WesWorld

Would you go to war in her????

Barco Del Aterrizaje, Iberia Landing Craft Infantry laid down 1932

Displacement:
29 t light; 30 t standard; 30 t normal; 30 t full load

Dimensions: Length overall / water x beam x draught
53.47 ft / 49.21 ft x 11.15 ft x 3.28 ft (normal load)
16.30 m / 15.00 m x 3.40 m x 1.00 m

Armament:
2 - 0.51" / 13.0 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1932 Model
Dual purpose guns in deck mounts
on side, all aft
Weight of broadside 0 lbs / 0 kg
Shells per gun, main battery: 1,500

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0.39" / 10 mm 31.99 ft / 9.75 m 6.56 ft / 2.00 m
Ends: 0.39" / 10 mm 17.19 ft / 5.24 m 6.56 ft / 2.00 m
Upper: 0.59" / 15 mm 6.56 ft / 2.00 m 7.38 ft / 2.25 m
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm - -

- Conning tower: 0.59" / 15 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 23 shp / 17 Kw = 8.00 kts
Range 100nm at 6.00 kts
Bunker at max displacement = 0 tons

Complement:
6 - 8

Cost:
£0.005 million / $0.020 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.1 %
Armour: 9 tons, 28.4 %
- Belts: 8 tons, 27.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.4 %
Machinery: 1 tons, 2.2 %
Hull, fittings & equipment: 10 tons, 33.0 %
Fuel, ammunition & stores: 1 tons, 3.0 %
Miscellaneous weights: 10 tons, 33.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
98 lbs / 44 Kg = 1,456.1 x 0.5 " / 13 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.02
Metacentric height 0.2 ft / 0.1 m
Roll period: 10.6 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised quarterdeck
and transom stern
Block coefficient: 0.583
Length to Beam Ratio: 4.41 : 1
'Natural speed' for length: 8.54 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 7.38 ft / 2.25 m
- Forecastle (10 %): 4.92 ft / 1.50 m
- Mid (50 %): 4.92 ft / 1.50 m
- Quarterdeck (30 %): 6.56 ft / 2.00 m (4.92 ft / 1.50 m before break)
- Stern: 6.56 ft / 2.00 m
- Average freeboard: 5.51 ft / 1.68 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 45.5 %
- Above water (accommodation/working, high = better): 64.3 %
Waterplane Area: 412 Square feet or 38 Square metres
Displacement factor (Displacement / loading): 150 %
Structure weight / hull surface area: 12 lbs/sq ft or 60 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.76
- Longitudinal: 13.01
- Overall: 1.01
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Warning: Armour belts too tall for hull

Upper belt armour used to simulate bow ramp.
Draft 60cm at bow, 1.4 m at stern.
Props mounted in tunnels for protection during beaching.
Anchor and winch on stern to aid refloating after beaching

Haven't seen that warning before.

Looks reasonable to me - no doubt some lessons were learned from the op against the Filipino rebels. What's the estimated troop capacity?

I was thinking that a hold of 12m x 2.5m should houd about 40 to 50 men, hence the 10 tons misc weight.
Sound about right?

40's probably a good number; a couple of those tonnes are probably needed for the winch, so figure 8 t left = 200 kg per soldier and his kit.

Just as a matter of interest, what would be the rules for building these?
I ask, because they metal, and the rules for vessels of this size as they stand are for WOODEN vessels.

I dunno. I include their weight in the design of whatever larger ship is carrying them, and therefore reckon I pay for their construction cost at the same time. Where the craft is built is another matter, but given how small they are, it could probably be done in a commercial location.