Search found 624 matches

  • 1
  • 2
  • 3
  • 4
  • 5
  • 13
by Balerit
Fri Apr 27, 2018 3:00 pm
Forum: Military Aviation & Space Flight
Topic: India calls quits to 5th-gen FGFA collaboration with Russia after 11 years
Replies: 37
Views: 5048

Re: India calls quits to 5th-gen FGFA collaboration with Russia after 11 years

The SU37 can supercruise, what makes you think the new engine can't?

Jump to post
by Balerit
Fri Apr 27, 2018 7:58 am
Forum: Military Aviation & Space Flight
Topic: India calls quits to 5th-gen FGFA collaboration with Russia after 11 years
Replies: 37
Views: 5048

Re: India calls quits to 5th-gen FGFA collaboration with Russia after 11 years

India wanted the all the test data and other propriety information which Russia wasn't willing to give away. Russia then said that they could have certain of the information and technology for an extra 7 Billion, I think, and this is why India balked and decided to walk away. I think the same appli...

Jump to post
by Balerit
Thu Apr 26, 2018 7:29 pm
Forum: Military Aviation & Space Flight
Topic: India calls quits to 5th-gen FGFA collaboration with Russia after 11 years
Replies: 37
Views: 5048

Re: India calls quits to 5th-gen FGFA collaboration with Russia after 11 years

India wanted the all the test data and other propriety information which Russia wasn't willing to give away. Russia then said that they could have certain of the information and technology for an extra 7 Billion, I think, and this is why India balked and decided to walk away. I think the same applie...

Jump to post
by Balerit
Thu Apr 26, 2018 3:34 pm
Forum: Civil Aviation
Topic: Airbus A380 'fifth' contrail? Possible fuel dumping?
Replies: 11
Views: 4159

Re: Airbus A380 'fifth' contrail? Possible fuel dumping?

Great catch, something you don't see everyday.

Jump to post
by Balerit
Wed Apr 25, 2018 10:55 am
Forum: Civil Aviation
Topic: Are modern aircraft engines really becoming less reliable?
Replies: 34
Views: 5647

Re: Are modern aircraft engines really becoming less reliable?

This reminds me of Porsche, BMW and Jaguar who had changed over to Nikasil for lining their aluminium engine blocks. After years of testing, they made it standard on commercial vehicles. Suddenly within a short period they all suffered with problems to the Nikasil coating and they discovered that wh...

Jump to post
by Balerit
Tue Apr 24, 2018 6:35 pm
Forum: Civil Aviation
Topic: Are modern aircraft engines really becoming less reliable?
Replies: 34
Views: 5647

Re: Are modern aircraft engines really becoming less reliable?

I put it down to two things: A) pushing an old technology to the maximum limit and B) The rush or increase in production rates v R&D. In the first instance it is like comparing, say, your average motor car to a topline dragster. In the latter case it is common to see spectacular engine failures...

Jump to post
by Balerit
Tue Apr 24, 2018 9:45 am
Forum: Civil Aviation
Topic: Are modern aircraft engines really becoming less reliable?
Replies: 34
Views: 5647

Re: Are modern aircraft engines really becoming less reliable?

I put it down to two things: A) pushing an old technology to the maximum limit and B) The rush or increase in production rates v R&D. In the first instance it is like comparing, say, your average motor car to a topline dragster. In the latter case it is common to see spectacular engine failures ...

Jump to post
by Balerit
Sun Apr 22, 2018 1:42 pm
Forum: Technical/Operations
Topic: Increased thrust close to rotation
Replies: 30
Views: 3246

Re: Increased thrust close to rotation

I echo the comments of Barney Captain above. Sometimes, a gut feeling tells you something is up. Simply go from flex thrust to max thrust. If you're wrong, the worst that can happen is you burned more fuel. I recall many years ago, taking off from YYZ in a full A321 for SFO, we used 33L, one of YYZ...

Jump to post
by Balerit
Sun Apr 22, 2018 1:26 pm
Forum: Civil Aviation
Topic: WN 1380 LGA-DAL emergency landing at PHL, 1 fatality
Replies: 720
Views: 129409

Re: WN 1380 LGA-DAL emergency landing at PHL, 1 fatality

Make the mask not stink, and people will comply. https://www.telegraph.co.uk/travel/travel-truths/truth-about-oxygen-masks-on-planes/ The mask is not there to smell like petunias, it there to save your LIFE ! you can always refuse to use it though and suffocate. Or, apparently, put it over your mou...

