This blog documents a project to build a functional Lockheed L-1011 cockpit replica
using real flight hardware, NI labVIEW and the x-Plane software platform.
L-1011 - CPT Installation at the Museum - Captain's Flood Light
L-1011 Captain's Flood Light - LED Retrofit
Next in the Flood Light retrofit of the L-1011 Trainer at the National Museum of Commercial Aviation in Atlanta is the Captains Main Instrument Panel. Both the F/O's as well as the Captain's Instrument Panel flood lighting are controlled by a potentiometer located on the glare shield.
L-1011 Flood Light Dimmer Controller.
The image above shows the flood light dimmer potentiometer on the First Officer's side of the glare shield. The potentiometer controls a 12VDC PWM dimmer that directly drives the LED's for the respective flight station. The procedure trainer did not have any of the light controls previously connected to the potentiometer, however, the actually potentiometer was originally installed. The image below shows the retrofit of the potentiometer with cable connections to the PWM dimmer.
L-1011 Flood Light Potentiometer for Dimmer
The LED strips are mounted into the original light fixtures under the glare shield with double-stick adhesive tape. The following to images show the inside of the light fixture with two strips visible and another two obstructed by louvers the protect the flood lights from spilling into the cockpit.
L-1011 Flood Light LED Retrofit - Low Intensity
L-1011 Flood Light LED Retrofit - Medium Intensity
Mounting the LEDs actually took quite some time because we wanted to make sure that they really matched the look of the original fluorescent tubes.
L-1011 Captain's Flood Light - LED Retrofit
Here is a short video of the PWM dimmers in action. They are very inexpensive devices but work really well with the LED strips.
And finally a few images of the finished Capatin's and First Officer's under panel flood lighting.
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