Xicoy Electronic C.G. Balancer
#302
Join Date: Jun 2002
Location: Arenys de Munt- BARCELONA, SPAIN
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The issue on some Iphones affecting the screen of sensor calibration has been located to the type of keyboard that some Apple devices display as default. The new version of the App is ready and tested, just need now the approval of the Applestore to published, we expect that will be done today, but not sure, now it is in hands of Apple and sometimes the approval process take a bit longer.
Gaspar
Gaspar
#305
Join Date: Jul 2016
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#306
Join Date: Apr 2014
Location: Krasnodar, RUSSIAN FEDERATION
Posts: 125
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Hi Friends,
I ask to prompt how it is correct to measure (in what position: free or sink) distance from a shaft of wheels (for example the main rack) to the CG?
All the matter is that the distance considerably changes (about 30 mm on my SM Hawk) when sinking a rack of wheels.
Sorry for fast pictures
Kind regards,
Sergey
I ask to prompt how it is correct to measure (in what position: free or sink) distance from a shaft of wheels (for example the main rack) to the CG?
All the matter is that the distance considerably changes (about 30 mm on my SM Hawk) when sinking a rack of wheels.
Sorry for fast pictures
Kind regards,
Sergey
Last edited by helifox; 10-21-2016 at 04:37 AM.
#307
My Feedback: (1)
Join Date: Feb 2002
Location: private, UNITED KINGDOM
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Hi Friends,
I ask to prompt how it is correct to measure (in what position: free or sink) distance from a shaft of wheels (for example the main rack) to the CG?
All the matter is that the distance considerably changes (about 30 mm on my SM Hawk) when sinking a rack of wheels.
Sorry for fast pictures
Kind regards,
Sergey
I ask to prompt how it is correct to measure (in what position: free or sink) distance from a shaft of wheels (for example the main rack) to the CG?
All the matter is that the distance considerably changes (about 30 mm on my SM Hawk) when sinking a rack of wheels.
Sorry for fast pictures
Kind regards,
Sergey
#309
Join Date: Apr 2014
Location: Krasnodar, RUSSIAN FEDERATION
Posts: 125
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Of course I'm going to measure from center of the pads, but with sink gears (shock-absorber) the distance is about 30mm more if fix gear in free position and put to the pads. What about I worried will that affect to CG?
Example:
distance from main pads to CG -100mm (wheels absorbed) and for right CG needs to add 50gr- right balanced aircraft.
with wheel fixed in free position the distance - 70mm, and it's required to add less (about 30gr) weight- rear balanced aircraft at the end.
Or these will not to affect to balance critically?
Kind regards,
Sergey
#310
Join Date: Oct 2006
Location: ontario,
CA
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The distance measured should be what ever it is with the plane sitting on the pads as posted above..so if the gear is only only half way compressed that is the correct distance. But also make sure the plane is sitting in a in flight level attitude. not tail low or nose low. if it does you need to shim the plane to level and reset the tare on the scales.
#312
I just used the angle sensors on my Xicoy unit for he first time last night.....was using them to fine tune the flap settings on my F14. Wow! What a fantastic unit this is. I can't imagine anyone doing jet modelling without one. Have used my unit previously to do C of G settings and thought it was great for that too.
Thanks for making such a great product Gaspar!
Thanks for making such a great product Gaspar!
#315
My Feedback: (34)
Hey guys, My boy just got one of these Xicoy CG balancers.
Confused:
When measuring a tail dragger, ie P40 - P41 war bird
First measurement is from the nose cone to the front wheel axles
2nd measurement is from the front wheel axles to the cg on the wing
3rd is from the front wheel axles to the rear tail wheel axle
is this correct?
Confused:
When measuring a tail dragger, ie P40 - P41 war bird
First measurement is from the nose cone to the front wheel axles
2nd measurement is from the front wheel axles to the cg on the wing
3rd is from the front wheel axles to the rear tail wheel axle
is this correct?
#316
My Feedback: (4)
Have a question about the Xicoy Balancer, I just bought the unit and downloaded the app and was playing with the interface on my ipad since I have the bluetooth version. My question is I added a test plane, but I don't see how to delete an airplane after it haas been added. Any help would be greatly appreciated.
Patrick
Patrick
Last edited by sirrom; 01-25-2017 at 07:46 AM.
#317
Join Date: Apr 2014
Location: Krasnodar, RUSSIAN FEDERATION
Posts: 125
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#318
My Feedback: (4)
Patrick
#320
My Feedback: (4)
I just downloaded the latest version of your software for my android phone (version 1.0.0) as the software will not connect to bluetooth on my IPad not sure why, but on my android device I can not delete or change the name of the model. Also can you please clarify something for me..on a bicycle plane (tail dragger):
Distance Front-Mains: = The measurement of the Distance from Main gear to tail wheel
Distance Mains-CG: = The measurement of the Distance from Mains to desired CG
Distance to Mains to weight placement: = The measurement of the distance from the absolute front of plane (to include spinner) to the tail wheel.
Please let me know if these are the correct measuring points for a taildragger.
Thanks,
Patrick
Last edited by sirrom; 01-29-2017 at 05:30 PM.
