Search found 213 matches

by convair880mfan
Fri Oct 15, 2021 11:27 pm
Forum: Technical/Operations
Topic: Does anyone know the flap settings for the Boeing 720 and which settings were used for t/o or landing
Replies: 0
Views: 115

Does anyone know the flap settings for the Boeing 720 and which settings were used for t/o or landing

I've done a key word search to no avail and tried looking at enlarged photos of B720 instrument panels . . . also to no avail. Perhaps there are some former 720 pilots who know or enthusiasts who have Flight or Operating Manuals. Grateful for any information!

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by convair880mfan
Thu Oct 14, 2021 10:09 pm
Forum: Technical/Operations
Topic: Was this Boeing 707 takeoff dangerous or only appears so to a non-pilot?
Replies: 7
Views: 952

Re: Was this Boeing 707 takeoff dangerous or only appears so to a non-pilot?

Thanks so much 113312. I really appreciate it! When I was a teenager I read a lot of books on how to be a flight engineer, how to ace the F/E test for the B727, tricks for passing the 727 F/E written exam and so on. I read them but did not study them, did not memorize them, did not take the practice...

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by convair880mfan
Thu Oct 14, 2021 8:28 pm
Forum: Technical/Operations
Topic: Was this Boeing 707 takeoff dangerous or only appears so to a non-pilot?
Replies: 7
Views: 952

Re: Was this Boeing 707 takeoff dangerous or only appears so to a non-pilot?

I'll have to look up those abbreviations, but I do appreciate your comments. I would think, and I could be wrong, that your numbers would have to be pretty accurate. What I mean is there seems to be little room for error if you underestimated your load, if your weight and balance was off or if you r...

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by convair880mfan
Thu Oct 14, 2021 7:08 pm
Forum: Technical/Operations
Topic: Was this Boeing 707 takeoff dangerous or only appears so to a non-pilot?
Replies: 7
Views: 952

Was this Boeing 707 takeoff dangerous or only appears so to a non-pilot?

https://youtu.be/_RKa0_Qr1s4
-->

I am not a pilot, so what appears to be a real "nail biter" might be completely normal. What do you pilots think of this video. It does provide a nice view of a standing takeoff .https://youtu.be/_RKa0_Qr1s4

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by convair880mfan
Tue Oct 12, 2021 6:19 pm
Forum: Travel, Polls & Preferences
Topic: For pilots: Was the DC-10 a joy to fly?
Replies: 6
Views: 1329

Re: For pilots: Was the DC-10 a joy to fly?

CosmicCruiser,
I am not quite sure what you mean by "sluggish" when referring to the controls on the MD-10 [DC-10]. Do you mean the rudders, ailerons and speed brakes were slower to respond to your control inputs than the controls of the MD-11?. Sorry I am not a pilot.

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by convair880mfan
Mon Oct 11, 2021 3:52 pm
Forum: Travel, Polls & Preferences
Topic: For pilots: Was the DC-10 a joy to fly?
Replies: 6
Views: 1329

For pilots: Was the DC-10 a joy to fly?

As a passenger, I always enjoy my flights on the DC-10-10 and the DC-10-30. Not sure how many DC-10/MD-10 pilots are on the Forums, but I was wondering whether pilots enjoyed flying it?

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by convair880mfan
Mon Oct 11, 2021 3:44 am
Forum: Travel, Polls & Preferences
Topic: Your favorite plane that you haven't flown on
Replies: 19
Views: 685

Re: Your favorite plane that you haven't flown on

Convair 880 or 880M
Concorde

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by convair880mfan
Sun Oct 10, 2021 8:32 pm
Forum: Technical/Operations
Topic: Does a jetliner need to be taken out of service after one of its engines suffers a compressor stall?
Replies: 2
Views: 682

Does a jetliner need to be taken out of service after one of its engines suffers a compressor stall?

I hate to be at the mercy of Wikipedia here. I am guessing that a compressor stall in an engine due to a bird strike would require an inspection after landing. What about other types of compressor stalls? It seems like there are degrees of seriousness involved involving duration, EGT limits and so o...

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by convair880mfan
Sun Oct 10, 2021 7:48 pm
Forum: Travel, Polls & Preferences
Topic: Optical illusions of flight
Replies: 3
Views: 286

Optical illusions of flight

My first flight in a Boeing 707 occurred when I was a college student studying physics, so it was a very special experience for me. As the aircraft lifted off the ground, our plane felt motionless and it appeared that it was the earth that was falling away from us at an angle. During the first turn ...

