Originally Posted by blue up
My day job involves flying 767s, so I'm familiar with the fantastic TCAS that would probably have saved these lives had they been able to carry the $1000,000 / 10kg of kit that they'd need to bring it up to 767 level.
Diamond charge $13,000 for the Avidyne (nee Ryan)
TAS 600, which weighs 7.7kg. Better value than an ADF at $10,700 and 4kg, but still too expensive for general use. However, any aeroplane fitted with TCAS should pick up my transponder, even if I don't see them, so I'm all for them.