Search found 3216 matches

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by Dalmd88
Mon Jan 24, 2022 12:32 am
Forum: Civil Aviation
Topic: Status of Delta 777’s
Replies: 20
Views: 5440

Re: Status of Delta 777’s

GalaxyFlyer wrote:
Because the A350 replaced them and the 777 is too large for 767 routes. Money

Retiring the 777 also eliminated the 777 pilot category. Getting rid of the old model 767 would not have done that since they are all part of the 767/757 group.

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by Dalmd88
Sun Jan 23, 2022 4:08 pm
Forum: Civil Aviation
Topic: Small GA aircraft made in 1947 onwards how are they still flying?
Replies: 14
Views: 1720

Re: Small GA aircraft made in 1947 onwards how are they still flying?

Part of the equation for the older aircraft is the service history. If the 70 year old aircraft has been continuously maintained, updated and flown for it's entire life, then it's economically feasible to own. A 'barn find' on the other hand is a money pit nightmare. You know you are doing a full en...

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by Dalmd88
Sun Jan 09, 2022 3:16 am
Forum: Technical/Operations
Topic: Curvature of PW JT8D engine assembly?
Replies: 4
Views: 1179

Re: Curvature of PW JT8D engine assembly?

It has to do with what you are calling the engine. Looking at the first pic of the engine on the trailer, the true engine is sitting directly above the trailer. Every part that is hanging fore or aft of the ends of the trailer are just inlet or exhaust ducts and the thrust reverser. With a bare JT8D...

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by Dalmd88
Sun Jan 09, 2022 2:57 am
Forum: Civil Aviation
Topic: Should Delta put scimitars on their 757s?
Replies: 51
Views: 10816

Re: Should Delta put scimitars on their 757s?

Not really faith-inspiring. I think the TechOps teams know a bit more about materials and strength ratings than you do. Doesn’t mean they are infallible. We’re not talking about a worn-out carpet after all. Aviation history is rife with crashes occurring after some “expert” decided something was “w...

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by Dalmd88
Wed Jan 05, 2022 9:53 pm
Forum: Civil Aviation
Topic: Should Delta put scimitars on their 757s?
Replies: 51
Views: 10816

Re: Should Delta put scimitars on their 757s?

The DL 757s do a lot of short flights—ATL, DTW to Florida. SRQM RSW, MCO, TPA, MIA, FLL, you can count on being on a 757. The winglets don’t reduce consumption, might even slightly increase it. And the 757-200s are the backbone of the sports charter fleet, which are also many short flights ... But ...

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by Dalmd88
Mon Jan 03, 2022 11:50 pm
Forum: Civil Aviation
Topic: Should Delta put scimitars on their 757s?
Replies: 51
Views: 10816

Re: Should Delta put scimitars on their 757s?

they don't even have regular winglets on all of their 757's, which I was kinda surprised about. That's because some of the fleet can not have winglets installed due to previously installed wing repairs. Each aircraft had to be approved for the mod. The wing loading that the blended winglet adds was...

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by Dalmd88
Sat Dec 25, 2021 5:26 pm
Forum: Technical/Operations
Topic: A Question About Engine Choices and Interchangeability
Replies: 6
Views: 1203

Re: A Question About Engine Choices and Interchangeability

Thanks for the information. I thought that it might be quite a complex job. I've just read that the 777X and the A-350 don't have any choice; the former has GE, the latter RR only. Similarly, the A-330-200 and -300 had a choice of P+W, RR and GE, but the -800 and -900 have RR only. I wonder if ther...

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by Dalmd88
Sat Dec 25, 2021 5:16 pm
Forum: Civil Aviation
Topic: United dropping 14 routes
Replies: 120
Views: 21860

Re: United dropping 14 routes

One thing that was brought up in another thread. The moving from IAD to EWR could be to protect slots at EWR. So this could be temp until post COVID when we get back to more normal frequencies.