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by convair880mfan
Sat Oct 09, 2021 11:50 pm
Forum: Travel, Polls & Preferences
Topic: Anyone been on a DC8 when there was one seat row per window?
Replies: 1
Views: 374

Anyone been on a DC8 when there was one seat row per window?

The original DC8 had generous seat pitch such that for every row of seats there was one large window. Economics eventually caused airlines to pack more and more seats in the DC8 but I wonder if there are any old timers out there who flew on the DC8 when the passenger compartment was configured with ...

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by convair880mfan
Sat Oct 09, 2021 5:59 pm
Forum: Technical/Operations
Topic: Could flap operation be automated?
Replies: 18
Views: 1461

Could flap operation be automated?

I was wondering about this since flap movement is tied to variables like weight and speed. Could flight deck automation remove from pilots the task of lowering and raising flaps based on aircraft configuration?

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by convair880mfan
Sat Oct 09, 2021 3:30 am
Forum: Technical/Operations
Topic: What exactly is a "short final"?
Replies: 11
Views: 1776

What exactly is a "short final"?

There is a lot of conflicting information out there on the internet. Is there some kind of "official" definition? A commercial pilot told me that the airlines prefer long straight-in approaches. Is a short final sort of the antithesis of this?

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by convair880mfan
Wed Oct 06, 2021 12:32 am
Forum: Travel, Polls & Preferences
Topic: Your shortest flight on a widebody and longest flight on a narrowbody
Replies: 92
Views: 2878

Re: Your shortest flight on a widebody and longest flight on a narrowbody

Shortest widebody flights:

TWA 747-100 St. Louis to NY JFK Airport
United 747-400 Denver to Los Angeles International Airport

Not sure about the lonest narrow body flights I've been on.

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by convair880mfan
Tue Oct 05, 2021 5:34 pm
Forum: Travel, Polls & Preferences
Topic: "The Boeing 880" Create your own nickname for an airliner.
Replies: 3
Views: 204

"The Boeing 880" Create your own nickname for an airliner.

Airliners have nicknames but it might be fun to make up our own. I always thought a good nickname for the Boeing 720 would be the Boeing 880 since it was created in part as an answer to the Convair 880. What nickname would you give to an airliner you know of?

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by convair880mfan
Tue Oct 05, 2021 5:17 pm
Forum: Technical/Operations
Topic: Dual spool compressors vs. variable stator compressors
Replies: 7
Views: 940

Re: Dual spool compressors vs. variable stator compressors

Thanks to all members who helped provide information. How interesting that the PW4000 has variable incidence guide vanes in addition to the variable incidence stators. Isn't jet propulsion technology amazing. A friend sent me some information on the CFM56-3 engine. It also has variable incidence sta...

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by convair880mfan
Tue Oct 05, 2021 6:04 am
Forum: Technical/Operations
Topic: Dual spool compressors vs. variable stator compressors
Replies: 7
Views: 940

Re: Dual spool compressors vs. variable stator compressors

I had found some information on the internet but am having difficulty locating information about variable-incidence stator use on the jet engines of various airliners after the Boeing 707 and Convair 880. In a Forum called PPRuNe, a writer states that the JT9D of Pratt and Whitney utilized some vari...

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by convair880mfan
Tue Oct 05, 2021 12:44 am
Forum: Technical/Operations
Topic: Dual spool compressors vs. variable stator compressors
Replies: 7
Views: 940

Dual spool compressors vs. variable stator compressors

I think Pratt and Whitney and General Electric had two different jet engine compressor designs to prevent transients and stalling of the compressors during certain conditions. If I am not mistaken, GE used variable-incidence stators on the engines on the Convair 880 while Pratt and Whitney used twin...

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by convair880mfan
Tue Oct 05, 2021 12:27 am
Forum: Technical/Operations
Topic: During a standing takeoff on a water-injected aircraft like the early 707, when does the water start?
Replies: 17
Views: 2087

Re: During a standing takeoff on a water-injected aircraft like the early 707, when does the water start?

Did the C-5 Galaxy need water to takeoff or were all of its takeoffs dry? I'm suspecting that it didn't need water since for an aircraft of that size, it didn't need all that much runway to get off the ground. But perhaps I am wrong.

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by convair880mfan
Mon Oct 04, 2021 11:43 pm
Forum: Technical/Operations
Topic: How many miles before touchdown are final landing flaps selected?
Replies: 5
Views: 592

How many miles before touchdown are final landing flaps selected?

Is there a standard or average distance or does it vary by aircraft or conditions? If it varies by aircraft type, what is the average for your aircraft or is there no average? Thanks for any information in either miles or kilometers.

