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Allison Johnson

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Viewing 15 posts - 76 through 90 (of 452 total)
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  • in reply to: Fossil Fuels v's Alternative Energy #1949270
    Allison Johnson
    Participant

    Impractical for now. You’d need to put a lot of mass into orbit, and the current price to place items in orbit is pretty damn high. Until we find a cheaper method, things like this are going to remain pipe dreams.

    As I said, it was a sci-fi program. Good idea though.

    Ali 🙂

    in reply to: Bader – The TV Programme #1318878
    Allison Johnson
    Participant

    I’ve never made a parachute jump myself but an old mate of mine now sadly deceased had made a number of descents on WW2 parachutes and told stories about the damage done to the more delicate parts of man which made my eyes water!!!

    The missuse of the legstraps….. Hmmmmmm….. Don’t have that problem myself but I have heard the instructors telling male students to be careful as they really don’t want to nip anything in their leg straps they may want to use later. I had a friend who caught something and they took him away in an ambulance. He was a freefaller and slowing down from 120 mph on your bits doesn’t sound like too much fun. 😮 😮 😮 😮 😮

    Ali

    in reply to: Bader – The TV Programme #1318917
    Allison Johnson
    Participant

    I think you are applying the actions of experienced jumpers to pilots who are making their first ever jump, solo and in mid-battle.

    They’ll pull that ring just as quickly as they can.

    I read one combat memoir, though this time from a B17 crewman, that from memory ran.

    “Once clear of the ship I remembered the drill for bailing out. I calmly counted down from ten to one, missing out nine through two, and yanked the handle for all I was worth.”

    Moggy

    Agreed but you also hear of pilots doing a 10 to 15,000 foot drop to get out of the combat area.

    Ali

    in reply to: Bader – The TV Programme #1318927
    Allison Johnson
    Participant

    Bader’s Spitfire may be under that lake! You can’t draw any definate conclusions until that avenue has been explored !

    I never met Bader or Casson, so like many here I only have the facts infront of me . . .one 109 accounted for by Nip Hepple and one ‘109’ accounted for by Casson – the loss described perfectly the way Bader was lost. My G*d I think if you take away ALL the what’s and if’s and maybe’s it is pretty obvious what happened.

    Casson shot Bader down. Bader, (Mega Legend), can’t live it down and snubs Casson . . .now listen guys there may be another theory . . .bare with me . . .

    In Brian Kingcome’s book ‘A Willingness To Die’ he describes a deliberate friendly-fire episode in 1941 of a Spitfire pilot on his Wing Commander, also in a Spitfire, and who was generally despised. Back in 1967 this caused a massive tabloid storm but in his book Kingcome (to his credit and my frustration) never disclosed the identity of those pilots . . .is it at all possible that Bader was knocked down by ‘other means’?

    I generally find an open mind is the key to most locked doors to mysteries unsolved.

    I can’t find for the life of me the identity of that Wing Commander, or the junior pilot. Maybe it was Bader, and . . . ?

    As an aside – absolutely cracking programme, and I certainly feel more in awe of Bader after hearing that brave Fireman describe how walking with false legs is ‘like walking on ice with NO feeling whatsoever underneath’ . . . Bader did that AND flew a fighter aircraft in battle. Awsome.

    I know where I could borrow a sub bottom profiler that will look through 150 meters of water and 40 meters of silt.

    Ali

    in reply to: Bader – The TV Programme #1319495
    Allison Johnson
    Participant

    Good points Ali.
    How would Bader’s false legs be attached ? Would they be held in place merely by straps (reasonably tight) around his legs above the knees? If this is the case then it seems very feasible that a leg could be dislodged by the jerk of an opening chute. Why didn’t he lose both? I seem to remember that Bader had one leg amputated below the knee and one above. Perhaps one stump provided better purchase than the other.
    Ali’s point about how long he would have free-fallen before the chute opened – surely the aircraft would already be moving at a faster speed than the average free faller’s terminal velocity. Especially since this aircraft almost certainly had just performed a serious nose down ‘bunt’ having lost the tail.

    Most jump ships travel faster than the skydiver will be falling on jump run.

    If the jolt can break a skydivers training shoe lace and the nylon chin strap of a camera helmet then it’s quite a jolt (camera helmets have double nylon straps so are tougher than a normal helmet). On the deployment of a skydivers reserve the skydiver is at sub terminal velocity because you have to remember that the skydiver WANTS to get his/her reserve out as quickly as possible. A fighter pilot in a battle would’t deploy immediately as I am sure he didn’t want to be under canopy with all those bullets and fighters zooming around so at what minimum altitude would a Spitfire pilot deploy? If he fell away it’s very possible that he was at terminal velocity when he went for the pull a terminal opening of a round parachute would have seriously spanked him. If the skydiver, who’s lace and helmet strap broke at sub-terminal velocity then a terminal opening could quite possibly have ripped off the tin leg do you not think. I have done a terminal opening of a square reserve and the bruises were so bad that you could make out the clear shape of the leg strap buckle on my thigh for a few days afterwards. My square parachute has a slider which is to retard the opening and the round parachutes don’t have such a feature. If the terminal square opening spanked me, a round opening must have been seriously painful.

