dmatt76 Posted March 23, 2022 Posted March 23, 2022 I've found online Apache pilots training and evaluation sheet with Take Off descriptions: a. VMC takeoff from the ground. Select reference points to maintain ground track. With the cyclic in the neutral position, increase the collective until the aircraft becomes "light on the wheels." Maintain heading with the pedals. Continue increasing the collective to obtain approximately 10 percent above hover torque. As the aircraft leaves the ground, apply forward cyclic as required to accelerate through ETL to obtain the desired climb attitude. Maintain ground track and keep the aircraft aligned with takeoff direction below 50 feet; then place the aircraft in trim above 50 feet AGL. When above minimum single-engine airspeed, position the collective to establish the desired rate of climb. b. Normal VMC takeoff from a hover. Select reference points to maintain ground track. Apply forward cyclic to accelerate the aircraft while applying approximately 10 percent torque above hover power with the collective. Perform the rest of the maneuver as for a takeoff from the ground. They describe what you basically see in Apache TO videos, but the names are pretty confusing. TO "from ground" is supposed to be with "neutral cyclic" which in practice begins a hover And "TO from a hover" is done with "forward cyclic", which should start a little roll on the ground before lift. So is there an Army Logic behind it or the names are mixed?
Mpkevin Posted March 23, 2022 Posted March 23, 2022 Take off from ground means you’re lifting from ground into vertical flight. From say a runway. take off from hover is taking off from hover.. once in hover ease aircraft forward to gain air speed and increase power to gain altitude and begin forward flight. not sure how this is confusing?
dmatt76 Posted March 23, 2022 Author Posted March 23, 2022 (edited) Because the quoted descriptions say opposite or don't say everything. a. describes starting a hover b. describes starting from ground, unless you are supposed to go to a hover first, which is not in a description Edited March 23, 2022 by dmatt76
Mpkevin Posted March 23, 2022 Posted March 23, 2022 2 minutes ago, dmatt76 said: Because the quoted descriptions say opposite or don't say everything. a. describes starting a hover b. describes starting from ground, unless you are supposed to go to a hover first, which is not in a description Most helicopter checklist call for a hover check. Even if you are going to conduct a rolling take off. It’s for power setting checks so before taxi /take off you conduct a stabilized hover.
Agrrregat Posted March 23, 2022 Posted March 23, 2022 Check this topic, you can download trk files to see how it looks like, it helped me a lot to understand it today!
dmatt76 Posted March 23, 2022 Author Posted March 23, 2022 (edited) Yes, it shows the "TO from the ground" which is as in description and basically "from a hover" what I see but still, the b. take off is confusing if you start from pushing cyclic forward. The AI Apaches in DCS t.o. with a bit of roll on the ground before lift. Edited March 23, 2022 by dmatt76
kgillers3 Posted March 23, 2022 Posted March 23, 2022 4 minutes ago, dmatt76 said: Yes, it shows the "TO from the ground" which is as in description and basically "from a hover" what I see but still, the b. take off is confusing if you start from pushing cyclic forward. The AI Apaches in DCS t.o. with a bit of roll on the ground before lift. You're leading with too much cyclic. Unless that's your intent to roll a bit.
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