[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

AW: [Paparazzi-devel] Electrical connections in the airborne equipment.

From: Roman Nikitin
Subject: AW: [Paparazzi-devel] Electrical connections in the airborne equipment.
Date: Tue, 13 Jul 2010 14:52:40 +0100

Usually the rudder will be used to fly coordinated turns. "A pilot corrects
for uncoordinated flight with inputs to the rudder. During a coordinated
turn, the ball (in turn indicator) will remain centered." (source Wiki). In
uncoordinated flight (one of the examples for such flight is well known as
slip) more drag is produced, compared to coordinated flight. So you lose the

The rudder inputs usually are done by experienced pilots. The beginner use
the rudder in flight more seldom, usually just for landing to position the
nose of the aircraft along the centre line. 



-----Ursprüngliche Nachricht-----
Von: address@hidden
[mailto:address@hidden Im Auftrag
von antoine drouin
Gesendet: Dienstag, 13. Juli 2010 13:40
An: address@hidden
Betreff: Re: [Paparazzi-devel] Electrical connections in the airborne

what you are trying to fight with the aileron->rudder mixing is adverse yaw



On Tue, Jul 13, 2010 at 2:30 PM, Felix Ruess <address@hidden> wrote:
> Yes, I guess you would want to do that in a more sophisticated way.
> But currently there is no extra yaw control and since we had the
> rudder already connected it is probably better to mix it in a little
> on the roll command than not using it at all.
> Felix
> On Tue, Jul 13, 2010 at 11:44 AM, Maik Höpfel <address@hidden> wrote:
>> I always wonder about that. I can see why mixing it with the roll
>> angle would be helpful (to prevent it to falling "into" the center of
>> curve), but why mix it with ailerons? Shouldn't you use the rudder
>> trough the entire duration of a curve?
>> - Maik
>> 2010/7/13 Felix Ruess <address@hidden>:
>>> I mix the rudder in with the ailerons, probably helps but is not needed.
>>> Felix
>>> On Tue, Jul 13, 2010 at 10:56 AM, Maik Höpfel <address@hidden>
>>>> We just left the rudder servo on our TwinStar disconnected because we
>>>> wary of high currents. I don't use the rudder while flying and neither
>>>> Paparazzi. Note that the rudder is also understood as a failsafe if the
>>>> ailerons stop working, but it's not very hard to land a plane with only
>>>> aileron working too.
>>>> Regards,
>>>> Maik
>>>> Am 13.07.2010 10:08 schrieb "Helge Walle" <address@hidden>:
>>>> Thanks a lot for the useful advice Poine,
>>>> Since everything is already installed I think I'll try the current
setup on
>>>> my TwinstarII where the TWOG powers the servos. I will alter the
>>>> if I detect any of the problems described in this topic. I'll use a
>>>> altitude for the first Auto flights. I am planning a new plane a little
>>>> larger than the TwinstarII. On this I will power the servos separately
>>>> the BEC.
>>>> About the ppm board. My understanding of it is as follows. The
TWOG needs
>>>> the complete pulse train for all servos in one input signal. To get
>>>> I opened my first 35MHz reiceiver and connected to a point where the
>>>> was not "demultiplexed" to each servo output. This is very well
described in
>>>> the wiki. On my new 2.4GHz receiver this not so easily done. I have
>>>> therefore connected each servo output that is in use to the  inputs on
>>>> ppm board with short servo leads soldered directly to the board. The
>>>> then produces the pulse train I collected from the 35MHz receiver. I
>>>> understand there are also some overlap issues between servo signals on
>>>> 2.4GHz receiver, but this is taken care of by the ppm board.
>>>> Regards,
>>>> Helge.
>>>> 2010/7/13 antoine drouin <address@hidden>
>>>>> Hi Helge
>>>>> We know for experience that 4 micro servos on the twog supply, on a
>>>>> not too fast...
>>>> _______________________________________________
>>>> Paparazzi-devel mailing list
>>>> address@hidden
>>>> _______________________________________________
>>>> Paparazzi-devel mailing list
>>>> address@hidden
>>> _______________________________________________
>>> Paparazzi-devel mailing list
>>> address@hidden
>> _______________________________________________
>> Paparazzi-devel mailing list
>> address@hidden
> _______________________________________________
> Paparazzi-devel mailing list
> address@hidden

Paparazzi-devel mailing list

reply via email to

[Prev in Thread] Current Thread [Next in Thread]