Search found 98 matches

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by gtae07
Fri Jul 28, 2023 11:19 am
Forum: Military Aviation & Space Flight
Topic: Catalina II Flying Boat
Replies: 48
Views: 4334

Re: Catalina II Flying Boat

If anything ever really comes of it (and I don't think anything will) I suspect it will at best resemble a Catalina in size and configuration, but be an all-new airframe design. Unfortunately, as much as I love the old Catalina I don't see demand sufficient to justify bringing another new amphibian ...

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by gtae07
Thu Jul 13, 2023 12:10 am
Forum: Technical/Operations
Topic: Is there any chance to become a pilot if I had a disorder
Replies: 9
Views: 2701

Re: Is there any chance to become a pilot if I had a disorder

By all means, find a good AME who will work hard with you and for you. But don't do the formal application "for real" until you are as sure as you can be that you will pass, because a denial will screw you. It's far better to not apply at all than to be denied. Note that gliders do not req...

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by gtae07
Sun Jun 18, 2023 11:53 am
Forum: Technical/Operations
Topic: Engineering vs flying professionally
Replies: 20
Views: 2995

Re: Engineering vs flying professionally

For whatever it's worth... my dad retired a couple years ago after 29 years flying for a US major. When I was growing up I had expressed interest in flying professionally (military to civil) though I always knew I'd study engineering in college. Dad's advice was "don't fly for a living like me....

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by gtae07
Thu May 25, 2023 8:59 pm
Forum: Technical/Operations
Topic: Airspace Class Demotions
Replies: 17
Views: 2340

Re: Airspace Class Demotions

Any known airports/areas that received a demotion? I imagine that one-time that many class Ds went to part time that some were outright cut. My hunch would be many in the Midwest with shrinking populations. Other than towers closing completely (which would result in Class D becoming Class E or G) I...

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by gtae07
Sat Feb 11, 2023 9:21 pm
Forum: Technical/Operations
Topic: Southwest to Halve Flying Time Needed for Prospective Pilots
Replies: 90
Views: 11059

Re: Southwest to Halve Flying Time Needed for Prospective Pilots

For what it's worth from someone who could have gone that path and didn't... when I was much younger, I wanted to follow my dad--start in the military and move to the airlines after a while. One would have thought I'd be a natural fit. In high school, as I was close to graduating, I talked some to D...

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by gtae07
Fri Sep 30, 2022 11:34 pm
Forum: Technical/Operations
Topic: FAA approves Gami100UL for entire piston engine fleet
Replies: 39
Views: 6483

Re: FAA approves Gami100UL for entire piston engine fleet

Electronic controls for piston engines would probably also have to be held to the same certification standards that were originally written for FADECs on airliners (because the FAA already has rules for electronic engine controls and they are notorious for "one size fits all"). Divide horr...

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by gtae07
Sun May 29, 2022 6:54 pm
Forum: Civil Aviation
Topic: EU is banning import of Tetraethyllead (for Avgas 100LL) from 2025
Replies: 38
Views: 10972

Re: EU is banning import of Tetraethyllead (for Avgas 100LL) from 2025

Modern 4 and 6 cylinder auto engines are amazingly trouble free, long lived, and put out equally amazing amounts of power. They have been adapted for marine use which require high output for long periods. They have become increasing lighter and more compact, and relatively cheap. Yet none of them h...

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by gtae07
Mon May 02, 2022 12:37 pm
Forum: Technical/Operations
Topic: Aviation Business Ideas?
Replies: 3
Views: 1121

Re: Aviation Business Ideas?

There's something to be said for a regular job (even if 9 to 5 is a terrible schedule). Owning/running a business is a LOT of work, often with much longer hours and much more stress. Kudos to those who can pull off running a business of any kind--I want no part of it. I like being able to do my 40 a...

