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Trijets W/O R/T #2 Engine  
User currently offlineChamonix From France, joined Mar 2011, 346 posts, RR: 1
Posted (3 years 4 months 3 weeks 3 days 3 hours ago) and read 2862 times:
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Did 727s have no R/T on the #2 engine?
Ditto for the L-1011?

17 replies: All unread, jump to last
 
User currently offlineNorthwest727 From United States of America, joined Jul 2005, 491 posts, RR: 0
Reply 1, posted (3 years 4 months 3 weeks 3 days 3 hours ago) and read 2850 times:

The only trijets I know of that do not have reverse thrust on the #2 engine are the Dassault Falcon 50/900/7X and the Tupolev Tu-154. The L-1011 and the 727 did have reverse thrust on the #2 engine. As did the DC-10/MD-11.

Judging by photos, I think the Yakovlev Yak-40/42 and the Hawker Siddeley HS 121 Trident don't have reverse thrust on the #2 engine either, but somebody correct me if I'm wrong.


User currently offlinetb727 From United States of America, joined Jun 2005, 1588 posts, RR: 9
Reply 2, posted (3 years 4 months 3 weeks 3 days 2 hours ago) and read 2828 times:

Quoting Chamonix (Thread starter):
Did 727s have no R/T on the #2 engine?

The 727-100QF(Quiet Freighter) conversion that UPS did with the Tay engines removed the TR from the #2 engine.

The Super-27 mod with the -217 engines also has the #2 TR removed.



Too lazy to work, too scared to steal!
User currently offline26point2 From United States of America, joined Mar 2010, 820 posts, RR: 0
Reply 3, posted (3 years 4 months 3 weeks 3 days 2 hours ago) and read 2817 times:

Quoting Northwest727 (Reply 1):
The only trijets I know of that do not have reverse thrust on the #2 engine are the Dassault Falcon 50/900/

This is wrong, it's the other way around..... Dassault Falcon 50/900 ONLY has T/R on #2 engine. No T/R on #s 1 & 3.


User currently onlineKPWMSpotter From United States of America, joined Dec 2006, 443 posts, RR: 2
Reply 4, posted (3 years 4 months 3 weeks 3 days 1 hour ago) and read 2802 times:

Quoting Northwest727 (Reply 1):
The only trijets I know of that do not have reverse thrust on the #2 engine are the Dassault Falcon 50/900/7X and the Tupolev Tu-154

From what I recall, the Falcon 50/900/7X are actually quite the opposite, they have reverse thrust *only* on the #2, while the #1 and 3 lack reversers. The center bucket reverser on the 900 produces a very distinctive wheezing/coughing/backfiring sound on the 900s when it's activated. You're right about the Tu-154 though, just a straight pipe there.

The Yak-40 has a T/R system similar to the Falcons, with the bucket reverser on the #2 engine only. The Yak-42 doesn't appear to have thrust reverse at all. The HS.121 lacks T/R on the #2 engine though.

A brief recap:

T/Rs on all three: B727, DC-10, MD-11, L-1011

T/Rs on #2 Only: Falcon Series, YAK-42

T/Rs on #1 and #3 only: Tu-154, HS.121



I reject your reality and substitute my own...
User currently offlineChamonix From France, joined Mar 2011, 346 posts, RR: 1
Reply 5, posted (3 years 4 months 3 weeks 3 days 1 hour ago) and read 2788 times:
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Quoting tb727 (Reply 2):
Tay engines

Do you mean tail?
What is Tay?
Many thanks!


User currently offlineairforceatc944 From United States of America, joined Aug 2008, 9 posts, RR: 0
Reply 6, posted (3 years 4 months 3 weeks 3 days 1 hour ago) and read 2786 times:

Quoting 26point2 (Reply 3):

  

as does the 7x


User currently offline26point2 From United States of America, joined Mar 2010, 820 posts, RR: 0
Reply 7, posted (3 years 4 months 3 weeks 3 days ago) and read 2765 times:

Quoting Chamonix (Reply 5):
Do you mean tail?
What is Tay?

Rolls Royce Tay engines. Bypass Turbo Fan derived from R/R Spey.


User currently offlineCargolex From United States of America, joined Apr 2010, 1263 posts, RR: 8
Reply 8, posted (3 years 4 months 3 weeks 3 days ago) and read 2763 times:

Quote:
What is Tay?

He means the Rolls-Royce Tay engine, used on the Gulfstream IV, Fokker 70/100, and a few re-engined 727-100s.

There was also a Tay conversion for the BAC 1-11 from the same company (Dee Howard engineering), but only two were actually converted. By the time it was ready, not many people wanted the 1-11 anymore and it wasn't suitable for freighter conversion.

EDIT - I see I've been beaten to the punch!

