RV-7 plans available in metric measurments ?

[newimaging]

I am more asking this question to tease, but are the RV plans available in metric measurements. I am originally from Germany, and trying to figure out the 3/16's and then converting that in half, then going decimal with it to 0.1875 and then finding a ruler that can actually measure that, seems to be the hardest part of building the plane

Christian

[flyvans.com]

christian,

it all sounds initimidating at first...
but after a while you really get the hang for it, it's not that hard. because usually you require the same 4 sizes of drills, the same 4 thicknesses of aluminum etc... it's just weird numbers. forget about changing the kit to metric, that's bound for failure! much easier to take cheap harbour freight wrenches and tools back home from your next trip to the u.s. (just remember to take an extra bag and expect the bags to be opened due to all the metal *G*)
the hardest thing is getting all the right tools to europe, once that's done it's pretty straight forward.
at the same time i wish van had designed everything in metric, but that's just the way it is.

rgds, bernie

[Andy Hill]

Christian

You will give in eventually like you will also get a pneumatic squeezer - so once you accept that, suggest you get the imperial rulers ASAP. Much easier in the long run / less mistakes I think?

Good luck!
Andy

[mototopo]

Hi Christian, I don't think there are plans available in metric. I'm from Italy and imperial measurements are one of the first cause of my building errors. Buy imperial measuring tools and avoid to convert them to metric, try to think "imperial"... to measure 3/16" buy a fractional rule.. my rules are graduated in 32nd of an inch.. so measure 6/32", no need for converting it in decimal equivalent or metric.

Metric system is way more intuitive.. what drives me crazy is the system used to identify the size of drill bits... fractional.. wire gauge....letter.... !@#@!! Fortunately we use almost only wire gauge drills and ... remember: bigger number = smaller hole... (WHY ?!?!??!?)

[pierre smith]

...almost 7,000 RV's are already flying. Just use what you have,

Best,

[WingsOnWheels]

Originally Posted by mototopo

... remember: bigger number = smaller hole... (WHY ?!?!??!?)

I can actually answer that one. The number is the quantity of dies the wire passed though to reach that size during forming. So, the more dies, the smaller the wire. Good ol' fun-fact for you.

Best bet is to buy a 6" and 24" machinists rule graduated in 32nds, and 64ths on one side and 1/10 and 1/100 on the other. There are times where having the decimal scale is handy, but for the most part you will use the fractional.

[chris mitchell]

Just to add support to the other comments - in the UK we are meant to be metric of course - in my boat building days I worked in millimetres and the measurement diagrams were all in millimetres, so that was very much what I was used to.

It took about 2 days of RV building using imperial measurements before I thought - gee - this is EASY. Half of 5/16 is 5/32, double 3/8 is 6/8 and so on - much easier than half of 17mm, twice 1.31cm etc.

Of course, I now have two sets of tools - imperial for American planes, metric for German cars......

Chris

[newimaging]

Thanks guys , I guess I`ll start with a new ruler

[JonJay]

Originally Posted by newimaging

Thanks guys , I guess I`ll start with a new ruler

I have European and American airplanes. If any of you folks know a good source of metric aircraft hardware, let me know.

[FlyingArcher]

Originally Posted by JonJay

I have European and American airplanes. If any of you folks know a good source of metric aircraft hardware, let me know.

ULM Technologie in France has an online shop. You can select an English version of their product list and you should find all the metric hardware you need.

Exact France is more specialized in fittings and adapters between metric and imperial sizes.

Hope this helps