Search found 202 matches

by tepidhalibut
Tue Feb 25, 2020 2:48 pm
Forum: Technical/Operations
Topic: Durability of high-pressure turbine blades
Replies: 3
Views: 1273

Re: Durability of high-pressure turbine blades

Depends upon a whole range of factors : type of engine, severity of operation, environment of use, etc. I've known HPT Blades that look sh***y and needing replacing after 800 cycles, I've known some that are OK for refitment after 6,000 cycles. There is no "typical". However, typically ( :...

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by tepidhalibut
Wed Aug 07, 2019 3:13 pm
Forum: Travel, Polls & Preferences
Topic: Remaining Pan Am 747 airframes
Replies: 20
Views: 3497

Re: Remaining Pan Am 747 airframes

https://www.airfleets.net/flottecie/Pan ... 747-35.htm
Good place to start.
-->

I presume that your researching took you to Airfleets.
https://www.airfleets.net/flottecie/Pan ... 747-35.htm
Good place to start.

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by tepidhalibut
Mon Jun 03, 2019 7:52 am
Forum: Technical/Operations
Topic: Trent 700 visible differences
Replies: 4
Views: 1532

Re: Trent 700 visible differences

Over the 25 years of Production, yes, there have been changes to the design of the Trent 700... but they're not restricted to any particular model. As previously stated, the differences are in the Electronics (EEC and DEP) leading to differences in rated thrust. To be particularly geeky - one differ...

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by tepidhalibut
Fri May 24, 2019 1:24 pm
Forum: Civil Aviation
Topic: Airbus A330neo Production/Delivery Thread - 2019
Replies: 207
Views: 95215

Re: Airbus A330neo Production/Delivery Thread - 2019

https://www.flightglobal.com/news/artic ... eo-458449/
-->

Maybe it deserves its own thread, but
Airbus has delivered the first A330-900 to Delta Air Lines
https://www.flightglobal.com/news/artic ... eo-458449/

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by tepidhalibut
Sun Mar 24, 2019 10:46 pm
Forum: Technical/Operations
Topic: TriStar parts?
Replies: 3
Views: 1507

Re: TriStar parts?

Yes, there are some parts which are common, but it gets very complex with the exact model number, and the fact that the majority of G/Hs are actually G-T/H-T engine. A contact informs me that even RR has major problems procuring parts / engines for their own Flying Test Bed's pusher engines.

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by tepidhalibut
Fri Mar 15, 2019 9:41 am
Forum: Technical/Operations
Topic: 787-8/9 Trent 1000 Package C to Trent 1000-TEN conversion
Replies: 29
Views: 3373

Re: 787-8/9 Trent 1000 Package C to Trent 1000-TEN conversion

I have no clue were this "grandfather" thing comes from. Procedurally, the important part of PART 21—CERTIFICATION PROCEDURES FOR PRODUCTS AND ARTICLES , Subpart D—Changes to Type Certificates is §21.101 Designation of applicable regulations. (a) An applicant for a change to a type certif...

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by tepidhalibut
Thu Mar 14, 2019 4:36 pm
Forum: Technical/Operations
Topic: 787-8/9 Trent 1000 Package C to Trent 1000-TEN conversion
Replies: 29
Views: 3373

Re: 787-8/9 Trent 1000 Package C to Trent 1000-TEN conversion

WIederling wrote:
RJMAZ wrote:
It is all about max profit. Safety comes second.

I don't ...


Please WIederling, Don't Feed The Troll.
RJMAZ either has a huge chip on his shoulder, or just enjoys stirring things up. (I know just how mis-directed his comments are.)

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by tepidhalibut
Fri Mar 08, 2019 8:00 am
Forum: Technical/Operations
Topic: Out of Curiosity: Two Different Engines on Same Airframe Safer?
Replies: 24
Views: 3435

Re: Out of Curiosity: Two Different Engines on Same Airframe Safer?

I know that Kalvado mentioedn the LHR 777 event, but can anyone name an actual historic incident where different engine types would have saved lives?

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by tepidhalibut
Tue Feb 05, 2019 8:16 am
Forum: Technical/Operations
Topic: Trent 772B-60
Replies: 5
Views: 1173

Re: Trent 772B-60

Agree that you're unlikely to get that detailed information (tho' I'm sure that the Chinese Engine Company will have them :-) ) but it would be worth emailing RR directly - they do a lot of STEM work, and may have something suitable.

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by tepidhalibut
Fri Jan 18, 2019 8:28 am
Forum: Technical/Operations
Topic: Most expensive aircraft part
Replies: 39
Views: 8291

Re: Most expensive aircraft part

Does a bird dent an inlet, or they made of super-material. Show me an intake that can shrug off all possible impacts with nary a scratch....and I'll show you an intake that's overdesigned for 99.99...% of flights. In practice, the material / thickness used will mean that all likely impacts will be ...

