Week 65  This week we get the remaining elevator spars

The bits we received

And what we did with them

I decided that it would be easier to build the elevator against the tail plane, rather than on it's own.  First off, put a strip of masking tape along the rear of the tail plane, just to make sure you don't glue the parts together.  Now mark the centre of the tail plane, and the centre of the spar for the elevator.  Tape the elevator spar to the tail plane, lining up the two centre marks.

Next, take the two longer ribs, and try them against the tail plane.  Make sure you get them the right way round as one end is slightly longer than the other.   You should also file the slots at the front to an angle so that the brass outer edge will sit against it snugly.

When you're happy with the fit, glue the ribs in place, and hold them with pegs as shown.  Put a spacer between them and the tail plane so that there will be an even gap of about 1mm.  I used a scrap of veneer that was about 0.5mm thick.  Two thicknesses were ideal. 

Now I took a spare length of 2mm brass rod and taped it to the back of the ribs as shown below.  This makes it very easy to get all the ribs in line.

Now glue the four remaining larger ribs in place.  Leave the little one as it's easier to put it in place last of all.  Notice that I'm going through lots of masking tape - it's a god send for work like this.

 

The photo above shows the rib held in place with the veneer spacer.  Make sure it's all square and that the two ribs are in line with each other and leave it to set for 24 hours.

Now remove the spare length of brass rod and fit the shaped brass edges in place.  I found that mine needed a little re-shaping and trimming at the front.  Glue them in place, along with the support brackets at the ends.

Here's a close up of the bracket.

Here is the completed elevator

Items not yet competed

Week 47 : Tail Skid support

Week 51 : Fix the cockpit bulkhead

Week 53 : Fix the seat support brackets

Week 56 : Wing tip skids

Week 57 : Tail skid

Hot tip of the week

You don't need masses of glue to make a strong joint.  A big fillet does not make a joint any stronger.

How many hours does it take to build the model ??

This week :

7 hrs

Running total :

162 hrs

Take me back to week 64

Take me to week 66