Search found 85 matches

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by VMCA787
Mon Nov 30, 2020 7:54 pm
Forum: Technical/Operations
Topic: Those who fly airplanes with FBW flight envelope protections
Replies: 20
Views: 1508

Re: Those who fly airplanes with FBW flight envelope protections

AF447 was the classic deep stall and they would have need a good 15,000 to recover due to the long spool up time on the engines at low airspeed. IVSI through the floor, airspeed stable and no wing rock! I would like to speak with someone how who has stalled a 767 or any underwing large transport. I ...

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by VMCA787
Mon Nov 30, 2020 5:29 pm
Forum: Technical/Operations
Topic: What is it like in Military Aviation?
Replies: 2
Views: 569

Re: What is it like in Military Aviation?

I spent 11 years on active duty and another 10 in the ANG/AFRES. First of all, with no college degree, the USAF and USN will not even talk to you. So, the Army is the only option. I would imagine it is similar to the AF/USN. SUPT (AF Pilot Training) is extremely competitive. It is surprising how lit...

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by VMCA787
Mon Nov 30, 2020 5:21 pm
Forum: Technical/Operations
Topic: Those who fly airplanes with FBW flight envelope protections
Replies: 20
Views: 1508

Re: Those who fly airplanes with FBW flight envelope protections

Jet transports with "conventional" layout (ie. moderately swept wing, underslung engines, conventional tail, like A320/737/767 etc.) actually have inherently benign stall behaviour - they provide adequate warning (buffeting) and don't have tendency for deep stall etc. They normally do not...

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by VMCA787
Sun Nov 29, 2020 9:15 pm
Forum: Military Aviation & Space Flight
Topic: Could a SSBN launch on the surface?
Replies: 17
Views: 1566

Re: Could a SSBN launch on the surface?

Wouldn't happen on a conveyor belt. Only in a glass snow globe!!!

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by VMCA787
Sat Nov 28, 2020 8:35 pm
Forum: Military Aviation & Space Flight
Topic: Could a SSBN launch on the surface?
Replies: 17
Views: 1566

Re: Could a SSBN launch on the surface?

A little more info, the 4,500 PSI HP Air system is used both for missile blow and to blow the ballast tanks. There are a pair of HP air compressors on board that compress the air into tanks, with sufficient tanks around the boat to blow all of the ballast tanks up to launch depth and to fire all of...

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by VMCA787
Sat Nov 28, 2020 2:18 pm
Forum: Civil Aviation
Topic: QY841 (EAT Leipzig A300-600F) rejected takeoff in Brussels
Replies: 12
Views: 2490

Re: QY841 Rejected takeoff after V1

Isn’t the fact that the plane stopped on the runway proof that it was not above V1 speed when decision was made to abort, and this is just a high speed RTO? V1 depends on factors such as a weight, you can’t just look at a speed a say oh that plane was above V1 because google tells you that’s the A3...

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by VMCA787
Thu Nov 26, 2020 4:53 pm
Forum: Civil Aviation
Topic: Viability (& Legality) of Combi Aircraft Moving Forward
Replies: 35
Views: 3175

Re: Viability (& Legality) of Combi Aircraft Moving Forward

Cubsrule wrote:

My point was simply that if money is no object, a compliant combi can be built and certified.


And as you wrote, there was no commercial case!

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by VMCA787
Thu Nov 26, 2020 4:46 pm
Forum: Civil Aviation
Topic: Viability (& Legality) of Combi Aircraft Moving Forward
Replies: 35
Views: 3175

Re: Viability (& Legality) of Combi Aircraft Moving Forward

There’s no regulatory reason that Boeing couldn’t build and certify a 74M-like 77W combi with a proper main deck cargo door and a rigid divider (or the same for Airbus and a 330 or 350). Whether there’s a commercial case for that sort of aircraft is a different matter. Not quite. After the SAA 747 ...

