Saturday, 28 December 2013

Brand New Affordable Ocean Going Sailboat Concept Launched

The folks over at Attainable Adventure Cruising, John and Phyllis, have excited us all with the announcement right at the close of 2013, of the launch of their 'Adventure 40' ocean sailboat cruiser concept. This project has been in the pipeline now over a two year period with John having penned fourteen posts related to his vision during that time. You can view them all on their website Attainable Adventure Cruising at http://www.morganscloud.com/.

Adventure 40 lines in preliminary drawing
Following many suggestions from a host of cruisers (all with their own opinions and ideas!) who collectively have sailed millions of sea miles to most parts of the globe including huge experience in the harshest of environments of the high latitudes, a projected design has come off the board of Erik de Jong.

Erik de Jong on board Bagheera self designed and built
 With the increase of vessel size in recent years and cost of fitting out, it has pushed the 'all up' price way out of reach of a lot of otherwise passionate cruising sailors who would love to put to sea on their 'adventure of a lifetime' voyage. 

The whole thrust of the Adventure 40 concept was to mass produce a brilliant, rugged, sea kindly, tough, go anywhere sweet looking craft at an affordable price. That cut off point is USD200,000, completed, fully fitted out and ready to go. Following much research and enthusiastic follow up by Erik, he has come back with confidence that that target can be met. With his experience in the commercial design sector of the marine industry, you can be pretty sure that this target can be achieved. 

The key of course is going be able to have the ability to build this boat in large numbers and to date 97 people have signed up to the project. This an exciting number and I would expect that many more will sign on in the near future now that this announcement has been made.

Like all projects of this nature, they are quite some time in incubation, when suddenly critical mass is reached and they take off. The Adventure 40 project in one such of these and 2014 will be an exciting year for her.

Here is the link to John's latest blog post where you can read all the finer details of progress and comments http://www.morganscloud.com/2013/12/26/adventure-40-its-happening/

We all wish the very best of luck for much progress in 2014.

Images courtesy Attainable Adventure Cruising

You can read much more about the cruising lifestyle in my book 'Sailing Adventures in Paradise' downloadable from my website http://www.sailboat2adventure.com/     



      

Saturday, 30 November 2013

America's Cup Oracle Team USA Secret to Winning

For those of you that followed the 34th America's Cup and watched the final excruciating (for a New Zealander) races, you would have been aware of the huge turnaround that the Oracle team achieved. To come from an 8 - 1 deficit to win the next nine races was massive and will go down in the annals not only of America's Cup history, but sporting history in general.

Many questions have been asked as to how this was achieved when Emirates Team New Zealand appeared to have the series and the Cup all tied up after twelve starts, only needing one more win to claim the 'Auld Mug' for the third time.

Technology won the day

That's when it all went pear shaped for Emirates Team New Zealand and their pride of New Zealand AC72 boat 'Aotearoa'. Team Oracle, or OTUSA somehow gained the edge and got on top of their foiling racing techniques. It all came down to technology in the end, as it so often does nowadays and the following article gives us some clues as to how OTUSA's 'daggerboard foil control system' worked:

Foil control system on Oracle's AC72

November 25, 2013 Jack Griffin
AC72 foil control secrets

Some people have questioned whether Oracle Team USA had a secret (and illegal) foil control system in their AC72 that helped them defend the America's Cup.

OTUSA has released drawings and photos of their system, which used a simple "mechanical feedback" loop to allow precise control of the daggerboard rake. Helmsman Jimmy Spithill had buttons on the wheel to rake the daggerboard fore and aft in precise increments of 0.5° giving him better control over lift for hydrofoiling.

OTUSA designers Dimitri Despierres (mechanical systems) and Eduardo Aldaz Carroll (electronic systems) began work in late June 2013 to help the team gybe better. The goal was to reduce distance lost in a gybe from 150 meters to 30 meters. To do this the engineers needed to deal with the problem that board movement varied depending on hydraulic pressure, making it impossible to control lift. What they needed was a way to move the board a fixed amount independent of the pressure and drag load on the board. Within a month, mechanical engineer Alex Davis developed a test bench with a servo control, hydraulic valve and hydraulic ram to simulate movement of the daggerboard box (see photo below).
Foil control test bench
                                 
Once the test bed system worked, the system was tested on board. Accuracy was fine, but it reacted too slowly. Mechanical engineer Neil Wilkinson and hydraulics specialist Rolf Engelberts improved the system to improve response speed and make everything more reliable and robust.
Buttons to adjust rake on wheel operated by skipper
The hydraulic ram for rake is not visible in the photo below, but you can see the rams for board cant, as well as the daggerboard cage and daggerboard box:

The box moves within the cage which is fixed to the hull
                                         
Rendering of AC72 daggerboard cage below. The cage is fixed in the hull. The daggerboard box moves fore / aft (rake) and side-to-side (cant) within the cage.
Daggerboard cage and daggerboard box
                               
Controversy and protest by Team New Zealand

OTUSA wanted to make sure their system complied with the AC72 Class Rule. They filed a "Public Inquiry" to the Measurement Committee and got approval on 8 August 2013 - only a month before the America's Cup Match was to begin. Team New Zealand then tried to have OTUSA's system ruled illegal but the Measurement Committee stood by their initial decision and the International Jury ruled that New Zealand's protest was made too late, but would not have succeeded even if it had been filed on time. The marked up schematic below was part of Team New Zealand's submission. OTUSA eliminated the spring labeled "Component X" making the TNZ protest moot.

Article and images courtesy www.cupexperience.com and Don Griffin

For all that, the question remains unanswered how it was that OTUSA mastered this system in just the one 24 hr period 'Lay Day' they had before going into race 13? Maybe there is more yet to come?

You can read much more about sailing and the cruising lifestyle in my book 'Sailing Adventures in Paradise' downloadable from my website http://www.sailboat2adventure.com/




Wednesday, 20 November 2013

Sailboat Cruise Yacht Refit/Preparation for Voyage Planning

Many times I have reminisced over the six month period I spent preparing/refitting my boat for my voyage from the UK to New Zealand. Many long hours of decision making, purchasing (including driving to many far off places to pick up urgently needed bits/parts to complete a job), installation and plain hard slog went into achieving the final result - a well found and equipped 43ft fast cruising yacht, a great sailer and robust enough to handle anything Mother nature could throw at us.
Almost there
As I was living aboard during that time with Dale, who was a meticulous installer and fitter of just about any piece of equipment that came into his hands, it was a joy to rise most mornings and attack that days task. From time to time, things as always don't go to plan, and that is when a halt was called for and a retreat beaten to the nearest pub for a couple of quiet ales to discuss the problem. In Shoreham, neighbour to Brighton, this was not a problem as the 'Local' was positioned beside the marina office just a short stroll from our berth! Suffice to say a plan would be hatched over a drink or two, solution/compromise generally found and back to work to complete that particular task. 
 'Tere Moana', fully equipped cruiser
Every voyage planner has different requirements for his vessel and that's as it should be. So you can easily see the vast range of gear that these requirements can encompass. The following is a refit list from ocean voyager owners Mike and Cate and their Morgan 41ft Out Island ketch 'Horizon':   

'........We have certainly been busy on Horizon the past couple years! While we have hired some of the work done, much more than I ever would have in the past, a lot of this was our own handiwork. I am lucky to have prior cruising experience so a lot of the decisions in picking gear was based on that, but then my career as a computer engineer makes me add other, more complex stuff that some see as superfluous which means Cate and our neighbours look askance at some of the things on this list. Sailors tend to have strong opinions and brand loyalty - I just hope all this stuff works together :) Yes I know that little of the expense of all the gear we are adding in this refit will be recovered when/if we have to sell her but we need a little higher level of comfort and safety that we did before.Below are most all of our projects to date for Horizon loosely grouped into categories. As we write more about items they will turn into links that will click through to the description.
s/v Horizon
  • Propulsion and steering
    • Replaced prop shaft - old one was scored and pitted
    • Replaced cutlass bearing
    • Replaced stuffing box hose
    • Replaced intermediate prop shaft bearing
    • Replaced engine exhaust hose
    • Replaced engine exhaust riser
    • Replaced raw water strainer
    • R&R heat exchanger
    • R&R raw water pump
    • Added Perkins M60 engine spares (list)
    • R&R hydraulic steering pump at helm - old one was leaking at shaft
    • Replaced hydraulic steering lines, replaced old copper with 1000 psi tubing
    • Removed EnTech diesel genset, Farymann engine was rusted solid
    • Added Torqeedo 1003 3 HP electric outboard with built-in battery
    • 15 HP Mercury - haven't touched the outboard but replaced tank and fittings
  • Anchoring
    • Added Lighthouse 1501 electric windlass
    • Added 210' 3/8" HT Acco G4 chain
    • Added 60# CQR, primary anchor - got this one used from Sailorman
    • Added 45# CQR, stern hook also well used
  • Safety
    • Added Mustang Survival Offshore life vests - auto-inflating w/built-in harness D-ring (2x)
    • Added Forespar MOB pole
    • Added Forespar horseshoe buoy
    • Added Tri-lens radar reflector
    • Added Fireboy automatic fire extinguisher for engine room
    • Added smoke alarm
    • Added CO monitor
    • Added Aqualarm bilge pump switch/alarm to aft bilge pump
    • Added Aqua Signal LED masthead light
    • Replaced 3 above water thru-hulls that were iffy
  • Communications
    • Added Sea Tech Communicator w/ICOM 802 ham/ssb radio, ICOM AT-140 tuner, and Pactor III modem
    • Added GAM split lead SSB antenna
    • Added KISS SSB ground system
    • Added GlobalStar GSP-1700 satellite phone w/Evolution II unlimited plan
    • Added Standard Horizon GX-2150 VHF radio w/AIS, DSC, and distress
    • Added Bullet M2HP WiFi radio w/SS marine antenna
    • Added Shakespeare 2030-G TV antenna
    • Added VHF antenna on mizzen dedicated to cockpit GX-2150 VHF
    • Added GSM Galaxy Nexus w/Straight talk plan - Okay not a cruising item but I sure love it!
  • Instrumentation
    • Added Lowrance HDS-8 Gen 2 chart plotter/sounder w/Caribbean & US charts
    • Added Lowrance/Navico 4G Radar
    • Added Raymarine ST-60+ wind vane
  • Power Generation
    • Added HiS-S240MG solar panels (2x) - 240 watt each
    • Added Rutlan 913 wind generator
    • Added KISS wind generator mount with rubber vibration isolator
    • Added Xantrex C-60 charge controller
    • Added Blue Sky SB3024DiL MPPT solar panel controller
    • Added Trojan T-125 6V 240AH lead acid batteries (4x)
    • Added Link battery monitor
    • Added Prosine 1800 Watt inverter
  • Plumbing
    • Added Raritan PH-II manual heads (2x)
    • Added Raritan Lectro-scan MSD
    • Added Shurflo 4 GPM fresh water pump (2x)
    • Added Shurflo Extreme Problaster 5 GPM washdown pump
    • Added Village Marine (Racor) NF-200 12V modular watermaker
  • Galley and Interior
    • Added Force 10 3-burner propane stove w/oven
    • Added Isotherm DR-55 drawer freezer frost-free
    • Added Adler Barbour CR-1065 upright refrigerator
    • Added Dickinson propane Sea-B-Que
    • Added Trident 17# fiberglass propane tanks (2x)
    • Added soda-making system with 5# CO2 tank using flavor concentrates
    • Added main salon cabinet sliding doors w/woven teak strips - replaced glass mirror slides
    • Added teak and holly cabin sole with laminate from Teak Decking Systems - replaced all interior carpeted areas
    • Added Hella Turbo fans (5x)
    • Added LED lighting - still adding strip lights inside bins
    • Added Dometic EnviroComfort 16,000 BTU A/C unit forward
    • Added Jensen AM/FM/CD w/RF wireless remote
    • Added main salon HDTV - still need a fish tank screen saver tho
    • Added Acer Revo HTPC
    • Added JSI aft cabin mattress - 3" firm foam, 2" medium, 2" memory foam
    • Enlarged access to bins under settee
  • Other
    • New hull AwlGrip and Petite Trinidad bottom paint - Maximo did a fantastic paintwork job
    • New SS portholes New Found Metals 4x14 (16x) - replaced plastic originals
    • Added deck propane tank enclosure, nicely made to our specifications by B&R Sales
    • Added aft mounted deck box and seat contoured to the cabin top and deck
    • Replaced the too-heavy-for-us AB 12' RBI with the Avon 3.1 Rollaway from my old Horizon
    • Replaced all running rigging
    • Replaced all lifelines with new by SECO South
    • Replaced navigation lights with LED
    • Replaced Bomar main salon hatch
    • Added used Dahon SS folding bikes (2x)
    • Added burgee halyard pulleys on main spreaders
    • Added Hookamax 12v w/2 50' hose dive systems
    • Yet to do: move water heater from under galley sink to engine room
    • Wish list: Simrad hydraulic autopilot
    • Wish list: spreader lights, LED?



Engine spares list

I learned from cruising the last time that the part you do not have is the one that is going to break. I worked with a local shop to find and get the parts for our 1995 era Perkins Prima M60 diesel engine.
  • 1 Fresh water pump
  • 1 Raw water pump
  • 3 Raw water impellers
  • 1 Raw pump rebuild kit
  • 1 Fuel pump
  • 2 Fuel filters
  • 1 Starter
  • 1 Alternator
  • 1 Serpentine (timing) belt
  • 1 Thermostat
  • 1 Radiator cap
  • 1 Seal/gasket kit - probably will need this
  • 1 Injector - got only one of these just in case
  • 1 Glow plug - not needed in warn climates but got one just in case
  • 1 Temperature sender
  • 1 Oil pressure switch
  • 3 Racor fuel filters
  • 5 Oil filters
                                                         END

This looks a very daunting list and indeed it is. These folks obviously had substantially different requirements than what I had several years previously, largely due to the advances in computer technology, electronics, phone/entertainment systems etc. Mike being a computer engineer obviously had a head start in that department. 

These tasks are approached one by one and ticked off the list as you go. Personally, I used a thick black marker pen drawn through the middle as each task was completed. For many weeks, not much progress appears to have been made. But one day you notice that a line is drawn through half or more of the items and suddenly it seems that the end is in sight and this is rather satisfying. From then on, the tempo and enthusiasm rises quite sharply until one day you have arrived at the finish and there are just a few odds and ends to be finalised.

Then you have to seriously start thinking about when you are going to leave port and set sail?!

List courtesy s/v Horizon, images courtesy Mike and self

You can follow Mike and Cate's adventures on their blog http://svhorizon.blogspot.com.au/ 

You can read much more about offshore cruising in my book 'Sailing Adventures in Paradise' by downloading it from my website http://www.sailboat2adventure.com/      

Monday, 28 October 2013

Automatic Identification System (AIS) Hacking and Ramifications for Cruising Sailors

It has been known for sometime now that AIS can be hacked into and 'ghost ships' be added or removed from a known quadrant of ocean. This would be most disconcerting to any cruising sailors not knowing that they could rely on the data showing up on their on board AIS screen.

Here is a summary of how the 'attackers' could operate and broadcast misleading information:
Never say never to hackers as they have proven that pretty much anything can be hacked, especially when protocols are designed without any thought to security. This time, security researchers placed Automated Identification System (AIS) in the crosshairs and showed that this mandatory tracking system for about 400,000 ships is “comprehensively vulnerable to a wide range of attacks that could be easily carried out by pirates, terrorists or other attackers.”

At the Hack in the Box conference in Malaysia, Trend Micro’s Marco Balduzzi, Kyle Wilhoit and independent researcher Alessandro Pasta presented “Hey Captain! Where’s your Ship? Attacking Vessel Tracking Systems for Fun and Profit” [pdf]. They explained “how we have been able to hijack and perform man-in-the-middle attacks on existing vessels, take over AIS communications, tamper with the major online tracking providers and eventually fake our own yacht.” In fact, Balduzzi believes the attacks on shipping vessels are “much more feasible” than remotely attacking and hijacking an aircraft. He said, “The difference between the aircraft attacks and these is that the former are more difficult to perform, and therefore less likely to be performed by attackers in the wild.”
AIS attacker sequence image
AIS protocol “was designed with seemingly zero security considerations,” but is a mandatory tracking system “for all passenger ships and commercial (non-fishing) ships over 300 metric tons.”  By 2014, it is estimated that AIS will be on one million ships.

The team of security researchers divided attacks into two categories; the first exploits vulnerabilities in AIS Internet provider systems and the other exploits flaws in the AIS protocol itself.

Attacking online AIS services. Although AIS Internet providers collect AIS information and distribute it publicly, the Trend Micro blog explained, that attackers can modify “all ship details, such as position, course, cargo, flagged country, speed, name, MMSI (Mobile Maritime Service Identity) status etc.”

Attackers can “create and modify search and rescue marine aircraft such as helicopters, and light aircraft e.g. having a stationary search and rescue coast guard helicopter ‘take off’ and travel on a set course.” Additionally, attackers can create or modify “Aid to Navigations (AToN) entries, such as buoys and lighthouses. This leads to scenarios such as blocking the entrance to a harbor, causing a ship to wreck, etc.”

They also created a ghost ship, not the kind with ghouls intent on killing passengers, but a fake kind of shipping vessel in an attack that is similar to injecting ghost airplanes into radar. A pirate or terrorist attacker could tamper with data from an AIS service provider’s system to change the type of ship or the cargo it is carrying. Balduzzi and Wilhoit chose a real ship, the 60 meter-long Eleanor Gordon, that was physically located in the Mississippi River in southern Missouri, but made it appear as if the ship was on a lake in Dallas. For a scarier example, an attacker could create a fake ship that had all the same details of a real vessel and make it appear like an Iranian ship full of nuclear cargo was sitting off the coast of the US.

The second type of attack targets “flaws in the actual specification of the AIS protocol used by hardware transceivers in all mandatory vessels” and ranged from spoofing to denial of service attacks.

You know about man-in-the-middle attacks, hopefully, but they developed an attack called man-in-the-water spoofing. If a person falls overboard, there are safety beacon devices that send AIS packets, distress signals, to all ships nearby for rescue purposes; but the researchers were able to send a fake a ‘man-in-the-water’ distress beacon to any location that would “trigger alarms on all vessels within approximately 50 km.”

Other fake alerts an attacker could pull off include sending false weather warnings so ships would route around the supposed approaching storm. They also sent a fake a CPA (Closest Point of Approach) alert and triggered a collision warning alert. “In some cases this can even cause software on the vessel to recalculate a course to avoid collision, allowing an attacker to physically nudge a boat in a certain direction.”Hack in the Box presentations Attacking Vessel Tracking Systems for Fun and Profit"

In a denial of service-flavored attack, the researchers impersonated marine authorities “to permanently disable the AIS system on a vessel, both forcing the ship to stop communicating its position, and stop getting AIS notifications from all nearby vessels. This can also be tagged to a geographical area e.g. as soon as ship enters Somalia sea space it vanishes of AIS, but the pirates who carried out the attack can still see it.”

The AIS protocol lacks a geographical validity check, meaning the location message is “accepted without question.” The lack of timestamps on valid and existing AIS information opens the way to replay attacks. There is no authentication built into the AIS protocol, so an attacker “can craft AIS packets that impersonate any other vessel on the planet, and all receiving vessels will treat the message as fact.” Lastly, the researchers said an attacker can easily intercept and modify all AIS messages, since they sent in an unencrypted and unsigned form.

Okay, but could these attacks really happen in the real world? You betcha, since the researchers said that after attackers conquer the “learning curve with the protocols, uses and implementations of AIS,” the “necessary equipment can be purchased for between $100 and $300, depending on the attack.”

However, on the other side of the argument Lloyds List Intelligence team have this to say:

Lloyd's List Intelligence's Ian Trowbridge said that in addition to the vulnerable technology - known as the Automatic Identification System (AIS) - other measures could be used to identify marine activity.
"The spoofing would immediately be identified by [Lloyd's List Intelligence] as a warp vessel," he said, "providing unexplained position reports outside of the vessel's speed/distance capability and thus subject to further investigation and validation."

The AIS system is used to track the whereabouts of ships travelling across the world's oceans.
or ships over a certain size, having AIS fitted is mandatory under international maritime law.
It is designed to transmit data about a ship's position, as well as other relevant information, so that movements can be seen by other boats as well as relevant authorities on shore.

One other use is to alert nearby ships when a man or woman is overboard - an alert that can easily be spoofed, says Trend Micro's Rik Ferguson.
"It boils down to the fact that the protocol was never designed with security in mind," he told the BBC.

"There's no validity checking of what's being put up there."
Using equipment bought for 700 euros (£600), the researchers were able to intercept signals and make vessels appear on the tracking system, even though they did not exist.
In one example, the team was able to make it look as if a ship's route had spelled out the word "pwned" - hacker slang for "owned".
AIS screen showing pwned attack data
The information broadcast by AIS is public - but when the system was first put in use, in the early 1990s, the technology required to receive the information was prohibitively expensive for those not directly involved in the industry. But now, a typical internet connection can be used to see the locations of boats, as well as an indicator of what type of cargo they may be carrying.

There has been speculation that Somali pirates have been making use of the system.
"It has long been thought that the pirates are basically using AIS as a shopping list," Mr Ferguson said, "seeing what's coming into local waters, and what cargo it may have."


However, Lloyd's List Intelligence noted that captains are permitted to disable AIS if they feel their crew could be endangered by it.

Whilst the cruising sailor probably has not too much need for concern, we are all aware that a number of smaller vessels including yachts have been taken by the pirates, so it is vital that the data supplied is accurate if and when recreational vessels venture into these areas.

You can read much more about the cruising sailors lifestyle in my book 'Sailing Adventures in Paradise' downloadable from my website http://www.sailboat2adventure.com/