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>> Home > Boat Building Blogs > Pilot Boat
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mdlbt.com/45686
Pilot Boat Print Booklet
Author: MouldBuilder   Posts: 2   Photos: 19   Subscribers: 2   Views: 467   Responses: 25   |   Most recent posts shown first   (Show oldest first)

mdlbt.com/47136
Must get the skins on before I pull all of my hair out!! - Posted: 15th Oct 2018
This build is proving to be much more difficult than I had expected. 😤 I think I started this project thinking that all of the parts were ready to fit and glue. As I went on, it became clear that this is not the case. Due to this, and as detailed in the earlier post, I have had to break down the glue joints of the hull frame, and reposition after deepening some of the assembly slots. I have re-assembled the bulkheads, stringers etc. and then started to fit the side skins. This has proven to be the most difficult task so far. You need six arms. After several failures, removal of all of the fixing tape and then starting again, they finally started to look reasonable. I watched a time lapse video on you tube and he seems to do it fairly easily. Oh well. 🤔
Now that I was happy with the fit of the sides, it was time to start on the bottom skins. I started by trying to form chamfers along the keel centre joints so that they look reasonable. Then I once again applied tape to hold them in position whilst glueing with my other three hands, I wish. This only took two attempts. I must be getting better. I still have most of my hair also.
Next, I tried to mount the motors onto the angled bulkhead. The front location was very loose so I made a couple of thin silver steel rings to improve the fit. They work very well. 😊
Next job was to fit and align the prop shafts. I decided to make these solid joints and avoid the use of universal joints. The first motor went straight on with perfect shaft alignment. The second was not so good. After two hours of fiddling with a packer, I finally achieved perfect alignment.
Next job was to give good joint strength and make the hull water tight. Rightly or wrongly I use a lot of glue to give that perfect seal. I used epoxy for all of the skin inner joints and Stabilit for the outer seams and joints. I used the Stabilit around the shafts as well which looks a little messy at the moment, but I will tidy all of this up next. I will paint the inner Stabilit with white paint to hide a little.
This weekend I will do a water test to ensure it is water tight.😱
I think after that I will fit all of the electrics, servo and speed controller. Then I will spray the hull and the main deck prior to fixing together. I would be interested to know what others think about when to paint, before or after assembly, especialy regarding the hull.
Enough for now.🤐
I will try to speed up the build a bit now as I am expecting the new 46" Crash Tender to arrive soon. Wood!!! Love it.😊

Attached Photos - Click To View Large

Response by RNinMunich on the 2nd Nov 2018
OK, props outward turning.
I assume you've already fitted the rudders, correct me if I'm wrong.
Cos if not you have some wiggle room how you fit the rudders (in or outboard of the shafts) which affects the rudder efficiency and can reduce the braking / dig-in effect a little.
Let me know and I'll check my notes which way the offset should be.
Can't hold everything in me bonce! As Einstein said-
"The brain is for thinking, not for storing facts, but to know where to find the facts"!
All the best, Doug 😎
Response by MouldBuilder on the 2nd Nov 2018
The rudder tubes are set in place as are the prop shafts.😱
I have had a quick look and it appears that the shafts are very slightly closer to the keel than the rudders.🤓
Response by RNinMunich on the 2nd Nov 2018
OK. I see 'em inline with the shafts. OK, forget it 😭

mdlbt.com/45687
Pilot Boat - Posted: 2nd Sep 2018
Winter approaches again so what better than a new project,.......to go along with the other two yet to be completed. I have excuses. Honest!!
This new one is a bit different again. No wood at all this time. It is the Aero-naut Pilot Boat. I thought it didn`t look too much of a task but I think I will have to re-assess as it is tricky in parts.
I have assembled the hull frame, which although the parts are rather loose fitting until glued went ok. I have, however, stumbled slightly on the next stage, to fit the hull skins.
The instructions suggest to cellotape them in place prior to glueing. Not as easy as it sounds as considerable bending of the parts is required to get them to fit, too much for the tape. Does anybody know of an easier approach please. The ABS is extremely difficult to hold in position when trying to tape it, which incidently, does not hold anyway. Should I warm up the skins or will this distort them and give a rippled finish. Any help here would be appreciated.🤓
I will continue with the refurbishment of the Patrol Torpedo Boat for now as I have been trying to manipulate the sides of the Pilot boat into place for hours, no, days!!.😡😤

Attached Photos - Click To View Large

Response by MouldBuilder on the 4th Sep 2018
Hi Mike.
The bulkheads are all slotted as is the keel. The front of the keel is also located in a slot in the base board and so therefore all of the bulkheads are automatically held square in both directions. It has been glued and on a trial run, the skins fit well. I have been as careful as possible. The manufacturer has thought about assembly. The jig is not card. It is a strong sheet of 3mm Depron. If you see the picture above, you can see the slots for the bulkheads and the centre front slot for the keel. It does seem to keep everything in place very well.😊
I am going to try to fit the skins tomorrow. I wll report back if I don`t do myself an injury trying.🤓
Response by mturpin013 on the 5th Sep 2018
Thanks for that explanation looking forward to seeing the skins ,I hope it goes well
Response by MouldBuilder on the 9th Sep 2018
Wednesday did not go too well. I used a new method to hold the skins in shape but could not line them up as I would like with the stringers. The keel also looked a little up and down which was going to hinder the fitting of the bottom skins. I made the decision to carefully break some of the joints and re-bed the keel in place.
I have broken it up and found a bit of a mystery. I have adjusted the keel which now sits in a much better place. The problem I have found, and possibly the cause of most of my alignment woes, is that the Transom seems to be sitting about 1.5mm low which in turn sets the heel too high (see picture). The stringers seem to agree with this as when I put a straight edge along them the last joint seems to drop. I will reset the Transom in line with the keel which in turn will lift its feet above the jig. I cannot explain why this is but I think my plan will solve the problem. I just hope that I am not adding to the problems later on. I cannot see why this should be. I thought it might be my baseboard not being flat, so I rotated the model 180 degrees on the board with the same result. I will try again to set the model in alignment and hope that the skins fit better. All of the evidence points to this being the source of my problems. We will see.😤