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Pete's Cavallino Rampante Italian Aerobatic Team Sabre

Colourful Italian Ice Cream Sabre

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Peter Garsden02/04/2020 18:22:12
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So to the fairings or more accurately fill in the curve of the fuselage over the wing.

First I made some paper templates for the lower sheeting

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1/64" Ply is the only way to go as it is flexible enough. I covered the bottom of the fuselage with clear film I use for the plans - it is florist wrapping which is ideal. I should actually have used cling film which would have been better because it is flexible.

I then applied a coating of Cyano to where it meets the bottom of the fuselage and pushed both sides into place. The important thing is that it must follow the dihedral of the wing

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I then had to make wedges of 3/16 scrap balsa to support the side sheet of 1/64" ply and push the front and back down to follow the wing. I used my profile tracer I have shown earlier in this blog to map out the curve for each support piece which worked really well. I now have to make another paper template to follow the side pieces, which will also be of 1/64" ply

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Peter Garsden03/04/2020 08:03:02
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1723 forum posts
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This is my exhaust as mentioned on Phil's blog. It is not as effective as the A4 Skyhawk because the exhaust is larger and not as recessed. The test, I suppose is when it gets into the sky!

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This shows the advantage of a fibreglass fuselage - thin walls.

The disadvantage usually quoted is weight, but I think we are going to end up with the same weight as the prototype ie. about 4lbs.

Edited By Peter Garsden on 03/04/2020 08:03:34

Peter Garsden04/04/2020 18:48:57
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1723 forum posts
1297 photos

Well I think I am done, finally. Have put some panel lines on the yellow mainly to break it up as recommended by Phil. Looks OK. Why am I always first to finish? Good and colourful scheme. I just weighed it at 4lb 71/2oz, which is heavier than I wanted. I did have to add 125gram/4oz of lead in the nose, however. I was aiming for 4lbs so whether mine will cope with 12mph we will have to wait and see.

It was sunny outside just so did a plane on the grass pose. Problem is, flying is banned at the moment so I will have to wait for a sunny day.

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Edited By Peter Garsden on 04/04/2020 18:49:53

dan h04/04/2020 20:07:32
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114 forum posts
36 photos

hi pete

looks fantastic great job

Phil Cooke04/04/2020 21:23:35
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2551 forum posts
1796 photos

Great job Pete - it looks the business! A great coloursheme - I really like the gloss red and blue against that antique cream!

Callsign Tarnish05/04/2020 22:04:52
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What's the final weight Peter and have you calculated a wing loading?

Martin Gay06/04/2020 11:41:36
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387 forum posts
255 photos

Hi Pete,

As a ballpark figure, there is something like three square feet of wing area on the model.

That will give you a wing loading of about 23.6 ounces per square foot. Pretty good for PSS.

A weight of 3.5lbs will give a wing loading figure of just over 18 ounces per square foot.

Martin.

Peter Garsden06/04/2020 13:24:56
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1723 forum posts
1297 photos

Thanks Martin, just what I needed. At that wing loading it won't be a light wind version!

Martin Gay06/04/2020 14:25:53
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387 forum posts
255 photos

Anything above 20mph on the Orme should be fine. Below that and your Canberra will be flying!

Harry Twist06/04/2020 23:13:23
356 forum posts
270 photos

Hi Peter, looks fabulous.. looks like its going fast when its standing still! Well done on the completion, stunning colour scheme.

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