Search found 1788 matches

by 411A
Mon Jan 14, 2002 11:08 am
Forum: Civil Aviation
Topic: The Fastest You Have Flown?
Replies: 33
Views: 2287

RE: The Fastest You Have Flown?

Operating an L1011-500, FUK-NRT, FL410, M.865, groundspeed 738 knots.....movin' right along.

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by 411A
Wed Jan 09, 2002 1:24 pm
Forum: Technical/Operations
Topic: Confusion Regarding T-Tail Deep Stall
Replies: 18
Views: 11153

RE: Confusion Regarding T-Tail Deep Stall

A good reason why stall/spin 'chutes are fitted to flight test aircraft.

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by 411A
Wed Jan 09, 2002 1:20 pm
Forum: Technical/Operations
Topic: Fuselage Warping And Stress?
Replies: 8
Views: 2036

RE: Fuselage Warping And Stress?

Ugh...well rather a lot at Lakehurst.

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by 411A
Tue Jan 08, 2002 4:14 pm
Forum: Technical/Operations
Topic: Ram Air Turbine:
Replies: 29
Views: 18147

RE: Ram Air Turbine:

Right on all accounts, 747Teach and, it is recommended to maintain at least 160 knots of final to assure proper RAT rpm. But, beware of icing. Also, if it were me, I would not use the BtoA PTU (on final) as the B system provides all the control you would need. During landing, the RAT will not provid...

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by 411A
Tue Jan 08, 2002 4:02 pm
Forum: Technical/Operations
Topic: Fuselage Warping And Stress?
Replies: 8
Views: 2036

RE: Fuselage Warping And Stress?

For those that have flown in the rear of a stretched DC-8 can look up the aisle and watch the fuselage twist a bit. Interesting sight indeed.

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by 411A
Tue Jan 08, 2002 12:09 pm
Forum: Civil Aviation
Topic: Tajikistan International L1011?
Replies: 3
Views: 1372

RE: Tajikistan International L1011?

The L1011's left a long time ago....the airline left a trail of unpaid bills and their former CEO went to jail in Canada last I heard. A very sorry tale.

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by 411A
Sun Jan 06, 2002 1:38 pm
Forum: Technical/Operations
Topic: Why No RPM Display For Big Jets?
Replies: 17
Views: 4502

RE: Why No RPM Display For Big Jets?

...and if we look back a few years, the Boeing 707's with RR Conway engines had only RPM to set power, no EPR gauges.
RPM is very important due to blade length and their propensity to rub, ie: blade creep.

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by 411A
Fri Jan 04, 2002 1:25 pm
Forum: Civil Aviation
Topic: Hajj Flights To Start From 16th
Replies: 16
Views: 3263

RE: Hajj Flights To Start From 16th

They travel from the JED airport to Mecca (and Medina) in chartered busses and are "housed" in tents (mostly).
Quite a sight.

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by 411A
Fri Jan 04, 2002 12:19 pm
Forum: Technical/Operations
Topic: DC-8s With "blowtorches"
Replies: 19
Views: 4235

RE: DC-8s With "blowtorches"

Well Minuteman, notice in your diagram that the mixer is "fitted" to the hot stream only, so that it mixes the hot stream with the bypass air for quiet(er) operation. And yes they are subject to continued stress, in fact I had one depart the number two engine on a B707-331 some years ago, while land...

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by 411A
Fri Jan 04, 2002 12:09 pm
Forum: Technical/Operations
Topic: What Are Those Holes For?
Replies: 10
Views: 3164

RE: What Are Those Holes For?

Gosh Whalepilot, you sound slightly pretentious.
So, if we understand you correctly, NO DC-8's have a/c packs?

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by 411A
Fri Jan 04, 2002 11:05 am
Forum: Technical/Operations
Topic: What Are Those Holes For?
Replies: 10
Views: 3164

RE: What Are Those Holes For?

Well Whalepilot, refer to Mr Spaceman's post and do a search...and all will be revealed, ie: turbocompressors AND cooling air for the heat exchangers.
And you say...no air conditioning packs?

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by 411A
Fri Jan 04, 2002 1:17 am
Forum: Technical/Operations
Topic: Deicing Engine Inflight
Replies: 17
Views: 2348

RE: Deicing Engine Inflight

Actually, propeller alcohol fluid deicing is still used on some models of light aircraft....and on the wing as well. The TKS system works quite well.
Jet engines use bleed air for anti-ice. However, it must be switched on in time otherwise it's DEICE time....with surprising results.

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by 411A
Fri Jan 04, 2002 1:06 am
Forum: Technical/Operations
Topic: DC-8s With "blowtorches"
Replies: 19
Views: 4235

RE: DC-8s With "blowtorches"

Ganymed--- On the early DC8's, yes they did increase fuel consumption, and their was a Douglas service bulletin to remove the reversers from some models of the DC8, because as you know, thrust reverse is not used in calculating field length requirements for FAA certification, unlike the UKCAA which ...

