Search found 339 matches

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by convair880mfan
Sat Aug 05, 2023 9:30 pm
Forum: Technical/Operations
Topic: With the state of flight deck automation, do pilots still haves Rules-of-Thumb?
Replies: 30
Views: 4257

With the state of flight deck automation, do pilots still haves Rules-of-Thumb?

I found an old booklet on rules-of-thumb for the Boeing 737-200. One example: "The magic attitude for level flight in the traffic pattern for all flap settings in the B737-200: 4/5 degrees nose up. Booklet is full of these little tidbits. Are rules-of-thumb now obsolete given the state of high ...

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by convair880mfan
Sat Jul 22, 2023 4:35 pm
Forum: Technical/Operations
Topic: In-flight hail damage on fabric covered control surfaces?
Replies: 5
Views: 1436

In-flight hail damage on fabric covered control surfaces?

I was reading that all the old Boeing Stratoliner's [Boeing 307] movable surfaces had fabric over a metal structure and was wondering how hail damage would affect the airworthiness of the planes in flight? Was also wondering why the Stratoliner being one of the first all metal pressurized airliners ...

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by convair880mfan
Fri Jun 16, 2023 12:37 am
Forum: Technical/Operations
Topic: Antishock bodies and leading edge gloves
Replies: 3
Views: 1637

Antishock bodies and leading edge gloves

Were the Convair 990 antishock bodies (Kuchemann carrots) and the leading edge glove added to the Boeing 720 and later to all 707's designed to do the same or similar things? Or did they each have separate purposes? If the Boeing 720 leading edge glove had been designed into the Convair 990 instead ...

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by convair880mfan
Mon May 15, 2023 5:37 pm
Forum: Technical/Operations
Topic: Did the DC-8 use jack screws for flap operation?
Replies: 7
Views: 4055

Did the DC-8 use jack screws for flap operation?

I've only seen videos with wing views of the DC-8. It looks like there are wing upper surface hinges. But not sure if the inner mechanism used jack screws. I know the DC-10 just used hydraulically operated under wing hinges housed in fairings. Does anyone know how the DC-8 flap system operated? Sorr...

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by convair880mfan
Fri May 05, 2023 7:19 pm
Forum: Technical/Operations
Topic: Propeller aircraft with leading edge slats?
Replies: 24
Views: 3895

Re: Propeller aircraft with leading edge slats?

Thanks! Great to know.

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by convair880mfan
Fri May 05, 2023 7:19 pm
Forum: Technical/Operations
Topic: Propeller aircraft with leading edge slats?
Replies: 24
Views: 3895

Re: Propeller aircraft with leading edge slats?

Thanks! Great to know.

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by convair880mfan
Fri May 05, 2023 6:39 pm
Forum: Technical/Operations
Topic: Aerodynamics for Dummies and swimming in the air
Replies: 19
Views: 3404

Aerodynamics for Dummies and swimming in the air

In a course called "Aerodynamics for Poets" in college, my professor said. "We live at the bottom of an ocean of air. For aircraft and some large birds, flying is like swimming in the air. For very small insects like gnats, flying is almost like digging through the air or swimming in ...

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by convair880mfan
Fri May 05, 2023 6:13 pm
Forum: Technical/Operations
Topic: Propeller aircraft with leading edge slats?
Replies: 24
Views: 3895

Propeller aircraft with leading edge slats?

Do any propeller driven aircraft have slats [or leading edge flaps].? Anyone know? After flying on airliners with slats and leading edge flaps, I find it a bit disconcerting to fly on aircraft that fly approaches in a nose down attitude [like the DC-9-10 which seemed to me at the time to be diving n...

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by convair880mfan
Fri May 05, 2023 2:19 am
Forum: Technical/Operations
Topic: Wing loading and landing flap settings
Replies: 10
Views: 2360

Wing loading and landing flap settings

When I watch flight deck videos of landings I always see the pilot flying the aircraft making constant movements of the yoke almost as though he or she is fighting strong forces. Is this because in the final approach phase, the flaps lower the wing loading ..... I mean, compared to cruise when the w...

