WesWorld

Image by Navarchos, Springsharp project by Sachmle

VELOS, Greek Patrol Boat/Subchaser laid down 1940

Displacement:
425 t light; 442 t standard; 567 t normal; 667 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(180.00 ft / 174.00 ft) x 23.00 ft x (10.20 / 11.50 ft)
(54.86 m / 53.04 m) x 7.01 m x (3.11 / 3.50 m)

Armament:
1 - 3.00" / 76.2 mm 45.0 cal gun - 13.49lbs / 6.12kg shells, 250 per gun
Quick firing gun in deck mount, 1930 Model
1 x Single mount on centreline, forward deck forward
1 raised mount
2 - 1.57" / 40.0 mm 60.0 cal guns - 2.14lbs / 0.97kg shells, 1,000 per gun
Anti-air guns in deck mount, 1932 Model
1 x Twin mount on centreline, aft deck aft
1 raised mount
4 - 0.79" / 20.0 mm 60.0 cal guns - 0.27lbs / 0.12kg shells, 2,000 per gun
Anti-air guns in deck mounts, 1932 Model
2 x Twin mounts on sides, aft deck centre
2 raised mounts
Weight of broadside 19 lbs / 9 kg
Main DC/AS Mortars
5 - 859.80 lbs / 390.00 kg Depth Charges + 8 reloads - 4.990 t total
in Stern depth charge racks

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.00" / 25 mm 76.60 ft / 23.35 m 10.50 ft / 3.20 m
Ends: Unarmoured
Main Belt covers 68 % of normal length

- Box over machinery & magazines:
1.25" / 32 mm

- Conning towers: Forward 3.00" / 76 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 3,800 shp / 2,835 Kw = 20.08 kts
Range 4,599nm at 15.00 kts
Bunker at max displacement = 225 tons

Complement:
57 - 75

Cost:
£0.182 million / $0.728 million

Distribution of weights at normal displacement:
Armament: 10 tons, 1.8 %
- Guns: 4 tons, 0.7 %
- Weapons: 6 tons, 1.1 %
Armour: 110 tons, 19.3 %
- Belts: 37 tons, 6.6 %
- Armour Deck: 68 tons, 12.0 %
- Conning Tower: 4 tons, 0.8 %
Machinery: 102 tons, 17.9 %
Hull, fittings & equipment: 164 tons, 28.9 %
Fuel, ammunition & stores: 142 tons, 25.0 %
Miscellaneous weights: 40 tons, 7.1 %
- Hull below water: 20 tons
- Hull above water: 10 tons
- On freeboard deck: 5 tons
- Above deck: 5 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
955 lbs / 433 Kg = 70.8 x 3.0 " / 76 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 0.7 ft / 0.2 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.09
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has a flush deck,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.486 / 0.507
Length to Beam Ratio: 7.57 : 1
'Natural speed' for length: 14.36 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 21.00 degrees
Stern overhang: 1.39 ft / 0.42 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 15.00 %, 12.00 ft / 3.66 m, 10.00 ft / 3.05 m
- Forward deck: 35.00 %, 10.00 ft / 3.05 m, 8.00 ft / 2.44 m
- Aft deck: 37.00 %, 8.00 ft / 2.44 m, 8.50 ft / 2.59 m
- Quarter deck: 13.00 %, 8.50 ft / 2.59 m, 8.50 ft / 2.59 m
- Average freeboard: 8.93 ft / 2.72 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 67.7 %
- Above water (accommodation/working, high = better): 77.6 %
Waterplane Area: 2,696 Square feet or 250 Square metres
Displacement factor (Displacement / loading): 156 %
Structure weight / hull surface area: 33 lbs/sq ft or 162 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.87
- Longitudinal: 3.49
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Cramped accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform

Fantastic!!!!!

Excellent looking design.

I would ask though why you chose steam turbines over diesel engines.

Visually, it looks good. I have to wonder why the belt & deck armor, though: it seems.... unnecessary on a boat of this type, and might be better replaced with an additional 3" gun and more speed.

@ BruceDuncan: Good Idea

@ Hrolf Hakonson: Navarchos sent me the pic, which I then had to make an SS to fit. That is why no 2nd 3". And with the seakeeping already at 1.01 more speeds not really an option. So..if figured a 1" splinter belt to protect from small arms fire w/ just enough deck to cover the machinery/magazines wouldn't hurt. I agree it's not really needed and could easily be dropped, but for what?

