Chuck,
No offense to anyone, but I've heard similar things a bunch of times. Saying you earn $.50 an hour sounds great, but I'm not buying it. Here's why I think this way. Let say it takes you 10,000 hours to build the plane. That should cover build time, reading, research and all the stress a person can stand. This is still over three times what Nat say it should take. Now I'm going to pull another number out of thin air. You make $30,000 Profit after selling the plane and paying for what you've invested. That could be build for $30k, sell for $60k or build for $50k and sell for $80k. Nat claims you can sell for 2-3 time the build cost. I've never talked to anyone who has sold their plane, so I can say for sure.
Now back to the simple math. Under this wild scenario $30k divided by 10k hours is $3/hour. Under a more realistic scenario say you invest 3000 hours and still net $30k. With that you make $10/hour. Not bad for a hobby! I'm sure there have been cases of people putting in less hours and making more on their plane, but this is me talking out of my butt as a non-builder.
As for the $3.82 per hour and building for 3000 hours, your That is about a $11 to $12,000 profit. It seems a little hard for me believe that these planes for around $100,000 had $90k invested.
Someone please correct me if I'm totally wrong.
Now my disclaimer: If I am totally out of line for jumping on someone for simply exaggerating to make a point. I apologize. If what I'm saying is correct, why hasn't someone said something before? OH! I know, those smart people are to busy building while I'm still typing.