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by convair880mfan
Wed May 03, 2023 11:09 pm
Forum: Technical/Operations
Topic: B737 Extending flaps during landing roll?
Replies: 18
Views: 3711

Re: B737 Extending flaps during landing roll?

Thanks everyone! The video is edited but it appears to me that this 737 is coming in very hot. Most of my flight experience as a passenger have been in 737-200s so I have a memory of how speed looks during landing and I come from a mile high airport where 100 degree temps are not unusual in the summ...

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by convair880mfan
Wed May 03, 2023 5:08 am
Forum: Technical/Operations
Topic: B737 Extending flaps during landing roll?
Replies: 18
Views: 3711

B737 Extending flaps during landing roll?

I was watching this video of a Boeing 737-200 and when the reverser buckets are activated and reverse thrust applied, the flaps begin to extend beyond the approach flap setting. Have not seen this on any other video of a 737-200 landing. Is this something that the pilots do to increase drag after la...

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by convair880mfan
Sat Jun 25, 2022 2:04 am
Forum: Technical/Operations
Topic: Pair of very tiny windows on the Boeing 720?
Replies: 12
Views: 3404

Re: Pair of very tiny windows on the Boeing 720?

Thanks again CrewBunk. I found a photo of an American Airlines 707 with those two lavatory windows. I think it is clear from that photo that they are little windows. Thanks again. I never noticed that in the 707 before.

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by convair880mfan
Fri Jun 24, 2022 8:54 pm
Forum: Technical/Operations
Topic: Pair of very tiny windows on the Boeing 720?
Replies: 12
Views: 3404

Pair of very tiny windows on the Boeing 720?

What are the little dots on the fuselage forward of the forward door and above the general window line? Windows? Skylights? Something else?







It doesn't appear in all photos of the 720. Thanks for any information!

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by convair880mfan
Tue Jun 07, 2022 4:18 am
Forum: Technical/Operations
Topic: Boeing 737-100 "excessively cruciform" meaning?
Replies: 7
Views: 3133

Re: Boeing 737-100 "excessively cruciform" meaning?

I wonder if this is related to the comment of Captain Barry Schiff on the Boeing 720 [which is similar in cruciform shape to the 737 in some respects]: "some pilots feel that [the] 7120 is not quite as easy to handle as the larger 707: The shorter fuselage of the airplane makes it slightly less...

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by convair880mfan
Sun Jun 05, 2022 8:36 pm
Forum: Technical/Operations
Topic: Boeing 737-100 "excessively cruciform" meaning?
Replies: 7
Views: 3133

Boeing 737-100 "excessively cruciform" meaning?

In the book "Airliner Color History: Boeing 737-100 and 200" by Michael Sharpe and Robbie Shaw there is a section called "A Pilot's View" written by captain Jack Brown. When describing the 737-200, he writes: " It was certainly well-balanced and presented no unpredictable ch...

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by convair880mfan
Thu May 19, 2022 1:03 pm
Forum: Travel, Polls & Preferences
Topic: Was there a person at Airbus who was most responsible for the A380 like Joe Sutter was responsible for the 747?
Replies: 1
Views: 658

Was there a person at Airbus who was most responsible for the A380 like Joe Sutter was responsible for the 747?

The internet gives conflicting information on this. Do any experts out there or enthusiasts with books on the A380 know the answer to this? Thanks in advance for any useful information.

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by convair880mfan
Tue May 17, 2022 11:27 pm
Forum: Technical/Operations
Topic: Would the Lockheed L-500 have been a good airliner?
Replies: 2
Views: 2113

Would the Lockheed L-500 have been a good airliner?

Would the civil version of the C-5 aircraft have made a good wide body airliner? I realize that with a smaller wing sweep than the Boeing 747 it was probably limited in cruise speed.

