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[pompebled]

Last saturday I did a tour around our city, about an hour and a half of walking pace with short sprints.
 
 This time I had remembered to take the temperature mesuring thingy with me, so I could monitor if the cooling worked.
 
 There was no sunshine during the run, so the warming up wouldn't be from the radiation.
 Both motor ans ESC didn't exceed 45°C, so on an overcast day, I wont have overheating issues.
 The pressureless cooling loop performed as I expected, once filled with a short burst of throttle, the flow kept going, even when I was creeping along.
 
 I did experience an annoying series of five beeps from the ESC, but according to the manual that was the receiver complaining about not receiving a sufficiently strong signal, nifty...
 Time to change the batteries in the transmitter.
 
 Now for a complete deck, as this hull runs very wet, covering the first half reduced the splashing from running through waves, but the exposed rear half needed emptying several times during the journey.
 Good thing there was nothing to get wet, as everything was covered by the half deck.
 
 Regards, Jan.

[pompebled]

Running pics!

As my son now lives on a canal, a photoshoot was in order.













 I'm not (yet) used to running such a large model and made the mistake to slowly run over the wake of a passing boat, catastrofy was eminent:


The hull dropped down the wave and pierced the next one, causing a massive swamping over the partial deck:


 The boat nearly sank, but she finally drifted within retreiving distance.
 All goodies have been dried thouroughly and everything works again, fortunately the ESC is waterproofed.
 
 Next: a closed deck!
The first formers are glued in place.

Regards, Jan.

[pompebled]

As it was quite hot here last week, other than another testrun with a closed deck, I didn't do much more work on the boat, too hot.

During the testruns the bow wave crawled up towards the deck in fast turns, so sprayrails were in order.
Fortunately the plan shows where to put them, so I boiled some strips to make them soft enough to follow the tight curve of the bow and let them dry overnight.

Next, the position was marked, the skin was sanded, degreased and the port strip was clamped in place and tacked on with cyano:



I secured the strip with wooden dowels (Ø2 mm cocktail pins), tapped with white glue into holes drilled through the sprayrail and the skin into the bulkhead underneath:



Once the glue has set, the pins will be sanded flush and the rails given a coat of epoxy (and maybe some glasscloth).

First the starboard rail tomorrow.

Regards, Jan.

[Big Ada]

Looking Good Jan.
What sort of Kites do you fly, looks like single liners with a line reel like yours.
Len, also a Kite Flyer.

[pompebled]

Hi Len,

Yes single liners, I like the big reels, which allow me to reel in long lines fast enough when the wind decides to turn, or stop blowing altogether, just when I've managed to reel out 400 m.

The speed with which I can reel in makes the difference between losing a kite at see, or in a forest, or keeping it airborn long enough to get it back.

But who am I telling this...?

Regards, Jan.

[raflaunches]

Hi Jan


You are doing a fantastic job, I was tempted to build a MAS boat several years back but my Dad's CMB won the deciding vote between him and me! I've had to buy the Italeri kit instead. Looks like you'll have fun with the torpedo mechanisms when you start on them if the Italeri kit is anything to go by!
She looks good on the water, at least she didn't sink on test trials.
Best regards


Nick B

[Arrow5]

400 metres ?   Can you see the kite at that altitude ?   Nice sailing area you have.

[pompebled]

Hi Arrow,

Only if the kite is large enough...

On other occasions I get weird looks from people who see me stare at a line disappearing in the sky without something visible at the end, if the kite is smaller.

It's a real kick when the kite travels up through different layers in the air where the air moves in different directions, creating an sharp bend in the kiteline...

@Nick B: I've studied the pictures of the Italieri build and I must say I have a better understanding of the way the deck details should look, my plan is somewhat simple and doesn't show much detail.
I know there are much more detailed plans available in Italy, both of the real boat and RC versions, but as mine will be a running model, I'm not going overboard on details, they tend not to survive frequent outings on the water.

Regards, Jan.

[Arrow5]

Thanks Jan,  lots of height restrictions in the UK for model aircraft 400ft. half that for kites.  For UK ( OK Scots) the Forth Rail Bridge is 400ft or thereabouts.

[pompebled]

Hi Arrow5,

Officially we have height restrictions too (100m), but I haven't been caught (yet).
It's mainly a matter of only letting out so much line in places where you won't get in trouble so quick.

Near an airport I'm (kite)flying very low I can tell you...

Regards, Jan.

[Big Ada]

Hi Jan,
I have not worked out where you are based, could you put your location in your Profile = Country / County.
I am a member of The Kent Kite Flyers, Google to have a look at our Web Site.
 
Regards,
 
Len ( I am rokbotton on their web site.).

[pompebled]

Small update,
Both sprayrails are monted and covered in two layers of epoxy:



The testrun showed they work like a charm, deflecting the spray to the side, instead of the bowwave crawling up to the deck.

This boat is such fun to run, both slow and fast!
It shows similar charactaristics as the 1:1 versions; it runs prefectly om smooth and light ripples, but it doesn't like waves at all, she dives in and gets stopped dead in her tracks when I try to run over too large wave(lets).

You have to keep your eyes on it all the time, as the flat bottom design is also very susceptible to wind.

Regards, Jan.

[pompebled]

I took the unfinished hull with me on our vacation on the river Weser, my nephew made the movie, turn up the volume to hear the boat noises, as he has muted most of the sound:

http://www.youtube.com/watch?v=-igDcvLySEM&feature=youtu.be

Regards, Jan.

[pompebled]

Last week the MAS stopped in the middle of the canal; the motor still turned, but the propulsion was gone.

My first thought was that I lost the prop, but it turned out to be a broken coupler:





I must have hit something heavy enough to break the ears clean off one half of the coupler.

Fortunately I have a few spare parts, so the damage was quickly repaired, but I added a piece of silicon tubing to prevent the loss of drive, should the plastic parts break again in future.



Not even Raboesch parts hold up indefinitely under the 'torment' of 10.000 rpm on a 60 mm prop...

Regards, Jan.

[Martin (Admin)]

Missing photo #16 fixed.   

[pompebled]

Thanks Martin!

Regards, Jan.

[Norseman]

How is the build going Jan?

Dave

[pompebled]

Hi Dave,

 Work on the MAS is very slow, getting the double curvature of the deck and having a large enough access hatch needs some contemplation, next to that, the celebration of Sinterklaas is approaching rapidly and I'm doing some repair work for a Dutch fellow boater on his Apparition cat, so my spare time is well filled at the moment.

The formers for the front part of the deck are in place, so I'll experiment with 6 mm Depron sheet, to see if that will follow the curvature without buckling.
The idea is to fit a false deck out of Depron sheet which I'll cover with glasscloth and epoxy.
Once that has completely cured, I remove the Depron and glue the epoxy deck onto the formers.
The plan is to have the support for the hatch built in, so when the deck is glued on, it's a matter of cutting along that outline to get a well fitting hatch.

Once I've got it all worked out in my mind, I'll get cracking on with the build.

 Regards, Jan.

[Norseman]

needs some contemplation

A quiet shed and an open bottle, repeat as often as necessary 

Dave

[pompebled]

Another small update.
 
 Cold water and a plastic prop works fine, as long as you don't encounter a half submerged branch and accidentally run over it...
 
 A while ago I lost one blade of the red Graupner X-60 prop, by just doing that.
 Right, the boat doesn't run too bad with just one blade, albeit a bit noisier due to the vibrations and less speed, but revving slow, I didn't notice too much difference.
 
 A boating buddy pointed me towards a German manufacturer of aluminum CNC props, so I ordered a few:
 http://www.rc-prop.de/index.php?page...chk=1&Itemid=1
 
 The props look good and can be used without balancing them, here the 'single blade'  red prop next to the CNC props:



The 5875 prop on the shaft, with the 5775 next to it:




 The weather has been quite nasty the last weeks, so I only got around to testing them last weekend; the boat runs as it did before, maybe even a bit quicker, as the CNC prop doesn't flex.
 I haven't measured it (yet), but I suspect the Ampdraw is a bit higher too.

Regards Jan.
 

[derekwarner]

mmmmm those CNC props look very sharp  ...& another beauty of CNC is that the costing's are not excessive
 
Jan....the coding's...."5875 prop on the shaft, with the 5775 next to it"...... is the diameter x pitch? ..........it's just that 57 & 58 sound funny numbers for diameters

Derek

[pompebled]

Hi Derek,

The first two is indeed the diameter, the last two the pitch.
Henrik Woldt makes a lot of these 'odd' sizes, check out the site.

Regards, Jan.

[pompebled]

No building progress, just a small video with my newly aquired Mobius camera:
 http://youtu.be/JTYDvmR4p8U

This close to the water, the speed looks frightning to me (and I'm driving it...).

Regards, Jan.

[gra2]

Hi Jan looks good.

Graham

[gwa84the2nd]

looking good there bud she performed very well do you have a link to the camera set up your using very interesting