Coa764 From United States of America, joined Feb 2004, 328 posts, RR: 3 Reply 8, posted (9 years 5 months 4 days 1 hour ago) and read 9211 times:
read in a book that 39,000 is pushing the envelope
What book are you reading and what envelope? Max altitude is aircraft specific and can be found in the AFM (Aircraft Flight Manual). Max altitude can be reached and flown with relatively no problem depending on what kind of payload your carrying.
[Edited 2004-07-06 08:03:48]
Please oh please Mr Moderator Nazi, dont delete my thread.
LHcapt2007 From United States of America, joined Mar 2004, 235 posts, RR: 0 Reply 11, posted (9 years 5 months 3 days 22 hours ago) and read 9064 times:
How did you get a RR of 23 asking questions like these? (really)
If this is sarcastic, I can see your question's validity (if most of the flights you've heard of are all FL330). Translating your question: almost everyone flies @FL330, can't they fly at other altitudes?
We all would assume you've heard of airliners @FLs 27,29,31,37,39,41,etc., if not, that is quite strange not to mention oblivious(especially for RR23).
Duke From Canada, joined Sep 1999, 1151 posts, RR: 2 Reply 12, posted (9 years 5 months 3 days 22 hours ago) and read 9038 times:
I don't see what's wrong with this question. I too have wondered for a long time about the ceiling of planes. Long ago I read in a 1960s-vintage book that airliners fly to 40,000 feet. But later most quotes I heard were lower, except of course for Concorde. Would a 707 or DC-8 ever fly to 40,000 feet?
Mconway From , joined Dec 1969, posts, RR: Reply 16, posted (9 years 5 months 3 days 20 hours ago) and read 8912 times:
In 12 and a half years at Gander Radio, I can't ever remember a commercial airliner flying above FL410 (ie FL430 since FL420 is not approved) on the Atlantic, not to say it has not happened. For bizjets on the pond, FL470 is rare, most often by the Citation X. Might even have had one one day at FL490 but not really sure on that one. I remember a bizjet a few years back looking for FL470 and was told unable higher due to Concorde traffic. The Concordes normally flew at F450B600. Every now and then we get a U2 making the crossing and the stated altitude is VFR above FL600.
MIASkies From United States of America, joined Jun 2004, 1338 posts, RR: 1 Reply 21, posted (9 years 5 months 3 days 19 hours ago) and read 8776 times:
I have flown at 39,000 feet on the following routes:
1. LGA-FLL -> AA -> 757-200 -> 39,000FEET. Their was a bad storm front coming in and the pilot climbed from 33000 to 39000, we flew 39000 all the way down to Florida.
2. MIA-CDG -> AA -> 767-300ER -> 38,700FEET. We reached this altitude and if I recall correctly a bit more over the atlantic near the icebergs. As noted by the track map given to me as a gift by the flight crew.
AUAE From United States of America, joined Apr 2004, 296 posts, RR: 4 Reply 23, posted (9 years 5 months 3 days 18 hours ago) and read 8750 times:
This is a very good question, and you guys shouldn't berate TrijetFan1 for asking it.
Within the commercial world it may seem as though 39k ft is some what of a limit. This only has to do with the design of the planes. Early aircraft 737, 727 ect, did not have enough engine performance to get to really high altitudes. When the really high bypass engines came around, aircraft could fly much higher. Currently, seems like about 42k ft is the ceiling for most commercial aircraft, except for RJ's. RJ's tend to have ceilings under 30k. Again, this all has to do with engine performance, cruise performance and certification limits.
Theoretically there is no limit to how high you could fly, it just gets to be very expensive to design a plane to fly there.
Air transport is just a glorified bus operation. -Michael O'Leary, Ryanair's chief executive
Worldoftui From Sweden, joined Aug 2007, 0 posts, RR: 0 Reply 24, posted (9 years 5 months 3 days 18 hours ago) and read 8750 times:
Do Any Airliners Fly Above/below 33,000
Yes. When they take off and land.
Sorry. Couldn't resist!
But seriously, airliners fly at the most economical altitudes based on sector length, weather, loads and traffic. Higher altitude means thinner air means less fuel required to push the aircraft through the air.
Highest I think I have been is 41,000, in a QF744, QF 738 and a few times on UA 777's.
25 NoelG: The altitude is also based on the direction in which the aircraft is flying. In general, ICAO rules the following: Below FL290, the altitudes for IFR
26 Solnabo: One word: CONCORDE! waaaay over 33.000 ft/ 10.000 meters
27 Modesto2: NoelG, thank you! I don't understand how all these people could answer this question without outlining the ICAO rules for flight levels and headings.
28 Delta07: Just a side-step, but I thought I would mention it anyway. I've found from tracking DL flights from and to CLT that they are able to reach FL300 easil
29 Bobnwa: TriJetFan1, Suggest you re-state the question. To answer your original question, yes airliners fly above/below 33,000 feet all the time.
