PPRuNe Forums - View Single Post - Category A PC1 or PC2
View Single Post
Old 1st June 2023 | 11:08
  #27 (permalink)  
alexandre.vidual
 
Joined: Mar 2021
Posts: 19
Likes: 3
From: Vitoria
"The FAA avoids this situation by alleviating from this limitation in FAR 91.9(d) - but only for operations over water." - Same thing here in Brazil.

Jim,

I believe that something that can be added to the content is the Operations without an assured safe forced landing capability (OpsSpec H 305?). Could you write something about it?

I found this Advisory Circular from CASA:

https://www.google.com/url?sa=t&rct=...--F1nH32pflzgH

FAA has already authorized Bristow to operate in this manner. Can we consider a breakthrough? Should other countries follow?

https://www.google.com/url?sa=t&rct=...qioq8TNreJjOyc


212man,

"The Category Ahorizontal takeoff procedure shown diagrammatically in Figure 4-7 features variable Takeoff Decision Points (TDP) and Takeoff Safety Speeds (Vtoss). The TDP, expressed only in terms of airspeed, is selectable in 1 knot increments between 30 and 48 knots. Vtoss is TDP + 15 knots. This permits payload to be traded off against available field length in such a manner that Category Aone engine inoperative (OEI) climb performance minima can be maintained over a wide range of environmental conditions."




As you can see, maximum permitted VTOSS goes up to 62kt (shouldn't it be 63kt?)

Graphic with ANTI-ICE ON goes up to 63kt.

The second Graphic is first segment climb performance, and there is a 70kt VTOSS on it... but if you use 63kt you will find 34°C, that matches with the second segment climb performance and PC2 maximum takeoff and landing gross weight.






​​​​​​​

Last edited by alexandre.vidual; 1st June 2023 at 12:22. Reason: add content
alexandre.vidual is offline  
Reply