How do I make this part?

**brinesharks** · 30th April 2009, 09:53 PM

Originally Posted by BrettG

Thanks for the link brinesharks, I'll certainly scope those designs out = A P40!! music to my ears my friend. [Sigh].. yeeesss.. the size of the WAR aircraft is definitely a concern = 5'10'' + Kg ++.. curse my parent's lofty stature and healthy appetite. I'd like to investigate rescaling them ( the WAR design, not my parents) I believe there's a 75% design in development based on the WAR construction. Plenty of research to do as yet.

Btw. Re your request for timbers. In the FEB 09 issue of Recreational Aviation Australia, Steve Bell ( technical editor ~ Wood and fabric man) offered a trailer load of Spruce to anyone that could get to Canberra and collect it. (If I was able to, I'd be on the road right now!!) Probably to late, although it may pay to contact him. ( sorry I don't have the mag handy right now ~ contact details?.. google the mag title..?)

Gah! Can't believe there was free Spruce!!! I have sent an email off to Steve just in case. I'll run there if I have too!

Regarding rescaling the WAR designs - I'd personally avoid it unless you are confident in redesigning aeroplanes (particularly calculating stress loads). I'd go for the Jurca design - he was a well renowned designer and he liked to build aerobatic capable aircraft. Gives you a good safety margin. P

**ian** · 30th April 2009, 10:58 PM

Briney

you may want to consider getting a small drop saw – much more convienent than the table saw when it comes to docking strips to length.

also, depending upon the number of parts you need to machine, I strongly suggest you investigate getting a small shaper.

ian

**brinesharks** · 30th April 2009, 11:12 PM

Originally Posted by ian

Briney

you may want to consider getting a small drop saw – much more convienent than the table saw when it comes to docking strips to length.

also, depending upon the number of parts you need to machine, I strongly suggest you investigate getting a small shaper.

ian

Thanks for the tips. I have been looking for a drop saw for a while but couldn't really justify it. I was planning to use my Japanese hand saws where I could. Apparently they are handy for antique aeroplane work.

I don't know if I can afford a shaper - they all seem pretty expensive for what they do. I have a friend who is building a Sopwith Snipe which has the same sort of construction (but being British is overly complicated!). He says a good hand held router does almost everything he needs shaping wise. The rest he does by hand (like the wing struts for example - they have an aerodynamic profile). Still, if I find a second hand shaper for the right price I will certainly consider it. I have a few vertical and cross members in the fuselage that are spindled out to a 'T' beam cross section. The dimensions are 40mm x 28mm and the 'T' section is down to 8mm from memory. Lots of saw dust...

**ian** · 1st May 2009, 12:55 AM

Originally Posted by brinesharks

I don't know if I can afford a shaper - they all seem pretty expensive for what they do. I have a friend who is building a Sopwith Snipe which has the same sort of construction (but being British is overly complicated!). He says a good hand held router does almost everything he needs shaping wise. The rest he does by hand (like the wing struts for example - they have an aerodynamic profile). Still, if I find a second hand shaper for the right price I will certainly consider it. I have a few vertical and cross members in the fuselage that are spindled out to a 'T' beam cross section. The dimensions are 40mm x 28mm and the 'T' section is down to 8mm from memory. Lots of saw dust...

without pushing the point too hard, I've recently had the opportunity to use a small shaper. Compared to a table mounted router it's much easier to use and will spin bigger cutters

ian

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