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by VMCA787
Tue Nov 24, 2020 5:20 pm
Forum: Military Aviation & Space Flight
Topic: Land Based Trident
Replies: 14
Views: 1072

Re: Land Based Trident

IIRC the W-56 Mod 1,2 and 3 were not in service in the 70s they were withdrawn in 66 and the Mod 4 started production in 69. The temperamental part was the overpressurization risk when the warhead was disassembled. I am very familiar with what fratricide is but you don't need to loft 3 warheads to a...

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by VMCA787
Tue Nov 24, 2020 5:00 pm
Forum: Travel, Polls & Preferences
Topic: Impossible city pairs
Replies: 28
Views: 2483

Re: Impossible city pairs

LAX772LR has a thread observing that the A350-900ULR isn't selling, either: https://www.airliners.net/forum/viewtopic.php?f=3&t=1454481 . The A350-900ULR isn't a type aircraft. It is a mod, so if the 350-900 is selling well so is the ULR. In reality, it costs Airbus nothing to modify the aircra...

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by VMCA787
Tue Nov 24, 2020 8:41 am
Forum: Military Aviation & Space Flight
Topic: Land Based Trident
Replies: 14
Views: 1072

Re: Land Based Trident

Well, if you used the Trident II D5 as a land based ICBM, its inferior performance (to the MX) would cost you in target flexibility and payload options. Of course, the MX is long gone and the Minuteman III is going to be replaced. That being said, the Minuteman III has far less capability than the ...

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by VMCA787
Mon Nov 23, 2020 12:07 pm
Forum: Military Aviation & Space Flight
Topic: Could a SSBN launch on the surface?
Replies: 17
Views: 1566

Re: Could a SSBN launch on the surface?

When the launch is underwater the missile is ejected from the tube by way of a steam charge. The missile has enough momentum to clear the tube and make its way to the surface and continue airborne. The missile ignition is initiated by an accelerometer which senses when the missile has stopped travel...

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by VMCA787
Mon Nov 23, 2020 10:17 am
Forum: Military Aviation & Space Flight
Topic: Could a SSBN launch on the surface?
Replies: 17
Views: 1566

Re: Could a SSBN launch on the surface?

Yes, the Tridents can be launched on the surface. One of the "selling points" of the 726/Trident program was the ability to strike targets while berthed in the ship's home port. The previous generation Posideon/Polaris couldn't do that as they lacked the range to hit the designated targets.

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by VMCA787
Mon Nov 23, 2020 10:05 am
Forum: Military Aviation & Space Flight
Topic: Land Based Trident
Replies: 14
Views: 1072

Re: Land Based Trident

The reason is different requirements. The Trident II compared to the Peacekeeper has more range and carried two fewer warheads depending on the yield selected. In addition, the CEP for the Peacekeeper was much better than the Trident. So, the Trident was essentially more missile, in terms of range t...

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by VMCA787
Sun Nov 22, 2020 7:11 pm
Forum: Technical/Operations
Topic: Why not put some fire extinguisher foam on the ground?
Replies: 25
Views: 3242

Re: Why not put some fire extinguisher foam on the ground?

My comments were regarding ignition only. I never wrote about the presence of what happens after the ignition source.

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by VMCA787
Sun Nov 22, 2020 5:16 pm
Forum: Technical/Operations
Topic: Why not put some fire extinguisher foam on the ground?
Replies: 25
Views: 3242

Re: Why not put some fire extinguisher foam on the ground?

"The only thing that can easily exit the aircraft and burn are fuel and hydraulic fluid." Fuel easily burns but hydraulic fluid (LD4 or more commonly known as Skydrol) does not support a flame. I think you will find Jet fuel is very much the same. In fact, you can put a match in a bucket ...