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by Dalmd88
Fri Dec 24, 2021 2:43 pm
Forum: Technical/Operations
Topic: Altimeters, static pressure, and lift
Replies: 48
Views: 2572

Re: Altimeters, static pressure, and lift

When the Reduced Vertical Separation Minimum limits came into being about 15 years ago there were a lot of new inspections and restrictions put in place for static ports and the surrounding area. For a plane to be RVSM legal it has to pass a very detailed flatness inspection in the area around the s...

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by Dalmd88
Thu Dec 23, 2021 6:22 pm
Forum: Technical/Operations
Topic: A Question About Engine Choices and Interchangeability
Replies: 6
Views: 1203

Re: A Question About Engine Choices and Interchangeability

For most engines it requires a pylon change to change engine manufacturer. That also includes a change of the thrust reversers It is pretty big and expensive job so so you just don't see many mods of this type anymore. The last I can really think of are the UPS 727 mod that swapped out the JT8 for t...

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by Dalmd88
Sun Dec 05, 2021 2:10 pm
Forum: Civil Aviation
Topic: Passenger jumps from WN aircraft taxiing in PHX
Replies: 12
Views: 4676

Re: Passenger jumps from WN aircraft taxiing in PHX

Allot of this doesn't make operational sense. Let's get past the "REPORT 'IT' NOW" nonsense and wait for the whole story to unfold . Nothing on this is really inaccurate. The passenger did jump out of the aft door right at the intersection of taxiway Sierra and Delta and onto the taxiway ...

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by Dalmd88
Thu Dec 02, 2021 8:54 pm
Forum: Technical/Operations
Topic: Aircraft External Wires
Replies: 9
Views: 1956

Re: Aircraft External Wires

https://www.seaerospace.com/faqs/529
-->

Here is a good explanation of the types of HF antenna on aircraft.

https://www.seaerospace.com/faqs/529

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by Dalmd88
Tue Nov 30, 2021 4:20 pm
Forum: Civil Aviation
Topic: Delta 201 - JNB to BOS 7,900+ Miles Yesterday
Replies: 58
Views: 12702

Re: Delta 201 - JNB to BOS 7,900+ Miles Yesterday

The plane landed at BOS around 0920, so that landing was an hour later than the scheduled arrival into ATL. They were probably getting into their reserve fuel. Well, it left Johannesburg nearly 2.5 hours late ... Given that the flight was dispatched from Johannesburg to Boston (and not Atlanta), I'...

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by Dalmd88
Thu Nov 25, 2021 2:37 pm
Forum: Technical/Operations
Topic: Complicated, by design. But is it really?
Replies: 20
Views: 3410

Re: Complicated, by design. But is it really?

Touch screens is a hard no for me. I hate them in my car. Nice part of an airplane flight deck is tactile feel. Once you know the placement of everything, you don't need to look at it to push the button or turn the selector. I think the auto manufacturers are just finally coming around to the idea t...

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by Dalmd88
Mon Nov 15, 2021 9:32 pm
Forum: Civil Aviation
Topic: Delta charter A330?
Replies: 19
Views: 4476

Re: Delta charter A330?

Its a standard mainline aircraft taken out of scheduled service to operate charters. Airplane is in ATL heading to SLC then HNL on scheduled service. Usually coaches sit in the front cabin, players in the back with empty seats open next to them. I know Air Canada has the Jetz all business configura...

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by Dalmd88
Sat Nov 13, 2021 11:26 pm
Forum: Technical/Operations
Topic: Why fuel driven actuators?
Replies: 14
Views: 1817

Re: Why fuel driven actuators?

There is also the airframe/engine divide. Hydraulics are considered airframe components. Yes there is a hydraulic pump mounted to the engine, but the engine manufacturer does not provide it with the engine. The fuel pump is an engine component so they can use the excess muscle fuel pressure to run e...

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by Dalmd88
Sun Nov 07, 2021 2:48 pm
Forum: Civil Aviation
Topic: Startup plans to electrify BAe146 plane
Replies: 27
Views: 5626

Re: Startup plans to electrify BAe146 plane

My guess is they'll need at least four electric motors and the 146 offers four engine pylons vs. the CRJ's two. I'd be surprised if this goes beyond a proof of concept, so the amount of feedstock wouldn't be an issue. How many 146 are available, not flying? If this works, they need to design a new ...

