Build Story
Hirobo Dauphine 60 Electric Conversion
Chapter 3 of 7
Upper motor bearing support, battery boxes and electronics tray
Feb 1, 2026
I utilized the original engine upper bearing support. I had to slot the mounting holes to allow for pinion to main gear adjustment.
The battery boxes attach to the frame and utilize the existing motor mount. 2-M3 screws attach the box. The boxes are oversized a bit. The sleeves are used to secure the batteries and have a catch retainer. You might notice the holes in the sleeves are the depth of the M3 heads to ensure no rubbing on the batteries and will not pull out once the batteries are inserted.
The electronics tray holds the Axon, receiver and 900 backup receiver.
The ESC mounts to an existing tray Hirobo provided.

Thomas D.





6 Comments
One of my first scale “loves!”
Ha! Funny, had to get some final testing done. Even while I saw everyone having fun at the field” Makes me wonder about myself at times.
Thomas,
Looks great. Nice and smooth with a solid head speed. Video frame rate is a good tool.
B
Thank you Butch.
Your build has motivated me to convert my Dauphin from nitro to electric. That custom motor mount is worth its weight in gold.
It flies better than my nitro engine did. It was always fussy, now a joy to fly. I would be happy to share any CAD files.