Jump to post
by Balerit
Sat Apr 21, 2018 8:43 am
Forum: Civil Aviation
Topic: WN 1380 LGA-DAL emergency landing at PHL, 1 fatality
Replies: 720
Views: 129409

Re: WN 1380 LGA-DAL emergency landing at PHL, 1 fatality

Southwest ran afoul of the FAA a few years ago for not complying with proper repairs on the skin lap joints of the classics. They were hit with a hefty 12 million dollar fine back then. If this goes down the same path in the investigation Southwest will have a lot of explaining to do about their ma...

Jump to post
by Balerit
Fri Apr 20, 2018 3:14 pm
Forum: Technical/Operations
Topic: Cargo hold
Replies: 10
Views: 1980

Re: Cargo hold

PanHAM wrote:
Courier bags, mail and last Minute cargo with, depeding on Airport 90/60 min and less cut off times


And diplomatic mail bags.

Jump to post
by Balerit
Fri Apr 20, 2018 3:09 pm
Forum: Technical/Operations
Topic: Increased thrust close to rotation
Replies: 30
Views: 3246

Re: Increased thrust close to rotation

If you notice as they hit pockets of damp air, the engine pitch changes due to the less dense air, especially after liftoff and the first retarding of the throttles but I suppose it could be a number of other things as well. The fact that you noticed means something did occur. A flight engineer once...

Jump to post
by Balerit
Fri Apr 20, 2018 11:40 am
Forum: Technical/Operations
Topic: Increased thrust close to rotation
Replies: 30
Views: 3246

Re: Increased thrust close to rotation

Listen to the sounds here especially the RR first up and tell us what you think - listen for the note changes and watch the inlet.

https://www.youtube.com/watch?v=vVD2NQbthgE

Jump to post
by Balerit
Fri Apr 20, 2018 8:27 am
Forum: Civil Aviation
Topic: ATL Delta A330-300 engine fire 4/18
Replies: 32
Views: 14451

Re: ATL Delta A330-300 engine fire 4/18

Also by pulling the fire handle, you isolate everything to and from the engine. BOTTLE DISCHARGE SWITCH IS UNCOVERED AND ARMED GENERATOR FIELD RELAY IS TRIPPED FUEL SHUT OFF TO THE ENGINE HYDRAULIC FLUID SHUT OFF TO THE PUMP ENGINE BLEED AIR SHUT OFF HYDRAULIC PUMP LOW-PRESSURE LIGHTS ARE DEACTIVATED.

Jump to post
by Balerit
Thu Apr 19, 2018 3:36 pm
Forum: Civil Aviation
Topic: ATL Delta A330-300 engine fire 4/18
Replies: 32
Views: 14451

Re: Breaking news: ATL Delta A330-300 engine fire

If I was sitting by the window, near or over the wing when this happened, i'd have to change my shorts ASAP. Well, that might be the case if you look at the footage actually shot: https://www.nu.nl/234037/video/vliegtuig-moet-noodlanding-maken-in-atlanta-door-brandende-motor.html I would indeed be ...

Jump to post
by Balerit
Thu Apr 12, 2018 6:10 pm
Forum: Technical/Operations
Topic: Did Early Turbojets Practice Reduced Thrust Takeoffs?
Replies: 30
Views: 3666

Re: Did Early Turbojets Practice Reduced Thrust Takeoffs?

Great description and I understand My point was there’s a tendency to describe an engine as ‘underpowered’ An engine can never be underpowered, it can have a relatively low thrust for its size and weight but that’s only an issue if it’s bolted to an airframe that is heavier than desired for the ins...

