SECRET NEW A/C?

Answering A Blog Site Question....

"Care to share the specifics of your solar electric air conditioning system? There is no mention of the system on the website you linked."

Talk about not seeing the forest for the trees! All of the writings about the Totally Solar Electric MOG boat and barely mentioned is the wonderful fact that the boat has real cooling air conditioning, yes A/C. Our fault.

Notice the small window AC unit in the aft starboard window.

It is easily moved to any of the over 12 window positions.

Sometimes, things here at MOG are taken for granted, such as the creature comforts placed aboard the boat. People are simply aghast when they hear there is AC and moreover it works well. Also, no trawler type boat, that is low on fuel, is going to run the generator for air conditioning. That same idea applies to a MOG. If there is insufficient fuel (solar replenishment) to continue propulsion for a journey, the A/C is turned off. That said, when the breezes from traveling stop and the humidity is creeping up your back and coming down as sweat, the MOG can definitely turn on the cool.

Stacked in their hiding place, two $99,  5,000 Btu AC units 

awaiting posting to their respective windows.

In fact the brighter the sun, the more energy is developed for cooling the captain and crew. This is not magic but simply the solar electric array making copious sun driven energy into the battery bank, to the inverter, to the 5,000 Btu window AC unit ($99 at HH Gregg, Home Depot, Walmart or similar). What? You thought that it would be some super-sophisticated Lithium Bromide Absorption System or maybe even Kryptonite/Solar Electric? Nope.

West Marine offers this raw water cooled AC, 115 volt unit for a bit over $1,100.

Why a plastic, common and inexpensive window air conditioner? First, the folks at CruiseAir make very good marine AC units. In fact I had one aboard the MOG when it was 30 feet (before the stretch to 40 feet). The compact under floor 5,000 btu unit worked just fine and had no problems. It was built very well and served until the day we put the boat aground for the night. After a few minutes the unit had no water running through the submerged water-cooling intake... the tide was out. Immediately the unit was shut off. Secondly, without the boat's hull immersed in water, there was no way to cool the refrigerant as it was being recirculated for the refrigerant's next cooling cycle. The AC unit was fine and sold to another boater.

West Marine's new 12 volt DC, raw water cooled, 6,000 btu AC unit for about $2,200.

Therefore, if one is to ground the boat, marine air conditioners using water that supports the hull cannot be used without even greater system complication. Several companies make very nice portable AC units for boats but they do not fit the physical envelope and shape of the MOG. The Haier and other small window types are all within an inch of fitment dimensions and use nearly the identical amounts of power.

The small units are less expensive to replace than they are to have serviced. Take them back to  the box store for disposal and buy a new one. That was my idea when I got a quote for cleaning the raw water intake of the original marine AC unit. For the price of the cleaning procedure, I could buy a new window air conditioner.

The window AC units are not called 'portable' but actually weigh less than some portable marine ACs and are very easy to install and remove from the MOG's custom window support. In fact, we take them out when making a journey and just pop it in, if used for the night or day once we are settled.

The inexpensive window AC units are now nicely designed and have a very small window profile and do not overhang the side decks of the boat. The front unit sits in the center window of the bow window group and has often been left there throughout daytime travels.

Barely visible is the center window mounted 5,000 btu AC unit.

At night the aft side windows allow a 5,000 btu unit to be positioned so effectively around the bed that it is run on low/slow, remaining on all night and not draining the large battery banks. Proper window shades that have high rejection of solar heat gain are used in the windows to reduce the load on the AC unit. New types of shades are always being swapped and measured for increased insulation value. The quest for using less and less power never ends.

Thanks for the question from 'Truth Is Not A Compromise' from a different forum to which MOG subscribes.

SHOW & NOSHOW 2015

MOG's 1st NOSHOW

Can you find the 40 foot MOG solar boat in the rain?

Click on the picture to enlarge.

As written in the April 13, 2015 blog entry, a few boat shows in April and May would kick off the MOG getting some water moving under the skegs.

The totally solar electric powered yacht was washed and prepared on April 17th for the Cape Fear Community College annual Boat Show. The weather was quite cloudy with projections for rain. The forecast was most accurate. The morning of our departure of barely 1 mile, was marred by rain and light wind. Although this was tolerable for the boat and crew it was not a good choice for MOG appearing at the CFCC Boat Show of April 18th.

