Jump to content

Andy Edmead Build Blog Sabre


Recommended Posts

Probably just as bad Mark, if not then worse (yes I did see your Youtube cockpit video!)

The problem is, all of the little models are drawn up as artists impressions, or how a CAD monkey might perceive the full size. Can't beat getting up to the real thing, or good photos / videos of someone else doing so. There must be a preserved Sabre in the UK for a group visit?

Link to comment
Share on other sites

Andy,

Take it slow when building and ask lots of questions. There are plenty of Sabres being built for this event, with lots of them hopefully being documented in the various build blogs.

I would hazard a guess that you will probably get more than one answer on how to complete something if you ask a question! laugh

Martin.

Edited By Martin Gay on 14/09/2019 22:23:40

Link to comment
Share on other sites

  • 2 months later...

Here we go, I've made a start on my Sabre build. I haven't done a lot of building so any critique is welcome. I started off looking through some of the previous mass builds. Picked up a lot of tips.

I started off by making a simple bench with a 25mm mdf top and a piece of plaster board. I committed a crime and cut the plan up to make it easier to handle.

So started with the wing jig, used some triangle blocks to square it up and pinned it to the plan, only problem its its been on off the plan about three times now. I tried to mark all the ribs etc on the wing skins whist on the wing jig. I found this very difficult and for me it was easier to take it off the jig and mark all the lines on the plan. I also trimmed the skin whist flat which also helped. The skin sat in the jig over night to take the shape, don't know if this helped much.

Next job was to glue down the main spar, weighted it down and left overnight. The next day I put the jig back on the building board and pinned the wing skin and spar onto the jig.

I now started the dry fitting of the ribs, I noticed a difference between the size of the main spar on the wood list to the one on the plan, It actually turned out to be a perfect fit at 1/8 x 1/4 as on the plan, it looked too small at first glance but it wasn't.

Next was to glue all ribs in place and add the top spar, I got as far as fitting the false trailing edge.

Now the false leading edge gets bigger towards the root so I assume I just use an over sized piece of 1/8 balsa and shape it when doing the main leading edge??? Just read this back that wont work, need to trim it before the top sheet.

I'm going to add my pictures now, below thanks for reading my blog.

I have one suggestion, could somebody create a thread with a list of the gotchas and errors as they are found to make it easier for noobs like me.

Andy

Link to comment
Share on other sites

Thanks chaps, I don’t think it’s that tidy. I’ve used a bit too

much glue. However it’s looking ok. I’ve started on the

the shear webs and I’ve glued the false leading edge.

Any tips on how to trim the false leading edge? To be honest

I'm not going to risk enlarging the holes for the servo plugs or any straws/tubes.

Im just going to run the wires through the holes.

Ive decided to virtually finish both wings before starting

the fuz. A few more pics below to show progress to follow.

 

 

 

Edited By Andrew Edmead on 24/11/2019 23:07:26

Link to comment
Share on other sites

Posted by Andrew Edmead on 24/11/2019 23:07:06:

Any tips on how to trim the false leading edge?

Hi Andy,

Regarding your LE trimming/sanding, I just use the longest possible sanding tool I have. Mine is from Great Planes and is about 30cm long.

If you don't have one, just use any straight ali profile and glue some sand paper to it with double face tape (120 > 150 grid will do).

Cover your ribs with a stroke of masking tape just next to the LE. This will protect your ribs but also serve as a sanding guide. In fact, when the sandpaper starts to touch the surface of the tape, your job is done... yes

I saw your suggestion of a thread for 'gotchas' and Q & A for newbies but nobody seems to have reacted to it. Shame...

Hope this helps a bit

Cheers

Chris

Link to comment
Share on other sites

Good tips there Chris, here's another that may help for trimming false leading edges (and false trailing edges).

Take a steel ruler and sit it immediately behind the false le and sat on top of the ribs, with a scalpel cut through the part of the false le that sits above the ruler, then cut along the ruler with the blade flush and flat on the ruler surface. This leaves you with only the thickness of the ruler to plane down flush. Cut from in front of the wing. Staged photo shows what I mean ( wing in photo already trimmed).

Hope it is of some help!

 

img_20191124_233020641_hdr.jpg

Edited By Harry Twist on 27/11/2019 10:23:48

Link to comment
Share on other sites

Hi Andy,

IMHO, that 'dark' piece of hardwood is supposed to be the 'joiner' between the 2 wing halves when you bring them together. And I think it's supposed to be ply. indecision

But that's just me. So, I suggest you to post your pic in the newly created 'Sabre Build gotchas' by Martin G and see what he has to comment about it... yes

Cheers

Chris

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...