HMS Hood main mast, Part I
Posted: Fri Feb 08, 2008 10:54 am
HMS Hood carried a typical tripod main mast, with the topmast fastened with stays from the star fish. Several modifications were performed on the mast, inlcuding the addition of a radar set of which no drawing exist how this was actually done. The main mast is contructed from styrene and the top mast is a brass mast from modellmarine, made by our board member Burkhard. I choose a mast with the correct lower diameter and taper, cut to length later.
Here you can see the tripod under contruction. I choose to do this 'in situ', in order to have the tripod legs fit in their emplacements in the deck part and simultanuously have the mast completely up right. A small mould (tube) was used to keep the mast up. The small platform was cut at least 15 times before I had one with the right shape, with the small strip around the main mast of a constrant thickness. That strip broke often during drilling.
There is a diesel exhaust pipe connected to the port side tripod leg. This exhaust is fitted to the tripod at three points. I first drilled in the exhaust pipe at the correct locations, taken from the best photograph I have to the mast takenf rom the bridge, and then drilled in the tripod through the exhaust pipe. Next, I made several rings simulating the flanges keep the individual exhaust pipes together. Of course, you can use sveral rods and disks, but a single rod and rings is structurally more sound, especially with a few drilled-in holes. After the pipe was glued to the tripod mast, the rings were glued into place. A protective cover is fitted to the base of the exhaust pipe. My guess is that this cover is fitted in order to avoid damage when handling the admirals barge that is stowed very close to this location.
Each tripod leg is fitted with a ladder. I choose to use ladders by Aber, which I considered the best ladders available. They need to be folded, which is very tricky for longs lengths of ladder, but they can be directly glued to a bulkhead without additional supports and drilling in that usually spoils the fine feel of the etched part. Note the odd curve in the ladder as it approached the lower platfrom below the main starfish. I also added a cover to the diesel exhaust pipe, estimated dimensions from the photograph at right.
Here you can see the tripod under contruction. I choose to do this 'in situ', in order to have the tripod legs fit in their emplacements in the deck part and simultanuously have the mast completely up right. A small mould (tube) was used to keep the mast up. The small platform was cut at least 15 times before I had one with the right shape, with the small strip around the main mast of a constrant thickness. That strip broke often during drilling.
There is a diesel exhaust pipe connected to the port side tripod leg. This exhaust is fitted to the tripod at three points. I first drilled in the exhaust pipe at the correct locations, taken from the best photograph I have to the mast takenf rom the bridge, and then drilled in the tripod through the exhaust pipe. Next, I made several rings simulating the flanges keep the individual exhaust pipes together. Of course, you can use sveral rods and disks, but a single rod and rings is structurally more sound, especially with a few drilled-in holes. After the pipe was glued to the tripod mast, the rings were glued into place. A protective cover is fitted to the base of the exhaust pipe. My guess is that this cover is fitted in order to avoid damage when handling the admirals barge that is stowed very close to this location.
Each tripod leg is fitted with a ladder. I choose to use ladders by Aber, which I considered the best ladders available. They need to be folded, which is very tricky for longs lengths of ladder, but they can be directly glued to a bulkhead without additional supports and drilling in that usually spoils the fine feel of the etched part. Note the odd curve in the ladder as it approached the lower platfrom below the main starfish. I also added a cover to the diesel exhaust pipe, estimated dimensions from the photograph at right.