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by gtae07
Thu Apr 21, 2022 11:27 pm
Forum: Technical/Operations
Topic: Throttle levers on 4+ engined aircraft
Replies: 26
Views: 4585

Re: Throttle levers on 4+ engined aircraft

N1120A wrote:
It is still silly and rather pedantic to do the old throttle/power/thrust lever differentiation.

Agreed.

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by gtae07
Sun Apr 03, 2022 11:05 am
Forum: Technical/Operations
Topic: Metric vs Imperial in aircraft
Replies: 43
Views: 9753

Re: Metric vs Imperial in aircraft

Small inch threads like 1/8 are taken by pipe threads, and you don't want to add them to the mess. Having NPT 1/4 and 1/4-20 as totally different things is good enough to make things messy. Pipe thread (NPT) has nothing to do with standard UN (Unified National) threads like 1/4-20. UN thread is bas...

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by gtae07
Sun Mar 13, 2022 12:49 pm
Forum: Technical/Operations
Topic: Metric vs Imperial in aircraft
Replies: 43
Views: 9753

Re: Metric vs Imperial in aircraft

It’s like, everything else equal, counting 0.9, 2.5, PI, 5.5, 7.7, 9.3, 11.5 instead of 1-10 and insisting it is a completely equal, practical alternative to regular counting of how many eggs you have left in the fridge. That's a poor analogy, not least of which because eggs are countable items, no...

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by gtae07
Sun Mar 13, 2022 10:49 am
Forum: Technical/Operations
Topic: Metric vs Imperial in aircraft
Replies: 43
Views: 9753

Re: Metric vs Imperial in aircraft

I was an AE major, too. Our professors used both--one problem would be in metric, the other in US units. I like that approach; keeps you fluent in both. Except orbital mechanics; that's the only place in the AE school that was all-metric. I now work at a well-known aircraft OEM. Everything is in US/...

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by gtae07
Mon Jan 24, 2022 10:05 pm
Forum: Civil Aviation
Topic: Small GA aircraft made in 1947 onwards how are they still flying?
Replies: 29
Views: 5873

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

Copy all what you said with electric cars. Apart that we did not figure out how to produce all that electricity, end point distribution will be an issue. Just think to all this blocks in old cities, with hundreds of aparments without their own garage or park place. BTW, why aircraft engines need 10...

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by gtae07
Mon May 17, 2021 1:14 pm
Forum: Technical/Operations
Topic: A321XLR’s rear fuel tank demands special fire-protection conditions
Replies: 224
Views: 54798

Re: A321XLR’s rear fuel tank demands special fire-protection conditions

Asking for comments from the industry on special conditions is SOP for both EASA and the FAA. And pretty much the only people with sufficient expertise to respond other than other regulators will be the competitors of the people asking for the special conditions, it will not be malicious, it's not ...

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by gtae07
Thu Mar 25, 2021 1:05 am
Forum: Technical/Operations
Topic: Flying an unmodified, original 747-100 in 2021
Replies: 26
Views: 9443

Re: Flying an unmodified, original 747-100 in 2021

Looks like you are correct. I was partially correct. CFR 121.358 requires an airborne windshear warning system on all turbine-powered aircraft, which I interpreted to mean also requires PWS. However, I consulted with someone else who told me that technically speaking you can comply with only a Reac...

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by gtae07
Wed Mar 10, 2021 5:13 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2021
Replies: 482
Views: 77073

Re: SpaceX - Tests, Launches, Developments - 2021

A friend of mine has always been annoyed at the perception people have of engineers. He terms himself a "Bluecollar Engineer" to make it clear to people that there is hard dirty work involved. Good engineering is not just "design on a computer" (though there are many engineers l...

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by gtae07
Tue Mar 09, 2021 12:55 pm
Forum: Military Aviation & Space Flight
Topic: KC-10A retirement
Replies: 30
Views: 7966

Re: KC-10A retirement

When I was King for a short time I started running my program just like 747Classic stated. We didn't do "just in time" because we aren't Ford, making trucks. Program ran extremely well, met the needs of the end user and was within budget. At first people's head's exploded at the thought o...

