Search found 33 matches

by Ruddman
Tue Oct 29, 2019 12:29 am
Forum: Technical/Operations
Topic: United 747-100 / 200 / SP Fleet
Replies: 25
Views: 4813

Re: United 747-100 / 200 / SP Fleet

Also did all the QANTAS -200’s all have the -7J motors when they arrived? Or did they have other variants in them as well? I hate being up old threads....but....an Australian site in Australian airlines and fleet show that all QF-238’s ( before those ordered with RB211’s) had the -7F, not -7J. Stra...

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by Ruddman
Sat Sep 21, 2019 2:57 am
Forum: Civil Aviation
Topic: World routes 2020- route development thread
Replies: 19
Views: 2705

Re: World routes 2020- route development thread

Obvious? Money and big bonuses for upper management? Just the usual.

Of course, the island hopping is alive and well, just with seperate tickets. A layover in Fiji and Honolulu never hurt anyone. :)

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by Ruddman
Sat Sep 21, 2019 12:56 am
Forum: Civil Aviation
Topic: World routes 2020- route development thread
Replies: 19
Views: 2705

Re: World routes 2020- route development thread

So with world routes 2020 starting tommorow, it will be interesting to see what happens in terms of new routes. Often the announcements only involve the host. ADL is the host. Can’t wait for AA/QF to announce ADL-LAX :spin: Why? That would be downright horrible. What is it with these ultra long ran...

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by Ruddman
Fri Sep 20, 2019 6:48 pm
Forum: Technical/Operations
Topic: United 747-100 / 200 / SP Fleet
Replies: 25
Views: 4813

Re: United 747-100 / 200 / SP Fleet

Also did all the QANTAS -200’s all have the -7J motors when they arrived? Or did they have other variants in them as well?

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by Ruddman
Thu Sep 19, 2019 2:13 pm
Forum: Technical/Operations
Topic: United 747-100 / 200 / SP Fleet
Replies: 25
Views: 4813

Re: United 747-100 / 200 / SP Fleet

Ok thanks. Appreciate it.

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by Ruddman
Wed Sep 18, 2019 7:16 pm
Forum: Technical/Operations
Topic: United 747-100 / 200 / SP Fleet
Replies: 25
Views: 4813

Re: United 747-100 / 200 / SP Fleet

Surprised all those 741’s were kept with the -3A’s when an ‘easy’ conversion was available well before that. Or is that all the original frames and engine combinations? Airfleets lists all -100’s with the -7A’s. Also how many -100’s had the 750,000 gross weight limit rather then the 734,000 lb limit?

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by Ruddman
Wed Jun 19, 2019 12:25 pm
Forum: Civil Aviation
Topic: 747 Classic B Variants
Replies: 41
Views: 5036

Re: 747 Classic B Variants

Miquel787 wrote:
You are not reading...3AW not 3A..and yes they were slow.


-3A....with water injection....-3AW. Finger slip. ;)



SO the question for some again regarding the 'upgrade'. I'v read KLM -200's were converted to -7W's. Why choose that over the -7A's which must have been available at the same time?

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by Ruddman
Wed Jun 19, 2019 12:07 am
Forum: Civil Aviation
Topic: 747 Classic B Variants
Replies: 41
Views: 5036

Re: 747 Classic B Variants

Miquel787 wrote:
I think the first KLM - 200B.s had JT9D-3AW.s fitted with waterinjection..Later it was brought to 7 spec.


Wow, if at 775,000 lb max take off weight it must have been a slug with the -3A’s??!!

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by Ruddman
Tue Jun 18, 2019 8:43 pm
Forum: Civil Aviation
Topic: 747 Classic B Variants
Replies: 41
Views: 5036

Re: 747 Classic B Variants

Sorry to bring up a 4-day old thread, :p, but I’ve read that the early KLM -200B’s had the JT9D-7W fitted.

-7W?

I’ve heard of the -7 and -7A. But what is the -7W? Is it the 45,500lb -7 with the water injection?
If so, why didn’t they get fitted with the more powerful-7A if it was available?

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by Ruddman
Thu May 02, 2019 7:38 pm
Forum: Technical/Operations
Topic: 747 classic performance charts wanted
Replies: 0
Views: 714

747 classic performance charts wanted

I was chasing the 'altitude capability' (optimum/maximum cruise weight FL etc) charts only for the 747-200 with the -7 engines and the charts also for the -200 with the CF6-50E2 engines. Any help greatly appreciated.

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by Ruddman
Fri Mar 01, 2019 2:58 pm
Forum: Technical/Operations
Topic: BOAC 747-100 fleet info wanted
Replies: 0
Views: 944

BOAC 747-100 fleet info wanted

I just had a few questions regarding the early 741's BOAC used. I recall reading that the first orders had the -3A engines then the next order had the -7A's. Is this correct? Also what were the gross weights of the aircraft? I think being -100's they were all the 735,000lb airframes? And if anyone k...

