Search found 260 matches

by Minuteman
Mon Sep 03, 2007 1:04 am
Forum: Civil Aviation
Topic: American's Lack Of In-flight Service, Or Laziness
Replies: 102
Views: 11600

RE: American's Lack Of In-flight Service, Or Laziness

<TABLE BORDER=0 ALIGN=CENTER WIDTH=95% style="border-top: 1pt #28455E solid;border-right: 1pt #1B2E3F solid;border-bottom: 1pt #1B2E3F solid;border-left: 1pt #28455E solid;table-layout:fixed;border-spacing:0;padding:0;border-collapse: collapse;" bgcolor=#1E3951><tr><td><font size=2 face="ARIAL, Helv...

Jump to post
by Minuteman
Sat Jun 30, 2007 8:00 am
Forum: Civil Aviation
Topic: I Saw A WN 737-300 W/ Winglets. Can Any1 Confirm?
Replies: 15
Views: 6977

RE: I Saw A WN 737-300 W/ Winglets. Can Any1 Confirm?

SWA's 500th (a 737-300 from Air Sahara) will have winglets.

Jump to post
by Minuteman
Sun Feb 18, 2007 7:04 am
Forum: Civil Aviation
Topic: First Picture Of The PW6000 Powered LAN A318
Replies: 35
Views: 16143

RE: First Picture Of The PW6000 Powered LAN A318

Are those brake fans on the mains? It seems unusual that a baby bus would need them, especially when it has thrust reversers. <br><center><font color="#EEEEEE" size="1" face="ARIAL, Helvetica, Geneva"><a href="/open.file/1037012/L/" target="_blank">View Large</a> <a href="/open.file/1037012/M/" targ...

Jump to post
by Minuteman
Wed Jan 24, 2007 5:20 am
Forum: Civil Aviation
Topic: CO One Engine Taxi In 737/8 At Kewr?
Replies: 26
Views: 7719

RE: CO One Engine Taxi In 737/8 At Kewr?

Single-Engine (on a twin) Taxi is almost certainly not limited to flights where you believe there is a tight fuel margin, but is used throughout the fleet as a general fuel-savings measure. If true, it is unusual to start the "# 1 right before lineup and takeoff." Ideally, there would be at least a ...

Jump to post
by Minuteman
Thu Jan 18, 2007 4:47 am
Forum: Civil Aviation
Topic: Status Of DAL Love Field And Dart Rail?
Replies: 39
Views: 6871

RE: Status Of DAL Love Field And Dart Rail?

<TABLE BORDER=0 ALIGN=CENTER WIDTH=95% style="border-top: 1pt #28455E solid;border-right: 1pt #1B2E3F solid;border-bottom: 1pt #1B2E3F solid;border-left: 1pt #28455E solid;table-layout:fixed;border-spacing:0;padding:0;border-collapse: collapse;" bgcolor=#1E3951><tr><td><font size=2 face="ARIAL, Helv...

Jump to post
by Minuteman
Thu Nov 30, 2006 11:21 am
Forum: Civil Aviation
Topic: Fusdelage Fins on DC9 series
Replies: 18
Views: 4337

Fusdelage Fins on DC9 series

They are vortex generators. At high angles of attack they energize flow over the wings and tail surfaces with a vortex that mixes faster-moving freestream air with the potentailly stalled flow over the wing. Adding some of the freestream momentum to the airmass over the wing keeps the flow attached ...

Jump to post
by Minuteman
Fri May 26, 2006 3:30 am
Forum: Technical/Operations
Topic: Flight Data Recorder Black Box & Weather Radar
Replies: 4
Views: 3945

RE: Flight Data Recorder Black Box & Weather Radar

For the most part, no weather information is recorded on the FDR. There are usually parameters for ambient temperature, ice detectors, wind speed and direction (as sensed by the aircraft), windshear caution and warning alerts, and a newer <acronym title="Royal Jordanian">RJ</acronym> also now record...