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by gtae07
Tue Feb 11, 2020 11:46 am
Forum: Technical/Operations
Topic: Worth it being a pilot?
Replies: 30
Views: 4751

Re: Worth it being a pilot?

Yikes. My generation (Gen Z) will never be able to pay 100k-900k for a single engine piston aircraft compared to previous generations having reduced costs when it comes to COL. It is the reason why most of the time the only young people in GA are only interested in being a commercial pilot rather t...

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by gtae07
Wed Jan 29, 2020 12:57 am
Forum: Technical/Operations
Topic: Flap & spoiler angle to wing sweep on current jet liners.
Replies: 8
Views: 1419

Re: Flap & spoiler angle to wing sweep on current jet liners.

The Gulfstream’s flaps extend on the chord line, the Global’s extend normal to airflow. One’s simpler, the other might be a touch better aerodynamically. But, the G650 wing has 28% lower wing loading to compensate for its simpler system. GF Not quite normal to the chord... It starts out that way bu...

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by gtae07
Mon Jan 27, 2020 1:09 pm
Forum: Technical/Operations
Topic: Worth it being a pilot?
Replies: 30
Views: 4751

Re: Worth it being a pilot?

Do yourself a favor: study hard, find a good career in a future-proof field and save some money to fly GA. That's where the fun is anyway, not looking at a seemingly paused EFIS screen for hours at the time in the middle of the night while struggling to stay awake. My dad (captain at US major, clos...

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by gtae07
Thu Jan 09, 2020 2:11 pm
Forum: Technical/Operations
Topic: Question for you commercial pilots!
Replies: 14
Views: 3646

Re: Question for you commercial pilots!

I grew up in a major hub and went to high school with countless kids of pilots. It is completely possible to have a normal family as an airline pilot especially towards the latter stages of the career. The early regional days are tough so I have heard. My dad got out of the Navy and on with a US ma...

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by gtae07
Thu Nov 21, 2019 8:15 pm
Forum: Technical/Operations
Topic: Vertical Integration In The Aerospace Industry
Replies: 10
Views: 1693

Re: Vertical Integration In The Aerospace Industry

[quote="Revelation"In aerospace applications it seems vendors find ways to claim "generic" actuators and motors aren't really generic and charge big markups.[/quote] Oh, it's not just actuators and motors. All kinds of commercial off-the-shelf items get a new nameplate, some fanc...

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by gtae07
Thu Oct 17, 2019 11:28 pm
Forum: Aviation Hobby
Topic: Which Plane Would You Buy?
Replies: 68
Views: 17061

Re: Which Plane Would You Buy?

Don't overlook homebuilding. I'm building an RV-7. Something like an Aircam would be nice as a summer flier second airplane, and (more realistically) maybe a partnership on an RV-10 or a Velocity. I won't touch certified airplanes with a ten-foot pole. If someone else was paying all the bills... an ...

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by gtae07
Thu Oct 17, 2019 11:22 pm
Forum: Technical/Operations
Topic: Military VS Commercial VS Ag Flying
Replies: 47
Views: 10765

Re: Military VS Commercial VS Ag Flying

Ok. Here's what's going on. I know I want to be a pilot, but in what field? I have to make a living. So my 3 choices would be either flying for the US Marine Corps in either CH-53Es or F-35s, Hawaiian Airlines 717s, or flying cropdusting /firefighting ops in an AT-802. The 3rd is really just someth...

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by gtae07
Mon Jul 22, 2019 1:26 am
Forum: Technical/Operations
Topic: Business jets - what is the difference in design guidelines or regulations in the numbers of exit doors?
Replies: 5
Views: 2735

Re: Business jets - what is the difference in design guidelines or regulations in the numbers of exit doors?