The boat show was situated on Water Street in the CFCC parking lot, close to across the street parking. Our problem was we were the only ‘in water’ boat with a location at the end of the CFCC commercial type dock and a steep aluminum access ramp to the floating dock at which we were to tie off the boat. Asking folks to walk another 1,000 feet, risking a slip on the ramp and getting soaked in the process was not the best idea. In the interest of all concerned and a modicum of safety, the CFCC gates to the docks remained locked. The MOG stayed in her slip.

Out of the good number of attendees, a few people were at the show had worked on the original 30 foot MOG (before being stretched to 40 feet). Others met at the show had boats built by Nelson Silva, builder of many Simmons type skiffs and built the original MOG 30 foot version. Many folks owning T.N. Simmons’ boats were there  also. T.N. Simmons is the man who made the original Simmons Sea Skiffs that were a signature craft for the sounds and rivers of the greater Wilmington area for decades.

Those boat lovers that visited the show could see and touch a wide variety of very fine wooden boats, most of which were built locally, including the MOG. We have done the CFCC show a number of times in fair weather with other great wooden boats at their floating dock, it just was not in the weather forecast for this year. Pictures below should redisplay enlarged when 'clicked' upon.

Stretched along Water St. in Wilmington, NC wooden gems sparkled in the rain.

The boats trailered to the show were lining the lawn and the whole parking lot with a few small pop up tents. There were a number of displays for safe boating, not to mention the boatbuilding school and marine power classrooms were open for the visiting public with boat and engine work in progress.

A pram bowed boat with a knotted fender starts this row of boats.

Two boats shown were quite a contrast to each other yet both shared the common heritage of fine wood boat building. Runabouts, canoes,  row boats, sculls, cold molded flats boats, plus sailboats were all dressed for the day.

Many young boaters have started their boating experience in a wooden row boat, then progressed to a sleek runabout.

No doubt the show was a success and just an hour before closing the Sun came out. At that time the whole show came to  life and catered well to those who had been pent up at home or in the town restaurants. A burst of humanity seeking an educational saunter through maritime history.

MOG's 1st SHOW

On Saturday, May 2nd Beaufort, North Carolina Maritime Museum opened its 41st annual Boat Show at the Harvey W. Smith Watercraft Center (waterside venue) and the NC Maritime Museum across the street.

In the background, a gorgeous antique Chris Craft inboard runabout contrasts another runabout type of the 1950's, a lapstrake planked boat in the foreground

At the Watercraft Center we set up a six foot model of a version of the current 40 foot totally solar electric powered yacht. Along with the model were displayed early small test models that were used to determine the scantlings, planking and hull fitment. An eCycle electric motor of just over 14 pounds was placed in the hands of the many show goers who then gasped at the light weight for a 10 horsepower motor.

Near the center of this picture is the diminutive 10 hp eCycle electric motor.

The same 10 hp motor they held was one of the two power head motors (a total of just 20 hp) that propel the 40 foot MOG to over seven knots.  See   www.mogcanalboat.com:

The weather was a balmy sunny 70's with gentle winds,  a perfect breeze drifting through the Watercraft Center hall, continuing through to impart its momentum into the sheets of sailboats ferrying ticket holders for rides in the waterside channel outside.

The continuous and considerable throng of captains, mates and crews filled the hall and 

spilled over to the streets lined with an abundance of wooden marine craft.

There were literally blocks of fine craft to see on the street, various side lots and of course inside the Maritime Museum itself. A large display of well crafted model boats were lined up along long tables within a meeting room inside the museum. These were to be voted upon by the onlookers with awards at the end of the day.

Within the Watercraft Center, many displays from antiques to ships-in-a-bottle and popcorn to go, kept young and old circulating through the wood timbered building. Even more inspiring were the antique outboard motors from the 1920s into the 1960s that were clamped about the length of the main beams of the long hall.

The maritime craftwork of masters of model making such as William (Bill) Kay were displayed and commented on by the likes of Bill and wife Jean. I was literally left speechless when Jean Kay showed me a picture of a boat which had a name spelled in a manner I could not pronounce as a child.

I had very fond memories of some days work on the boat I had called the Vanilla. Somehow, the big hearted crew allowed this kid to wash the decks of the boat I was to later learn to pronounce as the Valhalla.

Bill had built several of the incredibly detailed models for crew members and those who desired to revisit their great times spent in Wrightsville Beach, NC around the 1950s. The flood of memories was massively intense upon seeing the actual models. Then, a bit later, I swapped stories with one of the Valhalla's crew members who had commissioned a model for the talented hands of Bill Kay to build.  The detail is utterly fabulous but I will let the pictures below do the talking.