Jump to post
by Minuteman
Wed Dec 08, 2004 2:58 pm
Forum: Technical/Operations
Topic: How Planes Check Their Own Tire Pressure
Replies: 21
Views: 4676

RE: How Planes Check Their Own Tire Pressure

I should mention that many cars don't directly measure the pressure in a tire. Instead they compare the rotational speeds, so if one wheel is getting low, it spins faster (sensors may already be there for anti-lock/traction control). The trouble with this is if you're driving on a rough or gravel ro...

Jump to post
by Minuteman
Mon Jun 28, 2004 12:26 pm
Forum: Technical/Operations
Topic: Brake Fans
Replies: 13
Views: 7940

RE: Brake Fans

Where are the fans usually placed and what do they look like? (I'll give a shiny quarter to anyone who find a picture in the database  <img src="/discussions/graphics/wink.gif" ALT="Big grin"> ) I would guess the cooling has more to do with the rotors than the pads, although that may reveal my ...

Jump to post
by Minuteman
Tue Feb 24, 2004 2:54 pm
Forum: Technical/Operations
Topic: Who Makes This GPS?
Replies: 14
Views: 2927

RE: Who Makes This GPS?

Otherwise it'd be "Present Postion"?

Jump to post
by Minuteman
Sun Jan 04, 2004 1:58 pm
Forum: Civil Aviation
Topic: Flash Air Crash: Another 737 Mystery?
Replies: 61
Views: 12864

RE: Flash Air Crash: Another 737 Mystery?

<b>France Wants Manslaughter Inquiry over Egyptian Jet Crash</b> French Justice Minister Dominique Perben has approached prosecutors with a demand for a preliminary inquiry for manslaughter after a chartered Boeing 737 crashed into the Red Sea early Saturday shortly after takeoff from the Egyptian r...

Jump to post
by Minuteman
Tue Sep 09, 2003 10:06 am
Forum: Technical/Operations
Topic: Ground / Flight Switch
Replies: 10
Views: 6176

RE: Ground / Flight Switch

Its not all microswitches. The 777 also has strain gauges on the gear.

Jump to post
by Minuteman
Mon Jul 14, 2003 2:00 pm
Forum: Technical/Operations
Topic: Unbelievable Case Of Flight School Negligence
Replies: 20
Views: 4082

RE: Unbelievable Case Of Flight School Negligence

<a href="http://ecfrback.access.gpo.gov/otcgi/cfr/otfilter.cgi?DB=1&SORTBY=%42%49%42%53%52%54&ACTION=View&QUERY=%31%34&RGN=%42%54%49&OP=and&QUERY=%73%70%65%63%69%61%6C%20%76%66%72&OP=and&QUERY=&OP=and&QUERY=&OP=and&SUBSET=SUBSET&FROM=1&SIZE=10&ITEM=2"><acronym title="Fargo - Hector International (FA...

Jump to post
by Minuteman
Sun Jun 08, 2003 1:19 pm
Forum: Civil Aviation
Topic: Floatplane Misses The Lake!
Replies: 12
Views: 2612

RE: Floatplane Misses The Lake!

So...uhhh...how're they going to get it *out* of there? A helicopter and straps? A hacksaw and flatbed?

Jump to post
by Minuteman
Mon Jun 02, 2003 10:07 am
Forum: Technical/Operations
Topic: O2 For 10% Of Pax- Why?
Replies: 17
Views: 4367

RE: O2 For 10% Of Pax- Why?

Weird... 121.327 is in reference to reciprocating engine aircraft, but 121.329 has the same requirements for turbine engine aircraft. The third part of the both rules states: (3) For flights at cabin pressure altitudes above 15,000 feet, enough oxygen for each passenger carried during the entire fli...

Jump to post
by Minuteman
Sat May 17, 2003 11:50 am
Forum: Technical/Operations
Topic: Can Bigger Turbofans Create More Noise?
Replies: 8
Views: 3060

RE: Can Bigger Turbofans Create More Noise?

Short answer: yes, a more powerful engine will be louder. The answer lies in what's known as the "Sound Pressure Level" (SPL) and is expressed in decibels. SPL establishes the relative intensity of a sound given the power and distance of a noisemaker. With an omnidirectional acoustic source the equa...

