Telex Airman 750 Single Vs Double Side?

[abenk1984]

To be use in B737-300/400
Which one do you prefer?
Why?

Thanks
Best Regards.

[SNS3Guppy]

I prefer double, as I don't hear well with just one ear.

When radio traffic is light, I can always cock the other earphone behind my ear for cockpit conversation.

When I really need to hear what's going on with the radio, I prefer to have that sound in both ears. Too many hours behind and between radial engines has meant I need all the help I can get.

[Manual Reversion]

.....or even an 850 if your funds will stretch to it. That's my preference having tried both.It's quite noisy on a 73 flight deck.

[Denti]

Yup, the 737 is pretty noisy, however its not as bad in the classics at now common CIs below 30. Anyway, if your funds are big enough i would go for the 850ANR, works like a charm in the 737 both classic and NG.

[westinghouse]

double sided anyday anytime!

the anr 850 is quite good. i use it on the 320 and find it does keep up to its promise. cant really find any faults with it so far.

[abenk1984]

Hi All..

Thank you for your advice.. :ok:

Safe Flight

[AceOfHearts]

I had one question on this. How does a single sided fair up to a double sided when it comes to multi-crew environment? Isn't a single sided one better since it leaves one side for the cockpit and the other side for ATC?

I just bought an 850 but having this thought on whether to exhange for 750 single sided or not just for the above reason... (not flying yet but going off somewhere to work where I may need a headset).

Advice appreciated. Thanks in advance.

[ExSp33db1rd]

God gave most of us 2 ears. What's the argument ?


I can always cock the other earphone behind my ear for cockpit conversation


No further discussion necessary.

[powerstall]

Guess some guys don't knoq how to count! :confused:

[AceOfHearts]

If you can't be respectful towards others, then don't bother replying.

[ItsAjob]

Single sided.
One ear for atc, the other ear for arranging the evening night spot with the girls!

[Dream Land]

I like the double sided, easy enough to pull one side away from your ear when you need it, but nice to have both sides when needed.

[411A]

Double-sided, and leave the speakers OFF...thank you.

[excrab]

Go for double sided.

The 737 is not a quiet flight deck. A few years ago Balpa, in conjunction I believe with the university of Southampton, did a fairly sophisticated noise survey on a BA 737-400 and the conclusion was that the noise levels experienced (which are a function of the decibel noise level and the cumulative exposure time) were such that hearing impairment was possible if flying with one ear uncovered. I believe you will the report on the internet if you google it.

A large part of the problem flying with one ear uncovered is the noise level at the ear drum of the covered ear, as the radio volume has to be increased to compensate for the noise on the flight deck. Flying with both ears covered reduces the volume at which the comunications radios must be set. If you need to talk cross cockpit Boeing spent a large amount of money designing and installing a flight interphone system. If your aircraft are not fitted with switches on the yoke which stay in the interphone position then an elastic band on the ASP interphone selector switch will solve the problem of having to press the button to talk to your colleague.

I have used the telex 850 on both classics and NGs and it is excellent, and has the advantage that it is powered from the mic bias current so you don't have to carry spare batteries around.