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Testing

The Girlscouts have decided to start a new campaign in which they spread Girlscout propaganda around Max’s workshop (and paint it on our car windows).

We put Scout on Brendan’s car to bring it to Nanaquaket pond for a bit of testing. We set a zigzag course of about two miles for Scout to follow.

We started at around 7 o’clock and ran Scout for about two hours. During this time we tested a number of its functions, including:

Point to point navigation

EEPROM write functions (so that Scout doesn’t forget what the next waypoint is if the battery runs flat)

“Backdown” sequence that reverses the motor for 30 seconds every few hours in attempts to shed weeds and other debris

Wireless command recognition and wireless data logging (this will be useful for our longer tests)

Steering sensitivity (we don’t want to be overcorrecting with the rudder.)

The tests went very well; we were able to collect some baseline information about power consumption and Scout’s handling. Our plan is to bring it to Cuttyhunk from Tiverton this weekend, to test the bugfixes that we made and give us enough time to test a few new features.

We’re still working away

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Sorry for the few updates in the last few days but we’ve been working too late to stay and write posts after we’re done. We’ve been testing on the water a bit and are coordinating a 25 mile test this for this weekend. More coming soon.

First water testing

SCOUT on the news

For those of you who missed it, here’s the video!

SCOUT on the news!

Last night, as we were driving back from Henry’s shop after putting Duratec on the hull (see previous update), we ended up missing the airing of SCOUT on WPRI Eyewitness News. We returned home to find the whole crew of Girl Scouts throwing a party for us, which we really appreciated. However, it turns out that they were watching channel 10 news instead of channel 12, so they missed it as well. Fortunately, Dan’s mom set her DVR to record it, so we moved the party to their house.

Boston Museum of Science

Last Saturday, Lucy, Matt, and Dylan visited the Boston Museum of Science to check out some of the exhibits.

This interactive display shows us the Gulf Stream. And hopefully the direction that Scout will take…

 

Matt and Lucy finding the precise angle and conditions for peak solar collection. Unfortunately a group of six year old children wanted to play with the buttons so we had to relinquish the optimization station before we were finished collecting data….

Recent progress….

The best way to view this update may be to click on the first image and continue from there.

Bulb pour

Tonight the crew poured the lead bulb (green in the image below) that will be attached to the keel (blue). From left to right: Brendan, Matt, Mike, Max, Dan, Dylan, and Quinn. The 22lb bulb is designed to right Scout when it flips over.

Rudder Build

Last night the 3D compass was installed.  The servo was then powered on and temporarily attached to the steering linkage, and we tested the system a bit by rotating Scout, which caused the onboard computer to compensate from the deviation by turning the rudder.  Another small hurdle overcome by the Scout team.

 

Keel reinforcements

In the last week or so, our biggest victory has been the installation of the keel. The carbon reinforcements and tapings that we’ve done are colored in blue. The large patch to the bottom of the boat is unidirectional carbon, the tapes are 45° carbon. The bright green structure is built in preparation for the deck installation- this carbon will be glued to the inside skin of the deck and help spread forces through the perimeter of the deck.


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