Jump to post
by Minuteman
Mon May 12, 2003 11:16 am
Forum: Technical/Operations
Topic: Boeing 777 Technology.....
Replies: 17
Views: 7383

RE: Boeing 777 Technology.....

I can't claim to be overly familiar with either the 777 or A340 systems, but the 777 seems to have a lot more "F's" than "S's" and C's" ... more Functions performed by redundant central AIMS boxes than by dedicated standalone Systems or Computers. I recall Flight Management and Aircraft Condition Mo...

Jump to post
by Minuteman
Mon Apr 28, 2003 10:23 pm
Forum: Technical/Operations
Topic: Assumed Temperature And Thrust Adjustment
Replies: 7
Views: 14457

RE: Assumed Temperature And Thrust Adjustment

Sorry for being a royal blockhead in my previous post. You are correct that if you want a thrust reduction (N1 reduction) the denominator generally needs to be greater than one. Also, yes, the temperatures must be on an absolute scale. The equation <i>should</i> be: <i>Reduced N1 = Full N1 x Square ...

Jump to post
by Minuteman
Fri Apr 25, 2003 1:11 pm
Forum: Technical/Operations
Topic: Assumed Temperature And Thrust Adjustment
Replies: 7
Views: 14457

Assumed Temperature And Thrust Adjustment

There is a rule-of-thumb method for calculating a Reduced Thrust N1 with the Assumed Temperature method: <i>Reduced N1 = Full N1 x Square route of (Ambient temp / Assumed temp)</i> I was wondering if anyone could shed some light on the origin of this relationship and if there is an equivalent calcul...

Jump to post
by Minuteman
Fri Apr 25, 2003 12:52 pm
Forum: Technical/Operations
Topic: Indian Airlines A320's Main Gear Have 4 Tires
Replies: 16
Views: 9746

RE: Indian Airlines A320's Main Gear Have 4 Tires

I don't mean to discourage curiosity, just to cite previous Airliners.net threads about this that I feel were informative. <b>·</b> <a href="http://www.airliners.net/discussions/tech_ops/read.main/5757/">A320 Undercarraige</a> <b>·</b> <a href="http://www.airliners.net/discussions/tech_ops/read.main...

Jump to post
by Minuteman
Wed Apr 23, 2003 11:39 am
Forum: Civil Aviation
Topic: Opposition To 7E7 Within Boeing
Replies: 51
Views: 4417

RE: Opposition To 7E7 Within Boeing

That's kind of interesting ... if Boeing CAG was to go the way of a consortium (more officially than it already is).

Whom could it be comprised of?

Jump to post
by Minuteman
Sun Apr 13, 2003 7:28 am
Forum: Civil Aviation
Topic: What's Significant About This Airplane?
Replies: 10
Views: 2721

RE: What's Significant About This Airplane?

I had the same thought about it being in Airplane! According to AirNikon (same photographer), <a href="http://www.airliners.net/search/photo.search?regsearch=N6723&distinct_entry=true">N6723</a> was the one from Airplane! This photo indicates the lack of a dorsal <acronym title="Hapag-Lloyd (Germany...

Jump to post
by Minuteman
Tue Apr 01, 2003 12:24 pm
Forum: Civil Aviation
Topic: Meigs Field Destroyed
Replies: 183
Views: 21920

RE: Meigs Field Destroyed

Just tell me where to send my money to help keep Daley in court for the next ten years...not the city or the mayor's office, I mean Daley.

Jump to post
by Minuteman
Wed Mar 26, 2003 12:24 pm
Forum: Technical/Operations
Topic: Southwest Classic B737 Display Upgrades
Replies: 12
Views: 3329

RE: Southwest Classic B737 Display Upgrades

I mean this in only the most inquisitive sense, but why bother to replace a standardized, functional system?

The only gains I see are the a non-mechanical attitude indicator and an ND (a big plus, but proven to not be required).

Is a lack of these displays limiting the abilities of crews?

Jump to post
by Minuteman
Tue Feb 18, 2003 1:32 pm
Forum: Technical/Operations
Topic: Squawk Codes
Replies: 11
Views: 6448

RE: Squawk Codes

The answer to your question can be found in FAA Order 7110.65 "Air Traffic Control", section 5-2 "Beacon Systems" <a href="http://www2.faa.gov/atpubs/ATC/Chp5/atc0502.html" target=_blank>http://www2.faa.gov/atpubs/ATC/Chp5/atc0502.html</a> To list a few highlights (remember each digit is only a thre...