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by tepidhalibut
Wed Jan 09, 2019 1:33 pm
Forum: Technical/Operations
Topic: 747-400 Engine types and different fuel efficiency
Replies: 3
Views: 1833

Re: 747-400 Engine types and different fuel efficiency

I've read that RR are the most efficient, but most expensive to acquire/maintain, GE's the opposite & P&W in between the two in both aspects. Strangely, I've heard differently from a RR bloke :- Comparing brand new engines, the RB211 is in third place. However, the RB211 deteriorates less, ...

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by tepidhalibut
Mon Jan 07, 2019 9:17 am
Forum: Technical/Operations
Topic: Engine spinner pattern question
Replies: 43
Views: 4816

Re: Engine spinner pattern question

If I may speak from inside one of the Big Three EngCo's... (But not on their behalf.) The stripe / spiral provides a better indication of fan rotation, especially useful on the ground / in poor light / when windmilling. Having spoken to a few in-field mechanics, it's a feature that they appreciate, ...

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by tepidhalibut
Fri Dec 21, 2018 9:02 am
Forum: Civil Aviation
Topic: Trent 7000 gains ETOPS330
Replies: 17
Views: 3367

Re: Trent 7000 gains ETOPS330

I have also heard that the FAA have also type approved the Trent7000 engine. The TCDS might be delayed by the DoT funding issues, but sounds like good news for RR etc. Well done RR.

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by tepidhalibut
Fri Dec 21, 2018 9:00 am
Forum: Civil Aviation
Topic: Trent 7000 gains ETOPS330
Replies: 17
Views: 3367

Re: Trent 7000 gains ETOPS330

The Trent 800 didn't achieve ETOPS330 certification until 20 years after EIS. That might be related to the fact that at EIS, the ETOPS330 regulations did not exist. The Trent 800 was (one of the?) first to certify with "ETOPS out of the box", and since then it has been boringly reliable. ...

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by tepidhalibut
Thu Dec 20, 2018 10:20 am
Forum: Civil Aviation
Topic: TAP receives first A330Neo
Replies: 78
Views: 18688

Re: TAP receives first A330Neo

I hate to spoil a good argument with some facts, but... If you are gaining ETOPS approval by the traditional route - demonstrated in-service reliability - then ETOPS approval will grow in steps. ETOPS 60, to ETOPS 90 to ETOPS 120 to ETOPS 180, as service hours builds up, and reliability experience i...

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by tepidhalibut
Thu Nov 01, 2018 9:10 am
Forum: Technical/Operations
Topic: Core engine speeds
Replies: 6
Views: 2099

Re: Core engine speeds

The other easy source of information is the Type Certificate Data Sheet, which includes the operating limits for the shafts. For the PW1100G, and gives the Maximum LP speed as 10,047rpm and maximum HP speed as 22,300rpm. It doesn't detail typical speeds at cruise, but I'd bet that they'd be around >...

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by tepidhalibut
Wed Oct 24, 2018 10:13 am
Forum: Technical/Operations
Topic: Difference between Trent 1000 PK C and TEN
Replies: 6
Views: 2871

Re: Difference between Trent 1000 PK C and TEN

How did the Trent Ten get certified? It had so many differences that effectively it is a new engine. Did it have to have a flight test program, if so for how long? How much shorter was the test program than the new engines on the A330NEO? I'm curious how they can justify such a quick certification ...

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by tepidhalibut
Fri Jul 20, 2018 9:41 am
Forum: Civil Aviation
Topic: Farnborough Air Show 2018 - Other Manufacturers/Engine Order Thread
Replies: 90
Views: 24526

Re: Farnborough Air Show 2018 - Other Manufacturers/Engine Order Thread

This might be the wrong place to ask, but any news on the Trent7000 Certification? I would have thought that Farnborough would be the ideal place to announce things ... but it's quiet. Launched the aircraft / engine at Farnborough 2014. Problems ? or RR ending the show with good news ? Any info woul...

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by tepidhalibut
Wed Aug 24, 2016 9:39 am
Forum: Technical/Operations
Topic: History of Trent engines
Replies: 14
Views: 2014

Re: History of Trent engines

There's potential for a very long and very trainspotter-ish post concerning Boeing 767-X, RB211-524L, RB211-700 and other short-lived terminologies, but I'll keep this short and simple. The naming of the Trent was originally a fairly sensible structure : Trent 600 for the MD11 with around 6x,000 lb ...