William (Bill) Kay in black garb conversing with an admirer of his work.

I cannot say enough about how wonderful the boat show was and great a thrill to attend. I met so many knowledgable boaters and those interested in starting into boating. In the past I had the thirty foot MOG at this same facility for some show and tell and look forward to getting back to it next year with the 40 foot MOG Algemac II.

Both the mid April Wilmington, NC CFCC boat show and the early May Beuafort Boat Show should be on your agenda. The shows are friendly, informative and near to some of the best dining and sightseeing the east coast has to offer.

PEV WEEKEND

Obviously not at the NCPEV street booth, the totally solar electric MOG was in her Wilmington, NC slip.

ELECTRIC AZALEA

No, it is not a new rock group but the folks from Advanced Energy, NCPEV definitely rocked the Wilmington Azalea Festival in the middle of Front and Chestnut Streets. From Raleigh, NC came the team that showed where the future for personal Plug-in Electric Vehicles (PEV) is headed and just how all of the folks in NC are going to get there.

On display were child and adult oriented displays that keyed in on the transportation interests of the festival goers. A Nissan Leaf, Tesla S, Schneider solar controller, nifty handouts and a mini electric car race track, pulled walkers to a standstill. Once people's attention was happily engaged, the basics of personal electric transportation were discussed, while onlookers got some actual hands-on with the cars and mock 'fueling' operation.

The team was not only knowledgable but most affable, being appreciated by the many visitors to the booth.

Katie Drye of NCPEV shows the way to the electric future.

The booth was run continuously by the group from Advanced Energy, from just before 10am until a bit after 6pm, each of the two days. It was obvious that the group had picked a great venue and site. Even better, the weather was absolutely perfect. Frankly, the small amount of rain just prior to the 10am opening, washed a lot of pine pollen away, giving just the right glimmer in the morning sun.

A representative from Capital Ford (Nissan Leaf shown) stands with Ward of NCPEV at right, while prospective electric vehicle users examine the front motor compartment and try the recharge plug.

Matthew of NCPEV (at center in blue shirt) talks with the crowd of interested Azalea Festival attendees about the finer points of the well designed Tesla Model S car.

Our thanks to the folks at Advanced Energy/NCPEV for taking the time to show how electric transportation is having a positive impact on the lives of all North Carolinians and we look forward to seeing you again soon in Wilmington, NC.

NOW APPEARING

APPEARING at ADVANCED ENERGY

Spring has sprung,

The grass has riz,

I wonder where,

The flowers is?

The Wilmington Azalea Festival (April 8-12) has taken over the city and for a few days, tourists from everywhere imaginable will cover the streets, alleys, porches, sidewalks down to the banks of the Cape Fear River... not unlike Kudzu. I like Kudzu, it grows on you after a while.

In the midst of the milling crowd, MOG shall endeavor to help Advanced Energy and society see the benefits of energy conservation as applied to America's daily drivers (four wheel types) along with industry.

The following description was copied from their website and pasted below:

Headquartered in Raleigh, N.C., Advanced Energy is a planning, technical and engineering services firm that provides market-based energy solutions. We work with electric utilities, state, federal and local governments, manufacturers and a wide variety of public and private partners. Advanced Energy offers program design and implementation, consulting, training, testing and research to provide market-based energy-related solutions for our five markets: Buildings, Industrial, Motors and Drives, Renewables and Transportation.

During the Azalea festivities the AE folks have set up a table top display to tout the above described contribution they make. Since it is literally out front of the MOG headquarters, the urge to assist as a volunteer at their booth, is irresistible.

So if you are in town at the festival, do stop and tarry a bit at the Advanced Energy booth, corner of Front and Chestnut Streets, adjacent the old 12 story Murchison Building. No guarantee a member of the MOG staff will be at the booth the moment you arrive but the intent is clearly there. You can always drop word of your projected arrival on the MOG web site contact area at    www.mogcanalboat.com  

IN THE WATER @ CFCC BOATS SHOW

Next weekend we will be in the water at the Cape Fear Community College presentation of their annual CFCC BOAT SHOW Festival (hand crafted wood and classic boats) set for April 18, 2015 from 9:30 am to about 5pm.

