A flight simulator made out of a real 737 cockpit

[Trent] sent in an awesome story about a single man who bought the nose of a 737, put it in his garage, and built a flight simulator inside the cockpit. His name is [James Price], and right now the only thing we’re wondering is when we can have a visit.

The cockpit came from an aircraft boneyard in Oklahoma. After [James] plunked down $1500 for the shell of a cockpit, he moved his new toy to a Livermore, California aircraft hangar and eventually into his garage. While the plane is meant to be a simulator, [James] is a tinkerer at heart: he says the best part of building his 737 is building the systems, programming the computers, and making everything work together. We’ve got to admire that.

Of course this isn’t the first cockpit-in-a-garage build we’ve seen. Years ago we featured an Avro Lancaster, and just a few months ago we saw a strikingly similar replica 737 flight deck (it’s made out of wood, and not a real 737). [James]’ build is one of the very few home-built simulators made out of a real airplane. Someone get this guy an F15 cockpit stat.

Collimated displays wrap around that home cockpit

We don’t recall having heard the term ‘collimated display’ before, but we’ve seem them in action. These are mirrored projection display that give the viewer a true peripheral vision experience thanks to well-designed optics. Here is a project that [Rob] and [Wayne] have put a ton of time into. It’s their own version of a DIY collimated display that uses a shop vac and Arduino to form the screen shape.

The frame above is the structure that will support the screen. A sheet of mylar was later attached to the edges of that frame. That is pulled into place by the suction of the vacuum. But it needs to be stretched just the right amount or the projected image will be distorted. They’ve got something of a PID controller to manage this. A valve box was built to vary the amount of vacuum suction inside the screen’s frame. A switch positioned behind the mylar sheet gives feedback to the Arduino when the screen reaches the appropriate position and a servo closes off the suction box. If you lost us somewhere in there the description in the clip after the jump will help to clear things up.

Here’s an unrelated project that implements the same concept on a smaller scale.

[Read more…]

Improving your flight sim experience with Hall effect sensors

hall-effect-controls

[Gene Buckle] built himself a nice custom cockpit for playing Flight Simulator, but during use he found that the gimbal he constructed for the pitch and roll controls was nearly unusable. He narrowed the problem down to the potentiometers he used to read the angle of the controls, so he set off to find a suitable and more stable replacement.

He figured that Hall effect sensors would be perfect for the job, so he picked up a pair of Allegro 1302 sensors and began fabricating his new control inputs. He mounted a small section of a pen into a bearing to use as an input shaft, attaching a small neodymium magnet to either side. Since he wanted to use these as a drop-in replacement for the pots, he had to fabricate a set of control arms to fit on the pen segments before installing them into his cockpit.

Once everything was set, he fired up his computer and started the Windows joystick calibration tool. His potentiometer-based controls used to show a constant jitter of +/- 200-400 at center, but now the utility displays a steady “0”. We consider that a pretty good result!

[Thanks, Keith]