TCAS II - 2Q's
I'm updating my knowledge of TCAS, to TCAS II version 7 [or later] using an ops manual training questionaire, and an authority issued circular on the subject, dated 2000. Of the 30Q's, two remain which I'm unsure of [Q1], or stumped on [Q2].
Q1. An RA FAIL message on the ND indicates:
a. failure of the radio altimeter input
b. an indicator fault which stops the display of an RA
c. the data tag cannot be computed
Q2. The enhanced advisory INCREASE DESCENT nominally calls for a vertical speed increase to:
a. 2000 fpm
b. 3000 fpm
c. 2500 fpm
Re:Q1, 'b' is my best guess, as there is an automatic self-monitoring sytem, but, if correct why not 'a' or 'c' specifically? Is it that the message would be NO TCAS[a] and TA ONLY[c]?
Re:Q2, The circular indicates that, nominal climb/descent [& climb/descent, crossing, climb/descent] RA's are issued for 1500-2000 fpm. Also, that maintain climb/descent RA's will be nominally issued for 1500-4400 fpm. I have no information for enhanced RA's.
Anyone?
Thanks in advance,
CB