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Pondskater

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Viewing 15 posts - 331 through 345 (of 937 total)
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  • in reply to: A poem as we approach D +65 #1909264
    Pondskater
    Participant

    Thanks Moggy, powerful sentiment. Could have been written yesterday not 25 years ago.

    I might dig out my old video tape of A Foreign Field (Alec Guiness and Leo McKern) over the weekend. Marvellous poignant old film.

    Or perhaps some Keith Douglas poetry, who was, of course, killed in Normandy.

    in reply to: AF447 (Merged) #540090
    Pondskater
    Participant

    Maybe computer experts can advise on the quantity of data (per aircraft, per airline or for the whole industry) the cost of the satellite links to transmit that and whether those links could handle the volumes of data. [EDIT I see Bmused already has)

    Clearly the issues of capacity and costs do not prevent maintenance messages, but these are occasional and small.

    An earlier suggestion on here that occasional position reports could be transmitted to assist in those areas with no, or poor, radar coverage, is an interesting one.

    in reply to: AF447 (Merged) #540118
    Pondskater
    Participant

    Wow that throws a new spanner in the works unless this is a sign on a mid-air collision with 2 debris fields?
    Either way it’ll give conspiracy nuts something to feed on.

    The debris they’ve recovered include buoys, a wooden pallet and other ship debris. Perhaps AF447 collided with a container ship in mid air?

    back to square one it seems.

    Quite. With no wreckage yet and little substantial since the ACARS signal, there is little to feed the media’s desire to write something fresh, so I would expect to see some more fanciful reporting coming out.

    However, one of the better written (less sensational) ones is from the New York Times which notes a warning to Airbus operators to follow procedures if inconsistencies in speed readouts are seen:
    New York Times: Clues Point to Speed Issues in Air France Crash

    in reply to: AF447 (Merged) #540303
    Pondskater
    Participant

    Are all the Airbus air-crafts un-flyble in the event of a total electrical failure (due to the loss of fly-by-wire mechanism).

    Is’nt the fly-by-wire system in modern airliners just for pilot-aid (keeping the AC with in boundaries of safe maneuvering). It’s failure should not render the AC in-operable per se.

    There is a flaw in your concern here is that you ask “what if it breaks”

    You should ask “what if they all break at once” there being multiple systems designed to keep the plane working if one or more go down.

    I suspose the problem is that we all have buggy computers at home which we don’t entirely trust (Thank you Bill Gates) but aircraft have to be more reliable and have to have redundancy built in. I saw somewhere triple redundancy mentioned – even down to having three pilots as part of the control system.

    Something big, and terrible happened to AF447.

    For more on fly by wire this might be useful:
    http://personales.upv.es/juaruiga/teaching/TFC/Material/Trabajos/AIRBUS.PDF

    in reply to: AF447 (Merged) #540570
    Pondskater
    Participant

    Looking at what is being SUSPECTED…

    Could this have been a similar accident to that of Southern 242 in 1977?

    No. 242 was between 14,000 and 17,000 feet when it entered a thunderstorm and encountered “a massive amount of water and hail”. AF447 was at 35,000 feet.

    I posted it before but see:
    http://www.weathergraphics.com/tim/af447/
    where hail is discussed as being not being very likely at that level in that type of storm.

    That didn’t take me long and wouldn’t have taken you long to work out either

    in reply to: History GCSE today – Discuss #1224740
    Pondskater
    Participant

    History is always tough at that age. He has my sympathies, just don’t let him read this thread in case he starts questioning his replies. He’s been taught how to answer that exam, we haven’t.

    Good question though. Did it really say “Britain” and not “Allied Forces”? D-Day was as an Allied endeavour

    Battle of the Atlantic was a constant feature of WWII but to the question of how it contributed to defeat, I was suggest that initially it contributed to Britain’s survival, only later with some successes against the u-boats allowing easier movement of troops across the Atlantic for training in north America and allowing the US to send large numbers of troops.

    I can see the point about Bomber Command taking the battle to Germany but what about the military industrialisation of Britain? The conscription of women from Dec 1941 and the massive expansion of armaments production enabled Britain to be ready for D-Day in 1944. But then that story is more about politics than action.;)

    in reply to: AF447 (Merged) #541564
    Pondskater
    Participant

    And the ACARS system was powered when it sent the maintenance messages giving the evidence of faults developing.

    in reply to: AF447 (Merged) #541784
    Pondskater
    Participant

    I suggest two ways threads such as this can help and one thing that I dislike and I get told to go away. Curious response.

    Anyway, here’s some fact-based analysis of the met conditions and how it may have affected the flight:

    http://www.weathergraphics.com/tim/af447/

    in reply to: AF447 (Merged) #541808
    Pondskater
    Participant

    But surely that’s the point? None of you are experts! I fail to see how this kind of discussion on what happened is useful to anyone other than for the entertainment of those taking part.

