FrankieFlyCRQ
Well-Known Member
Ok so I came across this question, and I understand the question for the most part, and I understand the answer for the most part, but the problem is I dont understand why this is the answer to the question.
The question is from the ASA Instrument Oral Exam Guide Ch.2 page 2-8 question#9 ...for those who have this book,....
#9. When a DP specifies a climb gradient in excess of 200 feet per nm, what significance should this have to the pilot? (AIM 5-2-7)
Answer stated: If an aircraft may turn in any direction from a runway, and remain clear of obstacles, that runway passes what is called diverse departure criteria and no ODP will be published. However, if an obstacle penetrates what is called the 40:1 slope obstacle identification surface, than the procedure designer chooses whether to:
a. Establish a steeper than normal climb gradient;
b. Establish a steeper than normal climb rate gradient with an alternative that increases takeoff minima to allow the pilot to visually remain clear of the obstacle(s); or
c. Design and publish a specific departure route; or
d. A combination or all of the above.
***OK SOOOO what the heck does any of that have to do with the question, what am I missing here??? **** My understanding of the answer is, if the climb gradient is in excess of 200 fpnm , and the surrounding area from the runway is clear of obstructions in all directions, than the ODP does not apply to the pilot, nor does he have to fly it??? Any explanation of this answer will be awesome, thanks!
The question is from the ASA Instrument Oral Exam Guide Ch.2 page 2-8 question#9 ...for those who have this book,....
#9. When a DP specifies a climb gradient in excess of 200 feet per nm, what significance should this have to the pilot? (AIM 5-2-7)
Answer stated: If an aircraft may turn in any direction from a runway, and remain clear of obstacles, that runway passes what is called diverse departure criteria and no ODP will be published. However, if an obstacle penetrates what is called the 40:1 slope obstacle identification surface, than the procedure designer chooses whether to:
a. Establish a steeper than normal climb gradient;
b. Establish a steeper than normal climb rate gradient with an alternative that increases takeoff minima to allow the pilot to visually remain clear of the obstacle(s); or
c. Design and publish a specific departure route; or
d. A combination or all of the above.
***OK SOOOO what the heck does any of that have to do with the question, what am I missing here??? **** My understanding of the answer is, if the climb gradient is in excess of 200 fpnm , and the surrounding area from the runway is clear of obstructions in all directions, than the ODP does not apply to the pilot, nor does he have to fly it??? Any explanation of this answer will be awesome, thanks!