[gurps] Ver 1.1 TL6 Small Zeppelin

[Onno Meyer]

> Zeppelin LZ120 (type y) Bodensee

> The generator in the passenger gondola  
> is a small windmill attached outside the gondola that generates power  
> from the airship's windstream. (100 lbs, 2 cf, $400)

It can be risky to mix real life and rules in the same artifact, but
I think it works in this case. The volume rules in particular causes 
endless trouble.

> Water for ballast is not added for  
> loaded weight.

According to VE40, ballast cost is subsumed in the gas price. Weight 
is not mentioned, but I'd assume that VE40 lists a 'net useful lift'
(see below).

> Subassemblies: Bo (+10), Passenger Gondola (Po1, +4)), port and  
> starboard wing gondolas (Po2, Po3, +4), aft gondola (Po4,+4)

Po1 is +6, otherwise check.

> Body Features: Radical Streamlining

Check.

> Propulsion and lift:  TL5-6 194kW Aerial Props (Po2, Po3), TL5-6 384kW  
> Aerial Prop (Po4) . 1940 lbs motive thrust.

384 or 388 kW for the aft prop?

Lifting gas is a propulsion/lift component ...

> Instruments and Electronics: TL6 Communicator, Long Range, TL6  
> Navigation Instruments. (Po1)

Check.

> Controls: Mechanical.

Check.

> Crew Stations: Captain, Elevator Man, Rudder Man in roomy bridge  
> control stations,  Radio Operator in roomy control station, 2 stewards  
> in normal control stations (Po1). 1 keel watch 1 sail maker in normal  
> control stations (Main body). 1 engineer in normal control station  
> (Po2), 1 engineer in normal control station (Po3), 2 engineers in  
> normal control stations (Po4), plus up to 4 more crew for extra watches.

As per VE75, the 'rigger' needs no crew station. The rules also
require more riggers, but fewer maneuver crew, so it evens out. 

The stewards can work in the galley, too.

> Occupancy: Short. Passengers 21 in roomy seats with superior access  
> (Po1). Crew 16, with 8 normal seats and 4 hammocks (Main body). Two  
> toilets  and Galley in Po1.

Check.

> Power: 4 194kW TL6 HP Gasoline Engines (2 Po4, 1 Po2, 1 Po3). 1800kWs  
> TL6 Lead-Acid Battery (Po1), Generator (100lbs, 2 cf, $400, 1kW)

That leaves power for a bit of electric lighting, etc.

> Fuel TL6 770 gal ultralight fuel tank (Main body), TL6 10 gal  
> ultralight fuel tank (Po2, Po3), TL6 20 gal ultralight fuel tank (Po4)  
> all filed with aviation gas. TL6 300 gal ultralight fuel tank (Bo) for  
> water ballast.

I would assume that ballast, including tanks, is subtracted from useful
lift. The balonets, otoh, are purchased as a sealed body.

> Access, Cargo: 4500 cf access, 60 cf cargo space (Bo). Bridge Space  
> and Superior Access in Po1. Engine access space, Po1, Po2, Po3.

Technically pods need no access space.

> Vol: Bo 995989, Po1 3275, Po2 330, Po3 330, Po4 659

Not checked yet.

> Areas: Bo 59839, Po1 1323, Po2 287, Po3 287, Po4 454

Check for the area calculations.

> Structure: TL6 super-light advanced

> HP: Bo 8976, Po1 198, Po2, 43, Po3, 43, Po4 68

If your design is by any chance light, you could consider different 
material strengths for the body and pods. 

> Armor PD2 DR2 metal advance (Po1-Po4). PD1 DR1 nonrigid Bo.

You need a seal. "advanced metal".

> Vision: Good in Po4, Poor in Bo, Po1, Po2, Po3

> Statistics: Empty Weight, 29914 Usual Payload, 15665, Loaded Weight  
> 45579 lbs, 23 tons. Volume 1,000,583cf. Size Modifier +10. Price  
> 477,065.2. HT 12

> Aerial Performance: Stall Speed 0, Aerial Motive Thrust 1940 lbs.,  
> Aerodynamic Drag 1555, aTopspeed, 95 aMR 0.125, aSR 5, aDecel 0.5