PPRuNe Forums - View Single Post - AF 447 Search to resume (part2)
View Single Post
Old 24th May 2011, 23:41
  #2309 (permalink)  
john_tullamarine
Moderator
 
Join Date: Apr 2001
Location: various places .....
Posts: 7,190
Received 98 Likes on 66 Posts
I would have a general concern (maybe you share) that different probe types with slightly different calibration & response might lead to more (spurious) unreliable airspeed events

Probably not something to worry about.

Caveat - the following is generic, not AB specific.

The pitot tube basically is a bit of water pipe facing forward into the wind (it can tolerate modest out of into wind alignment) and with the other end hooked up to the aircraft's innards. One bit of tin pipe is going to be much the same as another. The only fancy bit is some heating to avoid the thing's icing up.

Generally, system errors (providing the pipe hole is not blocked) are not due to the pitot - but may well be due to static port problems. Apart from icing and like physical obstruction, pitot installations are remarkably reliable.

Mixing up the OEM pitots provides some interim redundancy for icing considerations pending the supply chain's catching up with demand for OEM changeover.
john_tullamarine is offline