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by Dalmd88
Sun Oct 31, 2021 4:06 pm
Forum: Technical/Operations
Topic: Is it dangerous when aircraft carry fuel in a center tank beneath the passenger cabin?
Replies: 43
Views: 3556

Re: Is it dangerous when aircraft carry fuel in a center tank beneath the passenger cabin?

The 727 also had an optional cargo hold tanks like the Airbus ACT system. I recall some of our old Western 727 had the aft tank installed and the provision for a fwd cargo tank. The aft tank sat just fwd of the aft cargo door. Overhauls for those planes were a real pain. The tank had to be removed t...

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by Dalmd88
Sat Oct 09, 2021 2:43 pm
Forum: Civil Aviation
Topic: Airline Employee Covid Vaccination Rates
Replies: 302
Views: 35263

Re: Airline Employee Covid Vaccination Rates

At Delta this week, the frontline did expect the mandate to come out by the end of the week. All we heard was a, "we are looking into the matter." A couple of the AMT's I work with have stated that the moment the mandate comes out, they push the button on retirement paperwork. They are not...

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by Dalmd88
Sun Oct 03, 2021 12:10 am
Forum: Civil Aviation
Topic: Airline Employee Covid Vaccination Rates
Replies: 302
Views: 35263

Re: Airline Employee Covid Vaccination Rates

As a Delta employee I'm waiting to see when Delta joins the ranks of the must be vaxed. Company wide we are in the high 80% range I think. The drag down is mostly in my division, Tech Ops, I think. Last I heard we were around 74% with the first shot. I know there are more hold outs than I would like...

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by Dalmd88
Fri Oct 01, 2021 1:17 pm
Forum: Technical/Operations
Topic: Software as a service and Commercial Airliners
Replies: 8
Views: 986

Re: Software as a service and Commercial Airliners

Engines already do this. The trust rating is set by what you pay. It can be changed within the range by a easy reprogram of the EEC. We do it on shop visits all the time.

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by Dalmd88
Sun Sep 26, 2021 4:11 pm
Forum: Civil Aviation
Topic: Hawaiian 460 diversion into MDY (Sand Island, Midway Atoll)
Replies: 77
Views: 18008

Re: Hawaiian 460 diversion into MDY (Sand Island, Midway Atoll)

Midway Island is a manned airport that is a regular fueling stopping point for US military flights that are transiting the Pacific. The US Air Force runs the airport, mostly with contractors. They have a hotel, restaurant, store and all the basic equipment needed to off load an engine from a cargo f...

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by Dalmd88
Wed Sep 22, 2021 9:22 pm
Forum: Technical/Operations
Topic: Do I need a manual driving license to be a Ramp Agent or is an automatic license satisfactory?
Replies: 19
Views: 1876

Re: Do I need a manual driving license to be a Ramp Agent or is an automatic license satisfactory?

I second the stay in school advice. Dropping out of school to sling bags isn't my idea of getting very much into aviation as a career. Yes some people do make a career of ramp agent, possibly moving into gate agent or off to a cargo department or maintenance stores. My question is about the UK auto ...

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by Dalmd88
Sun Sep 19, 2021 3:59 pm
Forum: Technical/Operations
Topic: Delta TechOps Line Technician
Replies: 18
Views: 2830

Re: Delta TechOps Line Technician

Is the 2 or 3 year commitment to a station when you hire in a hard and fast rule? Or are there situations where they let people bid out prior to meeting the commitment? it's a pretty hard rule. The two exceptions I've seen is you bid up to a higher class of job at another station. Say AMT to Lead A...

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by Dalmd88
Sun Sep 19, 2021 3:53 pm
Forum: Civil Aviation
Topic: Sun Country Network Thread 2021
Replies: 89
Views: 6712

Re: 2 SY 738's damaged in storm at MSP

Small planes are often chained to the ground. I wonder if they can't do something like that with big ones as well? At least during severe weather it could be worthwhile. Large aircraft are not equipped with mooring points like small aircraft are. Ramps at major airports also rarely have ground poin...