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by Ruddman
Fri Dec 07, 2018 4:45 pm
Forum: Technical/Operations
Topic: Combatting Unreliable Airspeed
Replies: 19
Views: 2340

Re: Combatting Unreliable Airspeed

Out of curiosity from a no -Flyer, are those ‘unreliable airspeed’ charts fairly accurate? I’ve seen a couple here and there. If it says at a certain weight and max climb thrust (always seems to be at 290kts), you’d achieve a 1600ft/min climb rate, is that reasonably accurate? Perhaps give or take a...

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by Ruddman
Tue Aug 07, 2018 7:51 pm
Forum: Technical/Operations
Topic: B200 King Air engine longevity question.
Replies: 4
Views: 949

Re: B200 King Air engine longevity question.

Ok thank you very much.
From some reason I was curious as to how long these engines will last and still give the expected performance.

That helped with some questions I had. Again thank you.

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by Ruddman
Fri Aug 03, 2018 9:04 pm
Forum: Technical/Operations
Topic: B200 King Air engine longevity question.
Replies: 4
Views: 949

B200 King Air engine longevity question.

Non pilot but a King Air B200 fan. Lived close to an airport that often had the RFDS B200 fly low over head many a time after takeoff. Sexy aircraft. Purely from an interested persons sake is the basis for these questions. Spoke to someone once who told me at ISA+20 with normal cruise TQ, a brand ne...

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by Ruddman
Sat Jun 30, 2018 9:00 pm
Forum: Technical/Operations
Topic: 747-400 decent rate
Replies: 19
Views: 1948

Re: 747-400 decent rate

Thanks all for the explanation as to the - at times - shallower descent (not decent,; bad spelling by me) seen on flightaware etc. One more question being the huge 747 fan that I am. If that’s ok? It seems when one wants to increase rate of descent, the IAS is increased. I.e 330kts FL CH vs 280. Do...

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by Ruddman
Thu Jun 28, 2018 2:39 pm
Forum: Technical/Operations
Topic: 747-400 decent rate
Replies: 19
Views: 1948

Re: 747-400 decent rate

Thanks all for the explanation as to the - at times - shallower descent (not decent,; bad spelling by me) seen on flightaware etc. One more question being the huge 747 fan that I am. If that’s ok? It seems when one wants to increase rate of descent, the IAS is increased. I.e 330kts FL CH vs 280. Doe...

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by Ruddman
Wed Jun 27, 2018 2:15 am
Forum: Technical/Operations
Topic: 747-400 decent rate
Replies: 19
Views: 1948

Re: 747-400 decent rate

[twoid][/twoid] Many pilots will set the vertical speed at -500fps (the minimum expected by ATC) for a cruise descent unless ATC asks for more. Much gentler for the passengers. Besides we typically want to stay up high as long as possible. Oh ok, that explains the shallow decent i sometimes see on f...

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by Ruddman
Wed Jun 27, 2018 12:30 am
Forum: Technical/Operations
Topic: 747-400 decent rate
Replies: 19
Views: 1948

Re: 747-400 decent rate

Generally speaking, on a 400 at around a medium gross weight of around 250 Tons, an idle descent from 370 should give you around 2500 FPM indicated. Depending on head/tailwinds the actual descent will be lower/higher. The change in pitch would be around 3 degrees from what level flight was. Thank y...

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by Ruddman
Tue Jun 26, 2018 6:10 pm
Forum: Technical/Operations
Topic: 747-400 decent rate
Replies: 19
Views: 1948

747-400 decent rate

Just after some typical pitch and decent rate figures at idle thrust. Noticed on flightaware the decent rates are pretty modest although I can’t veruify how accurate they are. Most are around 2000- 2200 ft/min from FL370-380. And one was around 500-700 ft/min which is very modest. Is the first examp...

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by Ruddman
Mon Jun 11, 2018 4:24 am
Forum: Aviation Hobby
Topic: PMDG 747 vs 777 - What one to get?
Replies: 9
Views: 7348

Re: PMDG 747 vs 777 - What one to get?

I say avoid both and for half the price you can get ahold of the iFly 747 V2. It's $59.99 and does at least 95% of what the pmdg 747 does. http://www.iflysimsoft.com Add in the fact it can fly RNP RF legs (although not on the actual aircraft), you'd say its the same with much better FDE for hand fl...

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by Ruddman
Thu May 03, 2018 5:17 am
Forum: Technical/Operations
Topic: 'Broken' seat on JQ flight
Replies: 21
Views: 1862

Re: 'Broken' seat on JQ flight

I've had 2-3 broken seats in my life as a pax. Nobody seems to care in OZ about that stuff. Not really a safety issue when flying into the ground at 600 kts +....

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by Ruddman
Thu Apr 26, 2018 10:37 pm
Forum: Technical/Operations
Topic: JT9D-7A thrust rating confusion
Replies: 2
Views: 1099

Re: JT9D-7A thrust rating confusion

True I guess. None of this matters one way or another at the end if the day. Purely out of interests sake is all. Some FAA type certificate data sheets state at standard temps, SL, 5 min limit 46150/47000 lbs dry/wet thrust ratings. Boeing docs entitled ‘Startup Boeing” state same conditions up to 8...

