The Jesse Too
The Crew
Assignments
Design Philosophy, Design Fabrication Hull
Shannon Jorgensen
Ariel Wise-Rios
Propulsion, Control
Tenzin Lama
Adam Martino
Trevor Coley
Patrick Scarlett
Life Support System, Safety, Testing and Training
Jennifer Ruth
Julia McKay
Jared Arcari
Journal and Budget
Jade Spitale
Nicole Vigorita
Sarah Bell
Danielle Gibbs
Goals & Objectives
 Form a cohesive team
 Design and make a submarine that is balanced,
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buoyant, safe, and fast
Certify the team by NAUI guidelines
Learn to work underwater using scuba gear
Experience a variety of testing situations and
conditions under water
Successfully race the course
Have fun while learning real world skills
Design Philosophy
 Our philosophy was to accommodate the largest
individual
 Made to be adjustable to any height
 This offered any crew member to pilot the sub if
they were interested
 And we want to win the race!
Hull
 11 feet long
 28 inches maximum diameter
 Hull construction is a 3-phase process: “plug,” mold,
and then the final hull
 Created in two halves then bonded and sealed
 Received help from Peter Legnos of LBI Inc., a local
company that designs and builds hulls
 Hull halves bonded and strengthened along seams
Propulsion System Components
The main components that make up the submarine’s
propulsion system include:
 The pedal
 Universal joint
 Pedal strap
 Right angle drive
 Crank
 Intermediate shaft
 Large front sprocket
 Propeller shaft
 Bicycle chain
 The propeller
Propeller Design
 Constructed “the trainer” to house the propulsion
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system until the hull of the vessel was completed
Goals: Reach a propeller speed of approximately 180
rpm that would generate the greatest thrust without
being unreasonable for our pilots to pedal for the
length of the course
Tested two different blades, five different tests in total
Performed all of our propulsion system testing at
Survival Systems in Groton, Connecticut
Concluded that steel propeller was more durable and a
better fit than aluminum
Drive Train
 Propeller motion driven by pilot through bike crank.
 Crank rotation-coupled by set of Curtis 200M 1.5:1
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bevel gears through a bike chain.
Primary sprocket-30 teeth
Total gear ratios: 3.5:1, 3.0:1, 2.7:1
Universal joints included where drive shaft connects to
the output of the gear box and where it attaches to the
propeller bearing housing.
Crank rate is expected to be between 60 and 70 rpm
Pilot Ergonomics
 Prone, facilitating a full view of race course
 Pilots will use shoulder restraints made from a
standard marching band drum frame to push
against when pedaling
 Restraints and propulsion system is adjustable to
accommodate pilots of different heights
Control System Components
 Two horizontal fixed fins on the rear of the vessel
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-Helps keep the submarine level while submerged
Two vertical rudders attached to the rear of the vessel
-Helps move the submarine left to right
Two horizontal rudders attached to the front of the vessel
-Helps move the submarine up and down
Modification to the hull of the submarine
Drilled holes on the top of the vessel to release the air exhaled
by the pilot
Openings on the bottom of the hull allow for flooding and
emptying the water during launch and recovery
Life Support System
Measured Air Consumption
Primary Air Tank Placement
Usage of traditional SCUBA equipment:
regulator, flippers, mask, air tank
Safety
Color: Lipstick Red
Escape: Escape hatch lined with PVC
Scuba Diving
Open Water Dive
Testing and Training
 SCUBA certification
 Sub Trainer- submersible trainer used to experiment
with drive train and propellers and give student initial
pilot training
 Student built out of wood to measure propulsion
parameters
 Used to determine pilots’ air consumption rates when
operating the drive train at max RPM
Propeller Thrust Tests
•Tested the propeller shape for impact shape and pitch has on thrust
Blade Type
Thrust at
180 rpm
(lbs)
Flat, 10 deg
30
Flat, 15 deg
51.9
Foil, 10 deg
61.5
Foil, 15 deg
62
Budget
Thank You!
From the Miss Jesse Too Crew