    Ali

    in reply to: Bader – The TV Programme #1319672
    Allison Johnson
    Participant

    I’d like to ask Andy Saunders a sensible (well for me anyway) question.
    If Bader’s leg was found in a field not a million miles away from where it was estimated that he departed the aircraft, does he therefore think that the leg was broken off by the perhaps the jerk of the parachute opening, rather than the more ‘authorised’ version of it being left in the aircraft?
    I ask this because over and over again one reads about items of clothing and equipment being lost by both aircrew bailing out and even parachute troops when the large initial ‘jerk’ in the rate of descant takes place.
    Any thoughts?
    Andy

    As some of you know I skydive. Once at Headcorn a guy had a malfunction on his main and cut it away and used his reserve. The reserve was a Phantom 24 round one (didn’t know they still used them) and the opening shock broke one of the laces on his trainers which came off and the strap on the camera helmet he was wearing. They do say these round reserves are a life saver rather than a limb saver. In WWII the only parachutes that were used by aircrew were round so probably similar to the Phantom 24 or worse. I do know that the landing under a round reserve is the “snotty heap of sh**” landing technique. Roll like hell or it breaks. Never tried it myself but it looks painful. A tin leg would have been more secure than the helmet or the trainers but the opening shock would, I feel be similar. Plus there is the “how far did Bader fall before pulling the handle” question so how fast was he doing? A skydiver would chop the malfunction and then get face to earth quickly and then pull the reserve so the distance would have been less.

    Ali

    in reply to: General Discussion #359912
    Allison Johnson
    Participant

    I know that.

    I used to play League – which will probably come as no surprise to anyone who has met me. 😀

    My uncle is a national ref with Union. Come from Yorkshire see. It’s in our blood.

    Ali 😀

    in reply to: Japanese Embassy in US #1949329
    Allison Johnson
    Participant

    I know that.

    I used to play League – which will probably come as no surprise to anyone who has met me. 😀

    My uncle is a national ref with Union. Come from Yorkshire see. It’s in our blood.

    Ali 😀

    in reply to: Bader – The TV Programme #1319854
    Allison Johnson
    Participant

    If I recall the brave old chap appeared quite bemused by the activity and was more interested in his beer!

    I also remember thinking it odd how they glossed over the fate of the German pilot. They said he was hurt baling out/on the way down and died of his injuroes.

    DS

    I spoke to the director of the program (James Culter of Mentorn) and he said it wasn’t a deliberate ramming and was just a plain old mid air collision. Not playing down Ray Holmes as I think that someone who takes a fighter up in the dark to do battle in the air is a seriously brave man.

    Ali

    in reply to: Bader – The TV Programme #1319859
    Allison Johnson
    Participant

    My Latin’s a bit rusty…
    “I came, I saw, I……… peeled onions?” :rolleyes:

    Might be wrong :p

    Might be. :p

    Ali

    in reply to: General Discussion #359922
    Allison Johnson
    Participant

    Don’t worry Hurrifan just think, with all that rotting rubbish we should soon be able too drive methane powered cars…. 😀
    _____________________________________________

    Would you want to drive behind one though.

    Ali

    in reply to: Fossil Fuels v's Alternative Energy #1949337
    Allison Johnson
    Participant

    Don’t worry Hurrifan just think, with all that rotting rubbish we should soon be able too drive methane powered cars…. 😀
    _____________________________________________

    Would you want to drive behind one though.

    Ali

    in reply to: General Discussion #359926
    Allison Johnson
    Participant

    Not to mention the power and influence wielded by vested interests like the energy companies and the road transport lobby.

    For example, UK transport policy has been effectively dictated for decades by the large construction firms that build motorways (That’s “freeways” to you ex-colonial chappies 😉 ) and, quite coincidentally, also donate large sums to the major political parties.

    Maybe we shold ban money to save the environment. It all seems to come down to profit doesn’t it. 🙁

    Ali

    in reply to: Fossil Fuels v's Alternative Energy #1949341
    Allison Johnson
    Participant

    Not to mention the power and influence wielded by vested interests like the energy companies and the road transport lobby.

    For example, UK transport policy has been effectively dictated for decades by the large construction firms that build motorways (That’s “freeways” to you ex-colonial chappies 😉 ) and, quite coincidentally, also donate large sums to the major political parties.

    Maybe we shold ban money to save the environment. It all seems to come down to profit doesn’t it. 🙁

    Ali

    in reply to: General Discussion #359932
    Allison Johnson
    Participant

    They tested the grease-powered car on Mythbusters. I believe it got a little less mileage than using gas, but it worked fine. All you’d have to do is find enough grease and strain it (they used grease taken from deep fryers at a fast-food joint) and you’re in business. Might not really be practical, but the fact that somebody made a car run on something other than gas or electricity was great.

    Here’s an idea for hydroelectric power. You need two “oil rigs”. We’ll call them that because that’s the closest thing I can think of to what you’d need. The first is on your coastline. It’s the “receiver”. The second is out in the ocean over the top of a strong underwater current. Place the hydroelectric generators subsurface inside the underwater current. They generate power which is sent up to the rig overhead. It converts this to electricity, charging a massive power cell which is on a ship the size of a supertanker. The floating battery charges, then moves to the coastal platform to unload it’s charged cell, which is taken to a distribution station to give off the electricity to needy users. Put an empty “battery” on the boat, and send it back out to the plant for charging. The only question is, does an underwater current exist that’d be strong enough to make this work on a useable level?

    I saw a sci-fi program where they had satellites in orbit with massive photo voltaic cells which collected the sunlight and “fired” it at collectors on the ground. Was wondering if one of you rocket scientists out there can tell me if this is practical.

    Ali

Viewing 15 posts - 76 through 90 (of 452 total)