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by 411A
Thu Jan 03, 2002 4:39 pm
Forum: Technical/Operations
Topic: What Are Those Holes For?
Replies: 10
Views: 3164

RE: What Are Those Holes For?

Inlets for the cooling air for the two air-conditioning packs primary heat exchangers.

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by 411A
Thu Jan 03, 2002 4:33 pm
Forum: Technical/Operations
Topic: DC-8s With "blowtorches"
Replies: 19
Views: 4235

RE: DC-8s With "blowtorches"

I think you will find Minuteman that the "mixer" is for the hot stream and that these -524D4D engines have been modified to eliminate the mixer from the series, by service bulletin.

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by 411A
Thu Jan 03, 2002 12:16 pm
Forum: Civil Aviation
Topic: Runways For Only Take Off Or Landing
Replies: 8
Views: 4715

RE: Runways For Only Take Off Or Landing

Runway 18 at FRA is used only for takeoffs due to noise and obstructions.

The westerly runways at LHR are alternated for takeoffs and landings...ie: landings on one in the morning and takeoffs in the afternoons and evenings....also for noise considerations.

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by 411A
Thu Jan 03, 2002 12:08 pm
Forum: Civil Aviation
Topic: Why Asian Airlines Use Younger Flight Attendants?
Replies: 20
Views: 9674

RE: Why Asian Airlines Use Younger Flight Attendants?

ANCIENT would be a better description.

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by 411A
Thu Jan 03, 2002 11:54 am
Forum: Technical/Operations
Topic: DC-8s With "blowtorches"
Replies: 19
Views: 4235

RE: DC-8s With "blowtorches"

Actually 777236ER, the "daisy petal", altho very effective on the JT3 and Conway at reducing noise, is NOT used on the RB.211, and never has been on production aircraft. "Tis not needed, the RB.211 is a VERY quiet engine.

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by 411A
Thu Jan 03, 2002 11:42 am
Forum: Civil Aviation
Topic: Why Asian Airlines Use Younger Flight Attendants?
Replies: 20
Views: 9674

RE: Why Asian Airlines Use Younger Flight Attendants?

Cannot say about other asian airlines, but when I worked for SIA the female F/A's were hired on 4 year contracts, that usually were not renewed.....always fresh new faces to be seen.

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by 411A
Thu Jan 03, 2002 11:37 am
Forum: Civil Aviation
Topic: How Do By-pass Jet Engines Reverse Thrust Work?
Replies: 14
Views: 9567

RE: How Do By-pass Jet Engines Reverse Thrust Work?

As you can clearly see from the photo, the translating cowl has moved aft. What you cannot see are the blocker doors inside, which divert the FAN thrust forward (actually at an angle). Note that the hot stream is NOT diverted.
Works good, lasts a long time.

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by 411A
Thu Jan 03, 2002 11:04 am
Forum: Technical/Operations
Topic: DC-8s With "blowtorches"
Replies: 19
Views: 4235

RE: DC-8s With "blowtorches"

You're wrong, Flight152, the picture of the Alitalia DC8 clearly showes the thrust reverser. Have a close look, you can see the tracks on which it moves aft. How do I know you ask.....the chief production test pilot at Douglas was a good friend of mine. When the engine is removed, the thrust reverse...

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by 411A
Thu Jan 03, 2002 9:56 am
Forum: Technical/Operations
Topic: DC-8s With "blowtorches"
Replies: 19
Views: 4235

RE: DC-8s With "blowtorches"

That "daunting equipment" was......the thrust reverser.

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by 411A
Sun Dec 30, 2001 2:22 pm
Forum: Technical/Operations
Topic: L-1011 Flaps
Replies: 36
Views: 12588

RE: L-1011 Flaps

27 is not used because NO operator requested ops at that flap setting....and 42 is blocked because the flap load relief system was not all that reliable.

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by 411A
Sat Dec 29, 2001 3:10 pm
Forum: Technical/Operations
Topic: L-1011 Flaps
Replies: 36
Views: 12588

RE: L-1011 Flaps

Close, but no cigar. ACS increased wing bending relief, not rigidity

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by 411A
Sat Dec 29, 2001 3:01 pm
Forum: Technical/Operations
Topic: Water Injection
Replies: 14
Views: 5548

RE: Water Injection

Actually, DC-10inLB, many of the older 707's and DC8's with turbojets did not have water injection, only a few models. And when the heavier (intercontinental) 707 was introduced, it had JT4 (no water) engines instead of JT3's. Convair 880...no water injection either.

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by 411A
Tue Dec 25, 2001 3:50 pm
Forum: Technical/Operations
Topic: S- Duct
Replies: 7
Views: 3753

RE: S- Duct

There is no correction for the EPR setting on the number two engine on the L1011 due to the 'S' duct. In addition, in the design of the TriStar, the curve of the 'S' duct was kept at less than one quarter the radius of the intake diameter to achieve the desired objective, ie: straight thru performan...

