A Visual History
The Building of Aslan
Making the Lazarette Hatch Opening
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The plans aren't that clear on how to mark the lazarette hatch opening.   Its only 9" wide, and has what the plans call a 7 1/2" radius (concave shaped) top, but the drawing that gives you that information doesn't have the height of the top corners of the hatch opening.  It does show that the top corners come up to the seat level, which on another drawing is 11" up from the bottom.  Marking two lines 4 1/2" on either side of the centerline established the sides of the hatch opening, and then a mark on each line 11" from the bottom marked the top corners of the radius.  To make the arc of the radius, I took a piece of scrap and drove a finish nail through it 7 1/2" from one end.  I located this nail on the centerline high enough so the end of the scrap intersected one of the top corners, as shown in the picture.  Then, guiding a pencil along the edge of the scrap, I made an arc by rotating the scrap towards the other side mark.  Made a nice arc. 

I was able to cut this out easily enough by drilling some holes along each line to allow a jig saw access.  I cut the opening while leaning over the transom, which wasn't difficult at all (it might be harder with the seats in, though.)


 
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