The Gulfsteam has a lot of grandfathering on their exits. The Falcon and Challenger / Global are built to more modern standard with the main and emergency exit. The baggage for doesn’t count as an exit. The new Gulfstreams with square-ish window exits were able to show an Equivalent Level of Safety...

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by gtae07
Wed Jan 16, 2019 2:02 am
Forum: Technical/Operations
Topic: Most expensive aircraft part
Replies: 39
Views: 11074

Re: Most expensive aircraft part

Why exactly are EECs and IDGs so expensive? Is the the manufacturing requirements or the R&D costs or what? Yes. Plus certification costs (paperwork), liability, etc. But also, low unit volumes. An airliner with a production run of 1000 or so airframes may only have 3000-4000 or so of a given c...

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by gtae07
Tue Jan 08, 2019 3:16 am
Forum: Technical/Operations
Topic: Master's in Aviation Management - is Embry Riddle a good choice?
Replies: 12
Views: 2405

Re: Master's in Aviation Management - is Embry Riddle a good choice?

I'm an engineer for an OEM (transport-category jets). Did an MBA because I thought I wanted to be a department head/lead. By the time I got to my last semester of the MBA I realized I no longer wanted to do management but was too far in to quit. Only pursue a management degree after you've been in t...

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by gtae07
Tue Dec 18, 2018 2:21 am
Forum: Technical/Operations
Topic: Cessna 172 Wings
Replies: 33
Views: 10585

Re: Cessna 172 Wings

I know of one light airplane that sits a bit left wing low after the person flying it (not me!) landed a little hard and bent a gear leg up a bit.

Still going strong 15 years later...

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by gtae07
Thu Oct 25, 2018 9:46 am
Forum: Technical/Operations
Topic: Class 2 and 3 Medical Certificate Opportunities
Replies: 8
Views: 2684

Re: Class 2 and 3 Medical Certificate Opportunities

You can get your third class medical. You'll just have the restriction on your medical that you can't fly at night. I don't know about a second class. I've been aware of that for a while, kinda bothers me a little. Any idea if it will affect a cross-country rating? No such thing as a "cross co...

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by gtae07
Wed Oct 24, 2018 1:01 am
Forum: Technical/Operations
Topic: Class 2 and 3 Medical Certificate Opportunities
Replies: 8
Views: 2684

Re: Class 2 and 3 Medical Certificate Opportunities

I would recommend that you not formally go for your first medical until you are sure that you will pass. Talk to the AME ahead of time, if necessary; work with your GP, do whatever you need to do. But what you do not want is a denial, because that bars you from personal flying under Basicmed or Ligh...

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by gtae07
Mon Oct 15, 2018 9:09 am
Forum: Military Aviation & Space Flight
Topic: Belgian Gunsmith destroys an F-16
Replies: 19
Views: 5563

Re: Belgian Gunsmith destroys an F-16

I believe there are some tests of the arming circuitry that require "fooling" the interlocks.

However, it looks like someone forgot the four rules...

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by gtae07
Tue Sep 18, 2018 5:21 pm
Forum: Technical/Operations
Topic: What is the most economical GA aircraft??????
Replies: 10
Views: 3595

Re: What is the most economical GA aircraft??????

If you don't mind kitplanes, an RV-10 could be your ticket for 4 pax and gear. My quip to this thread is always "GA and economical don't belong in the same sentence." I fly the RV10 and can vouch that it is an amazing plane. About 150KIAS at 65% power, ~900' T/O roll at MTOW at 5 000' ele...

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by gtae07
Wed Sep 05, 2018 10:25 am
Forum: Technical/Operations
Topic: Which is cheapest vehicle engine which can used for making single seater aircraft?
Replies: 14
Views: 2047

Re: Which is cheapest vehicle engine which can used for making single seater aircraft?