[Edited 2011-04-08 08:54:36]

User currently offlineChamonix From France, joined Mar 2011, 346 posts, RR: 1
Reply 9, posted (3 years 4 months 3 weeks 2 days 23 hours ago) and read 2719 times:
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Tay must be a river following RR nomenclature.
Only RB (Barnoldswick) and Merlin were the exceptions - hazarding a guess.

[Edited 2011-04-08 10:08:57]
The name issue:
RR Trent (by Kimon Jan 28 2010 in Tech Ops)


[Edited 2011-04-08 10:26:10]

User currently offlineFlyMKG From United States of America, joined Jan 2005, 184 posts, RR: 1
Reply 10, posted (3 years 4 months 3 weeks 2 days 19 hours ago) and read 2617 times:

We have one 727-200 at my company with the number 2 reverser removed. It has the Dugan Quiet Wing mod with JT8D-15 engines on it. Part of meeting noise compliance was to remove the reverser off of two and put a long stove pipe extension on it. It looks like this:
View Large View Medium
Click here for bigger photo!

Photo © Dana Low



FlyMKG



Essential Power, Operating Generator.
User currently offlineChamonix From France, joined Mar 2011, 346 posts, RR: 1
Reply 11, posted (3 years 4 months 3 weeks 2 days 19 hours ago) and read 2599 times:
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Would that be a 727-ADV (Advanced)?

Quoting FlyMKG (Reply 10):
We have one 727-200 at my company


[Edited 2011-04-08 14:40:02]

User currently offlineViscount724 From Switzerland, joined Oct 2006, 25170 posts, RR: 22
Reply 12, posted (3 years 4 months 3 weeks 2 days 18 hours ago) and read 2586 times:

Quoting Chamonix (Reply 9):
Tay must be a river following RR nomenclature.

It's the longest river in Scotland.


User currently offlinejetlagged From United Kingdom, joined Jan 2005, 2546 posts, RR: 24
Reply 13, posted (3 years 4 months 3 weeks 2 days 18 hours ago) and read 2562 times:

Quoting Chamonix (Reply 9):
Tay must be a river following RR nomenclature.
Only RB (Barnoldswick) and Merlin were the exceptions - hazarding a guess.

RR named their piston engines after birds of prey, so the Merlin is not an exception.

RR turbine engines have a model number and a river name, though the RB211 never got named for some reason. The Tay, for example, had the model number RB183.



The glass isn't half empty, or half full, it's twice as big as it needs to be.
User currently offlineFlyMKG From United States of America, joined Jan 2005, 184 posts, RR: 1
Reply 14, posted (3 years 4 months 3 weeks 2 days 18 hours ago) and read 2559 times:

Quoting Chamonix (Reply 11):
Would that be a 727-ADV (Advanced)?

We have another -200 with the Dugan Quiet Wing and JT8D-9s that still has the #2 reverser. The -9 equiped airplane used to have -15s in a previous life so it could just be a matter of which engines are on the frame.

FlyMKG



Essential Power, Operating Generator.
User currently offlineNorthwest727 From United States of America, joined Jul 2005, 491 posts, RR: 0
Reply 15, posted (3 years 4 months 3 weeks 2 days 2 hours ago) and read 2423 times:

Quoting 26point2 (Reply 3):
This is wrong, it's the other way around..... Dassault Falcon 50/900 ONLY has T/R on #2 engine. No T/R on #s 1 & 3.
Quoting KPWMSpotter (Reply 4):
From what I recall, the Falcon 50/900/7X are actually quite the opposite, they have reverse thrust *only* on the #2, while the #1 and 3 lack reversers. The center bucket reverser on the 900 produces a very distinctive wheezing/coughing/backfiring sound on the 900s when it's activated. You're right about the Tu-154 though, just a straight pipe there.

Sorry, my mistake, you guys are correct.


User currently offlineKELPkid From United States of America, joined Nov 2005, 6372 posts, RR: 3
Reply 16, posted (3 years 4 months 3 weeks 1 day 22 hours ago) and read 2366 times:

Quoting jetlagged (Reply 13):
RR turbine engines have a model number and a river name, though the RB211 never got named for some reason. The Tay, for example, had the model number RB183.

Well, as I understand it, the Trents share much (architecturally) with the RB.211, so it kind of sort of got a name...   I know that there are probably close to zero interchangeable parts between any RB.211's and any Trents, though.



Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlinetb727 From United States of America, joined Jun 2005, 1588 posts, RR: 9
Reply 17, posted (3 years 4 months 3 weeks 1 day 18 hours ago) and read 2297 times:

Quoting FlyMKG (Reply 14):
We have another -200 with the Dugan Quiet Wing and JT8D-9s that still has the #2 reverser. The -9 equiped airplane used to have -15s in a previous life so it could just be a matter of which engines are on the frame.

Just curious, what engines you have on your -100, -9's?



Too lazy to work, too scared to steal!
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