#321
My Feedback: (7)
Gaspar,
I just downloaded the latest version of your software for my android phone (version 1.0.0) as the software will not connect to bluetooth on my IPad not sure why, but on my android device I can not delete or change the name of the model. Also can you please clarify something for me..on a bicycle plane (tail dragger):
Distance Front-Mains: = The measurement of the Distance from Main gear to tail wheel
Distance Mains-CG: = The measurement of the Distance from Mains to desired CG
Distance to Mains to weight placement: = The measurement of the distance from the absolute front of plane (to include spinner) to the tail wheel.
Please let me know if these are the correct measuring points for a taildragger.
Thanks,
Patrick
I just downloaded the latest version of your software for my android phone (version 1.0.0) as the software will not connect to bluetooth on my IPad not sure why, but on my android device I can not delete or change the name of the model. Also can you please clarify something for me..on a bicycle plane (tail dragger):
Distance Front-Mains: = The measurement of the Distance from Main gear to tail wheel
Distance Mains-CG: = The measurement of the Distance from Mains to desired CG
Distance to Mains to weight placement: = The measurement of the distance from the absolute front of plane (to include spinner) to the tail wheel.
Please let me know if these are the correct measuring points for a taildragger.
Thanks,
Patrick
Of course if you are planning to add a weighted prop washer or something like that, then the distance from the mains to that location is the correct one to use.
Last edited by wfield0455; 01-30-2017 at 06:02 AM.
#322
Join Date: Jun 2002
Location: Arenys de Munt- BARCELONA, SPAIN
Posts: 425
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Hello Patrick,
Latest version is 1.0.6. To change the name of the model, you should click in the orange "Model" label. A short click allow to change the name, a long click allow to delete the model, BUT only if there are more than one model defined.
You are correct in the two first distances, but not on the 3th one. In the case you have a defined location to place the lead (say that you want to screw the lead in the firewall), then you should measure the distance from the mains (center of the scales) to the firewall. The CG Meter will calculate the exact weight of lead needed at this point to have the plane in balance. If the plane is tail heavy so the location of the lead will be behind the CG, then you should enter distance in negative numbers.
In the case you are planning the installation of the ancillaries in the model, moving bateries around, etc, to look to the best weight distribution to reduce the lead to a minimum, then it is not necessary to enter this distance, the plane will be in balance when the reading be zero.
Gaspar
Latest version is 1.0.6. To change the name of the model, you should click in the orange "Model" label. A short click allow to change the name, a long click allow to delete the model, BUT only if there are more than one model defined.
You are correct in the two first distances, but not on the 3th one. In the case you have a defined location to place the lead (say that you want to screw the lead in the firewall), then you should measure the distance from the mains (center of the scales) to the firewall. The CG Meter will calculate the exact weight of lead needed at this point to have the plane in balance. If the plane is tail heavy so the location of the lead will be behind the CG, then you should enter distance in negative numbers.
In the case you are planning the installation of the ancillaries in the model, moving bateries around, etc, to look to the best weight distribution to reduce the lead to a minimum, then it is not necessary to enter this distance, the plane will be in balance when the reading be zero.
Gaspar
#323
My Feedback: (4)
Thanks for the help.
Edit: Wanted to edit to let you know why I was having such a hard time figuring this out. If you look at the default model that comes with the software for a taildragger it shows the distance from the mains to where you want the weight added is 1200 mm which is 47inches. So since the distance from mains to tail was 1000mm and the distance from mains to nose was 1200 I assumed this distance for the third measurement was the total length of aircraft. I was kind of looking at the default as kind of a guide to use.
Patrick
Edit: Wanted to edit to let you know why I was having such a hard time figuring this out. If you look at the default model that comes with the software for a taildragger it shows the distance from the mains to where you want the weight added is 1200 mm which is 47inches. So since the distance from mains to tail was 1000mm and the distance from mains to nose was 1200 I assumed this distance for the third measurement was the total length of aircraft. I was kind of looking at the default as kind of a guide to use.
Patrick
Last edited by sirrom; 01-30-2017 at 05:13 PM.
#325
My Feedback: (34)
This is serous stuff, and a simple picture with a drawing will help all. I have watched YouTube, read the manual, and this forum and they all seem to say different things when it comes to tail draggers, IE P51, p40, Cub
Distance Front-Mains: = The measurement of the Distance from Main gear to tail wheel? Is this true? vs what I read was from the spinner to the front landing gear????
Distance Mains-CG: = The measurement of the Distance from Mains to desired CG, Yes easy to understand
Distance to Mains to weight placement: = The measurement of the distance from the front main landing gear to were you want to put the weight. ????
I have talked to 2 people who have given up on Xicoy CG balancer because they are just confused about these 3 very important measurements, can we get a are you smarter than a 3rd grader picture for each type, Jet and War bird !!!
Thanks
Distance Front-Mains: = The measurement of the Distance from Main gear to tail wheel? Is this true? vs what I read was from the spinner to the front landing gear????
Distance Mains-CG: = The measurement of the Distance from Mains to desired CG, Yes easy to understand
Distance to Mains to weight placement: = The measurement of the distance from the front main landing gear to were you want to put the weight. ????
I have talked to 2 people who have given up on Xicoy CG balancer because they are just confused about these 3 very important measurements, can we get a are you smarter than a 3rd grader picture for each type, Jet and War bird !!!
Thanks