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by tepidhalibut
Wed Dec 02, 2015 6:02 pm
Forum: Civil Aviation
Topic: Hair-rising Accident Investigation Reports
Replies: 75
Views: 20932

RE: Hair-rising Accident Investigation Reports

I'd suggest that Pinnacle Airlines Flight 3701 is worth considering. Experienced crew encounter a hitherto untroublesome phenomenon - Engine Rotor Lock - and die as a result. However, said crew and their jaw-dropping behaviour are <acronym title="Fargo - Hector International (FAR / KFAR), USA - Nort...

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by tepidhalibut
Thu Sep 24, 2015 11:39 am
Forum: Civil Aviation
Topic: CRAIC CR929 discussion thread
Replies: 523
Views: 51470

RE: China/Russian Widebody To Be Approved Soon

No word on the possibility of using Western Engines? I would have thought that would have been a lower risk option.

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by tepidhalibut
Sun Aug 16, 2015 11:39 am
Forum: Civil Aviation
Topic: Jet Engines Aren't Tested For Drone Ingestion(duh!
Replies: 34
Views: 8160

RE: Jet Engines Aren't Tested For Drone Ingestion(duh!

I wouldn't want to offer an opinion about the American rules, but the European Regulations (JAR-E and <acronym title="Continental Micronesia (USA)">CS</acronym>-E) already take this into account - sort of. There's an engine regulation that discusses the acceptability of FOD that could affect one eng...

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by tepidhalibut
Wed Feb 11, 2015 1:24 pm
Forum: Civil Aviation
Topic: The Most Fuel-inefficient Jetliner?
Replies: 61
Views: 22156

RE: The Most Fuel-inefficient Jetliner?

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/CRJ900" class="quote" target="_blank">CRJ900</a> (<a href="#10" class="quote">Reply 10</a>):<br/><i>The Boeing 767-400 must be the most fuel-ine...

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by tepidhalibut
Tue Sep 30, 2014 9:50 pm
Forum: Civil Aviation
Topic: Easa Certifies Airbus A350
Replies: 111
Views: 20678

RE: Easa Certifies Airbus A350

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/CrimsonChin" class="quote" target="_blank">CrimsonChin</a> (<a href="#29" class="quote">Reply 29</a>):<br/><i>Hope we find this out soon. I was ...

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by tepidhalibut
Sat Mar 08, 2014 8:35 am
Forum: Technical/Operations
Topic: 787 Engines - GE Or RR Differences
Replies: 23
Views: 39329

RE: 787 Engines - GE Or RR Differences

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/Stitch" class="quote" target="_blank">Stitch</a> (<a href="#15" class="quote">Reply 15</a>):<br/><i><acronym title="Royal Air Force (United King...

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by tepidhalibut
Fri Jan 10, 2014 8:51 pm
Forum: Technical/Operations
Topic: Why No White Spiral On The RR RB.211-535?
Replies: 32
Views: 11420

RE: Why No White Spiral On The RR RB.211-535?

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/CALTECH" class="quote" target="_blank">CALTECH</a> (<a href="#17" class="quote">Reply 17</a>):<br/><i>Then a engineer has to give a engineering ...

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by tepidhalibut
Thu Jun 20, 2013 2:49 pm
Forum: Non-Aviation
Topic: The Whiskey/Whisky/Bourbon/Scotch Thread
Replies: 34
Views: 2828

RE: The Whiskey/Whisky/Bourbon/Scotch Thread

Heading off on a tangent, but I'm sure some of you will appreciate this tribute to the Majesty of Scotland's Glens. I love Scotland's glens, and whatever else we lose Please leave us our glens, our glorious glens Our mountains as grand, Ben Nevis, Ben Lomond too You can have all those Bens, but leav...

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by tepidhalibut
Sat Mar 30, 2013 4:19 pm
Forum: Technical/Operations
Topic: Phase 5 Combustors - RB211-535E4
Replies: 10
Views: 8168

RE: Phase 5 Combustors - RB211-535E4

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/boeingfixer" class="quote" target="_blank">boeingfixer</a> (<a href="#3" class="quote">Reply 3</a>):<br/><i>I believe the RB211-535E4B was deliv...

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by tepidhalibut
Sat Mar 30, 2013 4:06 pm
Forum: Technical/Operations
Topic: What RR Power For The A380-900?
Replies: 20
Views: 9233

RE: What RR Power For The A380-900?

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/817Dreamliiner" class="quote" target="_blank">817Dreamliiner</a> (<a href="#1" class="quote">Reply 1</a>):<br/><i>If Airbus were to launch a -90...