Jump to post
by Minuteman
Thu Feb 13, 2003 12:56 pm
Forum: Military Aviation & Space Flight
Topic: Lockheeed SR71 Inlets
Replies: 8
Views: 6146

RE: Lockheeed SR71 Inlets

I recommend Ben Rich's <a href=<a href="http://"http://www.twbookmark.com/books/42/0316743003/"" target="_blank">"http://www.twbookmark.com/books/42/0316743003/"</a>>Skunk Works</a>. The <acronym title="Swissair">SR</acronym>-71's inlet cones can move back and forth along the axis of the engines to ...

Jump to post
by Minuteman
Wed Feb 05, 2003 1:05 pm
Forum: Technical/Operations
Topic: Marker Beacons
Replies: 11
Views: 11558

RE: Marker Beacons

Back in the olden days, before Victor airways (based on VORs) you flew airways by following marker beacons.

As it happens, the ILS Inner Marker and the Airway marker beacons are both 3000 Hz. So, older beacon lights are A-O-M

Jump to post
by Minuteman
Tue Feb 04, 2003 11:17 am
Forum: Technical/Operations
Topic: Engine Nacelle Location
Replies: 9
Views: 4734

RE: Engine Nacelle Location

Its mostly a structural reason why wing-mounted engines are where they are. You wouldn't want the engine very far outboard. As you move the mass of the engine away from the wing root, the span-wise bending moments increase. This would require an unnecessarily stronger (and heavier) wing. So, you mov...

Jump to post
by Minuteman
Sun Feb 02, 2003 12:53 pm
Forum: Technical/Operations
Topic: Using A Portable Radio In An Airplane Without One
Replies: 10
Views: 6790

RE: Using A Portable Radio In An Airplane Without One

You don't need a radio operator's license for VFR or IFR (in the US), but you used to. As lifed from the FCC's website: "On October 26, 1996, the FCC released a Report and Order in WT Docket No. 96-82, FCC 96-421, eliminating the individual licensing requirement for all aircraft operating domestical...

Jump to post
by Minuteman
Tue Jan 28, 2003 2:11 pm
Forum: Technical/Operations
Topic: Avionics Site
Replies: 3
Views: 2177

RE: Avionics Site

There are some good interviews with developers of existing technology and explorations of new ideas in this magazine. There's a pretty comprehensive online archive too. http://www.avionicsmagazine.com

Jump to post
by Minuteman
Mon Jan 27, 2003 3:46 pm
Forum: Technical/Operations
Topic: An Aircraft Question Without A Correct Answer
Replies: 12
Views: 4298

RE: An Aircraft Question Without A Correct Answer

Must learn to not jump the gun when posting... Here's a link with a picture of the Ayres LM200 Loadmaster <a href="http://www.aeroworldnet.com/4th06197.htm" target=_blank>http://www.aeroworldnet.com/4th06197.htm</a> As for other aircraft with a single engine driving multiple propellers, there's the ...

Jump to post
by Minuteman
Mon Jan 27, 2003 3:29 pm
Forum: Technical/Operations
Topic: An Aircraft Question Without A Correct Answer
Replies: 12
Views: 4298

RE: An Aircraft Question Without A Correct Answer

Well, its all about the centerline thrust and under which CFR Part you're planning to operate. Probably not the best example, but I think the Bell tiltrotor has the ability to transfer power from one engine to both rotors (under abnormal circumstances and probably not at peak efficiencies). Also the...

Jump to post
by Minuteman
Mon Jan 27, 2003 1:02 am
Forum: Technical/Operations
Topic: What Flight Deck Is This?
Replies: 9
Views: 4835

RE: What Flight Deck Is This?

Examining the registration posted in the cockpit and hazarding a guess as to what it says (the second and third characters look like "C-"), I find that only Aeromexico's MD-83s and one MD-87 ever had reg nums like this.

