Julio Cesar Tello, Great Colombia escort destroyer laid down 1943,
launched 1943, completed 1943 (engine 1943)
Displacement:
873 t light; 928 t
standard; 1 138 t normal; 1 306 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(294,90 ft / 289,37 ft)
x 29,53 ft x (10,50 / 11,54 ft)
(89,88 m / 88,20 m) x
9,00 m x (3,20 / 3,52 m)
Armament:
2 - 5,00" / 127 mm 38,0
cal guns - 55,12lbs / 25,00kg shells, 250 per gun
Dual purpose guns in deck and hoist mounts,
1932 Model
2 x Single mounts on centreline ends, evenly
spread
6 - 1,46" / 37,0 mm
57,0 cal guns - 1,63lbs / 0,74kg shells, 2 500 per gun
Anti-air guns in deck mounts, 1936 Model
1 x Twin mount on centreline, aft deck aft
1 raised
mount
2 x Twin mounts on sides, forward deck aft
2 raised
mounts
4 - 0,79" / 20,0 mm
70,0 cal guns - 0,27lbs / 0,12kg shells, 4 500 per gun
Anti-air guns in deck mounts, 1934 Model
2 x Single mounts on sides, aft deck centre
2 raised
mounts
2 x Single mounts on sides, forward deck
centre
2 raised
mounts
Weight of broadside 121 lbs
/ 55 kg
Main Torpedoes
4 - 21,0" / 533 mm,
18,83 ft / 5,74 m torpedoes - 1,324 t each, 5,297 t total
In 1 sets of deck
mounted centre rotating tubes
Main DC/AS Mortars
2 - 421,08 lbs / 191,00 kg
Depth Charges + 48 reloads - 9,399 t total
in Stern depth charge
racks
2nd DC/AS Mortars
2 - 421,08 lbs / 191,00 kg
Depth + 24 reloads - 4,888 t total
in Depth charge
throwers
3nd DC/AS Mortars
2 – 65,00 lbs / 29,48 kg
Rocket Depth Charges + 88 reloads – 2,876 t total
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist
(max)
Main: 0,98" / 25 mm - 0,98" / 25 mm
Machinery:
Diesel Internal
combustion motors,
Geared drive, 2 shafts,
12 000 shp / 8 952 Kw = 27,31 kts
Range 5 800nm at
15,00 kts
Bunker normal = 210
tons, at max displacement = 379 tons
Complement:
97 - 127
Cost:
£0,553 million / $2,214
million
Distribution of weights at normal displacement:
Armament: 62 tons, 5,4%
- Guns: 32 tons, 2,8%
- Weapons: 30 tons, 2,6%
Armour: 5 tons, 0,5%
- Armament: 5 tons, 0,5%
Machinery: 310 tons,
27,2%
Hull, fittings &
equipment: 493 tons, 43,3%
Fuel, ammunition &
stores: 265 tons, 23,3%
Miscellaneous weights:
3 tons, 0,3%
- Hull below water: 3 tons
- On freeboard deck: 0 tons
Overall survivability and seakeeping ability:
Survivability
(Non-critical penetrating hits needed to sink ship):
824 lbs / 373 Kg = 13,2 x 5,0 " / 127 mm
shells or 0,5 torpedoes
Stability (Unstable if
below 1.00): 1,11
Metacentric height 1,0
ft / 0,3 m
Roll period: 12,5
seconds
Steadiness - As gun platform (Average = 50 %): 74 %
-
Recoil effect (Restricted arc if above 1.00): 0,37
Seaboat quality (Average = 1.00): 1,18
Hull form characteristics:
Hull has a flush deck,
a normal bow and large transom stern
Block coefficient
(normal/deep): 0,444 / 0,463
Length to Beam Ratio:
9,80 : 1
'Natural speed' for
length: 19,58 kts
Power going to wave
formation at top speed: 62 %
Trim (Max stability =
0, Max steadiness = 100): 63
Bow angle (Positive =
bow angles forward): 16,70 degrees
Stern overhang: 1,02 ft
/ 0,31 m
Freeboard (% = length
of deck as a percentage of waterline length):
Fore
end, Aft end
- Forecastle: 18,00%, 15,03 ft /
4,58 m, 13,02 ft / 3,97 m
- Forward deck: 32,00%, 13,02 ft / 3,97
m, 12,01 ft / 3,66 m
- Aft deck: 36,00%, 12,01 ft / 3,66 m, 12,01 ft / 3,66 m
- Quarter deck: 14,00%, 12,01 ft /
3,66 m, 12,01 ft / 3,66 m
- Average freeboard: 12,50 ft / 3,81 m
Ship tends to be wet
forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low =
better): 99,8%
- Above
water (accommodation/working, high = better): 120,8%
Waterplane Area:
5 633 Square feet or 523 Square metres
Displacement factor
(Displacement / loading): 156%
Structure weight / hull
surface area: 48 lbs/sq ft or 236 Kg/sq metre
Hull strength
(Relative):
-
Cross-sectional: 0,90
-
Longitudinal: 3,09
- Overall:
1,02
Adequate machinery,
storage, compartmentation space
Excellent accommodation
and workspace room
Ship has slow, easy
roll, a good, steady gun platform
Juan Cesar Tello (1943)
Santiago de Gebara (1943)
Juan Stolzmann (1943)
Hiram Bingham (1943)
Alexander von Humboldt (1944)
Antonio Raimondi (1944)
Max Uhle (1944)
Constantino Jelski (1944)