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M100S

Let us all watch your new project progress.
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RobbieB
Posts: 542
Joined: 07 Mar 2015, 22:22
Location: North West

M100S

Post by RobbieB »

First rig.
m100_first_rig.jpg

alexis scott
Posts: 108
Joined: 11 Mar 2015, 12:06

Re: M100S

Post by alexis scott »

Looking very very nice, I like it!!

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Frankie Valent
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Joined: 19 Mar 2015, 08:22
Location: Kľačany - Slovakia
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Re: M100S

Post by Frankie Valent »

Look really good Robbie. Great work.

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RobbieB
Posts: 542
Joined: 07 Mar 2015, 22:22
Location: North West

Re: M100S

Post by RobbieB »

Thanks chaps; can't see getting much done in the next few weeks..................

march

Re: M100S

Post by march »

That's looking good Robbie, still in love with Morelli sailplanes ! ;) Marc

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RobbieB
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Joined: 07 Mar 2015, 22:22
Location: North West

Re: M100S

Post by RobbieB »

Thanks Marc.

Yes, a little different and a bit of a challenge.

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RobbieB
Posts: 542
Joined: 07 Mar 2015, 22:22
Location: North West

Re: M100S

Post by RobbieB »

incidence_pins.jpg
Incidence plates and pins fitted (sharp intake of breath from the rubber band boys!).

Time for sheeting.

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RobbieB
Posts: 542
Joined: 07 Mar 2015, 22:22
Location: North West

Re: M100S

Post by RobbieB »

Sheeting started - 0.4mm ply ironed on - butt jointed over 20mm wide 0.4mm ply back straps.
sheeting_1.jpg
sheeting_2.jpg
The rib that each strap is glued to is reduced in depth by the thickness of the ply, top and bottom. Easily done with a piece of sandpaper glued to the face of a strip of 12 x 12mm pine long enough to bridge the two adjacent ribs.

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B Sharp
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Joined: 19 Mar 2015, 17:18
Location: Perthshire

Re: M100S

Post by B Sharp »

Nice Robbie! Just a thought based on experience - would it be worth while to double up on the LE ply thickness over the two or three ribs next to the fuselage? That's the place that the wing gets the most handling and .4 ply is quite thin.
Brian. :)

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RobbieB
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Location: North West

Re: M100S

Post by RobbieB »

Brian,

I know exactly what you mean but I've never had a problem with ply sheeting, even thin 0.4mm.; those chunky root ribs seem to take care of the 'launching rash' ok.

It's balsa sheeting cracking that I've suffered from in the past. I refurbished my old K8 some years ago and got the fright of my life when I stripped the covering off the wings - I don't know what was holding them together!

I think anything over 1:3.5 scale I would move up to 0.8mm ply.

I have been very aware of weight in the wings on this thing as those rotating brake assemblies are 510mm long (6 main rib bays) and are going to be heavy.

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