Maroon Harpoon Texas A&M University Ocean Engineering Department TAMU Human Powered Submarine 20091

Crew Members Alyssa Baker Duncan Brotzman Chris Dearing Sean Finn Casey Hodges (Team Leader) Alex Knoll James Lightfoot Abel Melledin David Neat Jeff Phillips Chris Ryan Robert Sanchez Sarah Schlosser (Team Leader) Cynthia Vittone Faculty Advisor: Dr. Robert E. Randall TAMU Human Powered Submarine 20092

Overview & Goals Design Speed – 7 knots – Achieved knots at ISR 9 – Goal for ISR 10 – 6 knots Improve drive train and propulsion system Add instruments to gather shaft RPM and torque data Develop team and leadership skills TAMU Human Powered Submarine 20093

Design Philosophy TAMU Human Powered Submarine Achieve higher speeds than any TAMU submarine team in the past Reduce drag yet still accommodate a pilot of up to 5’ 10” Gain valuable team building experience Have fun at ISR 10

Design and Fabrication Hull Fabrication Propulsion System Instruments Control System TAMU Human Powered Submarine Restraint System Life Support Systems Safety Features

Hull Fabrication Lathing Male plug Foam block – 50” x 30” x 120” – 4 lb/ft 3 Custom built lathe TAMU Human Powered Submarine 20096

Hull Fabrication Fiberglass Layup TAMU Human Powered Submarine Sandwich construction – 3 layers Kevlar with Epoxy Resin – Closed cell syntactic foam – 2 layers Kevlar with Epoxy Resin

Hull Fabrication Fiberglass Layup Vacuum bag technique – Wrap plug with release material – 2 layers cure – Syntactic foam – Apply filler – Apply 3 layers TAMU Human Powered Submarine 20098

Propulsion Drive Train TAMU Human Powered Submarine Cyclical gear box – 3:1 and 4:1 ratios Direct drive Brand new drive shaft

Propulsion Rear Bearing Secured by tightening against hull 2 glass bearings – No corrosion – No grease required TAMU Human Powered Submarine

Propulsion Propeller Hub TAMU Human Powered Submarine Nylon Knob Propeller Attachments Follower Worm Gear Shaft Angled Grooves

Propulsion Propeller Twin knife blade propeller 2 sets of carbon fiber propellers – 12” – 10.75” 1 set of stainless steel propellers – 9.5” TAMU Human Powered Submarine

Instruments Measure torque – Torque sensor Measure RPM – Accelerometer – Hall effect sensor Electronics Housing – Houses circuit board – Hall effect sensor – Accelerometer Data stored on SD card TAMU Human Powered Submarine

Control System 3 Degrees of control – Pitch – Yaw – Roll Steering column Control mechanism 4 control surfaces TAMU Human Powered Submarine

Pilot Restraint System Shoulder Restraint – 3 degrees adjustable Lap Belt TAMU Human Powered Submarine

Pilot Life Support System 60 ft 3 SCUBA Tank 8 ft 3 Spare Air TAMU Human Powered Submarine

Safety Features Submarine Safety Markings – Hatches – Control Surfaces – Control Surface Guard – Propeller Strobe Light Emergency Buoy TAMU Human Powered Submarine

Safety Features Strobe and Emergency Buoy Strobe Light – Visible 360° Emergency Buoy – Alerts crew to injured pilot TAMU Human Powered Submarine

Testing Offshore Technology Research Center (OTRC) Located in Research Park on Texas A&M Campus TAMU Human Powered Submarine

Training Pilot training – Emergency Egress Assisted Unassisted – Piloting Crew training – Pilot Rescue Unconscious Conscious – Launch – Recovery TAMU Human Powered Submarine

Budget Cash Donations = $8000 In kind donations ~$30,000 – Kevlar – Resin & Hardener – Nose cone – Driveshaft, Propeller hub, Bearing TAMU Human Powered Submarine

Sponsorship Oceaneering Intervention Engineering Offshore Technology Research Center (OTRC) Ocean Engineering Division Zachry Department of Civil Engineering Paradise Scuba MTS (Houston Section) SNAME (Texas Section) Diab Group DUNA USA Inc. Trepan Tools Texstars Inc. Baumann Propellers Penske Montgomery Monograms TAMU Human Powered Submarine