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by convair880mfan
Mon Oct 04, 2021 11:38 pm
Forum: Technical/Operations
Topic: During a standing takeoff on a water-injected aircraft like the early 707, when does the water start?
Replies: 17
Views: 2087

During a standing takeoff on a water-injected aircraft like the early 707, when does the water start?

Does the water start when the thrust levers are advanced to a certain point or does it start when the aircraft begins rolling. I have been on 707's where standing takeoffs were made with water injection. Sometimes the 707 would wait like 30 seconds before the roll. Is water being used during this ti...

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by convair880mfan
Sun Oct 03, 2021 4:42 am
Forum: Technical/Operations
Topic: Were Pratt & Whitney JT8D bird strike engine shurtdowns rare?
Replies: 0
Views: 465

Were Pratt & Whitney JT8D bird strike engine shurtdowns rare?

I've heard a lot about bird strike engine shutdowns on GE and CFM engines as well as larger Pratt & Whitney engines. Not sure about Rolls Royce engines. I can't remember hearing of bird strikes on P&W JT8D engines that caused engine shutdowns. I know hail brought down a DC-9 powered by P&...

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by convair880mfan
Sat Oct 02, 2021 11:11 pm
Forum: Technical/Operations
Topic: Which airliners are able to use APU while airborne?
Replies: 10
Views: 1357

Re: Which airliners are able to use APU while airborne?

Did the Lockheed C5 Galaxy have an APU and could it be used in flight, GalaxyFlyer?

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by convair880mfan
Sat Oct 02, 2021 9:48 pm
Forum: Technical/Operations
Topic: Which airliners are able to use APU while airborne?
Replies: 10
Views: 1357

Which airliners are able to use APU while airborne?

According to author Jim Upton in his book, "Lockheed L-1011 Tristar" : "Providing ground self-sufficiency and emergency in-flight power, the (L-1011) APU system is operable up to an altitude of 30,000 feet under all flight conditions within the aircraft operation envelope." (1) A...

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by convair880mfan
Sat Oct 02, 2021 9:05 pm
Forum: Travel, Polls & Preferences
Topic: "Landing in a telephone booth"
Replies: 0
Views: 394

"Landing in a telephone booth"

Once back in the day while riding aboard a Southwest Airlines 737-200 from ABQ to PHX, the plane made an extremely "firm" landing and when reverse thrust was applied, I felt being pulled very, very hard against my seatbelt. I even had to brace myself against the backrest of the seat in fro...

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by convair880mfan
Sat Oct 02, 2021 5:17 am
Forum: Technical/Operations
Topic: In a circling approach, how much of a straight path is required before landing.
Replies: 20
Views: 1338

Re: In a circling approach, how much of a straight path is required before landing.

GalaxyFlyer, Regarding visual approaches . . . How does that work? Does the aircraft request it and then need approval from ATC? Does ATC suggest it? I know there are published visual approaches like the one into DCA. I am not aware of any published visual approaches for Albuquerque although the wea...

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by convair880mfan
Fri Oct 01, 2021 6:37 pm
Forum: Technical/Operations
Topic: In a circling approach, how much of a straight path is required before landing.
Replies: 20
Views: 1338

In a circling approach, how much of a straight path is required before landing.

Can an airliner follow an arc all the way to the runway threshold? I was on a return flight once to my hometown and the MD-80 I was on only lined up with the runway for about 11 seconds before it crossed the threshold. When the wings were level it was just 11 seconds. Are there any rules or protocol...

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by convair880mfan
Fri Oct 01, 2021 5:39 am
Forum: Technical/Operations
Topic: How soon after takeoff can an airliner safely start a turn?
Replies: 24
Views: 1986

Re: How soon after takeoff can an airliner safely start a turn?

I wonder how the 400 figure was arrived at? How long is an aircraft in ground effect after takeoff? I wouldn't imagine its very long at those speeds. At 500 agl do you do a 30 degree turn or 15 %.

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by convair880mfan
Fri Oct 01, 2021 4:34 am
Forum: Technical/Operations
Topic: If snubbers failed to stop wheel rotation during retraction, would this adversely affect the airplane?
Replies: 8
Views: 1163

If snubbers failed to stop wheel rotation during retraction, would this adversely affect the airplane?

Or would they just continue spinning until they decelerated on their own in their wheel wells? Would the spinning wheels engendered by failed snubbers create a gyroscopic force on the aircraft. I've never read of snubbers failing. Maybe they are too simple to fail. I collect aircraft manual and have...

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by convair880mfan
Fri Oct 01, 2021 4:27 am
Forum: Technical/Operations
Topic: How soon after takeoff can an airliner safely start a turn?
Replies: 24
Views: 1986

How soon after takeoff can an airliner safely start a turn?

