dark light

wysiwyg

Forum Replies Created

Viewing 15 posts - 3,301 through 3,315 (of 3,331 total)
  • Author
    Posts
  • in reply to: The ultimate view? #743136
    wysiwyg
    Participant

    RE: The ultimate view?

    I did an hour in a Caravelle sim as part of the selection process for my current employer and have to say that it was absolutely delightful to fly, especially when compared to the Trident sim. What type of aircraft is the camera ship?

    in reply to: I Give Up !!! #743971
    wysiwyg
    Participant

    RE: I Give Up !!!

    Exactly, prevention is the best cure!

    in reply to: Pic Of The Day-KLM B747 #744159
    wysiwyg
    Participant

    RE: Pic Of The Day-KLM B747

    Saab – I guess living in Guernsey, no one knows fog like you do! Chatting to a mate of mine yesterday who still flies Aurigny Saabs who tells me you have had a fair amount of fog in the last couple of weeks.

    in reply to: not sure really… #744705
    wysiwyg
    Participant

    RE: not sure really…

    Not at all a stupid question. Here goes (in reverse order) –

    Q2 – Yes (but then it is my job!)

    Q1 – Boeing (and Airbus) aircraft have a starter motor attached to the side of each engine. Unlike your car, instead of using electricity to turn them (although most turboprops use electric starters) they use bleed air. Most commonly this is taken from the APU but if the APU is unserviceable you can plug in ‘air start units’ into the underneath of the aircraft. We have 3 plug in points on the underside of the 757 but need at least 2 air starters attached to give enough ooomph. Assuming the APU is available (and the APU bleed source is switched on) you turn the relevant (left or right) start switch to the start position and bleed air is directed from the APU to the starter motor. This will spin up the spools in the engine. When a certain rotational speed is reached the fuel selector is turned on which not only throws in fuel but also turns on the igniters. When the engine fires the engine speed will accelerate to ground idle and the starter motor and the igniters will automatically switch off. In a jet engine there is continuous combustion so there is no need to have the igniters switched on all the time. The next engine can either be started using APU bleed air again or using bleed air from the first engine you started.
    The most modern aircraft have fully automatic start up sequences so having hit the start button the fuel and ignition would engage themselves at the right time. Also I am led to believe that the 777 has such a powerful APU that it can start both engines at the same time without even having to turn off the air conditioning!

    Hope that helps.

    in reply to: ETOPS #744710
    wysiwyg
    Participant

    RE: ETOPS

    Remember that maps are flat while the earth is a sphere (well nearly!). The closest route from A to B is called a great circle route. Flights from East to West or vice versa appear curved (towards the closest pole) when drawn on a 2D map, hence why North Atlantic crossings appear to curve past Iceland or Greenland.

    ETOPS – It is a bit more complicated than a type having an approval and that’s that. Each individual aircraft must have an approval (which requires a higher level of equipment and maintenance) so you may find that some operators may only keep a proportion of their fleet ETOPS approved to keep costs down. Each individual operator has to apply for their own ETOPS approval, my company is currently 138 minutes but hoping to get that extended to 180. Also, the crew have to be ETOPS trained to operate on behalf of their company.

    in reply to: guess the airline! #745605
    wysiwyg
    Participant

    RE: guess the airline!

    Gut feeling says Kabir is on the ball!

    in reply to: Landing on water #745608
    wysiwyg
    Participant

    RE: Landing on water

    No there aren’t but in reality you are more interested in trying to get an engine restarted.

    in reply to: I Give Up !!! #745615
    wysiwyg
    Participant

    RE: I Give Up !!!

    I frequently fly Boeing twins over sizeable expanses of water and few things scare me more than the prospect of an onboard fire. While it may not have started from a cigarette, read the report on the Saudia TriStar if you don’t believe me. By the way, my wife is ex-Saudia cabin crew and lost a friend on that flight.

    in reply to: Pic Of The Day-Condensiation #745985
    wysiwyg
    Participant

    RE: Pic Of The Day-Condensiation

    The pressure reduction over the upper surface of the wing causes a temperature change and the moisture in the air condenses into a localised patch of fog.

    in reply to: Move To Safeguard Regional…. #746341
    wysiwyg
    Participant

    RE: Move To Safeguard Regional

    Yes the current arrangements are awkward but the authoroities deem them to be adequate. At the end of the day it’s bums on seats that count and regionals just don’t offer the opportunities. I wish things were different, much as I love the Boeing, I wouldn’t sniff at a Do728 command out of Heathrow (as I live just 3 miles away).

    in reply to: G-MIMA #746342
    wysiwyg
    Participant

    RE: RE%3A G-MIMA

    The picture above is a D model Beech 1900 which has significantly more headroom than the C model. Makes it look damn ugly though!

    in reply to: Move To Safeguard Regional…. #647589
    wysiwyg
    Participant

    RE: Move To Safeguard Regional

    I really wish it would happen but LHR slots are so ultimately desirable that they will never be given to the regionals. Over the last few years we have seen countless regionals pushed out (Brymon, KLMuk, etc.) and how many have set up? None. While I know many regional operators now use jet equipment you almost never see a turboprop at LHR anymore.
    Heathrow generates large amounts of its income from the number of passengers it pushes through. A heavy jet using a slot will generate much more revenue than if the slot had been given to a 50 seat turboprop/jet, even if there are subsidies involved.

    in reply to: Landing on water #647593
    wysiwyg
    Participant

    RE: Landing on water

    From 757/767 QRH –

    Transmit distress signal
    Advise crew and passengers

    When below 5000′ –
    Ground prox gear override (stops the aircraft shouting ‘Too low, gear’ at you!)
    Ground prox terrain override (stops it shouting ‘Too low, terrain’)
    Air conditioning packs off (stops the aircraft being pressurised any further too allow door opening)
    Close outflow valve (this regulates the pressurisation but closing it stops the water getting in)
    No Smoking and Seatbelt signs on

    On final approach –
    Warn the cabin crew and pasengers
    Ensure gear is UP
    Select flap 30
    Hold airspeed at Vref30 until impact and flare to achieve minimum rate of descent at touchdown.

    in reply to: Anyone know the best day for t #647596
    wysiwyg
    Participant

    RE: Anyone know the best day f

    Apologies Bhoy, Condor seem to be jumping the gun! JMC aircraft hit the paint shop in November.

    in reply to: Pic of the day #647599
    wysiwyg
    Participant

    RE: Pic of the day

    Boeing took a big interest in the repair process for this aircraft as it is one of the highest hours/cycles 757’s in existance.

Viewing 15 posts - 3,301 through 3,315 (of 3,331 total)