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by VMCA787
Sun Nov 22, 2020 5:09 pm
Forum: Civil Aviation
Topic: Do you see airlines changing crew rostering strategies in future?
Replies: 19
Views: 2998

Re: Do you see airlines changing crew rostering strategies in future?

a350lover wrote:
VMCA787 wrote:
To be honest, the days of pilot's based in a foreign country, exclude the EU, are, I think, gone.


It's been with the pass of the time less and less popular among pilots' groups, but still quite numerous for flight attendants?


I think you'll find that isn't true either....

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by VMCA787
Sun Nov 22, 2020 12:03 pm
Forum: Civil Aviation
Topic: Do you see airlines changing crew rostering strategies in future?
Replies: 19
Views: 2998

Re: Do you see airlines changing crew rostering strategies in future?

To be honest, the days of pilot's based in a foreign country, exclude the EU, are, I think, gone. When I went to work for SQ, I was hired as a 744 Capt based in LHR. The rationale for SQ to open an LHR base was they would save money due to the GBP vs SQ$ and other welfare items that they would not h...

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by VMCA787
Fri Nov 20, 2020 9:40 pm
Forum: Travel, Polls & Preferences
Topic: When Did US Airlines Stop Flying 747's For Routes Within The US?
Replies: 26
Views: 1553

Re: When Did US Airlines Stop Flying 747's For Routes Within The US?

The MSP-ORD 747 turned to do ORD-NRT in about 2 hours after it landed in ORD. It was crewed by a heavy crew (2 Captains, 1 F/O and 2 S/Os) who then did the ORD-NRT segment. The aircraft would have arrived at MSP the evening before as ORD-MSP. IIRC it was NW 3 Westbound and NW 4 Eastbound.

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by VMCA787
Thu Nov 19, 2020 6:42 pm
Forum: Technical/Operations
Topic: Installed Engine Attitude
Replies: 32
Views: 2071

Re: Installed Engine Attitude

FWIW here is an extreme example of engine re-alignment by means of custom made extendable nose gear. This adaptation was in order to provide "vectored" thrust when it was most needed - when taking off from the rather short deck of a Royal Navy aircraft carrier. The extended nose gear for ...

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by VMCA787
Tue Nov 17, 2020 9:22 am
Forum: Travel, Polls & Preferences
Topic: Will triangular flights become a thing again?
Replies: 30
Views: 2290

Re: Will triangular flights become a thing again?

So what? We had paper tickets for decades and decades, and now they are gone, obsoleted by e-tickets. I'm just saying that there's no particular reason that first landing has to be port of entry; it's that way only because that's how we've always done it. I think it would be useful to consider alte...

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by VMCA787
Mon Nov 16, 2020 7:25 pm
Forum: Technical/Operations
Topic: Pilot and business
Replies: 15
Views: 1371

Re: Pilot and business

For all the carriers I have worked for, you are prohibited from any flying for other than the airline you are working for. There is an exclusion for things like the ANG/RES flying. And, there is also a non-compete clause that prohibits you from working in the airline industry.

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by VMCA787
Mon Nov 16, 2020 7:23 pm
Forum: Travel, Polls & Preferences
Topic: Will triangular flights become a thing again?
Replies: 30
Views: 2290

Re: Will triangular flights become a thing again?

Just love all the experts. The first point of entry requirement has been like that for decades and decades. It is not only the US but most other countries have the same procedure. Amazing that you object as no one else has in all the years it's been a requirement. If you think about it, it actually ...

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by VMCA787
Mon Nov 16, 2020 5:36 pm
Forum: Travel, Polls & Preferences
Topic: Will triangular flights become a thing again?
Replies: 30
Views: 2290

Re: Will triangular flights become a thing again?

The other issue is legally, the passengers have to clear customs and immigration at the first port of entry. So, until the law changes you are stuck with the current procedure. It is not unique to the US and it tends to be the norm.