Is it 400ft.agl? Or can an airliner start turning right after the gear is retracted? Back in the day in Albuquerque I could count to 60 before watching a 707 or 880 begin a turn. Later as a passenger on Southwest Airlines' 737-200s I could usually count to 20 before the aircraft turned. In both of t...

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by convair880mfan
Fri Oct 01, 2021 12:49 am
Forum: Technical/Operations
Topic: Why do ailerons and speed brake panels become so active during the approach phase of flight?
Replies: 14
Views: 1083

Re: Why do ailerons and speed brake panels become so active during the approach phase of flight?

Does the weight and momentum of the larger jet transports have something to do with their stability during approach and landing? A library donated all their issues of Aviation Week and Space Technology magazines to me when the library decided to go digital. I've dug up an old AW&ST pilot report ...

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by convair880mfan
Thu Sep 30, 2021 11:28 pm
Forum: Travel, Polls & Preferences
Topic: Boeing B727 - Whose have you flown?
Replies: 31
Views: 1057

Re: Boeing B727 - Whose have you flown?

Continental 727-100
Continental 727-200
Western 727-200
American 727-200
TWA 727-200
United 727-200

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by convair880mfan
Thu Sep 30, 2021 10:13 pm
Forum: Technical/Operations
Topic: Why do ailerons and speed brake panels become so active during the approach phase of flight?
Replies: 14
Views: 1083

Re: Why do ailerons and speed brake panels become so active during the approach phase of flight?

So if the outboard ailerons are locked out during high speed cruise, I guess the 747 I was on was in the approach phase if I was seeing those move since they wouldn't move during cruise. I still can't quite see why the DC-10 showed less aileron and speed brake movement during the approach. I only fl...

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by convair880mfan
Thu Sep 30, 2021 8:26 pm
Forum: Technical/Operations
Topic: Why do ailerons and speed brake panels become so active during the approach phase of flight?
Replies: 14
Views: 1083

Why do ailerons and speed brake panels become so active during the approach phase of flight?

Sitting behind the wing on many types of airliners, I've noticed that during the final approach, the ailerons and speed brakes move quite spastically as opposed to other phases of flight. Watching flight deck videos of approaches it often seems like the pilot flying is almost wrestling the yoke. The...

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by convair880mfan
Thu Sep 30, 2021 6:06 pm
Forum: Technical/Operations
Topic: On modern airliners, what flight deck instruments are available in the case of loss of all electric power?
Replies: 2
Views: 622

On modern airliners, what flight deck instruments are available in the case of loss of all electric power?

I have heard that all airlines have a wet compass [viewed by a mirror, I believe, on the MD-80 series aircraft]. What other instruments will continue to function in the case of a loss of all electric power [exceedingly rare I guess because of RATs]?. Could airline pilots use their cell phones or lap...

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by convair880mfan
Thu Sep 30, 2021 5:58 pm
Forum: Technical/Operations
Topic: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?
Replies: 31
Views: 1945

Re: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?

Thanks so very much for all that information. I think that provides almost a complete picture except for the DC-10 and some now retired British types like the BAC-111 and so on. Thanks again.

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by convair880mfan
Thu Sep 30, 2021 2:14 am
Forum: Technical/Operations
Topic: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?
Replies: 31
Views: 1945

Re: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?

I don't know if Wikipedia can be counted on, but according to them the Vickers VC-10 had a RAT and the A-380 has the largest RAT propeller in the world. I imagine that if the 727 didn't have one, that the 707 didn't have one. Anyone know about other Boeing jetliners? Thanks for all responses so far!

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by convair880mfan
Thu Sep 30, 2021 1:06 am
Forum: Technical/Operations
Topic: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?
Replies: 31
Views: 1945

Which airliners have ram air turbines. Which power hydraulics and which provide electricity?

I know the Boeing 767 has a RAT and I think the Lockheed L-1011 Tristar had one too. Don't know what utilities they powered. I don't think the Boeing 707, 727 or early 737's had them. In the dark about the 747,757,777,787. And am clueless about Airbus products and other airliner types like regional ...

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by convair880mfan
Wed Sep 29, 2021 8:13 pm
Forum: Technical/Operations
Topic: Is it possible to put JT8D-200s on a 737-100 and 200?
Replies: 3
Views: 633

Re: Is it possible to put JT8D-200s on a 737-100 and 200?

I've often wondered this myself. Thanks for posting.