    I share your disquiet Kev. You might be more comfortable reading the thread over of Pprune. There are a number of Airbus drivers over there discussing what might have happened, discussing risks and how they can be reduced. In their case, that is a professional safety discussion which might help us all next time we’re on one of their flights

    When something terrible happens people need to talk. Discussing how to be safer or the chance to share the latest information (or indeed speculation) from official sources such as Air France are two reasons for having such threads. I can do without uninformed speculation.

    in reply to: Where did this float come from? #1231868
    Pondskater
    Participant

    Right, I’ve now found the pic that made me think of this thread again.

    This was labelled as a Grahame White float plane. What struck me were the number of struts on the float and, for a WWI era float, the long streamlined design.

    http://i212.photobucket.com/albums/cc106/pondskater/GrahameWhitefloatplane.jpg

    Also, the Wight Type 840, which has a multiple stepped hull but again more struts than normal on a seaplane.

    http://i212.photobucket.com/albums/cc106/pondskater/1028RNAS.jpg

    There is also an article on the Wight Seaplane in Flight: http://www.flightglobal.com/pdfarchive/view/1914/1914%20-%200336.html

    These are the closest that I’ve seen to anything resembling the mystery float. I don’t think they are conclusive by any means but intriguing.

    Allan

    in reply to: Halifax MKIII plans #1231942
    Pondskater
    Participant

    Lifting 5701Lb (inclusive of two crew and fuel) with only 360HP at 50% scale would seem to suggest 600HP will be suitable for 60% (on a crude equivalence of size between the two types), and composites might provide more strength at a lower weight than timber?, (although the link above suggests the S-31 had a metal monoque fuselage rather than being all wood?)

    I wonder if drawings of the S31 survive from Shorts somewhere?, maybe someone can do a 60% Stirling as well?

    The S.31 was all wooden and designed to test the aerodynamics of the Stirling at half scale. Shorts had become somewhat adept at trialing big aircraft with half scale models, particularly using a Short Scion fitted with a half scale flying boat hull to test hydrodynamics as well, getting more accurate results than with tank test models.

    I’ll leave it to the aerodynamisists to explain how to scale an aircraft down to still give the same aerodynamic performance. The Pobjoys on the S.31 were initially 90hp and later 115hp (Niagara IVs).

    I very much doubt any drawings survive but those Rotec radials would be an ideal start point for a recreation. Good luck with the Halifax.

    in reply to: Where did this float come from? #1231950
    Pondskater
    Participant

    That’s funny, I was just thinking about this again a couple of weeks ago.

    Sorry to disappoint but it is not from the Falcon glider. It was built as a flying boat with the fuselage of the glider modified to the boat hull and only tiny wing tip floats. The glider survives with the Steamboat Museum (still closed :()

    Glider in flight:
    http://i212.photobucket.com/albums/cc106/pondskater/235SBW.jpg

    Another thread on flying boat gliders developed a discussion about the Falcon Glider here: http://forum.keypublishing.co.uk/showthread.php?t=67030

    I’ll dig out some other pics in a little while

    Allan

    in reply to: General Discussion #340081
    Pondskater
    Participant

    I had similar experiences with Plusnet/Force9 and moved on.

    You might want to look into O2. If they have “unbundled” your local phone exchange and you’re in their network then you get a good deal from them. And if you are already an O2 customer, then you get an even better deal, or you could use it as an excuse to get an iPhone. 😉

    Have a look at: http://broadband.o2.co.uk/home/index.jsp

    in reply to: Get connected #1912189
    Pondskater
    Participant

    I had similar experiences with Plusnet/Force9 and moved on.

    You might want to look into O2. If they have “unbundled” your local phone exchange and you’re in their network then you get a good deal from them. And if you are already an O2 customer, then you get an even better deal, or you could use it as an excuse to get an iPhone. 😉

    Have a look at: http://broadband.o2.co.uk/home/index.jsp

    in reply to: Happy 100 Years Fleet Air Arm #1180569
    Pondskater
    Participant

    We can help with that:

    First flight from a moving ship (HMS Hibernia) of the Royal Navy. Lt C R Samson on 2 May 1912 in a Short S.38 biplane, Naval Biplane number 2. Not a float plane, the items under the wings are flotation bags to enable the aircraft to land at sea in an emergency only.

    http://i212.photobucket.com/albums/cc106/pondskater/8482May1912inS38.jpg

    Early success was the Cuxhaven raid on Christmas Day 1914. 119 was a Short Type 81 Folder which took part in the raid and then below is a rather fanciful artists impression of the events.

    http://i212.photobucket.com/albums/cc106/pondskater/970SBR.jpg

    http://i212.photobucket.com/albums/cc106/pondskater/1526-1.jpg

    And the Short Type 184 – the first RNAS aircraft to drop a torpedo, and the first in the world to attack an enemy ship with an air dropped torpedo:

    http://i212.photobucket.com/albums/cc106/pondskater/973SBR.jpg

Viewing 15 posts - 331 through 345 (of 937 total)