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by tepidhalibut
Sat Feb 16, 2013 7:57 pm
Forum: Military Aviation & Space Flight
Topic: Best Looking Fighter?
Replies: 110
Views: 22257

RE: Best Looking Fighter?

Some impressive suggestions, and worthy contenders, but does no-one remember this beast? <br/><center><font color="#EEEEEE" size="1" face="ARIAL, Helvetica, Geneva"><a href="/photo/Untitled-(Thunder-City)/English-Electric-Lightning/1583315/L/" target="_blank">View Large</a> <a href="/photo/Untitled-...

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by tepidhalibut
Sat Feb 16, 2013 7:29 pm
Forum: Technical/Operations
Topic: Why No Spinner Painting On LH 748?
Replies: 10
Views: 6921

RE: Why No Spinner Painting On LH 748?

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/LZ129" class="quote" target="_blank">LZ129</a> (<a href="#3" class="quote">Reply 3</a>):<br/><i>Do you have a link for me, maybe to a technical ...

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by tepidhalibut
Sun Jun 17, 2012 2:13 pm
Forum: Non-Aviation
Topic: London Olympics Opening Ceremony Revealed
Replies: 22
Views: 2530

RE: London Olympics Opening Ceremony Revealed

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/MadameConcorde" class="quote" target="_blank">MadameConcorde</a> (<a href="#0" class="quote">Thread starter</a>):<br/><i>The Olympic Stadium wil...

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by tepidhalibut
Sat May 19, 2012 10:42 am
Forum: Non-Aviation
Topic: Weird Music Videos!
Replies: 19
Views: 2490

RE: Weird Music Videos!

Surprised that no-one has mentioned True Faith yet. <a href="http://www.dailymotion.com/video/x17q9x_new-order-true-faith_music" target="_blank">http://www.dailymotion.com/video/x17q9x_new-order-true-faith_music</a> Weird and Wonderful But, if you have the time, Aphex Twin is a good place to get wei...

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by tepidhalibut
Sat May 12, 2012 6:25 pm
Forum: Non-Aviation
Topic: Best Films You Ever Saw And Why
Replies: 84
Views: 5178

RE: Best Films You Ever Saw And Why

Looking at the starting post, amongst my favourites that might interest the ThreadStarter : "The Wages of Fear" (Le Salaire de la peur) - 1983 When a South American oil well owned by an American company catches fire, the company hires four European men, down on their luck, to drive two trucks over m...

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by tepidhalibut
Fri May 04, 2012 4:53 pm
Forum: Technical/Operations
Topic: BP Turbo Oil (Use It, Or Not To Use It)
Replies: 23
Views: 21311

RE: BP Turbo Oil (Use It, Or Not To Use It)

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/N8911E" class="quote" target="_blank">N8911E</a> (<a href="#0" class="quote">Thread starter</a>):<br/><i>I am just wondering what would happen i...

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by tepidhalibut
Sun Feb 19, 2012 7:26 pm
Forum: Civil Aviation
Topic: Trent XWB Completes First Flight
Replies: 98
Views: 22368

RE: Trent XWB Completes First Flight

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/DocLightning" class="quote" target="_blank">DocLightning</a> (<a href="#34" class="quote">Reply 34</a>):<br/><i>After all, the Trent 900 was <ac...

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by tepidhalibut
Sun Feb 19, 2012 2:36 pm
Forum: Civil Aviation
Topic: Trent XWB Completes First Flight
Replies: 98
Views: 22368

RE: Trent XWB Completes First Flight

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/seabosdca" class="quote" target="_blank">seabosdca</a> (<a href="#20" class="quote">Reply 20</a>):<br/><i>Add me to the chorus of those who are ...

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by tepidhalibut
Sat Nov 19, 2011 12:51 pm
Forum: Civil Aviation
Topic: Are Engines Pacing 787 Deliveries?
Replies: 48
Views: 12736

RE: Are Engines Pacing 787 Deliveries?

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/JoeCanuck" class="quote" target="_blank">JoeCanuck</a> (<a href="#13" class="quote">Reply 13</a>):<br/><i>It annoys me to no end when vendors of...

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by tepidhalibut
Sat Oct 29, 2011 12:22 pm
Forum: Technical/Operations
Topic: Engine Performance-degarding Over Time
Replies: 7
Views: 7333

RE: Engine Performance-degarding Over Time

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/XXXX10" class="quote" target="_blank">XXXX10</a> (<a href="#0" class="quote">Thread starter</a>):<br/><i>Does anyone know if engines on modern a...

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by tepidhalibut
Wed Sep 14, 2011 9:48 pm
Forum: Technical/Operations
Topic: Airplane Nacelles: Why So Many Differences?
Replies: 10
Views: 7894

RE: Airplane Nacelles: Why So Many Differences?