Jump to post
by Balerit
Thu Apr 12, 2018 8:24 am
Forum: Civil Aviation
Topic: Airbus A330neo Production/Delivery Thread 2018
Replies: 441
Views: 135592

Re: Airbus A330neo Production/Delivery Thread 2018

A330freak wrote:


What a handsome beast :)

Jump to post
by Balerit
Wed Apr 11, 2018 1:56 pm
Forum: Travel, Polls & Preferences
Topic: Flight of a lifetime
Replies: 0
Views: 929

Flight of a lifetime

Follow SAA Captain Flippie Vermeulen as he flies a Beech aircraft around the world taking Bristol balloonists Phil and Allie Dunnington and their fixed wing team as they will attempt to balloon in places where nobody has ever flown a hot air balloon before! http://onthebeech.blogspot.co.za/

Jump to post
by Balerit
Wed Apr 11, 2018 9:22 am
Forum: Civil Aviation
Topic: Airbus shelves A320neo-plus study
Replies: 314
Views: 44902

Re: Airbus shelves A320neo-plus study

This article smacks of disinformation, put out by either Boeing: to make Airbus look bad or Airbus themselves to force the Boeing 797 issue. :)

Jump to post
by Balerit
Tue Apr 10, 2018 12:08 pm
Forum: Technical/Operations
Topic: B707 Kueger Sequence
Replies: 6
Views: 1939

Re: B707 Kueger Sequence

They were hydraulic powered with their own actuators and I don't remember any sequence involved, it was possibly the hydraulic pressure that caused that.

Jump to post
by Balerit
Tue Apr 10, 2018 12:01 pm
Forum: Technical/Operations
Topic: Did Early Turbojets Practice Reduced Thrust Takeoffs?
Replies: 30
Views: 3666

Re: Did Early Turbojets Practice Reduced Thrust Takeoffs?

Pet peeve department The engines weren’t underpowered,the aircraft was ! I'm not sure what you are getting at but our Super B's with the JT9's were rated at about 41 000 lbs of thrust. The A300 's that we received came with CF 6's, rated at 50 000 lbs. The B747 was over engineered and over the cour...

Jump to post
by Balerit
Sun Apr 08, 2018 10:19 am
Forum: Technical/Operations
Topic: Did Early Turbojets Practice Reduced Thrust Takeoffs?
Replies: 30
Views: 3666

Re: Did Early Turbojets Practice Reduced Thrust Takeoffs?

All SAA's long haul take -offs from JNB in the early days were done with water injection, from the B707's right up till our JT9-7F's on the B747 SP's, those early P&W's were very under powered. Pet peeve department The engines weren’t underpowered,the aircraft was ! I'm not sure what you are ge...

Jump to post
by Balerit
Sun Apr 08, 2018 10:08 am
Forum: Technical/Operations
Topic: GFRP vs CFRP
Replies: 17
Views: 3436

Re: GFRP vs CFRP

Interesting thoughts Lightsaber, unfortunately I'm retired now so I not up to scratch on the very latest techniques but the Russians have some interesting manufacturing methods as well. Another thought comes to mind and that is the yacht building industry seems to be the leaders in this tech.

Jump to post
by Balerit
Sat Apr 07, 2018 7:28 pm
Forum: Technical/Operations
Topic: Did Early Turbojets Practice Reduced Thrust Takeoffs?
Replies: 30
Views: 3666

Re: Did Early Turbojets Practice Reduced Thrust Takeoffs?

All SAA's long haul take -offs from JNB in the early days were done with water injection, from the B707's right up till our JT9-7F's on the B747 SP's, those early P&W's were very under powered.

Jump to post
by Balerit
Sat Apr 07, 2018 7:13 pm
Forum: Technical/Operations
Topic: GFRP vs CFRP
Replies: 17
Views: 3436

Re: GFRP vs CFRP

We still use GFRP to mean glass fibre reinforcing and CFRP as carbon fibre reinforcing - also known as graphite. Kevlar is the trade name for a third reinforcing plastic that is known as a para-aramid synthetic fiber. Glare is a sandwich construction made up of sheets of fibre glass and aluminium bo...

Jump to post
by Balerit
Fri Apr 06, 2018 8:12 am
Forum: Technical/Operations
Topic: Did Early Turbojets Practice Reduced Thrust Takeoffs?
Replies: 30
Views: 3666

Re: Did Early Turbojets Practice Reduced Thrust Takeoffs?

The simple answer is no and in fact in those early days they had to augment power by using water injection especially with P&W engines.

Jump to post
by Balerit
Fri Apr 06, 2018 8:10 am
Forum: Technical/Operations
Topic: GFRP vs CFRP
Replies: 17
Views: 3436

Re: GFRP vs CFRP

The only thing about fibre glas construction is it is cheaper and less hazardous with regards to fumes during the manufacturing process otherwise carbon outperforms it in every other aspect.

