Search found 6389 matches

by timz
Tue Jul 17, 2018 8:42 pm
Forum: Civil Aviation
Topic: Was it an MD-80 or a 727?
Replies: 3
Views: 1373

Re: Was it an MD-80 or a 727?

4/93 OAG shows two PHX-CLT nonstops, a morning 733 and a noon 734. One US* flight a day PSP-PHX, a Beech 1900. Just says US Air Express.

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by timz
Tue Jul 17, 2018 5:34 pm
Forum: Technical/Operations
Topic: How does the lack of crosswind runways at airports without them not cause issues?
Replies: 23
Views: 2447

Re: How does the lack of crosswind runways at airports without them not cause issues?

IFlyVeryLittle wrote:
TPA has parallel 36s and 18s and was originally laid out in the early 1950s.

TPA opened with no parallel runways.

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by timz
Tue Jul 17, 2018 5:27 pm
Forum: Civil Aviation
Topic: Top ten US airports by operations June 2018
Replies: 8
Views: 1407

Re: Top ten US airports by operations June 2018

Those are the top ten by airline operations?

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by timz
Tue Jul 10, 2018 6:52 pm
Forum: Technical/Operations
Topic: Runway slope difference
Replies: 13
Views: 1105

Re: Runway slope difference

If you're on a 3-degree descent to a runway with a 1% slope, it will look quite different from the same runway in the other direction.

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by timz
Mon Jul 09, 2018 9:44 pm
Forum: Civil Aviation
Topic: 747-100 vs 777-9
Replies: 19
Views: 5826

Re: 747-100 vs 777-9

Looks like a Comet 4 burned around 5-6 kg per km in cruise. At the same seat pitch, it carried... a quarter of a 787-9's seat count?

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by timz
Mon Jul 09, 2018 5:55 pm
Forum: Civil Aviation
Topic: 747-100 vs 777-9
Replies: 19
Views: 5826

Re: 747-100 vs 777-9

IATA claims the 787 burns 18% of the fuel that a Comet 4 did? Per passenger-km, they maybe meant?

Sounds unlikely, if you're comparing them fairly, with the same seat pitch on the same trip. I'll see if Stroud's book says how much fuel a Comet 4 used NY-London. How much does a 787 use?

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by timz
Sun Jul 08, 2018 9:57 pm
Forum: Technical/Operations
Topic: How does the lack of crosswind runways at airports without them not cause issues?
Replies: 23
Views: 2447

Re: How does the lack of crosswind runways at airports without them not cause issues?

Obvious question: what's different about today's airliners? In 1940-1950 no one would build a major airport with one-direction runways-- apparently a Constellation or B377 couldn't handle crosswinds as well as a 777. Why not? Wonder what airliners used the N-S runway at LAX. 100 ft wide as I recall-...

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by timz
Sat Jul 07, 2018 9:07 pm
Forum: Civil Aviation
Topic: Aeroflot TU-104 next to UA DC-7: where?
Replies: 10
Views: 3018

Re: Aeroflot TU-104 next to UA DC-7: where?

One of the trade magazines mentioned that all UA's DC-7s had prop spinners by the end of... 1956, I think it was, but might have been 1957.

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by timz
Fri Jul 06, 2018 8:35 pm
Forum: Civil Aviation
Topic: Could Pan AM have flown some in state domestic routes
Replies: 60
Views: 5285

Re: Could Pan AM have flown some in state domestic routes

Nonstops from LAX in 8/79:

1/week DC8 Bogota
1/week DC8 Guayaquil
3/week DC8 Lima

1/week 747 Bogota
2/week 747 Santiago

All the DC8s originated in SFO.

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by timz
Fri Jul 06, 2018 2:10 pm
Forum: Civil Aviation
Topic: Could Pan AM have flown some in state domestic routes
Replies: 60
Views: 5285

Re: Could Pan AM have flown some in state domestic routes

Sure nuff, the 1979 timetable shows a weekly DC8 nonstop Guayaquil to LA. It lists the LAX-SFO DC8s with no indication that you couldn't buy a ticket.

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by timz
Fri Jul 06, 2018 1:52 am
Forum: Civil Aviation
Topic: Aeroflot TU-104 next to UA DC-7: where?
Replies: 10
Views: 3018

Re: Aeroflot TU-104 next to UA DC-7: where?