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by convair880mfan
Wed Sep 29, 2021 8:13 pm
Forum: Technical/Operations
Topic: Is it possible to put JT8D-200s on a 737-100 and 200?
Replies: 3
Views: 633

Re: Is it possible to put JT8D-200s on a 737-100 and 200?

I've often wondered this myself. Thanks for posting.

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by convair880mfan
Tue Sep 28, 2021 12:46 am
Forum: Technical/Operations
Topic: Is it true that the American 191 and Air Florida 90 accidents could have been averted if the pilots had added power?
Replies: 16
Views: 2231

Re: Is it true that the American 151 and Air Florida 90 accidents could have been averted if the pilots had added power?

What a terrible amount of bad luck in the American Airlines crash. I read that with the loss of that particular engine, the electrical generator powering the slat disagreement warning and the stall warning stick shaker became inoperative so that the pilots didn't have all the information they needed...

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by convair880mfan
Mon Sep 27, 2021 9:57 pm
Forum: Technical/Operations
Topic: Is it true that the American 191 and Air Florida 90 accidents could have been averted if the pilots had added power?
Replies: 16
Views: 2231

Re: Is it true that the American 151 and Air Florida 90 accidents could have been averted if the pilots had added power?

Having quickly scanned the NTSB Report which Woodreau cited, I think my friend was wrong about the throttle lever settingsof the crashed aircraft. I have not read the whole report, which is quite long, but I found a couple of things: "The Board does believe that power was added before impact. H...

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by convair880mfan
Mon Sep 27, 2021 6:40 pm
Forum: Technical/Operations
Topic: Is it true that the American 191 and Air Florida 90 accidents could have been averted if the pilots had added power?
Replies: 16
Views: 2231

Is it true that the American 191 and Air Florida 90 accidents could have been averted if the pilots had added power?

Someone told me that in the NTSB accident reports for the American Airlines DC-10 crash in Chicago and the Air Florida B737-200 crash in Washington, DC that the NTSB had noted that both accidents could have been averted if the pilots had added thrust. He told me that the NTSB had found that with the...

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by convair880mfan
Mon Sep 27, 2021 6:18 pm
Forum: Technical/Operations
Topic: Since LAX departures are usually out over the ocean, do all aircraft need overwater equipment?
Replies: 24
Views: 2103

Re: Since LAX departures are usually out over the ocean, do all aircraft need overwater equipment?

I definitely agree with that. I also think there is a "human factor" in this for better or worse. Airlines are in business to make money for their stockholders. Passengers will pay or will not pay for certain risk probabilities. All things being equal and human beings being completely logi...

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by convair880mfan
Mon Sep 27, 2021 3:16 pm
Forum: Technical/Operations
Topic: Since LAX departures are usually out over the ocean, do all aircraft need overwater equipment?
Replies: 24
Views: 2103

Re: Since LAX departures are usually out over the ocean, do all aircraft need overwater equipment?

If an airliner took off from LAX and had to ditch in the Pacific Ocean for whatever reason . . . and some souls were lost, I'll bet there would be some change in FAR 121 rules. If often takes a disaster for rules to change. Personally speaking, I wouldn't like to be in who knows how cold of ocean wa...

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by convair880mfan
Mon Sep 27, 2021 5:31 am
Forum: Technical/Operations
Topic: Since LAX departures are usually out over the ocean, do all aircraft need overwater equipment?
Replies: 24
Views: 2103

Since LAX departures are usually out over the ocean, do all aircraft need overwater equipment?

Most LAX departures fly out a ways over the Pacific Ocean before turning. Do all the airliners that fly into or out of LAX need rafts and life vests? A lot of different type aircraft utilize this airport including smaller regional jets and turboprop airliners. What are the rules? I realize that many...

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by convair880mfan
Mon Sep 27, 2021 2:48 am
Forum: Technical/Operations
Topic: What constitutes a dive as opposed to a sinking situation in an aircraft?
Replies: 8
Views: 753

Re: What constitutes a dive as opposed to a sinking situation in an aircraft?

What I'm hearing is that the term "dive" is not used in commercial aviation. So then even an emergency descent would never be called a "dive" but just an extreme descent.

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by convair880mfan
Sun Sep 26, 2021 8:16 pm
Forum: Technical/Operations
Topic: What constitutes a dive as opposed to a sinking situation in an aircraft?
Replies: 8
Views: 753

What constitutes a dive as opposed to a sinking situation in an aircraft?

On the flights I have been on, sometimes at the beginning of the descent, I notice a slight nose down pitch. Is this already technically a dive? Wings have various angles of incidence so I suppose that just because the nose is pointed down might not be the same for the wing. On the Boeing 707 flight...

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