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PRS Magellan, Filipino Sail Training Ship, laid down 1926

Length, 193 ft x Beam, 35.5 ft x Depth, 13.6 ft
1278 tons normal displacement (1136 tons standard)

Main battery: 1 x 2.24-inch / 57mm
Light battery: 2 x 0.54-inch / 13.7mm

Weight of broadside: 6 lbs

Hull unarmored

Battery armor:
Main, 0.98" shields


Maximum speed for 599 shp = 11.08 knots
Approximate cruising radius under power, 7000 nm / 11.1 kts

Typical complement: 107-139


Estimated cost, $582,000 (£146,000)

Remarks:

Ship has slow, easy roll; a good, steady gun platform.

Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 1 tons = 0 pct
Armor, total ..................... 1 tons = 0 pct

Armament 1 tons = 0 pct

Machinery ........................ 19 tons = 2 pct
Hull and fittings; equipment ..... 890 tons = 70 pct
Fuel, ammunition, stores ......... 168 tons = 13 pct
Miscellaneous weights ............ 200 tons = 16 pct
-----
1278 tons = 100 pct

Estimated metacentric height, 1.2 ft

Displacement summary:

Light ship: 1110 tons
Standard displacement: 1136 tons
Normal service: 1278 tons
Full load: 1386 tons

Loading submergence 120 tons/foot

+++++++++++++++++++++++++


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.05

Shellfire needed to sink: 5923 lbs = 1054.0 x 2.2-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 3.7
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 70 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.01

Relative quality as a seaboat: 2.00

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.48
Sharpness coefficient: 0.40
Hull speed coefficient 'M' = 5.44
'Natural speed' for length = 13.9 knots
Power going to wave formation
at top speed: 37 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 24 percent

Relative accommodation and working space: 93 percent


Displacement factor: 522 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 2.32
(Structure weight per square
foot of hull surface: 119 lbs)

Relative longitudinal hull strength: 10.82
(for 12.5 ft average freeboard;
freeboard adjustment +2.5 ft)

Relative composite hull strength: 2.71

+++++++++++++++++++++++++


[Machine-readable parameters: Spring Style v. 1.2.1]

193.00 x 35.50 x 13.60; 12.50 -- Dimensions
0.48 -- Block coefficient
1926 -- Year laid down
11.08 / 7000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
200 tons -- Miscellaneous weights
++++++++++
1 x 2.24; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
0 -- No secondary battery
0 -- No tertiary (QF/AA) battery
2 x 0.54 -- Fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
0.98 / 0.00 / 0.00 / 0.00 -- Battery armor


+++++++++++++++++++++++++++++++++++++++++++++++++++++++

You'll be under sail for a lot of a voyage.

Is her hull wood?

I'll change it to "Approximate cruising radius under power".

Quoted

Is her hull wood?

Haven't decided on that yet.

Added a second 57mm gun, as it occured to me that having just one, on the bow, would be rather awkwards when the sails were up and you needed AA fire aft.

PRS Magellan, Filipino Sail Training Ship, laid down 1926

Length, 193 ft x Beam, 35.5 ft x Depth, 13.6 ft
1278 tons normal displacement (1137 tons standard)

Main battery: 2 x 2.24-inch / 57mm
Light battery: 2 x 0.54-inch / 13.7mm

Weight of broadside: 12 lbs

Hull unarmored

Battery armor:
Main, 0.98" shields


Maximum speed for 599 shp = 11.08 knots
Approximate cruising radius, 7000 nm / 11 kts

Typical complement: 107-139


Estimated cost, $591,000 (£148,000)

Remarks:

Ship has slow, easy roll; a good, steady gun platform.

Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 1 tons = 0 pct
Armor, total ..................... 1 tons = 0 pct

Armament 1 tons = 0 pct

Machinery ........................ 19 tons = 2 pct
Hull and fittings; equipment ..... 888 tons = 70 pct
Fuel, ammunition, stores ......... 168 tons = 13 pct
Miscellaneous weights ............ 200 tons = 16 pct
-----
1278 tons = 100 pct

Estimated metacentric height, 1.2 ft

Displacement summary:

Light ship: 1110 tons
Standard displacement: 1137 tons
Normal service: 1278 tons
Full load: 1386 tons