The MOG, Algemac II, will be among the biggest at the dock and of course the only TOTALLY solar electric yacht. The motors will be run at your request and if it is really hot, the air conditioners will be on full blast too.

So if you are too busy to attend the Azalea Festival you can see us later at the CFCC BOAT SHOW.

ANOTHER SHOW

In Beaufort, NC on Saturday, May 2nd, 2015, we will have a table top display along with the MOG Concept Craft Model inside of the Beaufort, North Carolina Maritime Museum, WaterCraft Center.

Come see the future of really total solar-electric boats and yachts. See you there!

We will endeavor to keep you well informed of the Great Loop start, right here in beautiful maritime towns and cities of North Carolina.

FAST... REALLY FAST, MOTOR RESPONSE

SUPERIOR RESPONSE

That for which we have striven is accomplished. Have you ever seen an inboard or outboard engine having such a fast direction change response, shown at the end of this video? Also note in the video just how rapidly the electric motor reaches maximum propeller speed. Superior response is the key to ultimate maneuverability.

The sounds you hear are actually very quiet, the camera has automatic amplification, if the video environment being recorded is too quiet. The volume is therefore cranked up, a symptom of the camera and not the motors.

We will be making a series of tests soon to see how the entire control system interacts with the pilot's helm operation. Results of the test will be in the April blog.

SPRING ONCE AGAIN

www.mogcanalboat.com

Spring at dock and dusk. Oh, to get going again.

GOOD NEWS & BAD NEWS

With the successful completion of right and left eye glaucoma operations out of the way last year, it seems that smooth solar sailing is in store for Spring. That is good, but  the operation seemed to precipitate an early arrival of cataracts in both eyes.  We are not getting any younger. Around May the lovely admiral goes in for the first of the cataract implants followed 3 weeks later for the second implanted lens. Although the operations are very common, it is critical to keep the inner eye pressures down for the glaucoma repairs that were completed last year. We intend to keep our travels local and low key….  most easily done on the MOG solar electric powered boat.

MOTORS & WIRES

The other two items successfully operated upon are the electric motors that have been updated to the new electronic commutators. Simply put, both have been rewired more neatly to include water resistant connections. The connectors replaced really fat thumbed hodgepodge experiments in bad wiring. The experiments allowed the motors to be tested quickly and disconnected for field changes. With all that behind us, it is time to make a nice schematic and button everything tight and clean. The new set up seems to go into forward and reverse with very good consistency, a long sought goal.

The pictures below show some ugly quick wiring that has passed away into sealable push connectors and nice shrink tube insulated solder joints. The motors should still be able to be removed in under 5 minutes and replaced in another 5 minutes. That is kind of a rule with me, to make it easy and make it fast to replace anything. Additional rules are to keep it neat, functional, intuitive and inexpensive to find and fix a problem. Once the few objects under the motor covers are found to be correctly placed, a few wire ties will be placed to keep it all neater.

Did I really do this wiring job? Shame on me.

Much neater and better protected wiring.

NAVIGATING BATTERIES

Among other improvements are a backup and quick charge battery set for the remote control (RC) unit used for throttle, forward/reverse and differential steering. The battery for the unit would only last an hour or two and needed a backup battery and a way to quick charge a spare as well as be plugged in at the helm console for longer durations. The nickel metal hydride (NiMh) battery that came with the RC was replaced by a lithium polymer (LiPo) battery. Inadvertently, I left the RC on and the new LiPo battery completely discharged… it is now useless. Although days of working the battery with low voltage and low current can bring it back to some semblance of its old capability, it is undependable and a FIRE hazard.

Lithium Polymer batteries are high power density but highly subject to bursting into flame, ok for model planes but not live aboard boats. This one is not aboard.

LiPo are great for model airplanes (low weight & hi power density) but can literally burst into flame upon charging. That LiPo battery is way off the boat. Instead I have gotten new rechargeable AA batteries, an 8 battery holder and a small wall type AA (4) charger for them. The new AA batteries are NiMh and create a pack that is of longer life than the original battery. I can also use 7 regular AA batteries in the pack if need be, as well as a dummy set of AA’s through the ship’s 12 volt supply (stepped down to 9.6 V) at the helm for the RC. That way all the bases are covered. Redundancy is key.

Previous battery in RC unit with new AA cells in an 8 count holder to the right. The charger is one of two for charging all 8 from a receptacle on board.