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by convair880mfan
Sun May 15, 2022 7:06 pm
Forum: Technical/Operations
Topic: YouTube video from 1975 of DC-10 motion flight simulator
Replies: 10
Views: 2555

Re: YouTube video from 1975 of DC-10 motion flight simulator

I remember an ad in a flying magazine about an airline that for a hefty fee allowed aviation enthusiasts to have 30 minutes in a simulator like the one in the video. I don't remember which airline it was now but it was in Denver if I recall. If I had the money I would have tried it out.

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by convair880mfan
Fri May 13, 2022 7:53 pm
Forum: Technical/Operations
Topic: Lockheed Martin Very Large Subsonic Airplane V type of -Tail
Replies: 4
Views: 2021

Lockheed Martin Very Large Subsonic Airplane V type of -Tail

The concept transport / airliner VLST design had a modified V type of tail in place of a traditional cruiciform or high T-tail. Was wondering about how failsafe such a tail design is or could be or if v-tails are appropriate for possible airplanes capable of transporting upward of 1000 passengers? A...

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by convair880mfan
Mon May 09, 2022 12:07 am
Forum: Technical/Operations
Topic: Double-hinged flap explained or shown??
Replies: 9
Views: 1687

Re: Double-hinged flap explained or shown??

Ok. Are these things on the wing of the DC-8 upper surface wing hinges or on the aileron?

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by convair880mfan
Sun May 08, 2022 11:48 pm
Forum: Technical/Operations
Topic: Double-hinged flap explained or shown??
Replies: 9
Views: 1687

Re: Double-hinged flap explained or shown??

Thanks to you all for the responses. Do you think a double hinged flap would simply be a duplicated lower hinge or do you think perhaps there would be an upper and lower hinge? Is there an upper hinge on the flaps of the Douglas DC-8? Sorry that I am not very smart abut such things.

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by convair880mfan
Sun May 08, 2022 4:18 pm
Forum: Technical/Operations
Topic: Double-hinged flap explained or shown??
Replies: 9
Views: 1687

Double-hinged flap explained or shown??

In Terry Waddington's book on the DC-10, page 106, he describes a DC-10-60 series of planes pitched to the airlines but never developed. He writes: "But the biggest change was to the flap system. Its small vaned version of the standard DC-10 was [to be] replaced by a double-hinged flap that inc...

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by convair880mfan
Thu May 05, 2022 7:11 pm
Forum: Travel, Polls & Preferences
Topic: Did TWA operate charter flights or American domestic flights beyond STL-JFK?
Replies: 7
Views: 2168

Did TWA operate charter flights or American domestic flights beyond STL-JFK?

I once flew a scheduled flight on TWA from St. Louis Lambert to NY JFK and back. Was wondering if TWA used the 747 to serve any other city pairs or whether it ever did charter flights either with its 747 or other types. Thanks.

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by convair880mfan
Wed May 04, 2022 6:58 pm
Forum: Aviation Photography
Topic: Fully automatic simulator experience with wing view?
Replies: 0
Views: 3219

Fully automatic simulator experience with wing view?

I'm a total newbie regarding flight simulator stuff but I like to watch full flight window view videos of flight because the sound of the flights relaxes me especially if it is done without human voice sound. I work on a suicide hotline which is very stressful. Wondering whether it is possible to ge...

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by convair880mfan
Sat Apr 30, 2022 2:47 pm
Forum: Technical/Operations
Topic: Did the large propliners of the past general fly around mountains rather than over them?
Replies: 1
Views: 2004

Did the large propliners of the past general fly around mountains rather than over them?

I've been watched old videos of the Boeing Stratoliner and Stratocruiser and the Lockheed Constellation and progeny as well as one on the DC-7C model. Some were pressurized more or less and had some higher altitude capabilities. Engine out capabilities were not that great though. Some of those huge ...

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by convair880mfan
Fri Apr 22, 2022 8:27 pm
Forum: Technical/Operations
Topic: Is there a common speed margin above stall for flap settings?
Replies: 5
Views: 1816

Is there a common speed margin above stall for flap settings?

