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CLAC LAC launching

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Re: CLAC LAC launching
Post by Lord Skimper   » Fri Jan 23, 2015 6:20 pm

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Does the CLAC have to stop accelerating to launch a LAC?
Last edited by Lord Skimper on Fri Jan 23, 2015 7:11 pm, edited 1 time in total.
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Re: CLAC LAC launching
Post by fallsfromtrees   » Fri Jan 23, 2015 6:35 pm

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Lord Skimper wrote:Does the CLAC have to stop accelerating to launch a LAC?

Simplifies things considerably. Otherwise you are going to have the sheer caused going fram a field that is accelerating at perhaps 400 gs to no acceleration at all when the LAC escapes from the wedge field. Not gonna be fun.
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Re: CLAC LAC launching
Post by Lord Skimper   » Fri Jan 23, 2015 7:20 pm

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fallsfromtrees wrote:
Lord Skimper wrote:Does the CLAC have to stop accelerating to launch a LAC?

Simplifies things considerably. Otherwise you are going to have the sheer caused going fram a field that is accelerating at perhaps 400 gs to no acceleration at all when the LAC escapes from the wedge field. Not gonna be fun.


Wedge up or down?

To clear the wedge stopped (acceleration zero not stopped totally) the LAC at 1 G would take 4 hours 10 minutes.

wedge down it would still need to go out the CLAC side, turn around and clear the LAC wedge size of at least 1000 metres at 1 G thrusters 100-200 seconds to clear the CLAC and each other LAC on it's side. 50 LAC per side for a Minotaur it could take 15 plus minutes to over an hour to launch all the LAC. Wedge up even longer.
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Re: CLAC LAC launching
Post by Joat42   » Fri Jan 23, 2015 8:57 pm

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I think part of the answer lies in how big an acceleration the LAC (and crew) can handle. I don't see why the launch system couldn't be a scaled up version of the missile launchers albeit with lower acceleration.

On the other hand, if the CLAC has the wedge up can the LACs utilize the CLAC's sump while being accelerated out of the bays? That would mean that the LACs could be launched at a couple of hundred G's after which the CLAC drops it's wedge and the LACs accelerate away to clear the wedge.

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Re: CLAC LAC launching
Post by Senior Chief   » Sat Jan 24, 2015 12:38 am

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Perhaps a very large ibeam with a giant elastic band and sling shot them out of the bay.... No power involved except a winch/wench turning the gears to stretch the elastic band back for launching... Just more humorous though thought....
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Re: CLAC LAC launching
Post by kzt   » Sat Jan 24, 2015 1:34 am

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Senior Chief wrote:Perhaps a very large ibeam with a giant elastic band and sling shot them out of the bay.... No power involved except a winch/wench turning the gears to stretch the elastic band back for launching... Just more humorous though thought....

It's actually space squirrel powered. But I think that is classified, so don't tell anyone.
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Re: CLAC LAC launching
Post by SharkHunter   » Sat Jan 24, 2015 2:14 am

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fallsfromtrees wrote:
Lord Skimper wrote:Does the CLAC have to stop accelerating to launch a LAC?

Simplifies things considerably. Otherwise you are going to have the sheer caused going fram a field that is accelerating at perhaps 400 gs to no acceleration at all when the LAC escapes from the wedge field. Not gonna be fun.

The reaction thrusters that was used to boost a shuttle out of the wedge maxed out at about 20G in HoE briefly, which was also apparently quite a bit more violent than a normal small ship launch.

In terms of clearing the ship's field, CLACs only accelerate until they reach a desired velocity, so when launching, are likely up to a desired speed but don't need to accelerate further. Even if they're under some acceleration, IIRC the grav plates can do about 20:1, so divide it down and at any accel less than say 200G, the LAC launch would be no more violent than that of a fighter off of an aircraft carrier or less, even without impellers.
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Re: CLAC LAC launching
Post by Joat42   » Sat Jan 24, 2015 7:12 am

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SharkHunter wrote:The reaction thrusters that was used to boost a shuttle out of the wedge maxed out at about 20G in HoE briefly, which was also apparently quite a bit more violent than a normal small ship launch.

In terms of clearing the ship's field, CLACs only accelerate until they reach a desired velocity, so when launching, are likely up to a desired speed but don't need to accelerate further. Even if they're under some acceleration, IIRC the grav plates can do about 20:1, so divide it down and at any accel less than say 200G, the LAC launch would be no more violent than that of a fighter off of an aircraft carrier or less, even without impellers.

Uhm, my recollection is that the grav-plates can handle up to 50G, then it starts to bleed through.
Last edited by Joat42 on Sat Jan 24, 2015 4:04 pm, edited 1 time in total.

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Re: CLAC LAC launching
Post by Lord Skimper   » Sat Jan 24, 2015 9:05 am

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Do shrike have reaction thrusters?

Honor bled the bottle to move the ship at 5 G apparent about 200 g.

Shrike type LAC don't have a bottle.

Even at 40 g it will take 15 minutes to clear 100 LAC without maneuvering. At 20 g that would be about 30 minutes.

If you launch the lac at missile speed 10,000 g even with 50 g dampening everyone will be squished with 200 g apparent acceleration.

The biggest problem is spacing the LAC from each other when their wedges go up ships are tiny wedges are huge.
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Re: CLAC LAC launching
Post by Rowbi   » Sat Jan 24, 2015 11:05 am

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Lord Skimper wrote:Do shrike have reaction thrusters?

Honor bled the bottle to move the ship at 5 G apparent about 200 g.

Shrike type LAC don't have a bottle.

Even at 40 g it will take 15 minutes to clear 100 LAC without maneuvering. At 20 g that would be about 30 minutes.

If you launch the lac at missile speed 10,000 g even with 50 g dampening everyone will be squished with 200 g apparent acceleration.

The biggest problem is spacing the LAC from each other when their wedges go up ships are tiny wedges are huge.


The Shrikes and Ferrets had reaction thrusters. In Echoes of Honor when Alice describes the original concept of operations she specifically says all bunkerage except what was needed for the thrusters was omitted because of the fission piles.

The Shrikes original operational concept was to approach obliquely. As they approached they would fire off-bore missiles and then turn on their bow wall and the use thrusters to maneuver for their graser shots.

The description takes place in EoH hardback pg's 39-44. The first Shrike attack is pgs 380-393.
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