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by 411A
Tue Dec 25, 2001 3:32 pm
Forum: Technical/Operations
Topic: What Is An Emergency Turn?
Replies: 12
Views: 4521

RE: What Is An Emergency Turn?

Jetguy-- The 411 was Cessna's first cabin-class twin and had a few problems in the hands of inexperienced pilots. However, if properly flown, it is quite fast and very comfortable and quiet. I delivered two from the factory in 1967 and the Cessna training provided was comprehensive and well presente...

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by 411A
Tue Dec 25, 2001 12:07 pm
Forum: Technical/Operations
Topic: What Is An Emergency Turn?
Replies: 12
Views: 4521

RE: What Is An Emergency Turn?

The phrase "emergency turn" will be found on many European runway analysis / performance charts, and as such it is not in wide use in the USA.
Jetguy-----yes.

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by 411A
Mon Dec 24, 2001 12:26 pm
Forum: Technical/Operations
Topic: What Is An Emergency Turn?
Replies: 12
Views: 4521

RE: What Is An Emergency Turn?

An emergency turn refers to a turn to avoid terrain/obstacles in the event of an engine failure, sometimes very necessary at some locations.

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by 411A
Thu Dec 13, 2001 12:49 pm
Forum: Civil Aviation
Topic: Boeing 707s
Replies: 23
Views: 1625

RE: Boeing 707s

Quite a lot really, shorter, different flaps, less fuel, lower weights, etc.
Optimised for short-medimum flights.

One model of the 707 was actually shorter than a 720, 707-138 developed for Qantas. Lots of fuel, very long range, nice machine. John Travolta has one. Stage III hushkits I believe.

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by 411A
Thu Dec 13, 2001 12:19 pm
Forum: Technical/Operations
Topic: L-1011 Flaps
Replies: 36
Views: 12588

RE: L-1011 Flaps

LZ-TLT

How's that....once again?

Have flown the TriStar for twenty years...don't seem to remember it quite THAT way. Especially the DLC business.

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by 411A
Wed Dec 12, 2001 2:13 pm
Forum: Civil Aviation
Topic: Cebu Pacific 757's.
Replies: 13
Views: 2624

RE: Cebu Pacific 757's.

Asked at SkyHarbor today...nothing seen, sorry

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by 411A
Mon Dec 10, 2001 8:38 am
Forum: Technical/Operations
Topic: L-1011 Flaps
Replies: 36
Views: 12588

RE: L-1011 Flaps

Flap settings are, 4 10 18 22 27 (not used) 33 42 (blocked on most aircraft). 4, 10, 18, 22 are approved for takeoff, depending on the individual airline procedures. The slats deploy fully when the flap HANDLE moves beyond the 3 degree position. DLC activates when the flap HANDLE is moved beyond the...

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by 411A
Wed Dec 05, 2001 11:29 am
Forum: Technical/Operations
Topic: 250 Kts Under 10,000 Ft
Replies: 31
Views: 31755

RE: 250 Kts Under 10,000 Ft

Some may be interested in what happens when aircraft has a birdstrike at low level-- In 1985 at Khartoum, Sudan an Ethiopian Airlines B727 struck an (estimated) 10 pound buzzard at 330 knots IAS at 4000 AGL. The buzzard went thru: The radome, The forward pressure bulkhead, Broke the First Officers l...

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by 411A
Fri Nov 23, 2001 3:50 pm
Forum: Technical/Operations
Topic: Twin Spool Engines
Replies: 14
Views: 38381

RE: Twin Spool Engines

There has been a jet engine with "reduction gears" in production for quite some time....and it's called TFE-731, has a geared fan. Very popular with the biz-jet set.

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by 411A
Fri Nov 23, 2001 3:13 pm
Forum: Technical/Operations
Topic: INS: Ltn-72
Replies: 2
Views: 7487

RE: INS: Ltn-72

Usually additional waypoints are added at a convenient time, after number eight for example. Unless the LTN-72 has the radio update feature, it does not qualify for RNP-5 airspace requirements. It is however a very rugged piece of equipment with favorable MTBF.

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by 411A
Tue Nov 13, 2001 9:52 am
Forum: Civil Aviation
Topic: KittyHawks L1011s
Replies: 7
Views: 1034

RE: KittyHawks L1011s

Well Ceilidh, that was the plan, however the new owners have the first two aircraft destined for another carrier (E Asia) and they do not want to terminate the rear spar AD prior to delivery. As the aeroplanes would be leased, it would be the owners responsibility to deliver them with a fresh 'C' ch...

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by 411A
Tue Nov 13, 2001 12:36 am
Forum: Civil Aviation
Topic: KittyHawks L1011s
Replies: 7
Views: 1034

RE: KittyHawks L1011s

N103CK has been ferried to OJAI for heavy maintenance, N102CK awaits a test flight and will also be ferried for maintenance. These aircraft will be placed into service in 2002. The other four L1011-200F aircraft await disposition.

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