Someone told me he thought flap settings were based on 10 knots above stall for various weights and configurations. Is that incorrect?

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by convair880mfan
Sun Mar 27, 2022 6:53 pm
Forum: Technical/Operations
Topic: Did the B747-400D have a better rate of climb than other 747 models?
Replies: 4
Views: 3024

Did the B747-400D have a better rate of climb than other 747 models?

Since the Boeing 747-400D, like the 747SR was developed exclusively for Japanese carriers, I would imagine that the only Flight and Operations manuals in existence are in Japanese. There is some data available for the type on the Boeing website, but I was wondering whether the D model performed bett...

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by convair880mfan
Thu Mar 24, 2022 9:58 pm
Forum: Travel, Polls & Preferences
Topic: What changes would Boeing have to make to the 747-8 to give it the capacity of the largest Airbus product?
Replies: 7
Views: 3334

What changes would Boeing have to make to the 747-8 to give it the capacity of the largest Airbus product?

People fooling around with photoshop software have produced imaginary extended upper deck 747 photos to show how one might look compared to the A-380. I am thinking that these fanciful photos would not actually be what such an aircraft would look like. I am guessing that there would be changes to th...

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by convair880mfan
Wed Mar 23, 2022 12:32 am
Forum: Civil Aviation
Topic: China Eastern 737-800 crashes in Guangxi, southern China
Replies: 1284
Views: 533737

Re: China Eastern 737-800 crashes in Guangxi, southern China

The video being circulated which is alleged to be of the aircraft involved in the dive . . . what is the backstory there? Did the videographer hear some kind of noise which caused him or her to look in that direction and capture what he or she videographed? Did someone just happen to be looking up i...

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by convair880mfan
Sun Mar 20, 2022 12:55 am
Forum: Technical/Operations
Topic: SOP pilot call-out differences?
Replies: 13
Views: 3840

SOP pilot call-out differences?

Watching a lot of airliner flight deck videos, I've noticed that there is some difference in the call-outs. On some videos the pilot flying calls out the final flap setting "Flaps X!" while on others the pilot might say "Full Flaps!" Or to cite another example, some pilots flying...

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by convair880mfan
Sun Mar 06, 2022 8:33 pm
Forum: Technical/Operations
Topic: Why do some AC manufacturers design flaps so that an initial setting brings out both some LEDS and TEFS?
Replies: 3
Views: 1803

Why do some AC manufacturers design flaps so that an initial setting brings out both some LEDS and TEFS?

Please correct me if I am wrong here, but it is my understanding that on some aircraft like the 727, 737 and others that lowering the flap lever to the first detent causes movement of both some LEDs and some TEFs. On the 747, I believe, [perhaps wrongly] that the initial flap detent brings out only ...

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by convair880mfan
Sun Mar 06, 2022 12:29 am
Forum: Technical/Operations
Topic: Question about quotation on MD-11 landing speeds.
Replies: 7
Views: 2644

Question about quotation on MD-11 landing speeds.

I came across this quote* from an MD-11 pilot and was wondering whether it is accurate of not. "And the landing speeds [of the MD-11] are 20-30 miles per hour faster (than the MD10s), so things happen faster." David Noland. "What's wrong with the MD-11 airplane." Popular Mechanic...

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by convair880mfan
Thu Mar 03, 2022 9:14 pm
Forum: Technical/Operations
Topic: What degree of bank angle is used by jetliners when making large wide turns?
Replies: 15
Views: 4449

What degree of bank angle is used by jetliners when making large wide turns?

I was watching a flight tracking site on the internet and saw aircraft making a very wide arc to line up with a runway at SEA. It seemed like the airliners were tracking northerly up the Puget Sound and then making a very slow wide turn to line up with the to-the-south active runway. Was wondering w...