Guess two rows of seats sat atop the wing spar?

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by timz
Fri Jul 06, 2018 1:25 am
Forum: Civil Aviation
Topic: Aeroflot TU-104 next to UA DC-7: where?
Replies: 10
Views: 3018

Aeroflot TU-104 next to UA DC-7: where?

https://www.flickr.com/photos/sdasmarch ... 9/sizes/o/

A Tu-104 came to Idlewild about 1 July 1959 -- what other possibilities?
-->

https://www.flickr.com/photos/sdasmarch ... 9/sizes/o/

A Tu-104 came to Idlewild about 1 July 1959 -- what other possibilities?

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by timz
Thu Jul 05, 2018 8:06 pm
Forum: Technical/Operations
Topic: Hot & High vs. Cold & Higher Takeoff
Replies: 10
Views: 960

Re: Hot & High vs. Cold & Higher Takeoff

if the air temperature is at ISA (standard temperature) for that altitude, then density altitude and actual altitude should be about the same. If temperature and pressure are standard, then density will be standard. If temperature is standard and pressure is 3% higher than standard, density will be...

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by timz
Thu Jul 05, 2018 7:57 pm
Forum: Civil Aviation
Topic: Could Pan AM have flown some in state domestic routes
Replies: 60
Views: 5285

Re: Could Pan AM have flown some in state domestic routes

HAWAIIAN932 wrote:
Braniff DID allow passengers to fly just LAX to SFO because I took the flight a couple of different times just to fly Braniff. The flight originated in Ecuador and then nonstop to LAX and on to SFO.

When?

Nonstop from Guayaquil to LAX? On a DC-8-62, or what? When?

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by timz
Tue Jul 03, 2018 5:33 pm
Forum: Civil Aviation
Topic: Could Pan AM have flown some in state domestic routes
Replies: 60
Views: 5285

Re: Could Pan AM have flown some in state domestic routes

You're right-- I forgot that things changed after the Panagra merger.

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by timz
Mon Jul 02, 2018 11:43 pm
Forum: Civil Aviation
Topic: First bizjet?
Replies: 7
Views: 945

First bizjet?

What and when was the first business jet sold to a civil customer? Jet Commander? DH 125?

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by timz
Mon Jul 02, 2018 5:59 pm
Forum: Civil Aviation
Topic: Could Pan AM have flown some in state domestic routes
Replies: 60
Views: 5285

Re: Could Pan AM have flown some in state domestic routes

Could Braniff carry local passengers JFK-MIA in, say, 1970? No, because they didn't fly that route. A Braniff plane could fly the route, operated by Eastern, and it could carry local passengers. I'm guessing it always had been allowed to, since the interchange flight started in the 1950s. Probably t...

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by timz
Mon Jun 25, 2018 5:45 pm
Forum: Civil Aviation
Topic: Continental DC-10 routes to Hawaii in the 80's
Replies: 75
Views: 6837

Re: Continental DC-10 routes to Hawaii in the 80's

Looks like when CO started JFK-HNL in 1986 it was their only flight out of JFK. Airport Activity Statistics shows it as a DC-10-- did CO have any 747 flights in 1986?

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by timz
Sun Jun 24, 2018 8:27 pm
Forum: Civil Aviation
Topic: Continental DC-10 routes to Hawaii in the 80's
Replies: 75
Views: 6837

Re: Continental DC-10 routes to Hawaii in the 80's

airzim wrote:
Nonstop EWR-HNL came later when the runway at EWR was lengthened.

OAG says CO was to start JFK-HNL in October 1986; 11/87 OAG shows EWR-HNL instead..

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by timz
Sun Jun 24, 2018 8:22 pm
Forum: Technical/Operations
Topic: How does the MD-80 climb better than pretty much every other aircraft?
Replies: 49
Views: 6048

Re: How does the MD-80 climb better than pretty much every other aircraft?

rate of climb depends on lift and T/W. That's the problem-- none of us knows the aircraft's thrust in the climb. Based on static sea-level thrust, a 767-300 would climb just as well as a B-1. But the B-1 set a climb record at 150 metric tons: 3 min 50 sec I think it was, brake release to 9000 meter...