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by Dalmd88
Sat Sep 18, 2021 7:37 pm
Forum: Technical/Operations
Topic: Delta TechOps Line Technician
Replies: 18
Views: 2830

Re: Delta TechOps Line Technician

Might be headed for SAN with them. Is there a step pay progression? Yes, there is a step progression. Hard to fill stations hire in at 1.5 year mark of the 8 year top out. I'll be honest I don't even know what the top out pay is right now. I think it's around $52 hr. I've never really understood th...

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by Dalmd88
Thu Sep 16, 2021 7:46 pm
Forum: Technical/Operations
Topic: Delta TechOps Line Technician
Replies: 18
Views: 2830

Re: Delta TechOps Line Technician

All bids now have a 2 year min stay unless you bid up. A lot of the hard to fill stations tend to like to hire locals. There is less chance of losing an AMT to a transfer bid after the 2 years. System wide there is an influx of new hires now. In ATL at the TOC we have a lot of contractors on a Poten...

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by Dalmd88
Mon Sep 13, 2021 3:02 pm
Forum: Technical/Operations
Topic: Personal items left onboard American Airlines flight
Replies: 10
Views: 2384

Re: Personal items left onboard American Airlines flight

when I worked Line MTC the mechanics were usually on board the overnight airplanes before the cleaning crew. I always walked the cabin as one of the first things I did on an overnight airplane. My main personal goal was to find the new reading material that was left. I was always on the look out for...

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by Dalmd88
Mon Sep 13, 2021 2:47 pm
Forum: Civil Aviation
Topic: Air Canada Toronto - Atlanta - Miami 787 run
Replies: 9
Views: 2385

Re: Air Canada Toronto - Atlanta - Miami 787 run

I have seen that with the pandemic, many such cargo flights have sprung up around the world, many utilizing passenger aircraft aka preighters. What I wonder about is where these cargo needs were before the pandemic, or are they now necessitating such aircraft use because of reduced passenger flight...

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by Dalmd88
Sat Sep 04, 2021 12:40 pm
Forum: Civil Aviation
Topic: Eastern Airlines launches Eastern Air Cargo
Replies: 109
Views: 12941

Re: Eastern Airlines launches Eastern Air Cargo

One poster has said "Removing seats, galleys and lavatories doesn't happen overnight". From my heavy mtc experience it actually does happen overnight. The cabin would not be ready for cargo, but a motivated crew can strip the cabin of seats and galleys in just a couple of shifts. It's not ...

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by Dalmd88
Sun Aug 29, 2021 7:26 pm
Forum: Technical/Operations
Topic: Airplane Air Circulation Questions
Replies: 10
Views: 1832

Re: Airplane Air Circulation Questions

At the gate, power is being provided by the jetway. Most airports also have a conditioned air hose or two that supply air directly to the aircraft ducting. During taxi there is more than enough air volume from a single engine at idle to cool and provide fresh air. When sitting a during a delay the c...

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by Dalmd88
Tue Aug 24, 2021 9:37 am
Forum: Civil Aviation
Topic: Rumor: Delta 330 order
Replies: 136
Views: 34993

Re: Rumor: Delta 330 order

Which use an engine that DL doesn’t use. I can’t see DL picking up a 3rd A330ceo engine type. Always did wonder to what degree (if any) that would be mitigated by the RRs on the A339s. Can anyone more familiar with ops/MRO chime in as to whether they share sufficient design/parts with T700 as to be...

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by Dalmd88
Mon Aug 23, 2021 9:25 pm
Forum: Technical/Operations
Topic: Does the DC-10 nose gear strut not meet the ground at a 90 degree angle?
Replies: 13
Views: 2305

Re: Does the DC-10 nose gear strut not meet the ground at a 90 degree angle?

And changing wheels without a jack. Not that anyone would ever use disobey an AMM. Interesting! with all the weight on the wheels, how does that work exactly? Deflate the tire, replace with a deflated tire, re-inflate? Easy, turn on hydraulics, steer the nose to the good tire. Throw a chalk under i...

