit?

atilamelo 1st Aug 2009 16:36

Hey, how are you?
 
I wanted to ask you how to get the tie pin for the FL510, I was up there a week ago.

Thanks.

hawker750 1st Aug 2009 16:56

TIE your b...lls in a knot and put a PIN in them, as they w'ont work any more but you got your tie pin

fastjet45 1st Aug 2009 21:18

I do hope you were not doing 2.4 from the pics it looks as though you were over the London City area??? if not London why were you doing 2.4 over land :O last time we we were allowed that sort of speed over land was departing the coast line at 45 degs over the North sea on a high cap intercept.

galaxy flyer 2nd Aug 2009 03:15

hawker750

Dramatic, but hardly the case. Are Concorde drivers sterile? How about astronauts? I have several friends that have spent hours upon hours at high levels (FL410 and above) without apparent problems. Their kids are testament.

GF

redsnail 2nd Aug 2009 07:20

Trubru,

Is far as I know unless you're flying at higher than FL490 then there's no requirement for cosmic (aka ionising) radiation monitors.

However, there is a requirement for aircrew to be advised of CR if there is a risk of greater than 1mSv a year exposure. ie pretty much any one flying a jet above FL300. 6mSv a year means individual monitoring and roster changes etc.

We use "EPCARD" and there's also "CARI"

thomi1968 2nd Aug 2009 11:07

@AdamFrisch: "Many of the high end biz jets are certified to 51.000ft. Lear 60XR is one of them, for instance."

if you bring the Lear60 to 510 without a Stall, please tell me, i will recommend you for the "Bill Lear Award"! :ok:


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