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Search: Posts Made By: engineer07
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Forum: Tech Log
7th Mar 2009, 13:55
Replies: 53
Views: 16,158
Posted By engineer07

Nitrogen in Tyres

There are several reasons why nitrogen is used, most of which have already been mentioned in other posts
- It is 'dry' therefore expands less with changes in temperature - so as tyre heats up during...
Forum: Spectators Balcony (Spotters Corner)
31st Jan 2009, 19:12
Replies: 38
Views: 4,352
Posted By engineer07

I agree the 747 is past it. I am certain you...

I agree the 747 is past it. I am certain you will find that Lufthansa has a clause in their contract that they will not take the 747-8I unless other 'substantial' carriers order it - so yes it looks...
Forum: Spectators Balcony (Spotters Corner)
10th Oct 2008, 08:31
Replies: 54
Views: 16,019
Posted By engineer07

armchairpilot You have obviously not flown...

armchairpilot

You have obviously not flown on the A380 yet ? Especially on the upper deck in businness class the A380 is remarquable - very quiet and very comfortable. I am pretty sure that the...
Forum: Spectators Balcony (Spotters Corner)
9th Oct 2008, 15:52
Replies: 54
Views: 16,019
Posted By engineer07

Dysag, Well said ! Even with B787...

Dysag,

Well said !

Even with B787 engines the B747 will still be an aircraft designed to safety standards from 40 years ago with a noisy cramped cabin. None of this really matters for a...
Forum: Tech Log
9th Oct 2008, 13:11
Replies: 13
Views: 3,686
Posted By engineer07

The problem with ice on the outer tank upper...

The problem with ice on the outer tank upper surface is easily solved. In fact the Outer Tk's should be empty at landing as an Outer -> Inner Xfer should be done when RTD (Remaining Time to...
Forum: Tech Log
24th Aug 2008, 07:58
Replies: 6
Views: 3,869
Posted By engineer07

A380 Landing Gear

Vibes,

The bogie of the landing gear is positioned when the gear is extended by a pitch trimmer (hydraulic actuator). On the A330/340 a/c the Main (Wing) landing gears are tilted 'tail down' as...
Forum: Tech Log
18th Aug 2008, 12:24
Replies: 22
Views: 9,126
Posted By engineer07

Payload Comparision

One thing to take into account when comparing the Max payloads of the B777 and the A380 is that the A380 has a small cargo hold compared with it's cabin space. On long routes the cargo hold will be...
Forum: Tech Log
17th Aug 2008, 10:36
Replies: 22
Views: 9,126
Posted By engineer07

Payload

Technically you are right that seats, showers, etc are not usually considered as payload. But as you say Payload is what 'Pays'. The reason why pax choose to fly on the A380 (and belive me they do...
Forum: Tech Log
16th Aug 2008, 09:18
Replies: 22
Views: 9,126
Posted By engineer07

Payload

Pool,You are absolutely right - it's about PAYLOAD. An a/c manufacturer builds the airframe and the airline decides what to carry in it. Everything they decide to carry in it is PAYLOAD - be it...
Forum: Middle East
15th Aug 2008, 16:01
Replies: 37
Views: 6,241
Posted By engineer07

A380 Rudder Activity

The reason you see a lot of rudder activity on approach (it's the FBW system commanding it not the pilot via the pedals) is that the A380 has different control law in Yaw to previous Airbus'. In...
Forum: Tech Log
15th Aug 2008, 10:33
Replies: 22
Views: 9,126
Posted By engineer07

Sorry, but it's you that is comparing apples and...

Sorry, but it's you that is comparing apples and pears !!

The EK B777-300's do have 42 'business' class seats - but they are 7 abreast 'business class'. In the REAL SQ business class they are 4...
Forum: Tech Log
13th Aug 2008, 08:33
Replies: 22
Views: 9,126
Posted By engineer07

Take a look at the SQ 777-300ER's - which are...

Take a look at the SQ 777-300ER's - which are configured like the A380 - with the same business class seats (42 vs 60 on the A380) and are operated on similar long haul routes (SIN - FRA & CDG).
...
Forum: Tech Log
12th Aug 2008, 17:41
Replies: 22
Views: 9,126
Posted By engineer07

Sorry, but MEW is quoted by Airbus as 276t...

Sorry, but MEW is quoted by Airbus as 276t (typical empty weight) - that gives a Max payload of 90t. Of course in service the real OEW depends heavily on the airline and the weight they choose to...
Forum: Tech Log
12th Aug 2008, 07:59
Replies: 22
Views: 9,126
Posted By engineer07

you asked for it so I will correct you ! ...

you asked for it so I will correct you !

the max payload of the A380 is NOT 66t

the comparison is a false one as comparing a 777-300 at 360 seats and an A380 at 489 seats is not comparing...
Forum: Spectators Balcony (Spotters Corner)
8th Jul 2008, 17:09
Replies: 23
Views: 5,649
Posted By engineer07

Concorde in Toulouse There is one very well...

Concorde in Toulouse

There is one very well preserved ex A-F example here in Toulouse.
Forum: Tech Log
1st Jul 2008, 10:55
Replies: 23
Views: 3,790
Posted By engineer07

Well actually they don't all approach at high AoA...

Well actually they don't all approach at high AoA ! Take the A380 as an example - it has a high wing sweep, but approaches at very low AoA - but this a/c has a very big wing. The other reason why a...
Forum: Spectators Balcony (Spotters Corner)
21st Jun 2008, 17:51
Replies: 32
Views: 2,377
Posted By engineer07

I never cease to be amazed at the negative...

I never cease to be amazed at the negative reaction to anything where good old Boeing loses. In this case the miscalculated - they thought they could sell the US taxpayer a 1970's design and keep...
Forum: Flight Testing
21st Jun 2008, 17:34
Replies: 4
Views: 1,602
Posted By engineer07

The A340-600 has accelerometers installed in the...

The A340-600 has accelerometers installed in the outer engine pylons. They are used by the flight control laws (through small aileron defelections) to damp a vertical bending mode of the wing (long...
Forum: Flight Testing
7th Mar 2008, 07:59
Replies: 9
Views: 3,547
Posted By engineer07

all this talk about the limits being related to...

all this talk about the limits being related to a/c structure is simply rubbish ! Wings do not become too rigid !!!

the limits applied are quite simply related to the min temperature at which...
Showing results 1 to 19 of 19


 
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