Search found 6577 matches

by timz
Thu Jul 05, 2018 8:06 pm
Forum: Technical/Operations
Topic: Hot & High vs. Cold & Higher Takeoff
Replies: 10
Views: 1176

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: 5734

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: 5734

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: 1047

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: 5734

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: 7736

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: 7736

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: 55
Views: 14625

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: 872

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: 7736

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: 677

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: 2440

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: 5009

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: 29
Views: 4758

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: 29
Views: 4758

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: 2134

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: 2443

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: 44
Views: 5032

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: 5151

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: 3300

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: 3300

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: 3300

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: 5819

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: 37
Views: 5967

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: 6743

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: 1685

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: 1685

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: 6475

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: 6475

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: 9442

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: 2333

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: 2333

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: 3113

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: 3113

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: 2072

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: 4329

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: 2457

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: 1346

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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by timz
Thu Mar 08, 2018 7:17 pm
Forum: Civil Aviation
Topic: Pan Am at Oslo
Replies: 37
Views: 4336

Re: Pan Am at Oslo

aklrno wrote:
JetBuddy wrote:
Anyone remember where that Bergen flight went to?

In summer 1976 and 1977 the 727 flew LHR-Bergen-FBU and returned nonstop FBU-LHR next day.

FBU's runway was 2200 meters in 1974.

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by timz
Wed Mar 07, 2018 4:46 pm
Forum: Civil Aviation
Topic: Pan Am at Oslo
Replies: 37
Views: 4336

Re: Pan Am at Oslo

PA moved to Fornebu in 1967; that summer the DC8 to JFK went via Prestwick, but starting in June 1968 707s flew nonstop FBU-JFK.

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by timz
Wed Mar 07, 2018 2:40 am
Forum: Civil Aviation
Topic: Pan Am at Oslo
Replies: 37
Views: 4336

Re: Pan Am at Oslo

https://www.flickr.com/photos/[email protected]

Yup-- says 2370 meters. No date on that one, tho.

https://www.flickr.com/photos/[email protected] ... 3905448241
-->

Don't recall how long Fornebu's runway was-- 2100+ meters? Maybe this guy has a diagram

https://www.flickr.com/photos/[email protected]

Yup-- says 2370 meters. No date on that one, tho.

https://www.flickr.com/photos/[email protected] ... 3905448241

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by timz
Tue Mar 06, 2018 6:56 pm
Forum: Civil Aviation
Topic: Pan Am at Oslo
Replies: 37
Views: 4336

Re: Pan Am at Oslo

Pan Am's early 707s went to Gardermoen-- dunno offhand when they moved to FBU.

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by timz
Tue Mar 06, 2018 12:56 am
Forum: Technical/Operations
Topic: LH A380 lower than usual pass over the Golden Gate Bridge
Replies: 9
Views: 2189

Re: LH A380 lower than usual pass over the Golden Gate Bridge

Aircraft departing runways 1 (or OAK) and headed south or west sometimes request the Bay Tour: maintain 3000, remain over the water, depart the Golden Gate Bridge heading whatever, then climb and maintain whatever.

Didn't know they ever did that for runway 28 departures, but sounds a possibility.

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by timz
Mon Mar 05, 2018 8:20 pm
Forum: Civil Aviation
Topic: First Airline with NYC-SFO Non-Stop Commercial Service
Replies: 36
Views: 5961

Re: First Airline with NYC-SFO Non-Stop Commercial Service

TW870 wrote:
Why didn't United blow the market open and put the strat on LAX-IDL or SFO-IDL?

United and AA could have flown LAX-LGA with a DC-6 in 1947, if not for the federal 8-hour rule. Likely they couldn't count on the B377 to do better.

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by timz
Sun Mar 04, 2018 9:30 pm
Forum: Civil Aviation
Topic: First Airline with NYC-SFO Non-Stop Commercial Service
Replies: 36
Views: 5961

Re: First NYC-SFO Non-Stop

So it seems UA and TW both started IDL to SFO in 1955. By then the rules allowed 10-hour (?) domestic nonstops.

AA and TW both tried BOS-LAX in 1957, but don't think any prop was ever scheduled BOS-SFO.

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by timz
Sat Mar 03, 2018 7:21 pm
Forum: Technical/Operations
Topic: Are simultaneous intersecting landings a thing?
Replies: 43
Views: 4990

Re: simultaneous intersecting

ro1960 wrote:
Otherwise I suggest you watch these videos

No simultaneous intersecting takeoffs/landings in his videos, of course.

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by timz
Mon Feb 26, 2018 6:52 pm
Forum: Technical/Operations
Topic: Are simultaneous intersecting landings a thing?
Replies: 43
Views: 4990

Re: simultaneous intersecting landings a thing?

People in this thread like the word "simultaneous" -- they use it to mean "happening a minute or two apart", like takeoffs at SFO.

Would a 757 landing at LGA ever accept a LAHSO, if asked?

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by timz
Sun Feb 11, 2018 9:54 pm
Forum: Travel, Polls & Preferences
Topic: Busiest passenger airport during midnight/early morning
Replies: 23
Views: 4197

Re: Busiest passenger airport during midnight/early morning

From the Wikipedia article

"The April 1957 OAG shows 165 weekday departures from Atlanta, including ... 20 between 2:25 and 4:25 AM.)"

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by timz
Wed Feb 07, 2018 10:53 pm
Forum: Technical/Operations
Topic: SFO BA A380 takeoff on 1R?!?!
Replies: 46
Views: 7694

Re: SFO BA A380 takeoff on 1R?!?!

viewtopic.php?f=3&t=596583
-->

ro1960 wrote:
On the SFO archive web site there are a few shots of an AF Concorde on runway 1R in 1974.

The site has more pics of it, showing it taking off.

viewtopic.php?f=3&t=596583

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by timz
Thu Feb 01, 2018 6:42 pm
Forum: Civil Aviation
Topic: Pan Am turbojet 707-321 routes?
Replies: 1
Views: 812

Re: Pan Am turbojet 707-321 routes?

Know this doesn't answer your question, but Airport Activity Statistics shows PA departures in 1969 from

SFO: 78 707-300, 4313 707-300B/C

LAX: 126, 4734

HNL 266, 7743

TYO 19, 3888

SYD 1, 673

Calcutta 17, 709

Delhi 7, 425

THR 193, 468

JNB 1, 102

DKR 0, 312

MIA 1536, 1872

JFK 4010, 7419

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