Frans,
I think for all the effort in getting the battery out, it might be better to get
yourself out. Why not open the door which will no doubt tear off, and of course
wearing a shute, jump clear? Now what we need to discuss is the most appropriate
manoeuvre to put the a/c into so that when "we" depart the a/c, we don't
hit the tail, or it doesn't hit us. I am suggesting an inverted bunt might
be the best, but you need to remember to undo your belt before you do it. So,
maybe we connect the rope that was to eject the battery to the door, and to the
seat belt restraint? Then, when the door is opened it pulls the rope, which
disables the seat belt attach? If the bunt became the manoeuvre of choice, we
could harden up the system and make the rope attached to the door, undo the
seatbelt
restraint and also deploy a drogue chute in anticipation of the bunt manoeuvre?
Of course that would only give you a minuscule amount of time in which
to roll inverted and bunt, to spit you out before your drogue shute drags you
through the aft part of the a/c, but, thats an incentive to get on with it,
so no "chickening out". I reckon we can work more on this rope idea, for lots
of other functionality. I suggest a rope thread.
Reg
late at night, too much soccer, and beer. I would have been OK had Frans not
provoked
me. ;-)
On 18/06/2010, at 11:47 PM, Frans Veldman wrote:
>
> On 06/18/2010 06:30 AM, Tony Renshaw wrote:
>
>> is there another way of achieving this same goal? I suppose in the case of a
crash it would mean that you would have voltage still coming forward
>
> Thinking about it, and your electron aversion...
> Why not connect the battery via two plugs that can be pulled apart.
> Make a hatch below the battery, closed with a safety pin, connected to a
> rope leading into the cockpit. No fancy electrons needed.
>
> In an emergency, on final for your crash landing, pull the rope. The
> weight of the battery will for sure pull the plugs apart on its way out.
> Bye bye battery.
>
> Advantages:
> 1) No fuses, no switches, no wires, no relays, no mess. No female
> electrons to bug you during final on your crash landing. Just a rope and
> pin. People have relied on these for ages for various of purposes. Every
> mechanic understands how it works.
> 2) There is nothing to spark left, no relays that can switch on again
> due to the forces acting upon them, no battery that might get punctured
> by your elevator mass balance arm and emit a shower of sparks as a
> result, your knee can't bump into the master switch and power up the
> ship again during the most critical stage of the crash, everything with
> sparking ability is just simply dumped overboard.
> 3) The aft-mounted battery won't bump into your head, it is already
> gone. One thing less to worry about.
> 4) The reduce in weight might well be an advantage in getting the
> aircraft to a stop. The lighter the aircraft is, the less mass you have
> to decellerate.
>
> Just keep it simple.
>
> Of course you have to attach a red "for emergency use only" label to the
> rope and brief your passengers not to pull on it while asking "what is
> this for" when your are circling his home vilage. If you want to be
> fancy you cat attach a small parachute to the battery. This has the
> additional advantage that you can test the system overhead your airfield
> and it won't cost you a new battery.
>
> Frans
>
>
>
>
>
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