Here is the usual EeZeBilt sub-deck with the two front formers on. Note that the front has been steamed and bent up so that it will take a curve easily.
...and then glued into F1 (and the sub-deck) to create the curved chine.
The Upper Keel is added, as are Formers 2, 3 and 4. All glued and pinned, the bow section is now quite strong. Check there is no twisting, and keep the rest of the sub-deck firmly flat on the building board.
It's worth checking that there is no twist in the framework before skinning. Here the right rear is a little down...
...for the reinforcing strips to be glued on top. You can also see the transom support here holding the transom at the right angle.
Check that everything is square, and that the hole in the deck unit fits snugly onto the two formers. The transom should fit in the end of the deck - bevel the upper and lower edges for a good fit.
First attach the deck unit to the reinforcing strips alone. The edges if the deck will stand a bit high away from the formers at the edge, and will need pinning down all around once the centre is firmly glued. Keep the whole unit flat on the building board while you do this.
Here are the Bow Formers being slid into F5...
Now is a good time to mount the rudder tube if it is to be glued in. You can work on it whem the hull is complete, but it's much easier before the sides go on.
Now is a good time to drill holes to attach the motor. Do not fit it permantly yet, or connect the prop-shaft, because you want to ensure that the sub-deck does not twist until there is more structure at the rear. The best way to do this is to keep the subdeck flat on the building board until the deck is fully fitted. Ideally, keep it held flat until the sides are on, at least at the rear...
The OSA-1 is a Russian development of the Torpedo Boat, but using missiles to give a much greater striking range. It was one of the Russian Navy's most feared weapons when it came out in the 1960s, and is still in use in some of the many client nations it was sold to.
This model is of an OSA-1, but the hull of the OSA-2 is identical, and it could easily be converted into one of the numerous variants of this general type. The prototype here is the INS NIPAT, a member of the Indian Navy 25th 'Killer' Squadron which took part in Operation Trident in 1971.
This build log is rather abbreviated, since I lost several of the pictures in a disk failure. However, it should give you an idea of the construction, and that's better than nothing...
This is a crude photoshop, showing the rear sides going on while the hull unit is kept firmly flat on the building board. I did not do this, and ended up with a bit of a twist which was a fair bit of trouble to remove!!
When you have a firm, true top hull, you can add the keel and lower formers (all the ones with 'b' numbers).