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by timz
Sun Jun 24, 2018 12:26 am
Forum: Technical/Operations
Topic: 1938 Boston Airport Operations
Replies: 5
Views: 735

Re: 1938 Boston Airport Operations

https://www.flickr.com/photos/boston_pu ... 5868099990

Circa 1946 TWA transatlantic flights left from Hanscom rather than Logan-- maybe because Logan wasn't good enough?
-->

More pics

https://www.flickr.com/photos/boston_pu ... 5868099990

Circa 1946 TWA transatlantic flights left from Hanscom rather than Logan-- maybe because Logan wasn't good enough?

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by timz
Fri Jun 22, 2018 2:07 am
Forum: Civil Aviation
Topic: Continental DC-10 routes to Hawaii in the 80's
Replies: 75
Views: 6837

Re: Continental DC-10 routes to Hawaii in the 80's

CO started EWR-HNL around 1987-88. Don't think it ever did SFO-HNL.

You could see an eastward contrail over Oakland in the afternoon-- had to be CO's nonstop to EWR. All the others were overnight.

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by timz
Sun Jun 10, 2018 8:16 pm
Forum: Technical/Operations
Topic: Scans: four 1966-1971 local charts
Replies: 1
Views: 570

Scans: four 1966-1971 local charts

San Francisco 6/66 https://app.box.com/s/0yov94vom4icwkv6scqaudfp1cd0sfew Denver 6/67 https://app.box.com/s/oeksl7wpy7l1gv8f6ou2pxic4djwvr6m Phoenix 6/67 https://app.box.com/s/dgjh5kvrd5i3vcld80v6t46mkcxw95o5 New York 9/71 https://app.box.com/s/bolm10dsyuvor0xv3w2s4n95tux5u07z The earlier batch of s...

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by timz
Wed Jun 06, 2018 5:52 pm
Forum: Civil Aviation
Topic: PHL dual runway takeoffs
Replies: 17
Views: 2209

Re: PHL dual runway takeoffs

Runway thresholds need to be staggered with parallel runways less than 2500 ft apart to enable this. The rule states that the landing must happen on the closest threshold and the departure from the furthest one. For every 100ft below 2500 ft, runway thresholds need to be staggered by 500 ft. Guess ...

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by timz
Fri Jun 01, 2018 5:31 pm
Forum: Technical/Operations
Topic: Water Injection on Modern Turbofan?
Replies: 37
Views: 4411

Re: Water Injection on Modern Turbofan?

Water absorbs lots of heat when it evaporates-- that's the point, to cool the gases passing the turbine. I'm guessing the steam itself does nothing.

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by timz
Sun May 27, 2018 10:28 pm
Forum: Technical/Operations
Topic: Flights circumventing certain territories
Replies: 21
Views: 2551

Re: Flights circumventing certain territories

Looks like Cubana started Havana-Montreal flights in 1976, with a DC-8 (whose?). If they flew around the US, they couldn't keep the four-hour schedule, but maybe close enough.

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by timz
Sat May 26, 2018 10:33 pm
Forum: Technical/Operations
Topic: Flights circumventing certain territories
Replies: 21
Views: 2551

Re: Flights circumventing certain territories

Offhand guess: US airlines always wanted to fly over Cuba, and had more to gain from a reciprocal agreement with Cuba. Don't recall when Cuba started scheduling flights that wanted to fly over the US. In any case, they did fly over NY to Montreal in the 1990s.

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by timz
Sun May 20, 2018 10:22 pm
Forum: Technical/Operations
Topic: Empty 737 Fuselage on Train Weight?
Replies: 9
Views: 1821

Re: Empty 737 Fuselage on Train Weight?

m007j wrote:
Based on the load limit for the BNSF flatcars that carry the fuselages, the bodies weigh a maximum of 46000 lbs.

The maximum gross weight of the car is only 46000 lb more than the empty weight? Why so low?

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by timz
Thu May 17, 2018 8:12 pm
Forum: Technical/Operations
Topic: Boeing 707 JT8D
Replies: 11
Views: 2007

Re: Boeing 707 JT8D

Yeah, no indication the JT8D-17 had much better sfc than the JT3D. Think Jane's showed about the same cruise SFC for both -- around 0.81 pounds of fuel per hour per pound of thrust, wasn't it?

