Probes and Sensors

[donnlass]

Hello

Hope you are all enjoying this fine Bank Holiday weekend.

While understanding the importance of pitot ports and probes which are around the fuselage of an aircraft for detecting pressure around the aircraft in flight I was just unsure what the two on top of the fuselage are.

Are they probes as well or aerials?

Any explanation would be welcome please.

Cheers

Donnlass:oh:

[NutLoose]

What aircraft?

[donnlass]

Hi Nutloose

I thought most aircraft had them but let's say a Boeing 767-300 or any Boeing or Airbus aircraft.

Cheers

Donnlass

[spannersatcx]

no probes that I am aware of on top of a fuselate on modern boeings or airbus. Plenty of antennae, vhf/satcom/tcas/gps/elt/atc etc

[donnlass]

Hi all

My partner was querying why on airliners there will be for example Boeing 767-200 then the pic caption says 767-223.

He sees it often on pictures of aircraft in magazines where the label on the aircraft says Ethiopian Airlines Boeing 757-500 but the caption underneath says Boeing 757-231 for the same aircraft.

Or an Airbus A320 name on the plane but the caption says A320-214.

How come the captions are different than the names on the fuselage?

If anyone knows and can let us know, cheers.

Donnlass:confused::confused:

[donnlass]

Hi all

My partner was querying why on airliners there will be for example Boeing 767-200 then the pic caption says 767-223.

He sees it often on pictures of aircraft in magazines where the label on the aircraft says Ethiopian Airlines Boeing 757-500 but the caption underneath says Boeing 757-231 for the same aircraft.

Or an Airbus A320 name on the plane but the caption says A320-214.

How come the captions are different than the names on the fuselage?

If anyone knows and can let us know, cheers.

Donnlasshttp://static.pprune.org/images/smilies/confused.gifhttp://static.pprune.org/images/smilies/confused.gif
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[donnlass]

Please ignore these!!! LOL

[Mad (Flt) Scientist]

Boeing use a customer-specific identifier for the last two digits of a series.

So the generic airframe might be a Boeing 767-200, but when delivered the airline X, it becomes -2ab, where "ab" is a specific pair of numbers (and even i believe letters in some cases) which identifies the airline.

I believe they also use the same "ab" pairing for different models - so if there's a, say, Boeing 767-245 and a boeing 757-345, the common "45" means they almost certainly are to the same airline's specification.