Jeff Argersinger
Member
We spoke to many people this year at Oshkosh and one of the hot topics was regarding light output of the LED lighting choices that are now available. Several threads on VAF indicate the same interest as well.
Although there are many well built, attractive alternatives in the marketplace, Whelen's design objective is to provide products designed, and approved to FAA/TSO qualification standards. By doing this, it relieves the homebuilder or OEM from the time consuming task of proving FAR compliance of their lighting system to the FAA on their own, (if the aircraft is to fly at night).
The purpose of the first test was to show the differences in the anti-collision light output between the Whelen Model 90400 series FAA/TSO certified LED anti-collision light, and the Aeroleds Pulsar EXP non-certified LED anti-collision light. This is purely a light output comparison only, NOT a design critique.
http://www.whelen.com/_AVIATION/images/temp/graph-1.htm
The second test was conducted to provide light output data to answer the many LED landing light questions we also received at Oshkosh. This test compares the light output of the Whelen Model 71141 series LED landing/taxi light, 71125 series and the Aeroleds SunSpot, LED landing light. This is purely a light output comparison only, NOT a design critique.
http://www.whelen.com/_AVIATION/images/temp/graph-2.htm
The photometric tests were conducted in house at Whelen using a Hoffman Engineering goniophotometer system in a fully certified chamber, in an accredited lab. This is the same system used to certify our LED products currently in use by multiple OEM's.
Additional product testing is currently in progress.
Although there are many well built, attractive alternatives in the marketplace, Whelen's design objective is to provide products designed, and approved to FAA/TSO qualification standards. By doing this, it relieves the homebuilder or OEM from the time consuming task of proving FAR compliance of their lighting system to the FAA on their own, (if the aircraft is to fly at night).
The purpose of the first test was to show the differences in the anti-collision light output between the Whelen Model 90400 series FAA/TSO certified LED anti-collision light, and the Aeroleds Pulsar EXP non-certified LED anti-collision light. This is purely a light output comparison only, NOT a design critique.
http://www.whelen.com/_AVIATION/images/temp/graph-1.htm
The second test was conducted to provide light output data to answer the many LED landing light questions we also received at Oshkosh. This test compares the light output of the Whelen Model 71141 series LED landing/taxi light, 71125 series and the Aeroleds SunSpot, LED landing light. This is purely a light output comparison only, NOT a design critique.
http://www.whelen.com/_AVIATION/images/temp/graph-2.htm
The photometric tests were conducted in house at Whelen using a Hoffman Engineering goniophotometer system in a fully certified chamber, in an accredited lab. This is the same system used to certify our LED products currently in use by multiple OEM's.
Additional product testing is currently in progress.