WRITING 4 JOSÉ ANTONIO SÁNCHEZ NAVARRO

 Aircrafts move around three well defined axis which are known as longitudinal axis (or x), lateral axis (or Y) and vertical axis (or Z). This three axis define most of the aerodinamics and maneouvres an aircrafts can develope. 

The longitudinal axis (X) determines the roll capability ( eventually known as bank) of an aircraft. The lateral axis (Y) meanwhile determines the pitch capacity of an aircraft ( nose up and nose down). Finally there is the jaw axis, which in turn, defines the capacity developed by the rudder and the fin ( vertical stabilizer), this is the rear part of the aircraft. 

From a flight safety point of view, which should be considered the most important in my opinion, we should take into account all these three axis to avoid certain maneouvres of an aircraft during a flight. We should avoid making any mistake which could lead us to a fatality or an accident. 

The maximum use of the handling characteristics of any airplane, also known in a more generic term as perfomances, are all included in the motions of it around these axis, assuring a safe flight. 

Therefore, it is of an upmost importance the study of the behaviour of each aircraft type around these axis. 

We have got a good example in the acrobatic patrols. Almost in all of the Air Forces over the world. We can find them in the Spanish Air Force, we have got the acrobatic patrol known as Patrulla Aguila ( concerning fixed wing aircrafts), being the CASA C-101 ( E-25 military denomination) the type used and as well, we can find the acrobatic patrol known ASPA ( concerning helicopters). This one, in turn, uses the Colibri or EC-120 ( H-25). They are stationed, respectively in the spanish Air Force Academy based in San Javier, Murcia and the spanish Air Force Helicopters school based at Armilla Air Force in Granada.