There was an aftermarket ice warning device available for PA28s. All the AST Warriors had them fitted. There was a red warning light, which was adjusted in the same way radio squelch is adusted. The light was just turned off. If it came on ice was building.
Most of these aircraft were sold to Oxford Air Training in the mid '90s. I see that G-BTRY is still in their adverts..
I have never seen this device since. I suppose it is not worth the bother or cost as it should be within the ability of the conciencious pilot to use carb from time to time.
D.O.
Last edited by dont overfil; 2nd February 2012 at 14:57.