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by timz
Thu May 17, 2018 6:21 pm
Forum: Civil Aviation
Topic: Why operating into South Lake Tahoe (TVL) by Major Air & Commuter Carriers was never profitable?
Replies: 39
Views: 3317

Re: Why operating into South Lake Tahoe (TVL) by Major Air & Commuter Carriers was never profitable?

wedgetail737 wrote:
Truckee also had commuter airline service back in the 1970's and 1980's.

Anyone know when?

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by timz
Fri May 04, 2018 5:19 pm
Forum: Travel, Polls & Preferences
Topic: Which is the longest current/ever nonstop B747-400 route?
Replies: 21
Views: 4965

Re: Which is the longest current/ever nonstop B747-400 route?

drerx7 wrote:
7636mi IAH-LAD would have been longer than ATL-JNB.

Try that calculation again.

So far as we know ATL-JNB was the longest non-ER route? Did they fly it nonstop both ways?

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by timz
Thu May 03, 2018 3:20 pm
Forum: Civil Aviation
Topic: DC8 heading to LIH
Replies: 22
Views: 3112

Re: DC8 heading to LIH

Turns out UA flew DC-8s to LIH until 1988.

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by timz
Wed May 02, 2018 11:48 pm
Forum: Civil Aviation
Topic: DC8 heading to LIH
Replies: 22
Views: 3112

Re: DC8 heading to LIH

cathay747 wrote:
I seem to recall that UA did use -71's between LIH and the West Coast

Likely true, if they started Lihue flights before October 1991. Did they?

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by timz
Wed May 02, 2018 8:11 pm
Forum: Civil Aviation
Topic: DC8 heading to LIH
Replies: 22
Views: 3112

Re: DC8 heading to LIH

Offhand guess: UA never scheduled DC8s to Lihue.

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by timz
Tue May 01, 2018 6:12 pm
Forum: Civil Aviation
Topic: Is this even Legal (close flying)
Replies: 27
Views: 5628

Re: Is this even Legal (close flying)

FlyHappy wrote:
I'm guessing the distance is much greater than my eyes and brain are telling me.

No reason to doubt your eyes and brain.

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by timz
Sat Apr 28, 2018 12:18 am
Forum: Civil Aviation
Topic: United DC-10 International Routes?
Replies: 34
Views: 4448

Re: United DC-10 International Routes?

RWA380 wrote:
Yes, pre-PA pacific route purchase, The daily ORD-NRT direct service (6xweekly via SEA & 1xweekly via PDX) was on 747-200...

Offhand guess: UA had no 747-200s before 1986.

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by timz
Thu Apr 26, 2018 2:30 pm
Forum: Civil Aviation
Topic: Did UA ever have their own 767-200ERs?
Replies: 27
Views: 4959

Re: Did UA ever have their own 767-200ERs?

2001-2002 JP shows the same MTOW for all UA 767-222s, "ET" and not: 145150 kg. Was 320000 lb enough to be called ER?

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by timz
Fri Apr 20, 2018 5:27 pm
Forum: Civil Aviation
Topic: SAS CPH - Tokyo
Replies: 2
Views: 1669

Re: SAS CPH - Tokyo

The 12/56 OAG shows the two DC-7Cs a week -- says they're effective 23 February, subject to govt approval.

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by timz
Thu Apr 19, 2018 2:54 am
Forum: Civil Aviation
Topic: SAS CPH - Tokyo
Replies: 2
Views: 1669

Re: SAS CPH - Tokyo

Davies says CPH-ANC-TYO started 2/57; the 4/57 OAG shows two DC-7Cs a week. That wasn't SAS' first TYO route, of course.

3 DC-8s a week in 5/68-- maybe the flight via ANC was never daily?

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by timz
Mon Apr 16, 2018 5:12 pm
Forum: Civil Aviation
Topic: American Airlines London service before 1991
Replies: 31
Views: 6113

Re: American Airlines London service before 1991

Answer to the original question: far as we know, AA's only scheduled flights to Gatwick before ORD-LGW were

DFW-LGW starting 1982
MIA-LGW starting about June 1990

ORD-LGW started 1 June 1991? and moved to LHR in a month or less.

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by timz
Sun Apr 15, 2018 6:08 pm
Forum: Civil Aviation
Topic: American Airlines London service before 1991
Replies: 31
Views: 6113

Re: American Airlines London service before 1991

Looks like AA's second LGW flight was MIA-- it's not in the May 1990 timetable and is in the 15 June.

