AJW`s airships - now featuring Airship III, with added flying-spiral manoeuvring thrusters

#1
A thread for my airships, if anyone is interested. I'll start with the one I posted on the old forum, the unimaginatively-named Airship II








Controls:
Engines: Left 1 forward, 3 reverse. Right 2 forward 4 reverse.
Engine tilt: Down numpad 4, up numpad 1
Elevator: Down up arrow, up down arrow (it made sense at the time...)

File attached below, along with version with added skyhook - 'V' to ungrab, 'J' to jettison cable entirely.

I've since done more work, and my latest version now has flying-spiral manoeuvring thrusters:



I came to the conclusion that using the main engines for manoeuvring was a liability because of balloon-popping issues, and the thrusters give much finer control. I'll post a bsg file when I can (and when I've decided whether to call it Airship IIB or Airship III. Decisions, decisions... :rolleyes: ).

EDIT: See post lower down for Airship III.


Attached Files
Zep-012.bsg
Zep-012-grab.bsg
 
#4
JΛYCE said:
Yay for transferring stuff to the new forums!

Yay for the new forums! The old one was a buggy liability, and I'm glad to see the back of it.

I'm just writing the (miss-) handling notes for Airship III, which will be posted when the upload problem is sorted, and then I'll start thinking about my next airship. Meanwhile, a problem for those of you better at maths than me (which probably includes most of you...) how big would an airship need to be to be able to support armour plating?
 
#5
AJW said:
Yay for the new forums! The old one was a buggy liability, and I'm glad to see the back of it.

I'm just writing the (miss-) handling notes for Airship III, which will be posted when the upload problem is sorted, and then I'll start thinking about my next airship. Meanwhile, a problem for those of you better at maths than me (which probably includes most of you...) how big would an airship need to be to be able to support armour plating?

Gawd. Armor plating. That would be *counts* around twice this size... don't count on me tho, I'm pretty new at baloons and don't really know how to work them properly yet :3 awesome creation anyways! :D
 
#6
Airship III

As promised, my latest airship - now with added flying-spiral manoeuvring thrusters. I decided that using the main engines for turning etc really wasn't the best solution - it tended to pop balloons (or shed an engine, which could be even more embarrasing) and didn't provide the delicate control needed. The thrusters allow it to move in any direction, and even turn on the spot. Due to a bug (I think - it's been reported) it tends to 'stick' on the ground, so it still needs main-engine thrust vectoring to lift off - and it will climb faster that way too.









Controls:

Main engines (normal keys) [TABLE="border: 1, cellpadding: 1, width: 120"]
[TR]
[TD]Forward[/TD]
[TD]1[/TD]
[/TR]
[TR]
[TD]Reverse[/TD]
[TD]2[/TD]
[/TR]
[TR]
[TD]Tilt up[/TD]
[TD]3[/TD]
[/TR]
[TR]
[TD]Tilt down[/TD]
[TD]4[/TD]
[/TR]
[/TABLE]
Elevator [TABLE="border: 1, cellpadding: 1, width: 120"]
[TR]
[TD]Up[/TD]
[TD]Down arrow[/TD]
[/TR]
[TR]
[TD]Down[/TD]
[TD]Up arrow[/TD]
[/TR]
[/TABLE]
(It made sense at the time...)

Manoeuvring thrusters (numpad keys) [TABLE="border: 1, cellpadding: 1, width: 120"]
[TR]
[TD]Left front[/TD]
[TD][7][/TD]
[/TR]
[TR]
[TD]Left rear[/TD]
[TD][4][/TD]
[/TR]
[TR]
[TD]Right front[/TD]
[TD][9][/TD]
[/TR]
[TR]
[TD]Right rear[/TD]
[TD][6][/TD]
[/TR]
[TR]
[TD]Forward[/TD]
[TD][8][/TD]
[/TR]
[TR]
[TD]Reverse[/TD]
[TD][5][/TD]
[/TR]
[TR]
[TD]Up[/TD]
[TD][+][/TD]
[/TR]
[TR]
[TD]Down[/TD]
[TD][-][/TD]
[/TR]
[/TABLE]
Grabber [TABLE="border: 1, cellpadding: 1, width: 120"]
[TR]
[TD]Ungrab[/TD]
[TD]V[/TD]
[/TR]
[/TABLE]

As before, take off by pointing the main engines upward and giving at least a quick blip of power to unstick. The main engines can then be tilted forwards for the desired climb angle. It slightly reduces the tendency to nose up on takeoff if you first apply lots of down elevator, but it isn't essential. Otherwise, the elevator can stay in a neutral position - it's only noticeable effect is to alter the nose-high/nose-low attitude the airship sits at under main engine power. Adjust main-engine tilt to climb or descend. The rudder doesn't turn at all - it had no significant effect. To turn with the main engines running, use left front and right rear thrusters together, or right front and left rear as appropriate - you will find that it turns much more quickly with the main engines not running though, as they create a lot of gyroscopic force. Landing is simple enough - just tilt the main thrusters down (or tilt them up and use reverse power) and drop to low altitude, before switching to thruster control. You can then use the thrusters to adjust your position and orientation precisely (using both thrusters on the same side to crab sideways if necessary), before finally touching down using the down thrusters. There is a fair bit of spring in the landing gear, but try to be gentle all the same - a hard enough impact will break something.

I've added a grabber under the centre of gravity - feel free to hang something from it, but note that added weight will affect handling. If you want to modify the airship, likewise feel free to do so, but expect to have to add buoyancy if adding payload. The top layer of balloons are set at 1.0, which could probably be increased a little, though if you set them to the maximum they tend to pop at the start - the lower layers are set at the 1.5 maximum, and they exert a force on the top ones as they rise. If you need more buoyancy still, there are a few spots where more balloons can go without modifying the structure, but don't add them where they might foul the propellers.

Note that this version starts in the air - it seems to reduce the potential for damage caused by the initial 'jerk'. It should be just about neutrally buoyant, but will drop and then bounce gently initially. Or drop and not bounce if you've added too much extra weight...

Download link at the bottom of this post.Please don't upload the file elsewhere without linking this thread.

My next airship will be bigger, and probably include some offensive weaponry - possibly hung from a spring tether if I can figure out a reliable way to lower it, as airships aren't arrow-proof, and an armoured one would have to be rather large to support the weight...

Attached Files
AS3-00.bsg
 
#8
doglock said:
Three huzzahs to the developers for adding balloons. Everybody is having a blast with them. Great work!.

Yup. I'm still discovering things about them. You can create 'un-teathered' ones by deleting the object you've attached them to. And then capture them in an upturned box. Which might be useful for something or another. And I've just had an idea for a time-delayed bomb.



Three balloons at max buoyancy will comfortably lift this. Up to the region of icy death. At which point the balloons burst, and down it comes. :D

I think it might be possible to adjust the delay by adjusting the buoyancy.

 
#9
Coming soon to this thread - the dangly thing of incendiary unpleasantness. ;)



I've managed to simplicate and add lightness to the Mk III airship, and Mk IV will feature the dangly thing, along with a couple of drop-and-go-bang things. Probably including alternate unpleasantness options if I can think of any. Suggestions welcome - though the weight has to be kept down. Armoured dangly gondolas of destruction will have to wait for a larger design, I think.
 
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