I'd have to ask why a transom stern is present on the subchaser. It most likely wouldn't help at the speeds it is at, and the speeds it would be hunting subs, keeping them down and whatnot, would be more around 15 knots, where the transom would hurt fuel efficienicy.

I'm also curious what Greece feels the long range is needed for, but that would be more of a personal taste question.

Besides that, excellent sim and nice artwork!

Quoted

Originally posted by TexanCowboy
I'd have to ask why a transom stern is present on the subchaser. It most likely wouldn't help at the speeds it is at, and the speeds it would be hunting subs, keeping them down and whatnot, would be more around 15 knots, where the transom would hurt fuel efficienicy.

You need a speed advantage over surfaced submarines as well as submerged submarines - and larger fleet boats can have surface speeds in the 15 knot range. A 20 knot speed is a fairly normal speed for an AS escort.

The speed wouldn't be the issue here, the insertion of a transom stern would probebly be my problem with it.

I like the design, it's fairly sensible for the Eastern Mediterranean. I'd ditch the armour though, adds unnecessary cost to the design. I'd think about replacing the turbine drive with a reciprocating engine instead. It'll be easier and cheaper to build in large numbers and due to the low installed power won't increase weight too much. Single shaft shouldn't be a problem either.

Diesel engines, no armor, upped speed to eat extra hull strength. If I cut range the seakeeping drops, which makes me have to cut speed, which frees up extra hull strength, which is then wasted.

Velos, Greek Patrol Boat/Subchaser laid down 1940

Displacement:
325 t light; 339 t standard; 443 t normal; 527 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(180.00 ft / 174.00 ft) x 23.00 ft x (10.20 / 11.37 ft)
(54.86 m / 53.04 m) x 7.01 m x (3.11 / 3.47 m)

Armament:
1 - 3.00" / 76.2 mm 45.0 cal gun - 13.49lbs / 6.12kg shells, 250 per gun
Quick firing gun in deck mount, 1930 Model
1 x Single mount on centreline, forward deck forward
1 raised mount
2 - 1.57" / 40.0 mm 60.0 cal guns - 2.14lbs / 0.97kg shells, 1,000 per gun
Anti-air guns in deck mount, 1932 Model
1 x Twin mount on centreline, aft deck aft
1 raised mount
4 - 0.79" / 20.0 mm 60.0 cal guns - 0.26lbs / 0.12kg shells, 2,000 per gun
Anti-air guns in deck mounts, 1932 Model
2 x Twin mounts on sides, aft deck centre
2 raised mounts
Weight of broadside 19 lbs / 9 kg
Main DC/AS Mortars
5 - 859.80 lbs / 390.00 kg Depth Charges + 8 reloads - 4.990 t total
in Stern depth charge racks

Machinery:
Diesel Internal combustion motors, plus diesel motors,
Direct drive, 1 shaft, 4,400 shp / 3,282 Kw = 22.16 kts
Range 4,600nm at 15.00 kts
Bunker at max displacement = 188 tons

Complement:
47 - 62

Cost:
£0.174 million / $0.697 million

Distribution of weights at normal displacement:
Armament: 10 tons, 2.3 %
- Guns: 4 tons, 0.9 %
- Weapons: 6 tons, 1.4 %
Machinery: 118 tons, 26.5 %
Hull, fittings & equipment: 157 tons, 35.3 %
Fuel, ammunition & stores: 119 tons, 26.7 %
Miscellaneous weights: 40 tons, 9.0 %
- Hull below water: 20 tons
- Hull above water: 10 tons
- On freeboard deck: 5 tons
- Above deck: 5 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
595 lbs / 270 Kg = 44.1 x 3.0 " / 76 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 0.8 ft / 0.2 m
Roll period: 10.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.09
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has a flush deck,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.380 / 0.405
Length to Beam Ratio: 7.57 : 1
'Natural speed' for length: 14.50 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 21.00 degrees
Stern overhang: 1.39 ft / 0.42 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 15.00 %, 12.00 ft / 3.66 m, 10.00 ft / 3.05 m
- Forward deck: 35.00 %, 10.00 ft / 3.05 m, 8.00 ft / 2.44 m
- Aft deck: 37.00 %, 8.00 ft / 2.44 m, 8.50 ft / 2.59 m
- Quarter deck: 13.00 %, 8.50 ft / 2.59 m, 8.50 ft / 2.59 m
- Average freeboard: 8.93 ft / 2.72 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 97.6 %
- Above water (accommodation/working, high = better): 86.8 %
Waterplane Area: 2,487 Square feet or 231 Square metres
Displacement factor (Displacement / loading): 154 %
Structure weight / hull surface area: 34 lbs/sq ft or 164 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 4.26
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Cramped accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform

The drawing still has two shafts...

For a ship this size, I don't really think seakeeping needs to be above 1.00. Probably .80 is fine.

Quoted

Originally posted by Brockpaine
The drawing still has two shafts...

Ooops.

Quoted

Originally posted by Brockpaine
For a ship this size, I don't really think seakeeping needs to be above 1.00. Probably .80 is fine.

OK.

Velos, Greek Patrol Boat/Subchaser laid down 1940

Displacement:
370 t light; 386 t standard; 443 t normal; 489 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(180.00 ft / 174.00 ft) x 23.00 ft x (10.20 / 10.85 ft)
(54.86 m / 53.04 m) x 7.01 m x (3.11 / 3.31 m)

Armament:
1 - 3.00" / 76.2 mm 45.0 cal gun - 13.50lbs / 6.12kg shells, 270 per gun
Quick firing gun in deck mount, 1930 Model
1 x Single mount on centreline, forward deck forward
1 raised mount
2 - 1.57" / 40.0 mm 60.0 cal guns - 2.14lbs / 0.97kg shells, 1,200 per gun
Anti-air guns in deck mount, 1932 Model
1 x Twin mount on centreline, aft deck aft
1 raised mount
4 - 0.79" / 20.0 mm 60.0 cal guns - 0.26lbs / 0.12kg shells, 2,500 per gun
Anti-air guns in deck mounts, 1932 Model
2 x Twin mounts on sides, aft deck centre
2 raised mounts
Weight of broadside 19 lbs / 9 kg
Main DC/AS Mortars
5 - 859.80 lbs / 390.00 kg Depth Charges + 8 reloads - 4.990 t total
in Stern depth charge racks

Machinery:
Diesel Internal combustion motors,
Direct drive, 2 shafts, 5,800 shp / 4,327 Kw = 23.89 kts
Range 2,500nm at 15.00 kts
Bunker at max displacement = 104 tons

Complement:
47 - 62

Cost:
£0.215 million / $0.861 million

Distribution of weights at normal displacement:
Armament: 10 tons, 2.3 %
- Guns: 4 tons, 0.9 %
- Weapons: 6 tons, 1.4 %
Machinery: 155 tons, 35.0 %
Hull, fittings & equipment: 160 tons, 36.1 %
Fuel, ammunition & stores: 73 tons, 16.4 %
Miscellaneous weights: 45 tons, 10.2 %
- Hull below water: 20 tons
- Hull above water: 15 tons
- On freeboard deck: 5 tons
- Above deck: 5 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
353 lbs / 160 Kg = 26.1 x 3.0 " / 76 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 0.7 ft / 0.2 m
Roll period: 11.5 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.09
Seaboat quality (Average = 1.00): 0.80

Hull form characteristics:
Hull has a flush deck,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.380 / 0.394
Length to Beam Ratio: 7.57 : 1
'Natural speed' for length: 14.50 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 75
Bow angle (Positive = bow angles forward): 21.00 degrees
Stern overhang: 1.39 ft / 0.42 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 15.00 %, 12.00 ft / 3.66 m, 10.00 ft / 3.05 m
- Forward deck: 35.00 %, 10.00 ft / 3.05 m, 8.00 ft / 2.44 m
- Aft deck: 37.00 %, 8.00 ft / 2.44 m, 8.50 ft / 2.59 m
- Quarter deck: 13.00 %, 8.50 ft / 2.59 m, 8.50 ft / 2.59 m
- Average freeboard: 8.93 ft / 2.72 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 126.0 %
- Above water (accommodation/working, high = better): 86.8 %
Waterplane Area: 2,487 Square feet or 231 Square metres
Displacement factor (Displacement / loading): 121 %
Structure weight / hull surface area: 34 lbs/sq ft or 167 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.84
- Longitudinal: 4.34
- Overall: 1.00
Cramped machinery, storage, compartmentation space
Cramped accommodation and workspace room
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Personally, I would think two shafts preferable to this type of vessel rather than one - particularly with diesels rather than a steam powerplant.

