JimLindner's blog - RC Groups
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Posted by JimLindner | Nov 02, 2017 @ 10:39 AM | 2,456 Views
In Mod 1 I added Retracts, LEDís, Invasion Stripes and a few other details for those that missed it the link is P47X Mod1 Build. I decided what the heck, why should the Giant RC guys have all the fun so I decided to attempt to also have sound in my UMX P47X.

I used the Benedini TBS-Mini Sound Unit and a PUI transducer rather than a speaker. Itís a great little unit and Thomas did a great job designing it.

Originally I mounted the transducer (speaker) to the top fuselage with the sound unit over it. This converts the upper fuselage into one big speaker. It is simply glued to upper fuselage which now acts as a speaker.

Iíve since moved the transducer back about an inch directly under the Ninja Pilot for better CG. I was getting quite a few nose overís on landing and this shifts the cg back a bit as shown below. This also gives a better CG point and compensates for no longer allowing the battery to go as far aft as it used to since the sound unit now blocks it.

The sound card is mounted to a shelf on the upper fuselage next to the transducer (originally below it). The red connector on the left is used to program the unit and the pins on the right are inputs/outputs; throttle in, power, ground, ledís etc.

When I moved the transducer aft I also raised the sound unit shelf towards the pilot for more clearance above the receiver and this is the latest location of the sound unit with the transducer aft of it.

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Posted by JimLindner | Oct 15, 2017 @ 03:59 PM | 1,192 Views
I made the bush wheels, added blinking belly light, changed the registration number (true CC #) and checkered the tail (a CC paint option).