I second RetiredWeasel's advise, join the EAA. Generally speaking, application of automotive powerplants in aviation have not worked very well. Aircraft powerplant requirements are very different from those of an automobile, thus their design requirements differ. Automobile engines don't normally s...

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by gtae07
Wed Aug 22, 2018 10:44 am
Forum: Technical/Operations
Topic: I can't be a pilot.
Replies: 40
Views: 7916

Re: I can't be a pilot.

Sorry to hear about that... but as MaxQ puts it, all hope is not lost. A career in aviation is still certainly possible (engineering, maintenance, etc.) and even though the FAA will probably never sign off on a medical for you, there are a couple of options still open to fly. Flying with another pil...

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by gtae07
Thu Aug 16, 2018 12:01 am
Forum: Technical/Operations
Topic: Identify horizontal stabilizer
Replies: 6
Views: 1305

Re: Identify horizontal stabilizer

Varsity1 wrote:
It's a gulfstream. Either a V or a 550.

Agreed. The VG's and the presence of a trim tab are the giveaways.

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by gtae07
Fri Aug 03, 2018 11:08 am
Forum: Technical/Operations
Topic: Radom on 777F
Replies: 31
Views: 3493

Re: Radom on 777F

It is a synthetic vision device. Fedex is working with the FAA trying to develop a Synthetic Vision approach. Has been ongoing for a couple of years. Nitpick: this is an Enhanced Vision System. It's taking in real images from outside the aircraft. Synthetic Vision is a computer-generated display ba...

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by gtae07
Thu Aug 02, 2018 9:59 am
Forum: Technical/Operations
Topic: A&P certification/license for Engineers helpful?
Replies: 9
Views: 2350

Re: A&P certification/license for Engineers helpful?

Having an A&P would be a nice resume booster for an engineer, and might distinguish you enough to get certain positions (if the hiring manager values practical experience). However, it's certainly not a requirement. If I had to guess, at my employer (civil aircraft manufacturer) only 1% or so of...

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by gtae07
Wed Jun 20, 2018 1:11 am
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments
Replies: 2083
Views: 325587

Re: SpaceX - Tests, Launches, Developments

It is not only that; SpaceX generally prefers to design and build critical components in house rather than ask a contractor to do it unless the contractor comes in a lot cheaper than what they can build themselves. That way, they can control the cost and maintain control over the design elements of...

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by gtae07
Sun Jun 03, 2018 12:45 am
Forum: Technical/Operations
Topic: Moving Map GPS Unit in the Cockpit of a Gulfstream?
Replies: 4
Views: 1310

Re: Moving Map GPS Unit in the Conckpit inside of a Gulfstream?

Yes, that's just repeating the display from the cabin entertainment system. I'd bet that screen can display video from external cameras etc. and it's there (officially, at least) to aid the pilots by displaying such video. That it can tie into the cabin may well be something you aren't supposed to d...

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by gtae07
Wed May 09, 2018 1:02 am
Forum: Technical/Operations
Topic: Maneuvering Speed
Replies: 7
Views: 1774

Re: Maneuvering Speed

There's also the misconception that Va means "the speed at which you can do anything with the controls and not hurt the airplane". That is false. It's possible (as AA587 highlighted) to break parts of your airplane with full (and especially alternating) inputs well below Va. If I'm doing m...

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by gtae07
Tue May 08, 2018 10:20 am
Forum: Aviation Hobby
Topic: Negative AoA
Replies: 3
Views: 2261

Re: Negative AoA

It's possible. Cambered wings (as on a Cirrus and most aircraft) will generate some lift at zero AOA. You actually have to go to negative AOA to get zero lift. Throwing out flaps accentuates that (it increases camber). But you also need to look at the incidence of the wing--that is, the angle that t...

