by Matt Bogard » Fri Nov 23, 2012 6:12 pm
I replaced both the top and belly beacons with the Whelen red LED units and love them - multiple times I've had a "heavy" comment on the approach frequency that I'm very visible. Three screws, a plug, and some RTV is all it takes. The most time consuming part was having the metal base painted to match the Comanche.
Page 26 of the Whelen catalog has more information - basically the beacons are made as a 2.6" diameter unit but most Comanches have a 3.7" dia hole for the old rotating beacons so you want to order the beacon that includes an adapter which fills that space. The beacon uses 4 screws to attach to the adapter and the adapter needs 3 screws to attach to the Comanche. From what I remember the catalog has the red/white model but not the red/red model - call Whelen and they will help you out on getting the right part number.
I also have the Whelen LED Parmetheus landing lights and they are a huge improvement over the old quartz units. I put "landing" lights on both sides but often wonder if I should have done a "landing" light on one side and "taxi" on the other - I think this would give you both the long-distance and wide-width beams to maximize your visibility. Also, I'd love to see a head-to-head of the Whelen versus the AeroLED landing lights as I think those may be even brighter yet.
For what it's worth, Whelen also told me that by next summer they intend to have an approved replacement for our teardrop-shaped nav lights that's a combination LED NAV/LED Strobe setup. I currently have the LED nav bulbs but would love the add in LED strobes as well but it has to be that specific-shaped unit to work with my tip tanks.