30 Warszawa: Any flights around FL410 to FL430 are VERY very rare cruising altitudes. Generally typical cruising altitudes in the United States are: [WestBound] 39
31 AC330: I fly on Air Canada Jazz Dash 8's all the time and depending on the length of the flight, they usually are cruising anywhere from 13 to 23,000 feet. A
32 LTBEWR: I can recall being on trans ocean flights where the crusing altitude was announced at up to 43,000 ft., and many times at 36,000-41,000 ft ranges. Wou
33 IL76TD: I'm not a complete expert, but like Warzsawa said, commercial flights have legal FL caps at 41,000 feet (sometimes higher but no more than 43,000 feet
34 Americanairfan: of coure planes fly below 33,000 feet on my short hop from SJC-LAS I flew at 29,000 feet and the highest ive ever flown is at 37,000 feet due to bad w
35 InnocuousFox: This is the current A/C over the US and southern Canada that are over 40,000 feet. Notice that many are private jets but there are some commercial one
36 AGrayson514: A lot of aircraft are certified to fly above 45,000 feet, but its not always worth the fuel burn to get up that high, so cruise is usually between 30
37 SLCPilot: Some "expert" will have more specific knowledge, but I think the 747SP was certified to climb to FL450. If it's anything like the Citation X (certifie
38 EnoreFilho: It depends... Like when the old planes should make the "step-climb". I flew in a RG DC10-30 from MIA to GRU, and in the first hour we flew at FL290. L
39 Saigonhouston: As I remembered on Eva Airways 747-400 (TPE-LAX) as we just about to passed Midway island, the cruising altitudes on the TV screen showing close to 50
40 ATA L1011: Flown one of our L1011-100's at 41,700 2 years ago, the highest I've been on a commercial liner.
41 Oneworldman: Actually I was on an Asiana Flight from Seoul to JFK and for most of the flight we cruised at 45,000 feet.
42 Md80fanatic: Turbofans have a really difficult time above 45,000.....Not much air to "grab" a hold of, or to push against.
43 SAS-A321: The 737NGs are limited to FL410 according to the AOM (Aircraft Operating Manual).
44 7E72004: I know the LAN-DTW and IND-CVG flights do not fly that high and they are mostly on mainliners.
45 Gib: I was on a 2 week old DL Seven-Six, WAY back in like 1986, ATL-MCO, and we hit FL430.......just to add to the comments....! VFR and Tailwinds! Gib ATL
46 Samurai 777: While on a WestJet flight from Winnipeg to Edmonton on a 737-700 in May this year, I was told by the FO that we were flying at FL410, or 41,000 feet.
47 Smcmac32msn: I know that CRJs can fly at FL410. But I think the stats that airlines give you are all empty/light aircrafts. Lear Jets can easily get over FL350.
48 Benjamin: Do Any Airliners Fly Above/below 33,000 You've gotta be kidding. Is this a real question? The answer is that EVERY airliner flies either at, above or
49 Andz: I remember flying in the jumpseat on an SAA 747SP from JNB to DBN and we went up to FL410, the total flight time was less than an hour. When I asked t
50 Starlionblue: Turbofans have a really difficult time above 45,000.....Not much air to "grab" a hold of, or to push against. Yes indeed, but there's also "coffin all
51 Flymia: Yea most Long Haul Oceanic flights. Atleast with the 747-400 Go up to FL280 then a little later with 70% fule maybe FL350 then with 40% fuel FL410-430
52 Srbmod: There are some airliners that actually fly below 10,000'. Any unpressurized a/c cannot fly above 10,000' without the use of oxygen bottles. So a/c lik
53 Fly_emirates: when we fly the 777-300 from Dubai to Doha (DXB-DOH) usually we cruise at 25,000 ft for just 15 minuites after we reach that altitude then we start de
54 KDTWFlyer: As I remembered on Eva Airways 747-400 (TPE-LAX) as we just about to passed Midway island, the cruising altitudes on the TV screen showing close to 50
55 Jderden777: Srbmod: maybe i'm missing something here but last time i checked the FARs the "required minimum flight crew" has to have oxygen for anytime over 30 mi
56 TriJetFan1: Really, if I could restate my question, I meant how many airliners fly above the 33,000 mark. O, well I guess it did sound stupid but I think we have
57 Brettbrett21: The Air Berlin flight I was on last October reached 39 000 ft. I had no idea we would climb this high as the flight was between STN and TXL on a 738 w
58 KDALAggie: Never the less I still think is was a proper question. I had always assume that there was a general belief that cruising would stay at or under 39,000
59 Srbmod: maybe i'm missing something here but last time i checked the FARs the "required minimum flight crew" has to have oxygen for anytime over 30 min at 12,
60 InnocuousFox: As you can tell from the screens I posted, there are a LOT of 737-700s cruising around at FL410.
61 ATCisgreat: I'm working the airspace above north-west Germany as Air Traffic Controller between FLs 250 up to unlimited. FL 330 south-/eastbound and FL 340 north-
62 Cpharris5514: A few years ago I was on an AA 762 from SFO-ORD, with beautiful weather the entire flight -- and cruising at FL410. I remember we were also about 30 m
63 DC3CV3407AC727: flew the 727-200 BWI-PHL, at 10,000, when very light have had her up to Fl 390 which felt like the edge of space. flown the DC-3,at cruise altitudes 2
64 Soulman: I seriously doubt the story involving the Eva Air 747-400 @ FL500. If you have the slightest pressurization problem at that level, you're as good as d
65 Bar032: The reason why a 747 doesn't fly at FL500 is not pressurization-loss issues. It is the inability of the a/c to fly that high. And regarding step-climb
66 Lucifer: Aircraft will step climb throughout the duration of a longhaul flight, since the weight decreases as fuel is burnt. Height may often be limited by a h
67 JJMNGR: TAM´s Airbuses normally fly the long haul routes (A332) on FL410!!!
68 SLCPilot: Jderden777, I respect the fact you quoted the regs and gave a source, that's a (good) quality that not all people have when citing "facts" in an open
69 MHTMDW: I recall being on a TWA 707 ORD-BOS in early 1983 and recall the captain anouncing that we were cruising at 41,000 ft. I remeber thinking this is as h
70 Tasha: I think the highest I have ever been was 43000feet on a KLM MD11 from MEM-AMS. That too was for a very short time as the Captain was flying over the t
71 BoeingPride800: Yes, they do fly above 33,000. I've flown on US Airways Metrojet (Boeing 737-200) and our cruising ALT. was 36,000 ft. Another time I was on TransMeri