Jump to post
by Minuteman
Sun Jan 26, 2003 10:47 pm
Forum: Civil Aviation
Topic: F/A Movie
Replies: 5
Views: 1564

RE: F/A Movie

"VIEW FROM THE TOP ...is a comedy about a young woman from meager beginnings, Academy Award® winner Gwyneth Paltrow ("Shakespeare in Love"), who has high hopes for the future. Donna dreams of becoming a first class international flight attendant and is willing to do whatever it takes to ensure that ...

Jump to post
by Minuteman
Sun Jan 26, 2003 11:47 am
Forum: Technical/Operations
Topic: New US Security Rules
Replies: 10
Views: 2851

RE: New US Security Rules

"<i>the fact that once your certificate is pulled, your only appeal is right back to the same agency that took it in the first place</i>" -- Nothing new there. This is absurd. Lets see 'em start talking about revoking drivers' licenses for the same reason and see how far they get. Does this mean tha...

Jump to post
by Minuteman
Sat Jan 25, 2003 11:10 am
Forum: Civil Aviation
Topic: DFW's Biggest Problem
Replies: 34
Views: 2609

RE: DFW's Biggest Problem

Actually, Boeingfan is correct. One of the main reasons the TRE or DART don't go directly to DFW is because the taxi and limousine services shot down the route. So now instead of hopping off the train at the airport, your best option is to take the train to a station just south of the airport and th...

Jump to post
by Minuteman
Thu Jan 09, 2003 5:09 am
Forum: Technical/Operations
Topic: A Question About Tcas?
Replies: 25
Views: 5223

RE: A Question About Tcas?

This might not be completely Tech/Ops, but I think this is one of the coolest things to come along for GA in a while. Its a Mode-S capable transponder from Garmin that will also offer traffic advisories if you have one of their moving map units as well. <a href="http://www.garmin.com/products/gtx330...

Jump to post
by Minuteman
Mon Oct 21, 2002 8:23 am
Forum: Site Related
Topic: A Public Apology
Replies: 38
Views: 2274

RE: A Public Apology

I agree with everyone above. I've never seen Jetguy's posts be irrelevant (I realize this is Tech/Ops), an advertisement, hostile, a copyright violation, or a repeat. His spelling is pretty good too! Aggressive moderation is one of the reasons I've refrained from becoming a paying participant and wi...

Jump to post
by Minuteman
Thu Oct 17, 2002 2:35 pm
Forum: Technical/Operations
Topic: Why No Winglets On The 717?
Replies: 28
Views: 7744

RE: Why No Winglets On The 717?

I agree that winglets are mostly a fad ... perhaps even on their way out as new designs incorporate raked wingtips instead.

But just to throw some fuel on the fire, the C-17 was designed from the start with winglets, which goes counter to the claim that they're an aerodynamic fix.

Jump to post
by Minuteman
Fri Sep 27, 2002 10:40 am
Forum: Technical/Operations
Topic: Airbus NAME: What's That X!
Replies: 9
Views: 2880

RE: Airbus NAME: What's That X!

Sure enough... its another engine code, thanks.

As for a list of detailed meanings, I was provided this page.

Jump to post
by Minuteman
Thu Sep 26, 2002 10:47 am
Forum: Technical/Operations
Topic: A Spinoff Of The PFT Thread.
Replies: 9
Views: 2380

RE: A Spinoff Of The PFT Thread.

If you look at pay rates in the ten largest US airlines as a function of time and extrapolate from there, a new regional hire should be getting about <b>$25k/year</b> on if you assume it takes three years to get to the mainline (that's using $33.2k for a new mainline hire, $86.7k in 5 years, and $13...

Jump to post
by Minuteman
Mon Sep 23, 2002 10:03 pm
Forum: Technical/Operations
Topic: Airbus NAME: What's That X!
Replies: 9
Views: 2880

RE: Airbus NAME: What's That X!

I might be wrong on this one, but I always thought the last three digits for Airbus were:

First Digit: series number ("100", "200")

Second Digit: Engine Manufacturer (1=CFM, 3=IAE)

Third Digit: Flight Control Software Revision Number

I'd appreciate it if someone could correct me on this.