Jump to post
by Balerit
Tue Apr 03, 2018 6:34 pm
Forum: Technical/Operations
Topic: Jet Engines "Backfiring"?
Replies: 8
Views: 2476

Re: Jet Engines "Backfiring"?

The term 'backfire' actually refers to an engine that blows back through the carburetor, especially if the timing is too far advanced. Unfortunately the public use this expression for a miss fire, which is unburnt fuel, due to a fouled plug, that accumulates in the exhaust and subsequently explodes ...

Jump to post
by Balerit
Sat Mar 31, 2018 2:36 pm
Forum: Civil Aviation
Topic: Airbus A321LR Seychelles to Toulouse Non-Stop 11 hours
Replies: 206
Views: 42393

Re: Airbus A321LR Seychelles to Toulouse Non-Stop 11 hours

@Tomcat Okay, point taken. They haven't changed the max weight because they are still testing the aircraft under diffe3rent conditions. There are still other tests to be done which will also give different figures but so far they are exceeding their expectations.

Jump to post
by Balerit
Sat Mar 31, 2018 1:45 pm
Forum: Civil Aviation
Topic: Airbus A321LR Seychelles to Toulouse Non-Stop 11 hours
Replies: 206
Views: 42393

Re: Airbus A321LR Seychelles to Toulouse Non-Stop 11 hours

http://www.air-journal.fr/2018-03-31-un-airbus-a321neo-lr-relie-les-seychelles-a-toulouse-sans-escale-5196706.html Look in the comments. Thanks for this. I don't want to be picky, but the said comment is a general statement about flight test aircraft, nothing specific about this flight. (I'm French...

Jump to post
by Balerit
Sat Mar 31, 2018 9:34 am
Forum: Civil Aviation
Topic: Airbus A321LR Seychelles to Toulouse Non-Stop 11 hours
Replies: 206
Views: 42393

Re: Airbus A321LR Seychelles to Toulouse Non-Stop 11 hours

And a more technical document: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0ahUKEwiz7r-Jn5baAhWNasAKHV9yBR8QFgguMAE&url=https%3A%2F%2Fwww.faa.gov%2Fregulations_policies%2Frulemaking%2Fcommittees%2Fdocuments%2Fmedia%2FAGAMwabT1-08271991.pdf&usg=...

Jump to post
by Balerit
Sat Mar 31, 2018 9:27 am
Forum: Civil Aviation
Topic: Airbus A321LR Seychelles to Toulouse Non-Stop 11 hours
Replies: 206
Views: 42393

Re: Airbus A321LR Seychelles to Toulouse Non-Stop 11 hours

They would use a document like this to determine pax weights, not just any old weight is used, there are strict guidelines. https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=11&ved=0ahUKEwjZvYaRnJbaAhUkKsAKHfEWCR8QFgh0MAo&url=https%3A%2F%2Fwww.faa.gov%2Fdocume...

Jump to post
by Balerit
Sat Mar 31, 2018 6:22 am
Forum: Civil Aviation
Topic: Airbus A321LR Seychelles to Toulouse Non-Stop 11 hours
Replies: 206
Views: 42393

Re: Airbus A321LR Seychelles to Toulouse Non-Stop 11 hours

What do they mean by "dummy passengers"? They carry water tanks on board in place of people. They can then fill the tanks with X amount of litres to simulate the number of pax for the intended flight. A350: https://i2.wp.com/flightchic.com/wp-content/uploads/2014/09/a350-xwb-msn2-flight-t...

Jump to post
by Balerit
Thu Mar 29, 2018 9:19 am
Forum: Civil Aviation
Topic: LH A350 New Colors - Hideous!
Replies: 264
Views: 37427

Re: LH A350 New Colors - Hideous!

Goodyear wrote:
The only way this livery can be saved is by adding yellow to the crane on the tail.


My thoughts too and also make the outer ring yellow.

Jump to post
by Balerit
Wed Mar 28, 2018 5:46 pm
Forum: Civil Aviation
Topic: RE: Planes collide at Ben Gurion
Replies: 4
Views: 2137

RE: Planes collide at Ben Gurion

Not sure why my comment didn't go through with the links I posted.

My question was: "Was this an ATC mix-up, as I don't see how they could end up in that position?"