It would be more maneuverable with a tighter turning circle (one shaft forward, one shaft aft). Depending on the engines chosen, four engines, two per shaft, would allow cruising on just two engines with two more available to come on line for speed.

Woomama!

.38 BC? That's very, very low. I would think .43 would be about right for this size ship.

I still don't like the transom, but that's a personal choice thing.

Note the extra hull strength that I can't ditch because I can't add range or it will be too long legged, nor can I add speed because the seakeeping will drop, nor can I cut BC because it would be too low.

Velos, Greek Patrol Boat/Subchaser laid down 1940

Displacement:
390 t light; 405 t standard; 470 t normal; 522 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(180.00 ft / 174.00 ft) x 23.00 ft x (10.20 / 10.93 ft)
(54.86 m / 53.04 m) x 7.01 m x (3.11 / 3.33 m)

Armament:
1 - 3.00" / 76.2 mm 45.0 cal gun - 13.50lbs / 6.12kg shells, 270 per gun
Quick firing gun in deck mount, 1930 Model
1 x Single mount on centreline, forward deck forward
1 raised mount
2 - 1.57" / 40.0 mm 60.0 cal guns - 2.14lbs / 0.97kg shells, 1,200 per gun
Anti-air guns in deck mount, 1932 Model
1 x Twin mount on centreline, aft deck aft
1 raised mount
4 - 0.79" / 20.0 mm 60.0 cal guns - 0.26lbs / 0.12kg shells, 2,500 per gun
Anti-air guns in deck mounts, 1932 Model
2 x Twin mounts on sides, aft deck centre
2 raised mounts
Weight of broadside 19 lbs / 9 kg
Main DC/AS Mortars
5 - 859.80 lbs / 390.00 kg Depth Charges + 8 reloads - 4.990 t total
in Stern depth charge racks

Machinery:
Diesel Internal combustion motors,
Direct drive, 2 shafts, 6,100 shp / 4,551 Kw = 23.31 kts
Range 2,500nm at 16.00 kts
Bunker at max displacement = 116 tons

Complement:
49 - 65

Cost:
£0.226 million / $0.905 million

Distribution of weights at normal displacement:
Armament: 10 tons, 2.2 %
- Guns: 4 tons, 0.9 %
- Weapons: 6 tons, 1.3 %
Machinery: 163 tons, 34.7 %
Hull, fittings & equipment: 171 tons, 36.4 %
Fuel, ammunition & stores: 80 tons, 17.1 %
Miscellaneous weights: 45 tons, 9.6 %
- Hull below water: 20 tons
- Hull above water: 15 tons
- On freeboard deck: 5 tons
- Above deck: 5 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
365 lbs / 166 Kg = 27.1 x 3.0 " / 76 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 0.7 ft / 0.2 m
Roll period: 11.9 seconds
Steadiness - As gun platform (Average = 50 %): 63 %
- Recoil effect (Restricted arc if above 1.00): 0.10
Seaboat quality (Average = 1.00): 0.80

Hull form characteristics:
Hull has a flush deck,
a normal bow and a round stern
Block coefficient (normal/deep): 0.403 / 0.417
Length to Beam Ratio: 7.57 : 1
'Natural speed' for length: 13.19 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 79
Bow angle (Positive = bow angles forward): 21.00 degrees
Stern overhang: 1.39 ft / 0.42 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 15.00 %, 12.00 ft / 3.66 m, 10.00 ft / 3.05 m
- Forward deck: 35.00 %, 10.00 ft / 3.05 m, 8.00 ft / 2.44 m
- Aft deck: 37.00 %, 8.00 ft / 2.44 m, 8.50 ft / 2.59 m
- Quarter deck: 13.00 %, 8.50 ft / 2.59 m, 8.50 ft / 2.59 m
- Average freeboard: 8.93 ft / 2.72 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 124.3 %
- Above water (accommodation/working, high = better): 82.6 %
Waterplane Area: 2,468 Square feet or 229 Square metres
Displacement factor (Displacement / loading): 123 %
Structure weight / hull surface area: 36 lbs/sq ft or 177 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 4.38
- Overall: 1.05
Cramped machinery, storage, compartmentation space
Cramped accommodation and workspace room
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Misc. weight? More depth charges?

