1. Solar Boat Second meeting
2016

2. Questions? When do you want to have meetings – Tuesday won’t work.
We build the boat November 7 or 8. Which day works better – Saturday or Sunday.
Know – skipper must pass swim test (50m swim, tread water 1 min)
Perfect Skipper weight is 132 lbs

3. The Boat
Motor Support?
Cooling Systems for solar panels, batteries, and motor
Moveable solar panels
Steering ?
Where shaft goes through hull ?????
Tube around propeller to direct thrust to the rear
Gear ratio for both endurance and speed
Which propeller
Hard, slick Paint
As horizontal as possible
Mount motor low (for balance) but high enough to prevent any water reaching it
Small support

4. Design Teams Mechanical Drive Train – Gearing, shaft, seal, propeller
Pick gear ratios to try for both endurance and speed
Steering
Throttle
Safety (floatation, bilge pump, signaling, etc.)
Design of Parts, find and order parts
Know the mechanical rules pertaining to the boat
Technical Report

5. Design Teams Electrical
Solar / Electrical Design – Electrical Systems and Connections.
Wire sizes and lengths, hookups, etc.
Pick Batteries (Odyssey 925, 28 AH) Maximum 25kg (55 lbs.) Need 2 sets minimum. Amp Hour (AH) rating and surge power is important.
Pick Solar Panels (efficiency not as important – weight and temp. coefficient is important.
We have motors (Perm PMG-132).
Know the electrical rules pertaining to the boat
Technical Report

6. Design Teams Hull Steering, throttle, dead mans stick)
Safety, comfort and efficiency of skipper
Need to pick a paint (Interlux VC Offshore looks good – dries very hard, burnishible, and contains silicone to make the boat slippery)
Skipper comfort, safety, and efficiency
Layout of components (balance – fore/aft and left/right, electrical connections – short runs, thick wires from battery to motor, etc.)
Know the rules pertaining to the boat
Help with Technical Report

7. Everybody Help with the video Color and Design of the Boat
Ways to reduce drag and improve the boat
Drivers – Testers, Racers (Long Distance and Sprinters)

8. Some Requirements Boat Max weight 450 lbs
Boat cannot heal more than 15 degrees with 10 kg at one side
Have bilge pump (500 GPH for 2 hours), fire extinguisher, floatation, life vest, dead mans switch, paddle, two signal devices (audible and visual)
Power to motor stops when throttle is released
Can’t modify external dimensions
Engine, batteries, drive shaft, propeller rear of bulkhead
Instruments, steering, skipper forward of bulkhead
Solar panels
Cannot extend more than 36 cm (14 in) from gunwale
320 W maximum
Can’t be attached to the boat with Velcro.
Battery
55 lbs total weight
24V maximum
Lead Acid

9. Schedule Dates Tentative
Boat Building Workshop (team) Nov 7 or 8
Rookie Workshop (teachers) Nov 21
First Technical Workshop (team) Dec 12
Technical Report #1 – Drive train/Steering (team) Dec 18
Second Technical Workshop (team) Jan RSVP (teachers)??
Technical Report #2 – Solar/Electrical (team) Feb 17
Liability Forms (team) Mar 19
PSA Outline (team) Feb 19
PSA Video (team) Apr 16
Boat Inspection Day & Swim test (team) Apr 30
Boat Expenditures (teachers) May 7
Solar Cup races (team) May (Fri-Sun)