Norm,
The initial fabrication of the boat is complete and I
have started a series of commissioning test. She has been in the water for
the initial tea bag test. For the last 6 months I have been building a house
with me son so have not done any further work on the boat. I hope to
be back on the test program after my son and family have moved into their
new house. Initial test confirmed basic buoyancy states and hull/hatch
integrity and identified a bad solenoid valve.
The goal of this
project was to design a one-man submersible, designated R300, following ABS
regulations as much as possible( but not to the point of classing) that
would be streamlined to reduce drag and entanglements and have adequate
power for maneuverability using control surfaces. In other
words, an underwater jet ski. I have four years invested to this
point, two in design and two in fabrication.
Fiberglass
Reinforced Plastic, over syntactic foam, is used for the hydrodynamic shell
that covers the pressure hull. There are two ballast tank systems, main and
variable, which are soft and hard respectively. The main ballast tank,
comprising tanks forward and aft, are located at the longitudinal center of
gravity of the boat. Likewise, the Variable Ballast Tank is also located at
the longitudinal center of gravity. Both the MBT and the
VBT are blown with air from four Catalina S-19 scuba tanks, regulated down
to 25 psi above ambient water pressure. Longitudinal trim
is achieved by hydraulically articulating a sliding lead trim weight. A 120
VDC hydraulic power unit supplies high-pressure hydraulic fluid to power
hydraulic cylinders on control surfaces and the hydraulic motor that
articulates the trim weight. Boat systems are integrated and controlled
through an on board Programmable Logic Controller with a touch screen
operator interface. The propulsion system utilizes an axial jet-ski
impellor. The jet-ski nozzle is used for pitch and yaw control while wing
mounted ailerons are used to control roll. A 13 HP, DC
series wound motor, connected to ten 12 VDC deep draft AGM marine batteries,
is used to drive the jet-ski impellor. The motor is controlled with a MOSFET
DC motor control unit. A drive shaft connects the drive motor to the jet
pump. A hull seal around the drive shaft is a cartridge
type double mechanical seal with an glycol coolant acting as a barrier fluid
between the seals.
Specifications for
the R300 are given below:
R-300 SPECIFICATIONS
<!--[if
!supportEmptyParas]--> <!--[endif]-->
* 24 inch acrylic hemispherical view port * 13 hp DC
motor * Jet Impellor * MOSFET DC motor controller * 120 VDC main battery
system *24VDC Emergency battery system * Water Hard Variable ballast
system * Drop weight system *
Fly-By-Wire Control System * Air systems * Oxygen system * Carbon
Dioxide scrubber * Touch Screen Operator Panel/Display * Carbon dioxide
& Oxygen level monitors * VHF Radio * Alarm and
monitoring systems * Mechanical and electronic depth
meters * Electronic compass * Trim and heel indicators * External halogen
lights * Fire Extinguisher * Onboard battery chargers *
<!--[if
!supportEmptyParas]--> <!--[endif]-->
TECHNICAL DATA
<!--[if
!supportEmptyParas]--> <!--[endif]-->
MAIN
DIMENSIONS
Length 19 ft
Beam 6.5 ft
Height 4.1 ft
Draft 31 in
Pressure Hull diameter
30 inches
Pressure Hull
material
ASTM A516 Grade 70
Pressure Hull
thickness
0.25 inches
Dry weight (excluding payload and
pilot) 4,214 lbs
Operational depth 300
ft
Payload capacity (including
pilot)
232 lbs
Drop weight
300 lbs
Crew 1
<!--[if
!supportEmptyParas]--> <!--[endif]-->
PROPULSION & POWER
SUPPLY
<!--[if
!supportEmptyParas]--> <!--[endif]-->
Jet
pump
Jet pump, axial flow, single stage
DC
motor
13 hp DC motor with MOSFET motor controller
Main batteries
10 @100 Ah / 120VDC
Emergency battery 2 @100 Ah / 24VDC
Battery endurance
7 hrs (normal operation)
Emergency battery endurance
72 hrs (hotel load only)
<!--[if
!supportEmptyParas]--> <!--[endif]-->
GAS SYSTEMS
<!--[if
!supportEmptyParas]--> <!--[endif]-->
Main ballast - Soft
7.6 scf
Variable ballast - Hard 1.8
scf
Air 76
scf / 207 bar
Oxygen
78 scf / 139 bar
Oxygen endurance
7+72 hrs
Reserve of
Buoyancy
10.7%
<!--[if
!supportEmptyParas]--> <!--[endif]-->
PERFORMANCE
<!--[if
!supportEmptyParas]--> <!--[endif]-->
Normal
speed
7 knots (8 mph) for 8 hrs
Max
speed
20+ knots for 9 minutes
Range 66 miles (normal
operations)
<!--[if !supportEmptyParas]-->
Cliff
-----
Original Message ----
From: Norman <nparmley@suddenlink.net>
To:
personal_submersibles@psubs.org
Sent: Wednesday, July 11, 2007 11:18:51
PM
Subject: [PSUBS-MAILIST] Interest in your project
Cliff Redus:
Hi,
Cliff can I get more info on your
project. It looks vry interesting.
Norm
Parmley
************************************************************************
************************************************************************
************************************************************************
The
personal submersibles mailing list complies with the US Federal
CAN-SPAM
Act of 2003. Your email address appears in our
database
because either you, or someone you know, requested you receive
messages
from our organization.
If you want to be removed from
this mailing list simply click on the
link below or send a blank email
message
to:
removeme-personal_submersibles@psubs.org
Removal
of your email address from this mailing list occurs by an
automated
process and should be complete within five minutes of
our server
receiving your request.
PSUBS.ORG
PO Box 53
Weare,
NH 03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************