Other considerations are the forces brought on by the length of the lever arm, (horns and servo arms). Think of an air-load of a control surface pushing back against the servo when a short control horn is used. When a longer control horn (lever) is used at the surface, the servo is given mechanical advantage over that force but at a sacrifice of the amount of throw. Yes, I've stalled a few servos over the years.
When you move the pushrod closer to the control surface, you're inviting the surface to flutter. Shortening the control horn gives the surface more leverage over the pushrod and increases the forces on it. When I need more throw, I use a longer servo arm or I increase the travel in my Spektrum transmitter to 125%. If I have too much control surface throw, I make sure the pushrod is in the outer hole on the control horn and then move the pushrod in on the servo arm. I try to avoid setting the servo travel in my transmitter to less than 100%. My dual rates are typically between 75% (low rates) and 100% (high rates). On 3D planes with large control surfaces, my dual rates will be between 60% (low rates) and 125% (3D rates).
Tim I have a question about remote ID I really would appreciate an answer I was wondering how do I connect a remote ID module to a DJI Phantom Advanced professional when there's no power available on the drone? Do I connect it to the transmitter? Thank you very much for your consideration and your time I really would like to have an answer Mike
Mike: It will depend on the remote ID module. The module needs power, obviously. For the Spektrum SkyID you can plug it into an open channel on the receiver if you have one. I think the BATT plug will work as well. Or, you can use a stand-along battery for the RID module.The module is in the drone, so no way to use the transmitter. Spektrum would have further details, in this case. Tim
Very good info to know. Thanks.
😊👍🏻 Tim
Other considerations are the forces brought on by the length of the lever arm, (horns and servo arms). Think of an air-load of a control surface pushing back against the servo when a short control horn is used. When a longer control horn (lever) is used at the surface, the servo is given mechanical advantage over that force but at a sacrifice of the amount of throw. Yes, I've stalled a few servos over the years.
Excellent points, thanks! Tim
such a great video - so helpful - thank you for sharing
Thanks!
excellent training aid
😊👍🏻❄️ Tim
Very informative. Glad you sorted your audio. 😂
MV: Life is good! Thanks for checking in. 😁 Tim
When you move the pushrod closer to the control surface, you're inviting the surface to flutter. Shortening the control horn gives the surface more leverage over the pushrod and increases the forces on it. When I need more throw, I use a longer servo arm or I increase the travel in my Spektrum transmitter to 125%. If I have too much control surface throw, I make sure the pushrod is in the outer hole on the control horn and then move the pushrod in on the servo arm. I try to avoid setting the servo travel in my transmitter to less than 100%. My dual rates are typically between 75% (low rates) and 100% (high rates). On 3D planes with large control surfaces, my dual rates will be between 60% (low rates) and 125% (3D rates).
Great points, thanks! Tim
Tim, not really pertinent to this video, but, I just received my SKYID module from Spectrum. Will install it in my "beater" airplane for flight tests.
Ted: Very useful update, thanks for sharing! Tim
Tim I have a question about remote ID I really would appreciate an answer I was wondering how do I connect a remote ID module to a DJI Phantom Advanced professional when there's no power available on the drone? Do I connect it to the transmitter? Thank you very much for your consideration and your time I really would like to have an answer Mike
Mike: It will depend on the remote ID module. The module needs power, obviously. For the Spektrum SkyID you can plug it into an open channel on the receiver if you have one. I think the BATT plug will work as well. Or, you can use a stand-along battery for the RID module.The module is in the drone, so no way to use the transmitter. Spektrum would have further details, in this case. Tim