Graeme Copeland
  • nowra
  • Australia
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Graeme Copeland's Friends

  • Robin Hilliard
  • Phill Barnes
  • Chris Sinfield
 

Graeme Copeland's Page

Profile Information

Aircraft Model
STOL CH 750
Project Status
Just started
Building From
Kit
Building Experience
Have worked on airplanes before
Flying Experience
Private Pilot
Building and Flying Info / Your Profession / Other Background Info
10 years military aircraft maintenance experience,Army, RAAF, now currently Navy seahawk maintainer

Comment Wall (10 comments)

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At 10:03pm on March 26, 2011, Robin Hilliard said…
Hmm, for some reason when I use the 3.2mm (1/8") router radius bit on my 1/4" plate, I get a big flat spot between the rounded bits... confused. No more time this weekend, will try to work out what's happening.
At 11:21pm on March 25, 2011, Robin Hilliard said…

I'm having one more attempt at reinforcing my home-built bending brake to do my own spar flanges, although Dave (another scratch builder who just ordered his plans yesterday) told me he has a friend with a monster 4m brake in Brisbane as a backup plan.

I've bought a 3m galvanised steel window lintel and some lengths of 1/4" 2024-T3 plate that I'm going to radius with the router and bolt onto the lintel - this is my new top clamp for the brake. I've straightened up the edge of my bench with a straight edge and thickened epoxy, and I'm welding reinforcements onto the swiveling bit to make it stiffer.

For the flute recesses I used a round file and finished with 60 grit paper - on maple forms with a good file it is a really quick and pleasant way to do it.  George reckons Portugal make the best files - I can recommend the set he sold to me.

At 6:34am on March 10, 2011, Robin Hilliard said…
...and sourced a Scotch-Brite wheel locally, and made a mounting adaptor for my grinding wheel on his lathe when it turned out to have a non-standard radius, as I said, very helpful guy.
At 6:32am on March 10, 2011, Robin Hilliard said…
BTW he actually supplies the RAAF with some specialty tool kits.
At 6:31am on March 10, 2011, Robin Hilliard said…
From Austools - tell George that it's the one Robin asked for, and that I haven't forgotten I'm supposed to return that socket attachment he gave me to try out :-). George got me my clecos and other stuff - very helpful guy, knows tool distribution scene in Australia very well, can't always match Aircraft Spruce but will try his best.
At 4:45am on March 7, 2011, Phill Barnes said…

Hi Graeme

That's really odd that performance metals don't have 6061-T6 .016". I have purchased it from them before. Amother place to try is Airport Metals in Vic. http://www.airportmetals.com/aboutus.htm

When I contacted them last they had a $200 minimum order.

I have not had to buy too much metal for my plane as it was a quick build kit.

Are you home now? If so you can give me a quick call now if you like. 07 5483 2085

 

Phill

At 4:50am on March 6, 2011, Robin Hilliard said…

Oh and regarding the Bandsaw, I got a wood bandsaw with some speed control from Hare and Forbes - Brand is Seinsich or something. It's their mid range wood one for around $600. With an 18 TPI blade at the slowest speed it cuts Aluminium without a problem (in fact it cleans the blade if I've been cutting gummy-wood).

 

That said, I find I am using the scoring knife (as per the Can-Zac video) for almost all my metal cutting, and mainly use the bandsaw for cutting wood forms (maple is the nicest wood I've found for this purpose). When you cut the metal with the bandsaw you definitely get tooth marks, and you need a vixen file (another surprise - these files are a must, really quick and nice to use) to get rid of them before using the scotch-brite wheel.

At 4:41am on March 6, 2011, Phill Barnes said…

Hey Greame

Have you started building your aeroplane yet?

 

Phill

At 4:38am on March 6, 2011, Robin Hilliard said…

Hi Graham,

Things have been going slowly the last few months - I had to repair my boat after blowing up a buoyancy tank with an air hose (aargh) and various other projects. But then the nice thing about a metal project is that everything stays as you left it. I was just cleaning up the workshop today to continue building.

 

Project Flickr Album

 

I have all my rudder parts made and am starting on horizontal stabiliser parts. The major issue I have had on the scratch building project has been bending spar flanges - I have had four attempts at the rudder spar to date, tried building a longer bending brake and have come to the conclusion that if scratch building you should buy all parts with flanges in material thicker than 16 thou and longer than 4 feet (I have 4 foot brake) from Zenith. Luckily there aren't many:

  1. 75R2-3 Rudder Spar
  2. 75T1-4 Stabiliser Front Spar
  3. 75T1-5 Stabiliser Rear Spar
  4. 75T3-5 Elevator Spar
  5. 75A1-4 IB Flaperon Spars
  6. 75A1-5 OB Flaperon Spars
  7. 75W4-4 to 7 Wing Rear Channels

I think this is it but may have missed some.

At 6:31am on October 10, 2010, Phill Barnes said…
G'day
Welcome to the clan.

Phill
Gympie, QLD
 
 
 

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