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by convair880mfan
Sat Feb 26, 2022 8:46 pm
Forum: Travel, Polls & Preferences
Topic: Pilots as passengers: Personal memories flying on the L-1011?
Replies: 0
Views: 1189

Pilots as passengers: Personal memories flying on the L-1011?

Not sure there are any former Lockheed L-1011 Tristar pilots still around on these Forums so I am wondering if any of you pilots or other aviation professionals flew on that aircraft and have any personal memories of it?

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by convair880mfan
Sat Feb 26, 2022 5:58 pm
Forum: Technical/Operations
Topic: Right and left-handed pilots and side sticks?
Replies: 21
Views: 5487

Right and left-handed pilots and side sticks?

On airliner types using off-center "joysticks", are pilots who are flying the plane a bit uncomfortable operating the side stick with their non-dominant hand? I was thinking that if the airline Captain is always seated in the left hand seat on such aircraft and most people in the world are...

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by convair880mfan
Mon Feb 21, 2022 9:30 pm
Forum: Technical/Operations
Topic: Do some jetliners need to level off after takeoff climb to build speed for flap retraction?
Replies: 25
Views: 8040

Do some jetliners need to level off after takeoff climb to build speed for flap retraction?

A retired TWA captain told me that at heavy weights he would have to level off at 1500 feet above field level in order to build up speed for flap retraction or sometimes just barely climb. I think he flew 747-100s. Just wondering if now a days jetliners have trouble both climbing and building up spe...

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by convair880mfan
Sat Feb 19, 2022 5:35 am
Forum: Technical/Operations
Topic: Flap lowering sequence on this time lapse video of 747-400?
Replies: 4
Views: 1930

Flap lowering sequence on this time lapse video of 747-400?

https://youtu.be/eyz93nSwdaI
-->

I only count 4 flap movements on this 747-400 video. But the 747 has 6 settings. How to explain? 5-10-20-25? Can the 747 land with Flaps 25? What happened to Flaps 1? Any 747 skippers out there?

https://youtu.be/eyz93nSwdaI

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by convair880mfan
Fri Feb 18, 2022 9:25 pm
Forum: Technical/Operations
Topic: On FlightAware I have never seen aircraft land on Runway 13 at LGA
Replies: 26
Views: 6372

On FlightAware I have never seen aircraft land on Runway 13 at LGA

Do commercial aircraft ever land on RW 13 at LaGuardia? If not, is it because it would mean flying over the buildings on Manhattan? On FlightAware I often see landing commercial flight follow the Hudson River and then it seems like they turn around the I-95 bridge and finally turn to a final approac...

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by convair880mfan
Thu Feb 17, 2022 10:44 pm
Forum: Travel, Polls & Preferences
Topic: Was purchase price the main reason that the L-1011 did not sell as well as the DC-10?
Replies: 21
Views: 7640

Was purchase price the main reason that the L-1011 did not sell as well as the DC-10?

Several people have told me that the L-1011 was technologically superior to the DC-10. If that is true, was initial purchase price the main reason for less sales success of the Tristar compared to the Douglas product? I've also heard that production delays related to the Rolls Royce engines were als...

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by convair880mfan
Tue Feb 15, 2022 8:14 pm
Forum: Technical/Operations
Topic: Rule-of-thumb for when to extend flaps?
Replies: 10
Views: 3078

Rule-of-thumb for when to extend flaps?

I was looking at a table of Maximum Flap Extended Speeds for the Boeing 727. I am assuming one doesn't lower them right on these speeds. Is there a rule-of-thumb on what speed to lower them? Ten knows below these speeds of some other rule? Flaps 2 - 245 KIAS Flaps 5 - 230 KIAS Flaps 15 - 205 KIAS Fl...

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by convair880mfan
Mon Feb 14, 2022 8:02 pm
Forum: Technical/Operations
Topic: Did Douglas or Convair design the ill-fated cargo door/cargo door latching system?
Replies: 3
Views: 1884

Did Douglas or Convair design the ill-fated cargo door/cargo door latching system?

