Skydiver theory of operation

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Skydiver theory of operation

croprobz

Has anybody gone into the technical side of the launching
procedure of Sky One?
To make the submarine tilt upwards at 45 degrees would be
simply a matter of blowing the forward ballast tanks, but
what happens when Sky One detaches from the main body?
With the aircraft free, one would expect the rest of the
vessel to go to a vertical position, (with the crew holding on
for dear life) but the launch sequence shows it remaining
stationary. One way to keep the equilibrium would be for the
aircraft section to carry,then jettison it's own ballast,but
this would be contrary to the design of any craft,as I have heard
that what applies for air also applies to water,such as drag.Any
sort of ballast would certainly have an effect on the aircraft
both in the water or out of it. Any thoughts?

Regards,Kevin
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Hi All :)

Griff
Hi All :)

Wishing you all a wonderfully Happy Christmas and a New Year filled with Health,
Wealth and Happiness.

We're off on holiday to somewhere disgustingly Hot and Sunny until mid January,

Best to you all :)

Griff and Ellen Wason
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Re: Skydiver theory of operation

naughtyhector
In reply to this post by croprobz

--- In [hidden email], "croprobz" <croprobz@y...> wrote:
>
> Has anybody gone into the technical side of the launching
> procedure of Sky One?

Good point, how about...(bear in mind I am not an engineer!)

1) maneuvering thrusters kick in as Sky 1 detaches to keep Diver in
the same position until the ballast is adjusted.

2)a counterweight can be moved quickly from aft to bow by hydraulics
or somesuch method.

3)Sky 1's rockets are first exhausting into Diver perhaps these
gases can be used to adjust aft trim tanks?

What do you think?

Barry
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Re: Skydiver theory of operation

davrecon-3


> --- In [hidden email], "croprobz" <croprobz@y...> wrote:
> >
> > Has anybody gone into the technical side of the launching
> > procedure of Sky One?
>
> Good point, how about...(bear in mind I am not an engineer!)
>
> 1) maneuvering thrusters kick in as Sky 1 detaches to keep Diver in
> the same position until the ballast is adjusted.
>
> 2)a counterweight can be moved quickly from aft to bow by hydraulics
> or somesuch method.
>
> 3)Sky 1's rockets are first exhausting into Diver perhaps these
> gases can be used to adjust aft trim tanks?
>
> What do you think?
>
> Barry
>
>
-----------------------------------------------------------


How about.... just trimming the boat and plane to be neutrally bouyant in
both configurations. Then it won't matter whether the plane is attached or
not....

Dave H
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Re: Hi All :)

YOUTH ALLIANCE FOR CHANGE AND DEVELOPMENT
In reply to this post by Griff

Thankyou very much for the wish to all of as but know that not all of us will have that wealth and happiness but will have sruggles looking for school fee like am.

Thanks
Goal Joseph
(Nairobi-Kenya)

Griff <[hidden email]> wrote:

Hi All :)

Wishing you all a wonderfully Happy Christmas and a New Year filled with Health,
Wealth and Happiness.

We're off on holiday to somewhere disgustingly Hot and Sunny until mid January,

Best to you all :)

Griff and Ellen Wason





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Re: Hi All :)

bryan legg
In reply to this post by Griff
Happy Holidays to you too. Wherever you are going have a great time.

Griff <[hidden email]> wrote:
Hi All :)

Wishing you all a wonderfully Happy Christmas and a New Year filled with Health,
Wealth and Happiness.

We're off on holiday to somewhere disgustingly Hot and Sunny until mid January,

Best to you all :)

Griff and Ellen Wason





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Re: Skydiver theory of operation

croprobz
In reply to this post by naughtyhector

--- In [hidden email], "naughtyhector"
<barry_john.hinchliffe@n...> wrote:

> 1) maneuvering thrusters kick in as Sky 1 detaches to keep Diver
in
> the same position until the ballast is adjusted.
>
> 2)a counterweight can be moved quickly from aft to bow by
hydraulics
> or somesuch method.
>
> 3)Sky 1's rockets are first exhausting into Diver perhaps these
> gases can be used to adjust aft trim tanks?
>
> What do you think?
>
> Barry

I have read that gyroscopes are used in ships to keep them from
rolling too much, so point 2 above would give stability to Skydiver
at launch coupled with points 1 and 3 to maintain stationary
position of the submarine. It looks an easy task to launch Sky One,
but the more I think of it the more complicated it gets.

Kevin
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Re: Skydiver theory of operation

croprobz
In reply to this post by davrecon-3

--- In [hidden email], "davrecon" <davrecon@n...> wrote:
>

> How about.... just trimming the boat and plane to be neutrally
bouyant in
> both configurations. Then it won't matter whether the plane is
attached or
> not....
>
> Dave H

Does this mean that both plane and sub have their own ballast tanks?
If so,I assume these would come in handy for aligning and
reattaching the plane to the submarine section. Unfortunately, we
never get to see this task carried out during the series.It may have
been a big job.

Kevin.
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Re: Skydiver theory of operation

davrecon-3


----- Original Message -----
From: "croprobz" <[hidden email]>
To: <[hidden email]>
Sent: Friday, December 17, 2004 10:43 AM
Subject: [SHADO] Re: Skydiver theory of operation


>
>
> --- In [hidden email], "davrecon" <davrecon@n...> wrote:
> >
>
> > How about.... just trimming the boat and plane to be neutrally
> bouyant in
> > both configurations. Then it won't matter whether the plane is
> attached or
> > not....
> >
> > Dave H
>
> Does this mean that both plane and sub have their own ballast tanks?
> If so,I assume these would come in handy for aligning and
> reattaching the plane to the submarine section. Unfortunately, we
> never get to see this task carried out during the series.It may have
> been a big job.
>
> Kevin.
>

-------------------------------------------------------------

Re-attaching the plane seems to be the biggest job. I first used to
think that it would be done by ditching the plane and then winching it back
against the surfaced sub.
But on anything less than a calm day, wave action would make that
terribly hazardous, so it seems best to re-link them well below the surface
of the water, where wave action is no longer felt. Small water jet
maneuvering thrusters would allow the pilot to back the plane up against the
submarine and re-dock.....but at a terrible weight penalty on an already
impossible airplane.
An alternative would be to let the plane settle to a prescribed depth,
then dispatch scubadivers to cable and winch the plane back against the
docking ports of the sub. The weight cost of a simple air ballast tank
filling already available air voids within the plane's fuselage would be
minimal.
The plane could be always maintained as neutrally bouyant on the
submarine, therefore, no need to have all these fancy counterballancing
thrusters and moving counterweights.
Dave H.
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Re: Skydiver theory of operation

mark turner
In reply to this post by croprobz

...possibly SkyDiver had a reinforced back bumper and heavy-duty wheelie bars.

croprobz <[hidden email]> wrote:

--- In [hidden email], "davrecon" wrote:
>

> How about.... just trimming the boat and plane to be neutrally
bouyant in
> both configurations. Then it won't matter whether the plane is
attached or
> not....
>
> Dave H

Does this mean that both plane and sub have their own ballast tanks?
If so,I assume these would come in handy for aligning and
reattaching the plane to the submarine section. Unfortunately, we
never get to see this task carried out during the series.It may have
been a big job.

Kevin.






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