June 29, 20169 yr Cockpit noise is generally less than 85 dB. Interphone use in the cockpit is optional...so the one ear DCs are used as a replacement for the really nice Telex in-ear headsets. The DCs are heavy and stupid looking. Bring back the Telex (less than 1 oz)!
June 29, 20169 yr David Clark is currently testing a one-ear version of the DC Pro (https://www.go-dcpro.com/passive-headset-features). There are a couple test sets floating around both McGuire and Travis. A lot lighter than the current DCs, so we'll see if they decide to market them. I personally am not a fan of the Telex. Definitely miss the Bose A20 from my previous jet. The KC-10 comm system uses a non-standard PJ-051 plug, that as far as I know is not used on any other military aircraft. While many commercial aircraft have similar one-ear setups since their cockpits have decent noise insulation, the -10 fleet is limited to either the specific DC or Telex options due to that plug. The jet basically has a bunch of military equipment shoehorned into a FAA-cert'd airframe, so without going into a big history lesson, this is one of the "solutions." Edited June 29, 20169 yr by jango220
June 29, 20169 yr I tried the Dave Clark single-ear several times during a week-long trip, when they first became available (the other boom on the crew was one of the first in the SQ to get one... little scammer). I didn't like the way one ear was dead-quiet except for radio calls, and the other ear dealt with all the cockpit noise (some of the jets have a lot more ventilation system flow noise than others, for some reason) along with the crew communication. Dealing with that aural difference gave me a nasty headache after about an hour, but it's possible that my pre-existing hearing damage had something to do with it. I much preferred my in-ear Telex, with the molded plastic earpiece the dental hobby shop cast for me. I will say the DC made hearing radio calls very easy, even when the radios were... challenging... but for me the headache-induced negative SA outweighed the positive SA of hearing radio calls easier.
July 4, 20169 yr I personally hate the single ear. Cockpit may be below 85 dbs but it still ain't quiet. I'm kinda soft spoken already. I'd love to have a A20 and just talk on interphone the whole time.
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