Jump to post
by Minuteman
Mon Sep 16, 2002 2:01 pm
Forum: Technical/Operations
Topic: Aerospace Engineering Vs. Aerospace (for Major)
Replies: 15
Views: 7692

RE: Aerospace Engineering Vs. Aerospace (for Major)

If I read right, you're comparing Aerospace(/Aeronautical) Engineering to Aeronautical Science. Aero Engineering is where you spend four years learning lots of math and physics. If you're at a good school, you'll get a chance to chip in on some neat projects, play scientist in wind a tunnel and lear...

Jump to post
by Minuteman
Wed Jul 24, 2002 1:04 pm
Forum: Technical/Operations
Topic: Why Not Mini Turbines.....
Replies: 13
Views: 2689

RE: Why Not Mini Turbines.....

It boils down to specific fuel consumption and thrust per weight. (but I would still love to have a turboshaft GA plane). SHP for SHP, a reciprocating engine is a tea-sipper compared to most turboshaft engines. A Wright R-3350 (~3700 shp) does about 0.38 lb/shp-hr. A similarly-sized turboshaft, the ...

Jump to post
by Minuteman
Wed Jul 24, 2002 11:46 am
Forum: Technical/Operations
Topic: Rate Of Acceleration During Ground Roll For B747
Replies: 36
Views: 14864

RE: Rate Of Acceleration During Ground Roll For B747

Based on the indications I've seen from a longitudinally mounted accelerometer (body-axis), the initial acceleration on a 747 can be around 0.2 Gs to 0.25 Gs (4.4 MPH/sec to 5.5 MPH/sec as you say, 0.3 Gs on a very good day). The magnitude gradually decreases to about 80% of its peak value and then ...

Jump to post
by Minuteman
Wed Jul 10, 2002 12:11 pm
Forum: Military Aviation & Space Flight
Topic: AFO Cruise Speed M.92?!
Replies: 5
Views: 3086

RE: AFO Cruise Speed M.92?!

I'm not sure they're claiming Mach .92 is the <b><u>cruise</u></b> speed. I couldn't leave well-enough alone and worked the numbers: 630 mph ~= 548 kts and is 0.92 around 28,000 feet So figuring for an IAS in these conditions, I get 548 TAS = 370 KIAS which is on the high end of a reasonable VMO. In...

Jump to post
by Minuteman
Wed Jun 26, 2002 12:14 pm
Forum: Civil Aviation
Topic: Topless Flight Atnd's
Replies: 43
Views: 4480

RE: Topless Flight Atnd's

I guess they'd meet the flammability requirements and you'd definitely be able to distinguish them from passengers...

Jump to post
by Minuteman
Fri Jun 21, 2002 12:24 pm
Forum: Technical/Operations
Topic: The 727 That Fell From The Sky
Replies: 42
Views: 14650

RE: The 727 That Fell From The Sky

I did a pretty extensive search for keywords related to this story and in the end, I found what I was looking for on airliners.net <a href="http://www.airliners.net/discussions/tech_ops/read.main/38726/" target=_blank>http://www.airliners.net/discussions/tech_ops/read.main/38726/</a> that has a link...

Jump to post
by Minuteman
Mon May 13, 2002 9:29 am
Forum: Technical/Operations
Topic: United B767 Engines
Replies: 6
Views: 2967

RE: United B767 Engines

Back in the day, United Airlines and Pratt & Whitney (a division of United Technologies) were split from the same company, United Aircraft & Transport, which was formed from Boeing Airline & Transport, Pratt & Whitney, Chance Vought, Hamilton, Sikorsky and Standard Steel Propeller (circa 1929) <a hr...

Jump to post
by Minuteman
Mon Apr 29, 2002 11:40 am
Forum: Technical/Operations
Topic: 'vortex' On Top Of The Wing?
Replies: 11
Views: 4185

RE: 'vortex' On Top Of The Wing?

Just a follow-up on the good explanation from Jsuen... Back in the school days, we used shadowgraph and Schlieren visualization in the supersonic wind tunnel to highlight the variations in the densities of a flow. Basically, as the air gets compressed by a shockwave, the density changes and refracts...

Jump to post