To say the least, I would prefer everything on the boat to be 12 volts DC but the rest of the world is not there yet. I must use what I can get and make do at this prototype level. Change will come.

AH YES, TRAVEL 

Travel. Yes the idea is still to travel in the boat to different places throughout North Carolina (this year) in the continuing pursuit of the Great Loop. Our first sojourn will be up the river currents of the Cape Fear River. This first trip is to proceed up the Northeast Cape Fear to Lanes Landing  then return downstream and turn up the Caper Fear (northwest) and towards Fayetteville, NC. I say towards because it is not only upstream but very conditional when concerning weather. There are three locks to navigate for the nearly 100 mile trip but the locks are littered with tree trunks and navigation is hampered by rain storm flows that easily carry sixty to eighty foot  trees into the locks, jamming the workings. The flow rates can go from slow to rampage in just hours, requiring a week of good weather to be safe going up and back down river. The pictures below will give you some idea.

North Carolina is a state of geographic extremes. Tallest mountains in the eastern states, sugar sand beaches, beautiful Dismal Swamp, pounding waves for surfing, huge estuaries, incredible golf and fishing, to mention a few. We intend to see (understatement) as much as we can cram into the solar electric powered boat.

Notice the horizontal tree sticking through the lock guard and nearly two feet in diameter.

CAUTION: Objects In Foreground Tend To Be Bigger Than  You Can Imagine!!!!

Flood water left this tree high & dry. In the background, Cape Fear Lock #1.

Picture courtesy of Fayetteville (NC) Observer

More control, Less "Outta Control"

Control Freak Redux

To introduce this post, we direct you to our last entry in which an infrequent problem arose during rapid control changes from forward to reverse and reverse to forward is discussed. Under certain conditions a brief shutdown was required.  Of course a shutdown is not a good option in real-life, real-time boat navigation. The partial fix was a brief hesitation during the actual change of direction via the MOG's joystick. Also, a thought (to be proven Feb. 8th) of reprogramming the Navitas electric motor controllers might completely cure the anomaly. Please review the previous blog entry from 1/29/2015 (You Gotta Know Where It's Headed) to fully appreciate the advances noted below.

A February 8, 2015 test of the reprogrammed Navitas starboard controller for its electric motor yielded only one thing to do and that was a planned fix anyway. The bottom line being, that none of the Navitas programable variables sent to the starboard electric motor controller’s brain (commutator/sensor circuit inside the motor's shell) made any change in its behavior. 

HOWEVER , when all settings were returned back to their original parameters, it was obvious that the one true improvement was the port side electric motor had been upgraded at eCycle headquarters and responded far better than the older type eCycle, starboard motor, being 'program' tested. It seems the improvement is in the updated commutator assembly inside the motor's end cap shell.

The comparison of the older (starboard) motor to the newer (port) motor in rapid response, now confirmed the new (eCycle modified) motor was superior for rapid forward and reverse changes. Furthermore, after nearly 7 minutes of fast reversals of direction, the new port motor never confused its commands. In fact, the only way that it erred was a very planned and deliberate super fast direction change, very difficult to perform without malice toward the motor. Even at that degree of rapidity, pausing the joystick for barely a second, allowed continued operation, no shutdown required.

All of the activity on the new port motor was much faster than reversing an internal combustion engine through a mechanical marine transmission, as well as better than the older starboard motor's response.

A video shows the test but does not show the joystick movement on the hand held remote control unit. One can hear the noisier reverse versus the more quite forward. If one listens closely, there is a change in the motor speed but the starboard motor (on the right of the video) stays in its previous direction, although the joystick drove the controller in the opposite direction (the direction change was not communicated to the electric motor’s brain (older type sensor), so the rotation of the propeller stayed the same, oops).

The motors are quiet but the camera erroneously intensifies their volume.

The video shown is from a Samsung Note4 cellphone.

So, the intermittent behavior will be fixed by removing the starboard internal electric motor and replaced by newer type eCycle electric motor, as was done to the port motor. Why was this not done in the first place? Because the designer needs to understand what causes the problem, what is a single fix, a combination of fixes and exactly where does the fix occur in the motor and/or system? As a designer/builder one needs to know all they can about the intricacies within a system, bring it to the point of failure and create a reasonable and effective remedy. In this case a combination of fixes were required to iron out the intermittent operation.

After the starboard motor is prepared and reinstalled on the outboard, a series of similar in water tests must be made followed by an actual sea trial...  again.