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by timz
Fri Apr 13, 2018 5:32 pm
Forum: Civil Aviation
Topic: Why is NZ flying from LHR-LAX? Is it a connection?
Replies: 57
Views: 8861

Re: Why is NZ flying from LHR-LAX? Is it a connection?

planemanofnz wrote:
Unclekoru wrote:
Air NZ began operating it's own aircraft through to the UK ... ~1995

For the record, NZ had been flying to LGW since 1982

For the record, the above is a misquote.

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by timz
Thu Apr 12, 2018 11:26 pm
Forum: Civil Aviation
Topic: Help with a childhood memory
Replies: 23
Views: 2152

Re: Help with a childhood memory

SheikhDjibouti wrote:
Since passengers were not being offloaded, the aircraft could have been parked away from any terminal buildings

He didn't say no passengers got off. No reason for those PA flights to have a no-passenger stop.

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by timz
Thu Apr 12, 2018 10:07 pm
Forum: Civil Aviation
Topic: Help with a childhood memory
Replies: 23
Views: 2152

Re: Help with a childhood memory

The PA July-Aug timetable shows five direct flights a week MIA to GIG: Leaving 0110 EDT on Thu, a three-stop DC8-- doesn't arrive GIG until 1515, so presumably not your flight Leaving 1945 MoThSa, stop Caracas 2240-2340, arr GIG 0615 Or leave MIA 2100 We, stop Viracopos 0615-0700, arr GIG 0750. Look...

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by timz
Tue Apr 03, 2018 10:53 pm
Forum: Civil Aviation
Topic: What is the largest civilian aircraft to visit PWM?
Replies: 20
Views: 2765

Re: largest civil aircraft at PWM?

Scans of paper copies of many years of Airport Activity Statistics are at hathitrust.org. Easy to find as long as you click on "catalog" before you search. Table 7 is the one that shows how many departures of each type for each airline-- it's alphabetical by state.

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by timz
Tue Apr 03, 2018 7:35 pm
Forum: Civil Aviation
Topic: What is the largest civilian aircraft to visit PWM?
Replies: 20
Views: 2765

Re: largest civilian aircraft to visit PWM?

Airport Activity Statistics shows one DL 767-300 departure from PWM in 1988-- nothing larger than a 757 in 1989 and 1990, on any airline.

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by timz
Tue Apr 03, 2018 7:13 pm
Forum: Technical/Operations
Topic: Airbus vs Boeing vs Other - lowest CASM and best fuel efficiency?
Replies: 14
Views: 1232

Re: Airbus vs Boeing vs Other - lowest CASM and best fuel efficiency?

What's the maximum number of seats in an A380, if we avoid cruelty? Truth to tell, you're not going to get good answers here about CASM-- we're too ignorant. But if someone did know about costs, you'd have to spell out how many seats you're going to allow in each aircraft. That's the only thing that...

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by timz
Tue Apr 03, 2018 7:03 pm
Forum: Civil Aviation
Topic: Evolution of TCON routes out of YVR and SEA
Replies: 18
Views: 2280

Re: Evolution of TCON routes out of YVR and SEA

leftcoast8 wrote:
BA used to run LHR-SEA-YVR using L-1011s, or 747 Classics. There was also an LHR-SEA-SFO route which I think used an L-1011.

Offhand guess: BA never flew SFO-SEA.

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by timz
Mon Mar 26, 2018 5:49 pm
Forum: Technical/Operations
Topic: Great Circle Flight Plan Question
Replies: 23
Views: 1934

Re: Great Circle Flight Plan Question

SAAFNAV wrote:
If the Great Circle Distance was say 5 000 nm, but you have a tailwind of 100 kts all the way, then you can think of it as a distance of only 4900 nm.

More like 4200 nm.

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by timz
Thu Mar 15, 2018 9:16 pm
Forum: Civil Aviation
Topic: Continental 720 or 727
Replies: 5
Views: 1249

Re: Continental 720 or 727

I finally noticed your private message, and replied. Airport Activity Stats shows 40 CO 707/720B departures from ABQ during 1967, and 30 727s. Don't have a 12/67 QR OAG, which I guess is what you need, to see if the flight was then a 727 or 720B. Do have a 1/68, tho-- I'll check it eventually.

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