Velos, Greek Patrol Boat/Subchaser laid down 1940

Displacement:
390 t light; 405 t standard; 470 t normal; 522 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(180.00 ft / 174.00 ft) x 23.00 ft x (10.20 / 10.93 ft)
(54.86 m / 53.04 m) x 7.01 m x (3.11 / 3.33 m)

Armament:
1 - 3.00" / 76.2 mm 45.0 cal gun - 13.50lbs / 6.12kg shells, 270 per gun
Quick firing gun in deck mount, 1930 Model
1 x Single mount on centreline, forward deck forward
1 raised mount
2 - 1.57" / 40.0 mm 60.0 cal guns - 2.14lbs / 0.97kg shells, 1,200 per gun
Anti-air guns in deck mount, 1932 Model
1 x Twin mount on centreline, aft deck aft
1 raised mount
4 - 0.79" / 20.0 mm 60.0 cal guns - 0.26lbs / 0.12kg shells, 2,500 per gun
Anti-air guns in deck mounts, 1932 Model
2 x Twin mounts on sides, aft deck centre
2 raised mounts
Weight of broadside 19 lbs / 9 kg
Main DC/AS Mortars
5 - 859.80 lbs / 390.00 kg Depth Charges + 8 reloads - 4.990 t total
in Stern depth charge racks

Machinery:
Diesel Internal combustion motors,
Direct drive, 2 shafts, 6,225 shp / 4,644 Kw = 23.42 kts
Range 2,500nm at 16.00 kts
Bunker at max displacement = 116 tons

Complement:
49 - 65

Cost:
£0.229 million / $0.916 million

Distribution of weights at normal displacement:
Armament: 10 tons, 2.2 %
- Guns: 4 tons, 0.9 %
- Weapons: 6 tons, 1.3 %
Machinery: 166 tons, 35.4 %
Hull, fittings & equipment: 163 tons, 34.7 %
Fuel, ammunition & stores: 80 tons, 17.1 %
Miscellaneous weights: 50 tons, 10.6 %
- Hull below water: 25 tons
- Hull above water: 15 tons
- On freeboard deck: 5 tons
- Above deck: 5 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
346 lbs / 157 Kg = 25.7 x 3.0 " / 76 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 0.7 ft / 0.2 m
Roll period: 11.9 seconds
Steadiness - As gun platform (Average = 50 %): 64 %
- Recoil effect (Restricted arc if above 1.00): 0.10
Seaboat quality (Average = 1.00): 0.80

Hull form characteristics:
Hull has a flush deck,
a normal bow and a round stern
Block coefficient (normal/deep): 0.403 / 0.417
Length to Beam Ratio: 7.57 : 1
'Natural speed' for length: 13.19 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 81
Bow angle (Positive = bow angles forward): 21.00 degrees
Stern overhang: 1.39 ft / 0.42 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 15.00 %, 12.00 ft / 3.66 m, 10.00 ft / 3.05 m
- Forward deck: 35.00 %, 10.00 ft / 3.05 m, 8.00 ft / 2.44 m
- Aft deck: 37.00 %, 8.00 ft / 2.44 m, 8.50 ft / 2.59 m
- Quarter deck: 13.00 %, 8.50 ft / 2.59 m, 8.50 ft / 2.59 m
- Average freeboard: 8.93 ft / 2.72 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 127.7 %
- Above water (accommodation/working, high = better): 82.6 %
Waterplane Area: 2,468 Square feet or 229 Square metres
Displacement factor (Displacement / loading): 119 %
Structure weight / hull surface area: 35 lbs/sq ft or 169 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.86
- Longitudinal: 4.17
- Overall: 1.00
Cramped machinery, storage, compartmentation space
Cramped accommodation and workspace room
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Personally, I think that's the best design, but it's your choice here.