S.A.R.A.H.Survey And Recovery Autonomous Hovercraft

Overview - Capabilities

Maintain a straight course (within some error)

Scan a flat area for objects

Avoid water

FLOAT! (worst case)

Hovercraft Chassis

Circular platform

½” blue insulation foam core

(Tentative) fiberglass-layup outer body

Diameter TBD

Lift System

“Bag Skirt” hovercraft design

Rule 12V 4” bilge blower

235 CFM max.

May also be used for thrust (pending testing)

http://www.amazon.com/Rule-240-Marine-Blower-4-Inch/dp/B000O8D0IC/ref=sr_1_1?ie=UTF8&qid=1327987842&sr=8-1

Battery

11.1V 2200mAh 25C Li-Poly Battery Pack

25C = 55A continuous discharge rating

Ample Power!

http://www.amazon.com/11-1V-2200mAh-Li-Poly-Battery-Deans/dp/B0042GAWG0/ref=pd_sim__1

Metal Detector

Building a (good) metal detector is complex

Target size/weight achievable, but not in this time frame.

Simulated “metal” detection using omnipolar hall effect sensors and magnets.

Water Awareness

Tendrils

Schmitt triggers

Questions?