MSH Protos Swash Plate setup and leveling using TNN tool

How to setup and level a swash plate on an MSH Protos. Using a TNN Engineering Leveling tool to setup the swash plate so that there are no interactions through the entire pitch range.

This leveling tool is made specifically for the Protos so that if fits accurately on the swash plate and not on the plastic links. The tool has also been designed so that you can set the correct swash plate position for zero pitch.

www.arkinnovations.com has them for the Protos and Trex500. http://www.arkinnovations.com/shop/index.php?main_page=product_info&cPath... The tool is 32.2mm high

Category:

Howto & Style

Tags:

• MSH
• Protos
• Helicopter
• Swashplate
• Swash
• TNN
• Engineering
• Tool
• Setup
• Leveling
• A123

[tin175]

No, you do not adjust the trim to level the swash. You will need a computer programmable radio that allows you to adjust the total servo travel for each channel. It is called ATV or travel adjust. You are adjusting where the servo stops at the end of its travel.

[Rob112273]

I stille have troubles with low and high position in idle up. At midstick leveling is fine, but when in low and high position I still have a cap. Now you say I have to adjust my end-points, but what do you mean by end-points? the traveladjust?

[tin175]

You need to adjust the servo travel endpoints to get the swash level at the low and high positions. The endpoint adjustment is also called travel adjustment or ATV. This adjustment changes the total travel of the servos in each direction. The default setting for these are usually +100,-100. You need to adjust the aileron, elevator and pitch channels accordingly to get the swash level at the high and low positions.

[vanepico]

Do they really need to be acurate to the millimeter?

[tin175]

I recommend that you have the best mechanical setup you can achieve. A millimeter is quite a lot. Adjusting a trim on your radio will move the swash less than a millimeter and this is enough cause your heli to drift.

[TheDrH20]

Great info helicopter friend.

[Docs850]

Very Helpful info cheers broke,

[SpankTheYanksAgain]

Great vid, many thanks!

[pennkhmer]

What should I do if my elevator servo motor seems to have more stroke than the to servos? My servo horns and linkages are level and equal length. Please help, thank you

[Trainboy64]

Great video.. very well explained and very clear.. thanks for posting.

[virtual812]

Brilliant vid, well explained, and very clear picture, well recorded.

[PHeMoX]

@twaciis2 Yes, don't rely on end points to get a swash plate level at high and low either. Instead use sub trims for that, after having a (very very near) perfect mechanical setup at mid stick with the correct swash plate mix settings. Newbies often confuse end points with setting the servo's neutral position through transmitter programming and many servos really don't like it when they're wearing out more in one direction than the other.

Apart from that 100% ATV will always give best response.

[trexinvert]

Just for newbies. The leveling of the swashplate at "flat blade=50% tx pitch curve must be done by "adjusting linkages" only!!! Do not touch sub trim. Sub trim is only adjusted to set servo horn at 90 degrees. If you adjust subtrim, then you will screw up the symmetry of the servo travel. Hope this makes sense.

[imawicked]

Sorry I dont understand about end point could you pls explain how to set it and does it mean i just adjust the trim ??? im pretty new with set up balance.

cheers