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by Dalmd88
Mon Aug 23, 2021 9:16 pm
Forum: Technical/Operations
Topic: "Silver dollar patch"?? MD-95 /Boeing 717
Replies: 5
Views: 1320

Re: "Silver dollar patch"?? MD-95 /Boeing 717

Never heard that before but I would guess it is a typical small round sheemetal repair. Many small dents are repaired with a patch that is about the size of a silver dollar or the end of a aluminum can.

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by Dalmd88
Thu Aug 19, 2021 7:39 pm
Forum: Technical/Operations
Topic: MD-80 Series Winglets?
Replies: 8
Views: 1927

Re: MD-80 Series Winglets?

I don't think there were any winglet mods for any of the MD80/90 series.

There was a short lived mod for the 727. I recall Delta tried them for a short while.

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by Dalmd88
Mon Aug 02, 2021 1:37 pm
Forum: Technical/Operations
Topic: Embraer E-jet questions.
Replies: 8
Views: 1674

Re: Embraer E-jet questions.

The buzz you hear is likely a seal issue. As Zeke said, possibly some debris in the door frame. The seal is good but there is something preventing it to seal at lower differential pressures. The place to look is the frame surface of the fuselage. Many aircraft have body filler in the seal area to ma...

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by Dalmd88
Sun Jul 25, 2021 2:39 pm
Forum: Technical/Operations
Topic: When did TWA start putting those big black stripe ice detectors on their aircraft wings?
Replies: 13
Views: 2224

Re: When did TWA start putting those big black stripe ice detectors on their aircraft wings?

MD80's had a major problem with wing surface ice. And yes it could cause an engine out if ingested. The inboard section of the wing could form a layer of ice just sitting at the gate on a warm humid day. The remaining fuel from the inbound fight was super cooled and was all in the inboard end of the...

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by Dalmd88
Sun Jul 25, 2021 2:19 pm
Forum: Technical/Operations
Topic: A321 Tire Replacement
Replies: 18
Views: 6169

Re: A321 Tire Replacement

One dumb question: does airline usually equipped their aircraft with spare tires whenever they fly to an outstation? Might cost them some money in weight and potential cargo space, but it'll really helpful in a case like this. CMIIW, I heard that airlines are actually friendly to each other in term...

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by Dalmd88
Fri Jul 23, 2021 7:32 pm
Forum: Civil Aviation
Topic: Updated: Used Delta Aircraft Purchase A359/737-900ER
Replies: 985
Views: 282024

Re: Updated: Used Delta Aircraft Order A359/737-900ER

Question for the Tech Ops.guys. Does Delta need to wait for the FAA sign off on the mods they do to the first Lion Air ac. before they start mods on the ensuing ac.? Thanks No, as long as the cabin outfitting is identical to the ones currently in the fleet. If they didn't deactivate the mid cabin e...

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by Dalmd88
Sun Jul 18, 2021 2:20 pm
Forum: Technical/Operations
Topic: Pratt and Whitney JT8D Production
Replies: 6
Views: 1551

Re: Pratt and Whitney JT8D Production

This Wikipedia article states that regular JT8D production ended in 1985? But how is that possible when the last MD-80 was delivered in 1999 and I'm sure airlines still needed replacement engines up until recently? Is the article wrong? And if so, when would the last ones have been built? Thank you...

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by Dalmd88
Sun Jul 18, 2021 2:03 pm
Forum: Civil Aviation
Topic: Updated: Used Delta Aircraft Purchase A359/737-900ER
Replies: 985
Views: 282024

Re: Updated: Used Delta Aircraft Order A359/737-900ER

Don't these LionAir 739s have a door aft of the wing where as DL only has a plug? Even when the door is plugged, the opening is still there. DL will just swap the door for a plug. The 'plug' is actually the deactivated door with a blank interior panel covering the opening. That door is only intende...