Jump to post
by Balerit
Thu Mar 08, 2018 8:04 pm
Forum: Technical/Operations
Topic: LH A380 lower than usual pass over the Golden Gate Bridge
Replies: 9
Views: 2252

Re: LH A380 lower than usual pass over the Golden Gate Bridge

A couple of years ago I went to the Swartkops Airshow, South Africa, and the tower asked a Lufthansa A380 that was due in at JNB International at 0900 to do a low flypast to open the days proceedings and they obliged. I bet the passengers enjoyed it too. Haha I was at the same airshow. It looked co...

Jump to post
by Balerit
Thu Mar 08, 2018 5:03 pm
Forum: Technical/Operations
Topic: LH A380 lower than usual pass over the Golden Gate Bridge
Replies: 9
Views: 2252

Re: LH A380 lower than usual pass over the Golden Gate Bridge

A couple of years ago I went to the Swartkops Airshow, South Africa, and the tower asked a Lufthansa A380 that was due in at JNB International at 0900 to do a low flypast to open the days proceedings and they obliged. I bet the passengers enjoyed it too.

Jump to post
by Balerit
Thu Mar 08, 2018 4:39 pm
Forum: Technical/Operations
Topic: Who operated which engine on the A300?
Replies: 5
Views: 934

Re: Who operated which engine on the A300?

SAA operated A300B2k's, B4's and C4 with Cf 6-50 engines.

Jump to post
by Balerit
Fri Mar 02, 2018 2:58 pm
Forum: Military Aviation & Space Flight
Topic: New weapon. Russia.
Replies: 78
Views: 7142

Re: New weapon. Russia.

I'd guess it follows what the US had in mind with project "Pluto" and the "SLAM". ( links to WP pages further up ) unshielded reactor as heat source in a supersonic ramjet engine. In a way a low flying continuous neutron bomb. Over the top Schrecklichkeit. Military brass at the ...

Jump to post
by Balerit
Fri Mar 02, 2018 7:45 am
Forum: Technical/Operations
Topic: 747-300 engine rattle
Replies: 26
Views: 3012

Re: 747-300 engine rattle

Thank you both for your replies. So is this a feature of a lot of aircraft engines then, or specific to the engines on that plane? It was a feature of a great many turbofan engines of that era. The RB-211 did it, the CF-6 did it, the PW2000 and PW4000 did it. Each fan blade had a certain amount of ...

Jump to post
by Balerit
Thu Mar 01, 2018 11:15 am
Forum: Civil Aviation
Topic: Airbus Beluga XL Production Thread
Replies: 287
Views: 73687

Re: Airbus Beluga XL Production Thread

I'd imagine that the next Beluga will be based on the A380.

Jump to post
by Balerit
Thu Mar 01, 2018 10:55 am
Forum: Technical/Operations
Topic: 747-300 engine rattle
Replies: 26
Views: 3012

Re: 747-300 engine rattle

A time came where we had to put Molykote G on the part span abutments on return to home base, it was a battle to stop the fan especially in stiff breezes.. Don't know why, but I really disliked doing that task. As for stopping the fan, put on a pair of good gloves and "hug" the spinner un...

Jump to post
by Balerit
Wed Feb 28, 2018 6:42 pm
Forum: Technical/Operations
Topic: 747-300 engine rattle
Replies: 26
Views: 3012

Re: 747-300 engine rattle

A time came where we had to put Molykote G on the part span abutments on return to home base, it was a battle to stop the fan especially in stiff breezes..

Jump to post
by Balerit
Sat Feb 24, 2018 3:52 pm
Forum: Technical/Operations
Topic: 747-200 wing vs -300 wing
Replies: 12
Views: 2388

Re: 747-200 wing vs -300 wing

We had serious issues on our -300's at SAA, with the inboard engines stalling and throwing fan blades due to that extended 'hump'. P&W sent out a team to investigate the problem but I don't remember what they came up with to cure the problem.

Jump to post
by Balerit
Sat Feb 24, 2018 3:43 pm
Forum: Technical/Operations
Topic: Potable water ex-CPT?
Replies: 18
Views: 3343

Re: Potable water ex-CPT?

Every local citizen going to visit Cape Town, takes water with them. Just had two friends go there for a week or so and they took about thirty 5L bottles with them.

Jump to post
  • 1
  • 2
  • 3
  • 4
  • 5
  • 13