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by Ruddman
Tue Apr 24, 2018 4:11 am
Forum: Technical/Operations
Topic: JT9D-7A thrust rating confusion
Replies: 2
Views: 1099

JT9D-7A thrust rating confusion

Looking at various documents here there and everywhere (internet and for hobby only) for this particular engine on the 747-100/200, I’ve seen various thrust ratings. Some of them vary by a decent margin. I know it had a ‘wet’ thrust rating. I’m looking for Info on the ‘dry’tnrust rating. So far I’ve...

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by Ruddman
Sun Mar 11, 2018 11:41 pm
Forum: Aviation Hobby
Topic: Best Flight Sim?
Replies: 26
Views: 5360

Re: Best Flight Sim?

Image
Image
Image
Image

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by Ruddman
Sun Mar 11, 2018 11:37 pm
Forum: Aviation Hobby
Topic: Rekindling my flightsim - what to do?
Replies: 5
Views: 1210

Re: Rekindling my flightsim - what to do?

FS9 is the last of the genuine flight simulators. Forget FSuX and P3Dud. Pureley to satisfy the 'gamer' crowd. Washed out graphics and cartoon features. I downgraded to FSX with ORBX airports/scenery and PMDG and everything else. Realized how crap it was and moved on up to FS9(and iFLY - more compre...

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by Ruddman
Thu Feb 15, 2018 9:18 pm
Forum: Technical/Operations
Topic: 747-200 wing vs -300 wing
Replies: 12
Views: 2251

Re: 747-200 wing vs -300 wing

113312 wrote:
The747-200 wing was the same although fairings might be different. Long Range Cruise at high weight was M.85-.86


OK interesting. Thank you once again everybody for the assistance..

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by Ruddman
Thu Feb 15, 2018 4:02 pm
Forum: Technical/Operations
Topic: 747-200 wing vs -300 wing
Replies: 12
Views: 2251

Re: 747-200 wing vs -300 wing

Ok thank you once again. :)

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by Ruddman
Thu Feb 15, 2018 5:10 am
Forum: Technical/Operations
Topic: 747-200 wing vs -300 wing
Replies: 12
Views: 2251

Re: 747-200 wing vs -300 wing

Thank guys for the accurate information. Also I'm chasing some info for the -200 with the R211-524D4 motors. At max GW (833,000), what would a typical initial cruise altitude be? I've read here and there FL290-310? Would that be at ISA temps? If it was say, ISA+20 etc, would you expect that to be lo...

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by Ruddman
Wed Feb 14, 2018 7:06 pm
Forum: Technical/Operations
Topic: 747-200 wing vs -300 wing
Replies: 12
Views: 2251

747-200 wing vs -300 wing

According to some info I was reading, the 747-300 wing was slightly resdesigned to allow a Mach 0.85 cruise vs the 0.84 cruise for the -200. Does that mean the -200 couldn’t achieve M0.85 in cruise ...at all? I’ve seen charts that had the -200 with a max cruise speed of M0.86. Im guessing this was a...

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by Ruddman
Tue Jan 30, 2018 6:17 pm
Forum: Technical/Operations
Topic: TWA / Pan Am 747-100 engines?
Replies: 10
Views: 1924

Re: TWA / Pan Am 747-100 engines?

IIRC, both PA and TW upgraded the -3A to the -7A due to the increased reliability. I could be wrong, but I can't remember a -7 on any 747. I know NW upgraded their 100s from -3A to -7A also. Ok thank you. I’m guessing the -3A wasnt used for any length of time. And does anyone know what gross weight...

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by Ruddman
Mon Jan 29, 2018 8:10 pm
Forum: Technical/Operations
Topic: TWA / Pan Am 747-100 engines?
Replies: 10
Views: 1924

TWA / Pan Am 747-100 engines?

HI, I was wondering what engines were used in the 741 fleet by these two airlines? Did any use the JT9D-3/A engines? I've read somewhere that many of the 741's with -3 engines were replaced with the -7's. Was this the -7's or -7A's?

Any help greatly appreciated!

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by Ruddman
Tue Oct 24, 2017 12:06 am
Forum: Technical/Operations
Topic: Technical data for 747-200 required
Replies: 3
Views: 774

Re: Technical data for 747-200 required

Thank you to both of you!
I knew it would be a little - or a lot- difficult considering most of that model, if not all, are no longer in service.

Much appreciated.

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by Ruddman
Mon Oct 23, 2017 4:02 pm
Forum: Technical/Operations
Topic: Technical data for 747-200 required
Replies: 3
Views: 774

Technical data for 747-200 required

Hi, I am chasing some information regarding the 742 with JT9D-7J engines. I think some of those air frame / engine combinations had the 803000 lb MRW? I'm after particularly the climb EPR settings. I have that for the -7R4G2. I'm wondering whether the -7J was similar as far as setting climb thrust w...

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