Project Log: Saturday,
November 20, 2010
Over the past week or so, as time allowed, I managed to
complete the specifications and measured drawings for
the new tankage--six tanks in all. Being a student
of the pre-computer 80s, and with little interest in and
need for fancy (i.e. modern) design techniques, I
hand-drew (gasp!) the tankage drawings, knowing
full well that any attempts on my part to use one of the
widely-available CAD-type programs would end in
frustration and unnecessary delays.
I made additional evolutionary changes to the new
tankage designs for the engine room. In an effort
to simplify the design and construction, with minimal
reduction in effective tank volume, I decided to change
the outboard sides of the tanks from three facets (as
seen in my cardboard templates of late) to only two.
I thought the extra volume gained from the more complex
shape simply wasn't worth it; the two-sided outboard
shape followed the shape of the hull closely enough.
With the designs completed, my next step would be to
compile the specifications and measured drawings,
carefully check the various specs, and send the designs
off to one or more tank manufacturers for quotations and
final design manipulation as necessary.
Here are the finished designs for the tanks. Note:
all specifications and information subject to change.
|
Forward Water Tank
(centerline, forward cabin) |
PDF Version: Click Here |
PDF Version: Click Here |
Specifications:
1. One baffle along longitudinal centerline
2. 8" inspection port on each side of baffle, as
shown
3. All fitting locations to be supplied with flush
threads as shown
4. Supply: Dip tube in location shown; 1/2"
NPT
5. Fill: 1-1/2" NPT
6. Vent: 1/2" NPT
7. Drain: 1/2"NPT |
Port Water Tank
(port aft, engine room) |
PDF Version: Click here |
Specifications:
1. Dimensions as shown
2. Install 8" inspection port as
shown
3. All fitting locations to be flush
with specified threads
4. Drain: 1/2" NPT
5. Supply: Dip tube with 1/2" NPT
6. Fill: 1-1/2" NPT
7. Vent: 1/2" NPT
|
Starboard Water Tank
(starboard aft, engine room) |
PDF Version: Click here |
Specifications:
1. Dimensions as shown
2. Install 8" inspection port as
shown
3. All fitting locations to be flush
with specified threads
4. Drain: 1/2" NPT
5. Supply: Dip tube with 1/2" NPT
6. Fill: 1-1/2" NPT
7. Vent: 1/2" NPT
|
Aft Fuel Tank
(centerline, engine room) |
PDF Version: Click here |
|
Specifications:
1. Dimensions as shown
2. Install longitudinal baffle along
tank centerline
3. Install 8" inspection port on
each side of tank top, as shown
4. All fitting locations to be
flush with specified threads
5. Drain: install threads for 1/2"
NPT on forward lower side of tank
6. Fuel pickup: copper dip tube
with 3/8" NPT threads in location shown
7. Fuel return: 3/8" NPT threads in
location shown
8. Fuel vent: 1/2" NPT threads in
location shown
9. Fuel fill: 1-1/2" NPT threads in
location shown
Note: tank to meet or exceed all applicable
ABYC standards for diesel fuel
|
Port Fuel Tank
(port forward, engine room) |
PDF Version: Click here |
|
Specifications:
1. Dimensions as shown
2. Install longitudinal baffle along
tank centerline
3. Install 8" inspection port on
each side of tank top, as shown
4. All fitting locations to be
flush with specified threads
5. Drain: install threads for 1/2"
NPT on forward lower side of tank
6. Fuel pickup: copper dip tube
with 3/8" NPT threads in location shown
7. Fuel return: 3/8" NPT threads in
location shown
8. Fuel vent: 1/2" NPT threads in
location shown
9. Fuel fill: 1-1/2" NPT threads in
location shown
Note: tank to meet or exceed all applicable
ABYC standards for diesel fuel
|
Starboard Fuel Tank
(starboard forward, engine room) |
PDF Version: Click here |
|
Specifications:
1. Dimensions as shown
2. Install longitudinal baffle along
tank centerline
3. Install 8" inspection port on
each side of tank top, as shown
4. All fitting locations to be
flush with specified threads
5. Drain: install threads for 1/2"
NPT on forward lower side of tank
6. Fuel pickup: copper dip tube
with 3/8" NPT threads in location shown
7. Fuel return: 3/8" NPT threads in
location shown
8. Fuel vent: 1/2" NPT threads in
location shown
9. Fuel fill: 1-1/2" NPT threads in
location shown
Note: tank to meet or exceed all applicable
ABYC standards for diesel fuel
|
| |
Total Time Today: 3 hours
|
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