I recently acquired a Precision Aerobatics Katana MX which was in need of some repairs.
It had been previously repaired but I needed to make some changes to these. e.g. The elevator servo had been replaced with an analogue servo (the stock servos are all digital).
Here is a list of the repairs so far:
- Battery connectors
- The proprietary battery connector was repalced with 2 XT60s wired so that 2 X 3S 2200mAH LiPos could be connected in series.
- Battery mount
- Velcro and battery straps added
- Receiver
- There was no receiver so I added a Radiomaster DBR4 (Gemini Xrossbabd) and 10 channel CRSF to PWM converter (with vario and voltage sensor). This also required the addition of servo extension leads for the aileron servos.
- Elevator servo
- The analogue elevator servo was replaced with a digital servo HiTec D85MG programable digital metal gear servo. The original stock servos are HiTec HS-5085MG. The D85MG is a direct replacement.
- Covering and trim
- Some pieces of covering and trim that were coming away were secured with ca glue.
- A piece of covering had been removed from the fuselage. This is to be replaced.
- Wing locator rod
- one of the 4mm carbon fibre rods used to locate the starboard wing was missing. A new piece of 4mm carbon rod was epoxied into place.