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/BMI727" class="quote" target="_blank">BMI727</a> (<a href="#3" class="quote">Reply 3</a>):<br/><i>Quoting VC10er (Thread starter):And why not on...

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by tepidhalibut
Wed Sep 14, 2011 9:37 pm
Forum: Technical/Operations
Topic: Airlines Paying For Engines Against Hour Flown?
Replies: 30
Views: 8689

RE: Airlines Paying For Engines Against Hour Flown?

Nothing much to add, but I just thought I'd add a viewpoint. 30 Years ago, yes, Engine Companies sold engines to airlines, generally at a minimal / negative margin. However, they made their money from engine component sales, and engine rebuilds. A good business, for some people. But the odd situatio...

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by tepidhalibut
Fri Aug 12, 2011 9:46 pm
Forum: Military Aviation & Space Flight
Topic: Questions About The RAF's Voyager A330MRTTs.
Replies: 37
Views: 10966

RE: Questions About The RAF's Voyager A330MRTTs.

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/474218" class="quote" target="_blank">474218</a> (<a href="#31" class="quote">Reply 31</a>):<br/><i>Quoting KC135TopBoom (Reply 30):Does anyone ...

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by tepidhalibut
Sun Apr 10, 2011 3:05 pm
Forum: Travel, Polls & Preferences
Topic: Farthest Airport From City Served?
Replies: 107
Views: 24243

RE: Farthest Airport From City Served?

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/alasdair1982" class="quote" target="_blank">alasdair1982</a> (<a href="#72" class="quote">Reply 72</a>):<br/><i><acronym title="Glasgow - Prestw...

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by tepidhalibut
Wed Feb 16, 2011 6:06 pm
Forum: Travel, Polls & Preferences
Topic: Greatest Aviation Movie Ever?
Replies: 46
Views: 5514

RE: Greatest Aviation Movie Ever?

One that I want to see, but haven't yet. <a href="http://en.wikipedia.org/wiki/No_Highway_in_the_Sky" target="_blank">No Highway in the Sky</a>. I've read the <a href="http://en.wikipedia.org/wiki/No_Highway" target="_blank">original book</a>, and tho' melodramatic, it intrigued me. Then, knowing of...

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by tepidhalibut
Wed Sep 22, 2010 4:23 pm
Forum: Military Aviation & Space Flight
Topic: First A330MRTT For UK Royal Air Force
Replies: 62
Views: 19926

RE: First A330MRTT For UK Royal Air Force

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/KC135TopBoom" class="quote" target="_blank">KC135TopBoom</a> (<a href="#60" class="quote">Reply 60</a>):<br/><i>Is there any possibility of cutt...

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by tepidhalibut
Thu Jul 29, 2010 6:11 pm
Forum: Technical/Operations
Topic: So Who Actually Works In Tech Side Of Aviation?
Replies: 39
Views: 5901

RE: So Who Actually Works In Tech Side Of Aviation?

BSc(Eng) Hon
20+ years in Engineering with ... ( an AeroEngine company. )

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by tepidhalibut
Sun Jun 20, 2010 9:43 pm
Forum: Technical/Operations
Topic: Are Entire Engines Ever Changed?
Replies: 33
Views: 11384

RE: Are Entire Engines Ever Changed?

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/HAWK21M" class="quote" target="_blank">HAWK21M</a> (<a href="#24" class="quote">Reply 24</a>):<br/><i>Any news on the Proposed RB211-535E4-C whi...

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by tepidhalibut
Sun May 16, 2010 7:13 pm
Forum: Technical/Operations
Topic: What Is The Cone On The Back Of A Jet Engine?
Replies: 23
Views: 28170

RE: What Is The Cone On The Back Of A Jet Engine?

<table border="0" align="CENTER" width="95%" class="quote"><tr><td><font size="2" face="ARIAL, Helvetica, Geneva" color="#9A9DA0">Quoting <a href="/profile/AirframeAS" class="quote" target="_blank">AirframeAS</a> (<a href="#2" class="quote">Reply 2</a>):<br/><i>CNA = Common Nozzle Area</i></font></t...

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by tepidhalibut
Sun Jan 31, 2010 9:38 pm
Forum: Technical/Operations
Topic: RR Trent
Replies: 6
Views: 3306

RE: RR Trent

Are you aware of why they have river names? The original <acronym title="Royal Air Force (United Kingdom)">RR</acronym> Piston engines were names after birds, and there was a certain symmetry between the reciprocating pistons and the flapping of wings. When the jet engine was developed, the smooth c...

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