Hi Bill,
As you should already know, is that if you plan to design a piece of equipment that requires a Test House Certification, you study the relevant rule/s that apply before you start your design and then design accordingly.

Submit for Certification and modify the design if required.

I would expect the TS of this Thread to check and understand the regulatory requirements before he designs and then submit for approval, before he uses the 'light' on his aircraft.

E

 

Hi Bill,
As you should already know, is that if you plan to design a piece of equipment that requires a Test House Certification, you study the relevant rule/s that apply before you start your design and then design accordingly.

Submit for Certification and modify the design if required.

I would expect the TS of this Thread to check and understand the regulatory requirements before he designs and then submit for approval, before he uses the 'light' on his aircraft.

E

I would anticipate that also, BUT based on the postings that I have seen since I started here, I would not bet on it. In addition, redundant advice that is correct should not be an issue.
When I had to teach somebody how to use a machine, it aways began with the safety cautions, and "You already know this, but I am obligated to tell you", followed by the safety remarks. None were offended.

 

@ludesert your description sounds like you are ADDING lights to your aircraft's existing light package (and you are NOT replacing/retrofitting any). Since it was clear to me, and should have been clear to everyone else, I assume they have no answer to your question and are electing to debate regulations instead.

that are not certified because they are the wrong color,

Umm. The requirement for tail lights and brake lights in the United States (and I assume Canada) is, "red". If you find non-red lights on eBay, you should assume they are not tail lights or brake lights.

 

It was clear me that the TS was ADDING a light.
He posted: a strobe light which will be mounted on a small aircraft

Post #16 is one possible option as an answer to his question.

Post #14. I was not debating the Regulations with the TS, I reminded him, that he should check the regulations.

 

hi,
The Rules about lasers are quite clear and no big deal or burden, if they are correctly understood.
I designed/manufactured and sold worldwide laser ranging devices for over 20 years.

E

Hi ludesert,
Have you checked the regulations regarding the intensity and colour of aircraft flashing lights.?
E
https://www.legislation.gov.uk/uksi/1987/1812/made?view=plain

You're right.

 

I want to have red color because it will be more visible in certain flight conditions (eg: near clouds) ...

You don't get to choose the colors, they're mandated by FAA rules. Navigation lights (Nav Lights) are required to be RED and GREEN. Red on the port (left) side and green on the starboard (right) side. Nav Lights don't strobe. Anti-Collision (AC) strobes are RED. They strobe, flash or sweep back and forth (or rotate, not sure). AC strobes are typically mounted on top and on the bottom of the fuselage.

Straight ahead is not so hard, it is at an angle that the challenge is big.

LED's DO have a viewing angle. Get a little off that angle and they can be hard to see.

The lens you chose is giving you about 52° more or less.

This makes the viewing angle even worse.

I would expect the TS of this Thread to check and understand the regulatory requirements before he designs and then submit for approval, before he uses the 'light' on his aircraft.

It's possible the TS mounted his test lights on a board and then went to a field large enough to test according to the sight distance he mentioned. I'm HOPING he's not testing lights on operational aircraft, especially at night.

I'm not a pilot. However, I've worked for two major aircraft manufacturers and one smaller aircraft servicing depot. I know a little about the lights because testing them was one of my function tests for one of the major manufacturers. Keep in mind I said "I know a little." Emphasis on "Little". I'm not experienced enough to argue with the big boys here. I just offer my point of observations to further discussion about this topic.

Overall, I think adding lights to an aircraft can be confusing to other pilots. Sure, they may see you better, but then they may be confused as to what they're seeing. Exterior lighting was one of my function tests, including wing tip strobes. Xenon Flash Tubes were used in all flashing types of lighting whereas the Nav Lights were constant monochromatic and always on. Logo Lights, Nacelle lights and landing lights make up the rest of the exterior lighting. Adding extra lights will likely be confusing. On that point alone it's not likely you'll get approval to operate such extra-equipped aircraft.

 

Anti-Collision (AC) strobes are RED.

Thank you captain, That is exactly what he said he was adding.

 

@ludesert
The LED you posted from Cree is an agricultural light at 660nm peak. As you approach the human eye limit, lights seem dimmer even at high power. Look for something in the 625 to 635nm range - it will appear much brighter than an LED emitting 660nm (even if both LEDs have the same cone angle of emission and same power) . There is no super specific wavelength given by the FAA (just as SAE and NHTSA do not specify a specific red color for taillights other than "red"). If you get below 625nm, some people may call the color "orange" - but that also depends on the exact shape of the emission curve of the LED.

This is the one you posted - considered "deep red" and not great for bright red.
https://cree-led.com/products/xlamp-leds-discrete/xlamp-xp-g3

 

You don't get to choose the colors they're mandated by FAA rules. ... Anti-Collision (AC) strobes are RED.

Just a point, 91.33(c)(3) of the the color to be either aviation red or aviation white.

Also the OP doesn't seem to be flying in US airspace:

Some of you guessed right, this is for a real aircraft; it will comply with EASA rules CS-SC032b.

The EASA is the European Union Aviation Safety Agency.