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by Dalmd88
Sat Jul 17, 2021 2:24 pm
Forum: Technical/Operations
Topic: Pratt and Whitney JT8D Production
Replies: 6
Views: 1551

Re: Pratt and Whitney JT8D Production

This Wikipedia article states that regular JT8D production ended in 1985? But how is that possible when the last MD-80 was delivered in 1999 and I'm sure airlines still needed replacement engines up until recently? Is the article wrong? And if so, when would the last ones have been built? https://e...

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by Dalmd88
Sun Jun 27, 2021 1:52 pm
Forum: Civil Aviation
Topic: Airlines vaccinating their personnel/staff
Replies: 62
Views: 7466

Re: Airlines vaccinating their personnel/staff

Delta has been giving employees vax on site in many of the stations. We even had a public state mass drive though site at the General Offices back in the winter. I think it was the first State site to open up. There has been no get it or lose your job threats. Only strong encouragement Including pay...

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by Dalmd88
Sun Jun 06, 2021 7:41 pm
Forum: Civil Aviation
Topic: "Delta's 757s are their biggest liability"
Replies: 100
Views: 22523

Re: "Delta's 757s are their biggest liability"

Heh, would be cool if the 757s got the DC9 treatment and flew in modest numbers (even just 30 or 40) past 2030. Possible? Probably, unless fuel becomes an issue. The 757 fleet did get a complete interior overhaul just a few years ago when they were converted to a standard 199 pax config. All new ov...

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by Dalmd88
Wed Jun 02, 2021 8:39 pm
Forum: Technical/Operations
Topic: Retro-jet maintenance
Replies: 8
Views: 2740

Re: Retro-jet maintenance

There really isn't much to keeping the bare aluminum nice. Just a lot of manpower. It's just a pneumatic driven buffer with a very light polishing compound. It's similar to what is used when a car is detailed. It is a mind numbing task in my eyes. I worked a maintenance contract once where we had to...

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by Dalmd88
Mon May 24, 2021 8:43 pm
Forum: Technical/Operations
Topic: Post retirement…options
Replies: 22
Views: 4156

Re: Post retirement…options

I'm in the same age group. My plan is very much like fr8mech. When my window to retire opens in 7-8 years I'm out if it make financial sense. My wife will still be working. We plan on moving to a more retirement friendly area where she can still work remotely and I can do what ever. I do not intend ...

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by Dalmd88
Sat May 22, 2021 2:43 pm
Forum: Civil Aviation
Topic: Trump's Parked 757 N757AF
Replies: 158
Views: 60602

Re: Trump's Parked 757 N757AF

The plane is 30 years old and is probably unlikely to return to service. Let's avoid political rhetoric Given this was Paul Allens plane then Trumps. How many cycles does this plane have? I bet it is very low for a 30 year old plane. I bet the limitations are how long Boeing supports the 757 and Ro...

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by Dalmd88
Mon May 10, 2021 8:00 pm
Forum: Technical/Operations
Topic: Which planes run out of engine hours first
Replies: 17
Views: 5587

Re: Which planes run out of engine hours first

Yes, EGT is Exhaust Gas Temp. It's a parameter that can gauge the health of an engine. Each engine model has a max EGT limit for normal operation. On a test run the EGT is recorded at max power. The engine has to make full max rated power with an EGT temp lower than max temp. If it doesn't then the ...

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by Dalmd88
Thu May 06, 2021 9:38 pm
Forum: Civil Aviation
Topic: Delta Fleet Thread - 2021
Replies: 1660
Views: 368458

Re: Delta 757s without winglets?

Some of the non winglet 757 are not approved for winglets. Structural repairs to the wing skin or interior can make the plane not approved for the mod. The winglet adds a lot of load to the wing. Yes, there is a lot of modification that takes place inside the wing as part of the package, but sometim...

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by Dalmd88
Sat Apr 24, 2021 4:00 pm
Forum: Technical/Operations
Topic: Why can a pax stand upright in downstairs toilets?
Replies: 10
Views: 4261

Re: Why can a pax stand upright in downstairs toilets?

One thing to remember is in a cargo bin area of the belly you have the container handling system installed in the floor. that takes up at least 6-8" (15-20mm). So if you were to put a permanent crew structure or passenger lav in that space the floor can be lower in the bilge area. There is a lo...

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