NOVEDADES DE ART:
TRANSCRIBO LITERALMENTE:
Hi Miguel,
I am at lunch and thought I would drive home to check the email. I will try the landing at LEMD when I get home tonight.
A few items to consider.......
1) Landing flaps are 28 degrees and 40 degrees, 15 degrees is a Takeoff configuration. The suggested Vapp for both 28 and 40 degree approaches are given in the Speed Card rollout window. The speeds listed are adjusted automatically for aircraft weight and altitude.
2) The CoG (center of gravity) is adjusted automatically by the plugin based on the amount of payload that is on the plane. A default payload places the CoG at the zero position. Load more weight and the CoG moves forward, take weight away and it moves backwards. This is due to the fact that the MD-80 wing (center of lift) is quite a way behind the center of the physical fuselage....therefore as the fuselage is loaded the center of weight must move forward to match. With low weight in the plane....the weight of the engines becomes more prominent and the CoG will be rearward. NOTE: You will not be able to change the CoG manually, as it is always kept in the proper position automatically. The amount of CoG movement per unit payload is taken from the takeoff speed card pages. The CoG determines the suggested TAK OFF stabilizer angle, which enables the planes to lift off at the suggested airspeed given on the cards.
The most often reason for pitch oscillations is a wildly variable autothrottle during approach. Since the engines are far behind the center of lift, any change in thrust causes a change in pitch angle. A change in pitch angle changes airspeed, which causes the A/T to move which changes pitch again. It is very difficult to get things settled. You need to give yourself 8nm or more during the approach to get both axis' stabilized for autoland. From my experience with these birds.....giving myself not enough distance/time in the approach, or entering the ILS cone with way too much airspeed, both result in difficulty locking in and autolanding.
Well, I have to go back to work. I will try this landing out and get back to you tonight.
Take care,
Art
MÁS INFORMACIÓN DEL AUTOLANDING Y DEL AUTOMATISMO EN EL MODO TOGA:During Autoland, the TOGA mode is automatic (not possible to disengage). Once 1500ft radio altimeter is reached, the autoland mode becomes active and the TOGA is set to trip if the plane diverges from the G/S more than one bar on the G/S display. That is why it is a good idea to be completely stabilized by the 1500ft altitude point in your Autoland approach. In fact, on the real MD-80s.....I doubt you could achieve a "green" dual mode autoland indication without being somewhat firmly established on the G/S beam. In the simulation....the conditions for Autoland Green are not as strict. Perhaps that is something I could add to the next version of the plugin?
Dinner time and then I will run a few approaches to Barajas.
Art
POR FIN: HE CONSEGUIDO UN AUTOLANDING. PUFFFF!
APROXIMACIÓN: FLAPS 15/ IAS 148
LANDING: FLAPS 28 / IAS 135 / ACTIVAR AUTOLANDING ANTES DE LOS 1500 PIES.
TENER PREPARADO EL DEDO PARA DESACTIVAR EL PILOTO AUTOMÁTICO POR SI SE ACTIVARA EL TOGA
( ES MUY SENSIBLE )
Le voy a pedir a Art si puede añadir una opción en el Plugin para poder configurar la sensibilidad del Glideslope
para por debajo de los 1500 pies NO active de forma tan rápida el TOGA.
Algo así como ( Easy Autolandings / Difficult Autolandings )
COMO COLOFÓN Y RESUMEN DE TODO ESTE EMBROLLO:PARA ISRAEL:
La Versión 8.60 de MD80 TOP FLIGHT HANGAR ( ART GRANDA ) funciona de forma satisfactoria
considerando que NO estaría de más la posibilidad de añadir una opción en el Plugin que permita
configurar el modo de realismo del Autolanding: Autolanding Fácil / Autolanding Realista )
Un Pedazo de Software el avioncito! De lo mejor, de lo mejor.
Un saludo
