Manie se Raven

Aircraft Projects Underway or Completed

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Boet
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Manie se Raven

Postby Boet » Wed Aug 26, 2015 10:15 pm

Oom Boet, maak vir my n cowling vir die Raven....maar hy moet soos n turbine s'n lyk. Of so iets, en wheelspats en n cuff tussen die vlerk en die romp en en en. So I got busy. Clean slate. Engine already fitted, all wired and piped up and ready to growl. Will I take the plastic bag make it on the engine route, NOPE. Once had a leak through of Poly urethane on an engine. Oh bugger. :shock: Took me bloody ages to clean it out. The damn stuff went everywhere. No, different aproach this time.... So this is where it all started. If you are interested, I will continiue. vhpy
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I did not want to run the risk of having an engine full of foam again...For obvious reasons.
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The adea formed. Make a wooden mockup of the position of the cowl front
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The wooden frame taking shape. It has to be very sturdy so when I pour the foam in it will not distort!!
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The frame glued to the engine fire wall mock up. Took a moerse amout of effort and measuring to get this as accurate as possible.
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Last edited by Boet on Wed Aug 26, 2015 10:29 pm, edited 1 time in total.
justin.schoeman
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Re: Manie se Raven

Postby justin.schoeman » Wed Aug 26, 2015 10:28 pm

Hi Boet,

Have you checked the CG of that installation? Mount looks a bit short to me. Would be a pity to make a nice cowl, and then discover the CG is off. Trust me, I know :( .
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Boet
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Re: Manie se Raven

Postby Boet » Wed Aug 26, 2015 10:31 pm

Justin, point taken. The prop hub extension is about 8 inches. Done for the look. The aeroplane has already been assembled and weighed. The CG is A OK.
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Boet
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Re: Manie se Raven

Postby Boet » Wed Aug 26, 2015 10:33 pm

Next step will be to pour some poly u foam around the frame. A messy job.
justin.schoeman
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Re: Manie se Raven

Postby justin.schoeman » Wed Aug 26, 2015 10:40 pm

Boet wrote:Justin, point taken. The prop hub extension is about 8 inches. Done for the look. The aeroplane has already been assembled and weighed. The CG is A OK.

Interesting. Looks shorter all round than mine with the Jab3300 on. But that shape looks awesome - gonna be a real looker.
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Boet
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Re: Manie se Raven

Postby Boet » Wed Aug 26, 2015 10:54 pm

He he he.....
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Induna
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Re: Manie se Raven

Postby Induna » Thu Aug 27, 2015 7:51 am

Boet, dit lyk baie mooi!! ek het al fotos van die verf gesien, so jy moet post dat mense jou mooi werk sien..!!

Daai enjin mount is reg. Dis dieselfdte Zenith factory mount wat ek op my Raven het en het geen probleem met die CG..

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Re: Manie se Raven

Postby Induna » Thu Aug 27, 2015 7:59 am

Boet, gaan jy vir my ook so mooi cowling maak vir die Zodiac? vhpy
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Boet
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Re: Manie se Raven

Postby Boet » Thu Aug 27, 2015 8:04 am

Iewers binne in hierdie lump, skuil daar n cowling vir n Raven. Net gaan soek.....
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Re: Manie se Raven

Postby Wallaby » Thu Aug 27, 2015 12:58 pm

Prop extension is 4 inches. En Justin, die engine mount is gebou volgens Zodiac spec vir 912 with correct size 4130 tubing vhpy .
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Boet
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Re: Manie se Raven

Postby Boet » Thu Aug 27, 2015 1:22 pm

And now I am searching inside that block for a cowling. Still a moerse lot of sanding to be done. Dirty work. Those poly-u powder goes in EVERYWHERE. :shock: :shock:
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Boet
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Re: Manie se Raven

Postby Boet » Thu Aug 27, 2015 1:23 pm

Induna, bring! vhpy
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Re: Manie se Raven

Postby Boet » Thu Aug 27, 2015 1:36 pm

Side note. Aeroplanes built with pop rivits have 1000`s of little :batteries" imbedded into the skins. Inside every pop rivit hole, sits a piece of steel. Dissimilar metal, plus water= Catode+anode+ water= very tiny electric current. I have seen some of them start to rust. So I suggested we close all those little (Crappy-looking anyway) rivit holes with epoxy, sand them smooth and painted over it does not look like a pop rivit anymore. Watertight, and it really came out very well. BUT it is quite a time consuming job!!
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Pop rivits?
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Boet
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Re: Manie se Raven

Postby Boet » Thu Aug 27, 2015 7:32 pm

Na al die geskuur begin ding later vorm kry.
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My ondervinding. Hoe meer jy skuur, hoe beter kom ding uit!
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En "Oudste en Mooiste het ook vir dad kom help skuur.
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Shnooty
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En toe maak ek nog wing fairings ook
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En toe op n mooi sonskyn dag: Is hy aaamper klaar!!
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Boet
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Re: Manie se Raven

Postby Boet » Thu Aug 27, 2015 7:42 pm

En toe terwyl ek nou so lekker besig is, en al amper gewoond aan die glasvesel wat my moerse laat jeuk, maak ek toe sommer nice wheelspats ook wat werk oor die vurke.
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Wheelspats
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Gatveer
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