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by VMCA787
Mon Nov 16, 2020 6:37 am
Forum: Technical/Operations
Topic: Why can't flight data and CVR record be sent to the ground stations continuously by satellite and/or VHF?
Replies: 50
Views: 3301

Re: Why can't flight data and CVR record be sent to the ground stations continuously by satellite and/or VHF?

What about a memory farm that tracks every aircraft but only saves data 30 minutes at a time? Every aircraft's location every 30 seconds or so but for only saved for 30 minutes at a time. When that aircraft is landed and no anomalies reported, data is deleted from the ground base? Once you've got t...

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by VMCA787
Sat Nov 14, 2020 12:34 pm
Forum: Technical/Operations
Topic: Why do aircrews stay in cities and not near the airport?
Replies: 80
Views: 6918

Re: Why do aircrews stay in cities and not near the airport?

Have to say, that has been my experience too. Generally, the discounts are substantial and there other things thrown in too, such as discounts on meals, laundry free gym, upgrade to executive floor, free or substantially reduced laundry and a host of other things too. The airlines I have worked for ...

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by VMCA787
Sat Nov 14, 2020 7:42 am
Forum: Technical/Operations
Topic: How risky is the airspace around the DMZ being so close to ICN/GMP?
Replies: 5
Views: 1750

Re: How risky is the airspace around the DMZ being so close to ICN/GMP?

I first started flying in that area in 1978 with the USAF and have continued until my retirement a few years ago. To be honest, it's not a big deal. The real area to be concerned about is overflying the "Blue House" which is the ROK equivalent of the US's White House. Way back in prehistor...

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by VMCA787
Thu Nov 12, 2020 6:03 pm
Forum: Technical/Operations
Topic: Why do aircrews stay in cities and not near the airport?
Replies: 80
Views: 6918

Re: Why do aircrews stay in cities and not near the airport?

India has its exciting moments, but it is also where I had by far the best overnight accommodations of my career. Ironically, after doing hotel work for three different airlines, the hotels in India are among the most expensive hotels in the world! We stayed in the Taj group of hotels in most of th...

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by VMCA787
Wed Nov 11, 2020 4:33 pm
Forum: Non-Aviation
Topic: Big Surprise
Replies: 12
Views: 1205

Re: Big Surprise

Thanks for all the feedback. I did speak to the hospital about another test. However, there is a false positive and a false negative. Having a false positive with no symptoms won't change a thing. The PCR test is extremely accurate as it used DNA and RNA of the virus to confirm infection. The antige...

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by VMCA787
Wed Nov 11, 2020 12:42 pm
Forum: Non-Aviation
Topic: Big Surprise
Replies: 12
Views: 1205

Re: Big Surprise

casinterest wrote:
I would say it was your daughter, but also maybe, just maybe, you had a false positive?


No, she had it in the first round and we haven't seen her in several months. She lives in the US and we're in Spain!! Will see them at Christmas though. Everyone is coming here.

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by VMCA787
Wed Nov 11, 2020 10:30 am
Forum: Non-Aviation
Topic: Big Surprise
Replies: 12
Views: 1205

Big Surprise

Got the surprise of my life on Monday afternoon. I was supposed to have surgery on my left hand to replace the large knuckle on my left ring and middle finger. Arthritis is gradually taking over and this will help with the pain and the other two fingers have replacement joints too. But, part of the ...

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by VMCA787
Tue Nov 10, 2020 11:10 am
Forum: Technical/Operations
Topic: Why do aircrews stay in cities and not near the airport?
Replies: 80
Views: 6918

Re: Why do aircrews stay in cities and not near the airport?

I did volunteer work when I worked for a 121 carrier and again when I worked for an Asian carrier. Surprisingly, the methodology of hotel assignments was virtually the same and the "must-haves" were almost identical. The basic determining factors are the length of the layover. If the layov...

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by VMCA787
Mon Nov 09, 2020 9:55 pm
Forum: Travel, Polls & Preferences
Topic: Could SQ add YVR/YYZ-SIN?
Replies: 2
Views: 747

Re: Could SQ add YVR/YYZ-SIN?