I know that Douglas subcontracted the manufacture of the fuselage barrel sections to Convair [GD] including the sections with the ill-fated cargo doors. But was the door and latching system a Douglas design or was the design also subcontracted? I seem to recall that after tragic accidents involving ...

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by convair880mfan
Mon Feb 14, 2022 5:02 pm
Forum: Technical/Operations
Topic: Why didn't the Boeing 707 have rudder problems similar to those of the Boeing 737?
Replies: 37
Views: 8636

Re: Why didn't the Boeing 707 have rudder problems similar to those of the Boeing 737?

Thank you all for such wonderful information. I am most appreciative of your efforts!

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by convair880mfan
Sat Feb 12, 2022 11:44 pm
Forum: Technical/Operations
Topic: Why is it that after professional engineering that some aircraft do not meet performance guarantees?
Replies: 3
Views: 1898

Why is it that after professional engineering that some aircraft do not meet performance guarantees?

Some aircraft are modified after flight testing to attempt or succeed at meeting customer performance guarantees or expectations. Don't know much about the history of Airbus and Boeing airliners, but McDonnell Douglas introduced PIPs to remedy or attempt to remedy performance shortcomings in the DC-...

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by convair880mfan
Sat Feb 12, 2022 11:36 pm
Forum: Technical/Operations
Topic: Why didn't the Boeing 707 have rudder problems similar to those of the Boeing 737?
Replies: 37
Views: 8636

Re: Why didn't the Boeing 707 have rudder problems similar to those of the Boeing 737?

Thanks for all that information! Am still a bit in the dark about whether the 707 had a single or dual rudders, a single or dual rudder actuators . . . if anyone can help there. It seems that the rudder on the 707 was aerodynamically balanced and actuated by means of cable-controlled tabs and incorp...

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by convair880mfan
Sat Feb 12, 2022 11:34 pm
Forum: Technical/Operations
Topic: Why didn't the Boeing 707 have rudder problems similar to those of the Boeing 737?
Replies: 37
Views: 8636

Re: Why didn't the Boeing 707 have rudder problems similar to those of the Boeing 737?

Thanks for all that information! Am still a bit in the dark about whether the 707 had a single or dual rudders, a single or dual rudder actuators . . . if anyone can help there. It seems that the rudder on the 707 was aerodynamically balanced and actuated by means of cable-controlled tabs and incorp...

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by convair880mfan
Sat Feb 12, 2022 4:49 pm
Forum: Technical/Operations
Topic: Why didn't the Boeing 707 have rudder problems similar to those of the Boeing 737?
Replies: 37
Views: 8636

Why didn't the Boeing 707 have rudder problems similar to those of the Boeing 737?

Looking at cutaway drawings of the Boeing 707, it appears that this aircraft did not have split rudders like the Boeing 727 and that it had a single rudder actuator system. Of course cutaway drawings don't show everything. Since I don't have detailed schematics of the Boeing 707 and its civil and mi...

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by convair880mfan
Fri Feb 11, 2022 11:48 pm
Forum: Technical/Operations
Topic: Do any jetliners sometimes require packs-off approaches?
Replies: 9
Views: 3312

Do any jetliners sometimes require packs-off approaches?

I know that some jetliners perform packs-off or one-pack off takeoffs in certain circumstances, but do any perform packs-off landings? I would think that since LGW is much lower than TGW, that even if go-around thrust were required that there would be no need to not use the packs but perhaps I am as...

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by convair880mfan
Tue Feb 08, 2022 2:58 pm
Forum: Technical/Operations
Topic: Was Flaps 10 used on the Convair 880 or 880M?
Replies: 2
Views: 940

Was Flaps 10 used on the Convair 880 or 880M?

Some manuals I have seen show take-off and initial approach charts beginning with Flaps 20 [Flaps 22 on the 880M]. Does that mean that Flaps 10 was not used or rarely used? The same charts show Flaps 20 to Flaps Up after takeoff without a stop at Flaps 10. Anyone know? Thanks for any information.

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