Loading submergence 120 tons/foot

+++++++++++++++++++++++++


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.05

Shellfire needed to sink: 5820 lbs = 1035.7 x 2.2-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 3.7
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 70 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.01

Relative quality as a seaboat: 2.00

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.48
Sharpness coefficient: 0.40
Hull speed coefficient 'M' = 5.44
'Natural speed' for length = 13.9 knots
Power going to wave formation
at top speed: 37 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 24 percent

Relative accommodation and working space: 93 percent


Displacement factor: 509 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 2.31
(Structure weight per square
foot of hull surface: 119 lbs)

Relative longitudinal hull strength: 10.80
(for 12.5 ft average freeboard;
freeboard adjustment +2.5 ft)

Relative composite hull strength: 2.69

+++++++++++++++++++++++++


[Machine-readable parameters: Spring Style v. 1.2.1]

193.00 x 35.50 x 13.60; 12.50 -- Dimensions
0.48 -- Block coefficient
1926 -- Year laid down
11.08 / 7000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
200 tons -- Miscellaneous weights
++++++++++
2 x 2.24; 0 -- Main battery; turrets
Gun-shields
:
0 -- No secondary battery
0 -- No tertiary (QF/AA) battery
2 x 0.54 -- Fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
0.98 / 0.00 / 0.00 / 0.00 -- Battery armor


+++++++++++++++++++++++++++++++++++++++++++++++++++++++

AA fire when the sails are up at any time will cause huge problems. Most of the time you are going to fire into your own rigging. Just give them a LA 100mm gun forward to practice on.

The 57mm would probably be for saluting - although they seem kinda big for that (IIRC 3pdr (47mm) was usual).

Cheers,

It's ironclad MdF policy to have AA guns on every ship. But I'll try to talk some sense into the designers.

3-pdr/47mm guns are the standard for saluting, but they're not a MdF caliber - they were on the Fernando when she was purchased, but they're on the list for removal/scrapping when "F" is refit in Q4/25.

PRS Magellan, Filipino Sail Training Ship, laid down 1926

Displacement:
1,112 t light; 1,139 t standard; 1,278 t normal; 1,389 t full load

Dimensions: Length overall / water x beam x draught
233.37 ft / 193.00 ft x 35.50 ft x 13.60 ft (normal load)
71.13 m / 58.83 m x 10.82 m x 4.15 m

Armament:
1 - 3.94" / 100 mm guns in a single mount, 32.00lbs / 14.51kg shells, 1926 Model
Quick firing gun in deck mount
on centreline forward
2 - 0.54" / 13.7 mm guns (1x2 guns), 0.11lbs / 0.05kg shells, 1926 Model
Machine guns in deck mount
on centreline aft

Weight of broadside 32 lbs / 15 kg
Shells per gun, main battery: 100

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm - -

Machinery:
Diesel Internal combustion motors,
Direct drive, 1 shaft, 604 shp / 451 Kw = 11.10 kts
Range 9,000nm at 10.00 kts (Bunkerage = 250 tons)

Complement:
106 - 138

Cost:
£0.155 million / $0.619 million

Distribution of weights at normal displacement:
Armament: 4 tons, 0.3 %
Armour: 2 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 19 tons, 1.5 %
Hull, fittings & equipment: 886 tons, 69.3 %
Fuel, ammunition & stores: 166 tons, 13.0 %
Miscellaneous weights: 200 tons, 15.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,386 lbs / 2,443 Kg = 176.5 x 3.9 " / 100 mm shells or 3.4 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 1.2 ft / 0.4 m
Roll period: 13.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.480
Length to Beam Ratio: 5.44 : 1
'Natural speed' for length: 13.89 kts
Power going to wave formation at top speed: 37 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 60.00 degrees
Stern overhang: 4.00 ft / 1.22 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (20 %): 14.00 ft / 4.27 m
- Mid (50 %): 11.00 ft / 3.35 m
- Quarterdeck (15 %): 11.00 ft / 3.35 m
- Stern: 11.00 ft / 3.35 m
- Average freeboard: 12.61 ft / 3.84 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 25.8 %
- Above water (accommodation/working, high = better): 90.2 %
Waterplane Area: 4,295 Square feet or 399 Square metres
Displacement factor (Displacement / loading): 470 %
Structure weight / hull surface area: 115 lbs/sq ft or 562 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 2.26
- Longitudinal: 11.55
- Overall: 2.67
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather