Japanese Class A 1/16

[He Who Shall Not Be Named]

I guess nobody has the guts to tell you that you are a impatient guy, be patient!!, pictures will follow when i start cutting away on the rudder, first i have a type 17 to balance and do some testing with her.
And make some room for that giant type XXI, thanks for the effort.

Manfred.

A man has lost all size perspective when he describes a 1/96 scale Type-21 as, 'giant'.

What's wrong with you?

Most of us are comfortable in the Newtonian universe where we don't get bogged down on ultra small things. But NO! Not you, Manfred: you're more at home in the micro-worlds of Bohr and Heisenberg. What are you, some kind of watch-maker??

[MFR1964]

I guess nobody has the guts to tell you that you are a impatient guy, be patient!!, pictures will follow when i start cutting away on the rudder, first i have a type 17 to balance and do some testing with her.
And make some room for that giant type XXI, thanks for the effort.

Manfred.

[He Who Shall Not Be Named]

Did a test this weekend, and yes, she steers like a pig, so i have to make the lower rudder larger, still have some issue's with the drive train, sometimes it runs well other times i have to row it by myself, i do have a other solution, but i first want to try to tinker the gearbox.
The SD was dry inside, only one drop from the SAS inlet into the SD, want to place a watercatcher to solve this issue, pretty much the same way as i did with SD from the type XXIII.

Manfred.

What?.... no pictures???!!!! (I lay up your Type-21 hull this weekend -- found I had some slack-time Sunday).

[MFR1964]

Did a test this weekend, and yes, she steers like a pig, so i have to make the lower rudder larger, still have some issue's with the drive train, sometimes it runs well other times i have to row it by myself, i do have a other solution, but i first want to try to tinker the gearbox.
The SD was dry inside, only one drop from the SAS inlet into the SD, want to place a watercatcher to solve this issue, pretty much the same way as i did with SD from the type XXIII.

Manfred.

[MFR1964]

Did some work on the Ko Hyoteki and found out why i had to swim, going forward no problem, reverse jammed the props, re-adjusted the space between the props to get me some space, that seems to be the solution, now everything runs smooth.
As for the steering, the magnets came loose from their fittings, glued all fittings on both the SD and on the boat itself, next weekend i hope to make some test-trails to see if the steering and propulsion is solved, due to the size of the rudders i suspect she will turn as a pig, if so, i want to enlarge the lower rudder and keep the upper scale.


Manfred.

[He Who Shall Not Be Named]

Give me 5 bucks for every time you did, as i want to stop working.

Manfred.

Metric rules!!, poke, poke

(what have I done??)

[MFR1964]

Give me 5 bucks for every time you did, as i want to stop working.

Manfred.

Metric rules!!, poke, poke

[He Who Shall Not Be Named]

Idiot! You'll never see me in the water retrieving a toy submarine!

David
Perfection Every Time

[MFR1964]

Well, this was interesting,
I took the Ko Hyoteki for her maiden trip, before launch checked all functions, during her first trip i had no rudder response, due to the wind she got out of course, ended up about 30 mtr from shore, had only forward response on the throttle, only solution was getting her out by swimming, enjoy

https://youtu.be/wXoiPxWFGXU?si=wQrvpHxejl0kmwsv

It all looked good

https://youtu.be/HA0v9zAnQlw?si=JrXxk6VUDvYt7x_V

Well this was the result of the first drive, jumped in to get her, she rammed the buoyes marking the deep area and damaged her netcutter, rudder was disconnected from the steeringrods, the netcutter i have to repair, next thing on the list is the steeringrod and poor signal reception, have some homework to do before she can launched again.

Manfred.

[MFR1964]

For now the plate is full with the preparations at the house, building will start after a month or so, i can show you guys what i did last summer and some minor work this winter,



Trimming with the new amount of lead inside, she lays straight at last



All the foam strapped with elastic bands, yes, sometimes i listen to you David.




Aimed to get her slight positive, less than a inch above the surface, good enough for me.





Marked down the foam at the hull, the letters where noted down on the foam also to get them at the right place.




Stuffed down the foam inside the hull-parts, had to tinker it a bit because the two-shooter gave some problems with fitting the front part, cutted away some foam and replaced a few pieces under the big pieces, front-part fits like a glove.

For now she is ready for her maiden voyage this spring, when succesfull i will slap some paint on her and will play around with the torps, crawl, walk and run.

Manfred.

[MFR1964]

Thanks Tom,

Detailling your boat makes it stand out in the crowd, and this japanese puppy will be finished.

Manfred.

[trout]

as for details i have one rule, if it's possible i'll make it, why?, because it can be done.

Manfred.

Which is why when I add some extra detailing to one of my subs, I tell myself that it is time to Manfredize it. Sure enjoy your work!

[MFR1964]

Thanks David,

Yeah it took some more time and effort to get to this point, the conical shape of this sub doesn't help either, splitting her by multiple radial cuts helps, it's pretty easy to get inside for the lead, i will get her running in the wild step by step.
As for difficult boat, still have the type 17 in the yard, that boat is a tough SOB, the rear a real nightmare.

Take you time with the 212, the MSD is your bread and butter which has to be done first, a man has to eat, as for details i have one rule, if it's possible i'll make it, why?, because it can be done.

Manfred.

[MFR1964]

Yesterday the second attempt for trimming, added more foam and lead,



Added more foam around the tower, left the same amount at the bow.





No sinking like a brick anymore, pretty good, a bit leaning to the left, but that can be solved by shifting the foam near the tower.



This is the extra amount of lead and foam, the weight of the extra lead is about 200 grams, which i have to place inside, first i want to do that and then play again with the foam.



SD preformed perfectly, no leaks, so back to the cave to glue some lead inside, the total amount will be around 350 gram, i guess two or three times more trimming before the maiden voyage.

Manfred.

[MFR1964]

Finally the heatwave is over, it became that hot inside the cave that my 2K epoxy glue behaved as superglue by setting off like grazy, during the intial trimming i discovered some things which i had to adress first before resuming trimming,


Drilling the ventholes at the keel created this problem for me, the trigger of the lower tubes gets hooked into the venthole during pulling off the frontpart.



Placed some bars inside the ventholes.



A bit crude, but this sub was crude build anyway, giving me two advantages, no big debry can enter and the trigger will slide over the bars without getting stuck into the vent hole.


Did today another job of placing the lead to counteract the weight of the tower, used flat lead and curved it conform the hull, the total weight of the tower is 100 gram, the ballast lead is 150 gram, so it should be enough to counteract the tower.
When trimming is finished i'll spray the lead with some primer to prefent desolving over the years, i drive in partly sweet/salt water which will affect the lead on the long term.

Manfred.