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by gtae07
Thu May 03, 2018 12:18 am
Forum: Technical/Operations
Topic: a330 swishing/hissing noise during taxi
Replies: 15
Views: 4667

Re: a330 swishing/hissing noise during taxi

It’s the brakes being applied and it is followed by another thump when they are released much like when an A320 thumps when brakes are applied and thumps twice when they are released. I’d say the noise comes from the hydraulic system. The 767 makes a very similar noise when it’s brakes are released...

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by gtae07
Thu May 03, 2018 12:14 am
Forum: Civil Aviation
Topic: Nuclear powered aircraft?
Replies: 50
Views: 5678

Re: Nuclear powered aircraft?

Not until nuclear fusion technology (the safest/harmless nuclear technology available) in a small and light package becomes feasible. Which is to say, maybe 100-200 years from now, if ever. They are still trying to nail down the basics of nuclear fusion. 100-200 years for fusion is a little pessimi...

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by gtae07
Wed May 02, 2018 10:06 am
Forum: Civil Aviation
Topic: Boeing to buy aerospace parts maker KLX
Replies: 23
Views: 3427

Re: Boeing to buy aerospace parts maker KLX

Last decade's hottest trend in the nation's top MBA programs: Return on Net Assets and Risk-Sharing. This decade's hottest trend in the nation's top MBA programs: Vertical Integration. To be fair, I like this trend better, but I wonder if we'll see it taken to similarly questionable extremes like t...

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by gtae07
Mon Apr 16, 2018 12:44 am
Forum: Technical/Operations
Topic: (Theoretical) re-engine of An-225
Replies: 29
Views: 5314

Re: (Theoretical) re-engine of An-225

You'd never make back the cost of the conversion. Why bother?

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by gtae07
Thu Apr 12, 2018 10:01 am
Forum: Technical/Operations
Topic: DC-10/MD-11 Main Gear Extension
Replies: 5
Views: 1501

Re: DC-10/MD-11 Main Gear Extension

There may be restrictors in the gear down circuit to ensure the gear is deploying slower. With retraction you want the gear coming up quickly to reduce drag; extending that's not as important and your actuators may have a better mechanical advantage at full down. You don't want to slam the gear into...

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by gtae07
Sun Mar 25, 2018 12:46 am
Forum: Technical/Operations
Topic: Plane Flying with Landing Gear Down
Replies: 22
Views: 4531

Re: Plane Flying with Landing Gear Down

We actually get a fair number of requests from operators wanting to ferry their business jets gear down. Usually what happens is they have some kind of gear-related maintenance issue, and being at a small airport they don't have jacks or maintenance facilities to do the ops checks (like gear swings...

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by gtae07
Wed Mar 21, 2018 12:34 am
Forum: Technical/Operations
Topic: Plane Flying with Landing Gear Down
Replies: 22
Views: 4531

Re: Plane Flying with Landing Gear Down

We actually get a fair number of requests from operators wanting to ferry their business jets gear down. Usually what happens is they have some kind of gear-related maintenance issue, and being at a small airport they don't have jacks or maintenance facilities to do the ops checks (like gear swings)...

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by gtae07
Sun Feb 04, 2018 12:49 am
Forum: Technical/Operations
Topic: What is the oldest aircraft that still has the original manufacturer's engineering support?
Replies: 10
Views: 1685

Re: What is the oldest aircraft that still has the original manufacturer's engineering support?

We'll still support airplanes that were made in the late 60s, if the operators call in for support. I've worked a couple of them in the last few years. But generally we find that those operators aren't going to contact us in most cases--our support is expensive and anyone operating one of those airp...

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by gtae07
Thu Feb 01, 2018 1:22 am
Forum: Technical/Operations
Topic: Fuselage or Airframe
Replies: 3
Views: 2002

Re: Fuselage or Airframe

Airframe is American vocabulary while fuselage is European, both mean the same thing. Ah, no. Fuselage is very specific and means the same thing in Europe and the US (and AFAIK, the rest of the world). More specifically, when I hear the term "airframe" or see it used at work (aircraft man...

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