On the ULR 359, the FWD cargo compartment is not installed. The door is there but there is no cargo handling system or anything else.

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by VMCA787
Sun Nov 08, 2020 8:41 pm
Forum: Technical/Operations
Topic: Sim training for one pilot flying - emergency
Replies: 3
Views: 981

Re: Sim training for one pilot flying - emergency

Believe it or not, it is. It is also given on some proficiency checks and recurrent training. As an evaluator, I tended to avoid that scenario in the sim as it takes quite a bit of time to bring to a logical conclusion. It isn't really fair to the remaining pilot to use the position button to slew h...

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by VMCA787
Thu Nov 05, 2020 7:38 pm
Forum: Military Aviation & Space Flight
Topic: Swing-wing aircraft - why the swing away?
Replies: 23
Views: 2702

Re: Swing-wing aircraft - why the swing away?

I would say there wasn't a specific advance but more a realization that the increased weight to allow the swing-wing isn't worth the hit in payload. That coupled with the emphasis on low observables, has led to more emphasis on designing the aircraft to minimize reflectivity. The high speed "da...

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by VMCA787
Tue Nov 03, 2020 1:52 pm
Forum: Civil Aviation
Topic: P2F Conversion Costs
Replies: 110
Views: 12468

Re: P2F Conversion Costs

True, but it is still an expensive proposition.

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by VMCA787
Tue Nov 03, 2020 9:11 am
Forum: Civil Aviation
Topic: P2F Conversion Costs
Replies: 110
Views: 12468

Re: P2F Conversion Costs

Just to put things into perspective, most aircraft that are converted will most likely need a very expensive C/D check.

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by VMCA787
Mon Nov 02, 2020 5:53 pm
Forum: Military Aviation & Space Flight
Topic: USAF VIP pilots
Replies: 7
Views: 1584

Re: USAF VIP pilots

Had a good friend of mine who went to the 89th to fly under Regan. Flew the VC-137 until the 747 replaced it. Flew under Regan, Bush and Clinton. Said Clinton had the best music and food and Bush I was the friendliest. Retired from the USAF and went to work for CX under their ASL fiasco. He was one ...

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by VMCA787
Sun Nov 01, 2020 7:45 pm
Forum: Technical/Operations
Topic: Landing Wheel Brake Activation
Replies: 30
Views: 2036

Re: Landing Wheel Brake Activation

RTO provides max braking with 3000psi applied to the brakes. While MAX provides a rate of deceleration. RTO is more braking than the MAX function.

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by VMCA787
Sun Nov 01, 2020 11:52 am
Forum: Civil Aviation
Topic: Delta pilot sentenced for nearly flying under the influence
Replies: 58
Views: 10487

Re: Delta pilot sentenced for nearly flying under the influence

Ok, the third time is the charm. The reason I have come back to the "single point in time" is when the HIMS program was initially, there was a desire by the company and unions to allow the employee a way to seek help without repercussions even when reporting for work. By defining the point...

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by VMCA787
Sat Oct 31, 2020 11:08 am
Forum: Technical/Operations
Topic: 787 System Question
Replies: 15
Views: 2744

Re: 787 System Question

IIRC, the flaps and L/E devices are driven by the center hydraulic system. That system has two ACMPs (alternating current motor pumps) that operate on demand. The L & R systems have an EDP and elec pump to supplement the EDPs during high demand operations. The hydraulic system operates at 5000ps...

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by VMCA787
Sat Oct 31, 2020 10:51 am
Forum: Civil Aviation
Topic: Delta pilot sentenced for nearly flying under the influence
Replies: 58
Views: 10487

Re: Delta pilot sentenced for nearly flying under the influence

For me, "agreements" like this are where the airline industry needs to take a reality check and sort itself out. The start of the offence should be the point at which any of the pilot's actions could have an adverse effect on the flight. At the before start checklist, preflight planning h...

