Manie se Raven
Moderator: Tailspin
Manie se Raven
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. 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.
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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.
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Re: Manie se Raven
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 .
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 .
Re: Manie se Raven
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.
Re: Manie se Raven
Next step will be to pour some poly u foam around the frame. A messy job.
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- Frequent Flyer
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- Joined: Tue Aug 30, 2005 5:25 pm
- Location: Pretoria
Re: Manie se Raven
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.
Re: Manie se Raven
He he he.....
- Induna
- Nothing beats flying
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- Joined: Tue Mar 20, 2012 10:00 am
- Location: Port Owen - Western Cape
Re: Manie se Raven
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..
Jacques
Daai enjin mount is reg. Dis dieselfdte Zenith factory mount wat ek op my Raven het en het geen probleem met die CG..
Jacques
ZU-IIJ | Zenith CH650B Taildragger
ZU-RHT | Magni M18 Spartan
ZU-RHT | Magni M18 Spartan
- Induna
- Nothing beats flying
- Posts: 410
- Joined: Tue Mar 20, 2012 10:00 am
- Location: Port Owen - Western Cape
Re: Manie se Raven
Boet, gaan jy vir my ook so mooi cowling maak vir die Zodiac?
ZU-IIJ | Zenith CH650B Taildragger
ZU-RHT | Magni M18 Spartan
ZU-RHT | Magni M18 Spartan
Re: Manie se Raven
Iewers binne in hierdie lump, skuil daar n cowling vir n Raven. Net gaan soek.....
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Re: Manie se Raven
Prop extension is 4 inches. En Justin, die engine mount is gebou volgens Zodiac spec vir 912 with correct size 4130 tubing .
Life- I did it my way.....
The world is not enough!
- Manie Rossouw
The world is not enough!
- Manie Rossouw
Re: Manie se Raven
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.
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Re: Manie se Raven
Induna, bring!
Re: Manie se Raven
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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Re: Manie se Raven
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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Re: Manie se Raven
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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