The original idea was to build a 1:96
scale kit hull, but as things turned out, it went of the marked. I then
bought the blueprints in 1:96 scale, scanned them into the computer, and
enlarged it to 1:81. More about the scratch considerations can be read
in the
chapter "Initial
considerations of scratch building"
The table below shows the hard facts about my submarine, build from a
paper sketch to a complete, fully operational model.
| Planning begun: |
November 2002 |
| Laid down: |
January 2003 |
| Launch: |
Estimate pending re-build of
internal parts. |
| |
|
| Scale: |
1:81 |
| Length: |
82,9" (
210,7 cm.) |
| Beam: |
8,27" (
21 cm.) |
| Weight, air filled
ballast tank: |
Estimate pending re-build of
internal parts. |
| Weight, flooded
ballast tank: |
Estimate pending re-build of
internal parts. |
| Minimum / normal draft: |
?? “ ( ?? cm.) /
5,1" ( 13 cm.) |
| Normal
max. dive dept: (Note
1)
|
9.8 ft. ( 3 m.)
(Can be increased to max. 82 ft. ( 25m.) by adjusting the onboard
regulated air pressure, and by increasing radio range.) |
| Tested crush
depth:
|
82 ft. ( 25 m.)
(Tested to 2.5 bar / 2.467 atm.)
(In scale, that's equal to 6642 ft. / 2.025 m.) |
| Number of parts:
(Note
2) |
Estimate pending re-build of
internal parts. |
| |
|
| Propulsion: |
1 electrical engine and
1 seven bladed propeller.
1 high performance bow thruster |
| Dive
system:
|
Static
and dynamic. Pressurized water & air / CO2 |
| |
|
| Battery type ; specs: |
NiMH ; 1,2 V / 4½ Ah pr. cell |
| Battery configuration: |
10 cells in series, parallel with
another 10 cells in series. |
| System voltage /
capacity:: |
12 VDC /
App. 9 Ah |
| Estimated average operating time: |
3 -> 5 hours. (
Continuous run.) |
| Minimum operating water temp:
(Note 3) |
50 *F ( 10 *C )
|
Note 1) Radio range limits the normal diving
depth. The compartments and onboard compressed air system has been
tested to endure 2.5 bar, the pressure at 82 ft. (25m.).
To read more
about WTC pressure calculation, click here.
To read more about the compressed air system, click here.
To read more about the radio range, click here.
Note 2) The engine,
regulator, receiver, 2 x servo,
failsafes, 3 x valve are all counted as
"1 part each", as I don't know the individual number of internal parts
of these components. An estimate could be another 150 -> 200 parts.
Note 3) The minimum operating temperature is determined by the
following factors:
A) As pressurized air absorbs heat when it’s allowed to re-expand, the tubes just outside the tank is cooled. In order to prevent ice blocks inside the tubes caused by freezing moisture
in the air, do not operate the sub in water below this
temperature.
B) Batteries tend to decrease their capacity as temperature drops.
|