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by VMCA787
Fri Oct 30, 2020 9:19 pm
Forum: Non-Aviation
Topic: Political Position (Immigration)
Replies: 37
Views: 1360

Re: Political Position (Immigration)

I'll will make several points about it though. The current administration is trying to make it harder to legally immigrate to this country. Why do you think that is? Another point, when your countries foreign and domestic policy creates havoc in other parts of the world don't be so upset when someo...

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by VMCA787
Wed Oct 28, 2020 3:33 pm
Forum: Civil Aviation
Topic: Delta pilot sentenced for nearly flying under the influence
Replies: 58
Views: 10487

Re: Delta pilot sentenced for nearly flying under the influence

https://m.startribune.com/delta-pilot-sentenced-for-nearly-flying-plane-from-msp-while-under-influence-of-alcohol/572895711/ This punishment seems very lenient for the danger this action poses. I personally would like to see harsher penalties not only for the safety but the black eye this gives the...

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by VMCA787
Mon Oct 26, 2020 6:45 am
Forum: Civil Aviation
Topic: SIA to review fleet plan; future of A380 in limbo
Replies: 143
Views: 46842

Re: SIA to review fleet plan; future of A380 in limbo

andrew1996 wrote:
Wonder why SQ and other airlines that have domestic terminals


Here is what you wrote. Sure reads like you are stating SQ has a domestic terminal.

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by VMCA787
Mon Oct 26, 2020 6:39 am
Forum: Civil Aviation
Topic: SIA to review fleet plan; future of A380 in limbo
Replies: 143
Views: 46842

Re: SIA to review fleet plan; future of A380 in limbo

Wonder why SQ and other airlines that have domestic terminals not run these restaurants on a more regular basis for customer engagement and some very marginal cash flow. Also although expensive this may be the cheapest way for many to experience buisness class seat and service for a few hours Obvio...

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by VMCA787
Wed Oct 21, 2020 9:03 am
Forum: Technical/Operations
Topic: Flight sim market, FFS and fixed
Replies: 35
Views: 4582

Re: Flight sim market, FFS and fixed

1) I think your staffing levels are off for AA and the rest of your staffing examples. You have 7 crews/airframe. That is a little high. 5-6 is generally the norm for domestic operations. Got a reference for that? Try AA/DL/UA number of pilots divided by mainline aircraft as of 12/31/2019 in the an...

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by VMCA787
Wed Oct 21, 2020 3:02 am
Forum: Technical/Operations
Topic: Flight sim market, FFS and fixed
Replies: 35
Views: 4582

Re: Flight sim market, FFS and fixed

You need to also figure out how many of those pilots are out on long term sick or not otherwise available to fly. I think you would be surprised at the numbers. Also, after doing work for ALPA for 20 years and working for a 121 carrier for 20 years I think you will find depending on the cap flown an...

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by VMCA787
Tue Oct 20, 2020 8:33 am
Forum: Technical/Operations
Topic: Flight sim market, FFS and fixed
Replies: 35
Views: 4582

Re: Flight sim market, FFS and fixed

@Lightsaber, out of interest, how many A320ceo/neo (I presume the ceo sim may be used for the neo) and 737NG FFSs are out there? Have the lack of FFSs hampered any other aircraft type before? Is there a precedent for this assumption? What is the typical number of FFSs per 100 or 1000 aircraft for c...

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by VMCA787
Mon Oct 19, 2020 2:20 pm
Forum: Technical/Operations
Topic: Concorde - Take-Off and Landing
Replies: 7
Views: 2074

Re: Concorde - Take-Off and Landing

I also understand that aircraft, when they land, - in the "flare", dump lift through the use of spoilers on touchdown. Just want to make sure you understand the landing phase. In the flare, the spoilers are not used. The landing flare is actually accomplished by a reduction in power (thru...

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