Sometimes ideas won't go away.
3 years ago
As most of my watchers know my hobby is aviation... and I have been playing with different aircraft designs over the many years.
The problem I've been having is to develop an airframe that is adaptable for the builder. Someone wants tandem seating another wants side by side...
Over the weekend I worked out a way to do that with a central spine that everything attaches to. And it could be flown with no sides panels on at all.
Looking at the price of steel and aluminum tubing and aluminum sheet tells me I want to use as little of it as possible.
So the spine will be made of wood, foam, fiberglass and epoxy. The spine will be six inches wide. It will run from the forward most bulkhead to the tail and from the wing spar attach fitting down to the bottom of the fuselage where the landing gear attaches.
The side panels will be paper-glass so it should be fast to build.
It's going to be about the size of a Piper J-3 Cub and carry about the same load of people gass and gear.
In the background of my mind is a larger one that is a four place aircraft using the same spine concept for the most part.
Rich is very intrigued with this build idea.
Be safe out there guys the crazies are out there.
Blessings fem
The problem I've been having is to develop an airframe that is adaptable for the builder. Someone wants tandem seating another wants side by side...
Over the weekend I worked out a way to do that with a central spine that everything attaches to. And it could be flown with no sides panels on at all.
Looking at the price of steel and aluminum tubing and aluminum sheet tells me I want to use as little of it as possible.
So the spine will be made of wood, foam, fiberglass and epoxy. The spine will be six inches wide. It will run from the forward most bulkhead to the tail and from the wing spar attach fitting down to the bottom of the fuselage where the landing gear attaches.
The side panels will be paper-glass so it should be fast to build.
It's going to be about the size of a Piper J-3 Cub and carry about the same load of people gass and gear.
In the background of my mind is a larger one that is a four place aircraft using the same spine concept for the most part.
Rich is very intrigued with this build idea.
Be safe out there guys the crazies are out there.
Blessings fem
FA+

There are some good scratch built designs out there that could be refitted with newer engines.
Another engineer friend said, "A good engineer copies good ideas and a bad engineer copies bad ideas." There was no mentioning of comming up with your own new ideas. I witnessed this a number of times while working at Genie Industrys welding man-lift parts. They showed a complete lack of practical knowledge and experience yet they were the first to tell the welder and fabricators how to do the job. At one point I handed my weld gear to the engineers and told them "Show me how you think it should be done assholes!"
Not one would even try, I called them cowardly know nothing assholes. The manufacturing engineer was standing there with the biggest grin on his face. He knew I was right.
I wrote computer programs for a living for over 25 years. I had a Computer Science degree; most of my coworkers didn't. A manager I had said the best COBOL programmers were good copyists. I realized that's why she was a manager, because she couldn't write code for squat.
I had to maintain those people's code; most of it was c@rp, thousands of lines of garbage, copied whole from another program because it sort of did what was needed. When I would have to change the program I'd waste hours or days tracing logic that went nowhere because it was part of something else. Ten years into my career I realized it was more efficient to write fresh code or copy my own work.
The funny part came when I hurt my back the first time and I was on opioids for the pain. I'd take one on the bus before I got to work so it would be working when I got in. I needed to revise an entire program to bring it up to date to work wit the latest version of the computer language it was written in. I started with a 'clean piece of paper', writing all fresh code. I cranked out a really complex program in 5 days, which is an accomplishment. The first time I tried it, it didn't work, but I realized after walking through it that I was calling parts of it in the wrong order. Easy fix. The client tested it and pronounced it good -- better than the one it replaced.
When I got off the meds, I looked at the program again because they asked for a new function. It took me two days to figure out how it did what it did. I made LOTS of notes and included the most important ones at the top of the program. My friend John had taken the package after a merger but came back as a consultant, working for me. I assigned him another tweak for the program and he came back a couple hours later shaking his head. I just smiled and sent him all my notes about it in an eMail. The next day he asked me to test his changes, and it worked fine. He said he had never seen code like that before -- beautiful and efficient, but not the usual stuff he was used to. When I told him I wrote it higher than a kite on the opioids I thought he would laugh himself silly. He said I wrote better code zonked out of my mind than most people did cold sober.
Rich offered my idea of the spine is cluncky as engineering goes, but is elegant and simple in design and function. Why add stuff thats not needed for the task.
I'm working on strong, light and simple to build.
Vix
But I'm not ruling out the possibility of a light weight single place design... I have a design in the back of my mind of personal air recreational craft... much like the Australian Tyro aircraft.
Vix
Vix