View Single Post
Old Aug 17, 2010, 03:19 AM
CaptJac is online now
Find More Posts by CaptJac
Rotor Controller
CaptJac's Avatar
Aachen Germany
Joined Dec 2007
2,398 Posts
About 60 posts back (#42) - and responding to a post from EricJ about how many small tips he was able to learn in just an hour that he would never thought of - a question was asked if was possible to share some of those many tips? Still in the testing phase - my students being the test specimens - I needed more time in the lab before responding. Since that time (about 50 hours) a few have survived - students and teacher and tips. Note - these are training tips for learning how to hover and forward flight. NOT to be confused with 3D - although some might apply.

1. When lifting off the ground slowly (scale flying) the aircraft will have a natural tendency to roll to the left. Instead of correcting for the roll after it leaves the ground - apply and hold a very small amount of right aileron before taking off - neutralize the cyclic stick immediately after takeoff. Timing and amount is critical and takes practice - but once attained it eliminates the chasing exercise in trying to stabilize and you will have a stable hover from the get-go.

2. Hovering is all about stabilizing. Too much stick movement and you are all over the place. Too little stick movement and you are all over the place. So how much is the right amount and how do you find it? If you think about the marble on a piece of glass analogy it provides a clue. If the marble is already in the center - large or small movements will keep it there as long as your movements are symmetrical and your timing is exact. The more exact your timing the less movement is necessary.

3. Read number 2 again because it is the KEY to learning how to hover. The more precise your timing the more stable your hover. So now we got that behind us - how do you find the right timing? We all know the answer to that one - PRACTICE. But practice what? While you are practicing - notice the oscillation effect when correcting. Starts rolling to the right and you give it left aileron. Starts rolling to the left and you give it right aileron. Back and forth until it swinging like a pendulum. New scenario - starts rolling right and you give it left aileron but this time give it a very slight nudge of right aileron BEFORE it starts rolling left - in other words predicting what it will do before it does it and adding a very slight amount of correction.

4. Doesn't matter if you thumb or pinch your sticks - whatever is comfortable - try to keep your cyclic stick centered and make very fine movements by nudging instead of holding - but be prepared to hold if it starts moving too fast.

5. Use the tail boom as a horizontal reference by keeping it at a slight angle to you. In the sim world this helps - in the real world it REALLY helps.

6. Use the throttle-hold switch instead of slamming the throttle down. Three reasons. 1st -slamming the throttle down will also slam your heli into the ground. The more negative the pitch - the harder the slam. 2nd - crashes happen faster than we can think -immediate switching the throttle-hold to on can protect the motor and ESC from burning up. 3rd - slamming the throttle down doesn't turn the engine off in idle-up mode (3D) - it is VERY difficult to reprogram your reflexes to hit the throttle-hold when you are conditioned to throttle-down-slam.

captJac, author
Taking Off With RC Helicopters - FAQ's 101
CaptJac is online now Find More Posts by CaptJac
RCG Plus Member
Last edited by CaptJac; Aug 17, 2010 at 10:23 AM.
Reply With Quote