ferranrosello
Member
- Joined
- Nov 14, 2005
- Messages
- 398
- Location
- Madrid
- Aircraft
- Ela 07
- Total Flight Time
- FW: 600, HELOS: 3550, GYROS: 3020
Than you for your explanation Jean C.
The assumption you are doing about getting airborne at 58 km/h seems reasonable. However my point is what if I don´t get airborne until being very closed to 75 km/h. Then the induced drag during the take off roll would be weaker and would use less than 50 meters to reach 75 km/h.
This is a variable that depends very much of the take technic used.
There are no discussions about this question. The safest Take off technique is to keep a moderate nose up attitude in the take off roll. In my experience, the lower the attitude the better the take off performance. To get airborne at 58 km/h implies a moderate nose up attitude...
PS: Totally agree about the head wind point. And if you are flying at high density altitude Vx will be faster that what is stated in the Manual... But this is another question, our machines flying manuals are very poor, consequently you need to solve the lack of information with knowledge.
The assumption you are doing about getting airborne at 58 km/h seems reasonable. However my point is what if I don´t get airborne until being very closed to 75 km/h. Then the induced drag during the take off roll would be weaker and would use less than 50 meters to reach 75 km/h.
This is a variable that depends very much of the take technic used.
There are no discussions about this question. The safest Take off technique is to keep a moderate nose up attitude in the take off roll. In my experience, the lower the attitude the better the take off performance. To get airborne at 58 km/h implies a moderate nose up attitude...
PS: Totally agree about the head wind point. And if you are flying at high density altitude Vx will be faster that what is stated in the Manual... But this is another question, our machines flying manuals are very poor, consequently you need to solve the lack of information with knowledge.
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