eRaptor build log
«
- Introduction
- CNC Frames
- Main rotor head
- Custom CNC Fins
- Motor setup
- Electronics Setup
- Batteries
- Test flight
- Final words
Last update: 17 July 2008 (9.42am GMT+800)
Introduction
This write up is going to be the build log of my second eRaptor, which is build from spare parts that i bought during my stay in Hong Kong. A little story of how i got these spare parts. I was in Hong Kong for an exchange program by my University for about 5 months, and being a RC hobbyist, it is natural that I explore the different RC shops and flying fields in Hong Kong. Prior to flying into Hong Kong, i was already a fan of Thundertiger Raptor RC Helicopter series. I had previously owned a Raptor 50 nitro, but sold it away as i didn’t have that much time to spend at the flying field due to my studies. Hence, i bought my first eRaptor, which was actually a E550 stretched to spin 600mm blades. Anyway, when I was in Hong Kong, i realized that Thundertiger raptor helicopters are not popular there. In fact, they are almost phased out as majority of the people there flies Align Trex helicopters. Thus, through the Hong Kong RC forums and by visiting the flying sites, I was able to get hold of a few remaining people with raptor spare parts. I manage to purchase a few hundred dollars with of spare parts from them, for a fraction of the price. With that, together with my trip to Taiwan (another RC shopping spree), i had enough parts (including blades!) to last me six to seven crashes.
Also, i had previously designed and CNC fabricated my own A123 compatible eRaptor frames, which looked pretty queer. Thus, during my 5 months in Hong Kong, I redesigned the frames and needed to try it out. Thus, this eRaptor build will be from scratch, and will only focus on the uniqueness of it compared to the standard TT E550/E620 stock kit.
First of all, here is the listing of the electronics and parts for this build.
eRaptor #2 Setup:
- Thundertiger E550 (stretched to 600mm)
- Custom designed and CNC’d lower G10 A123 compatible frames
- Metal head upgrades from www.xoluxionhobby.com
- Spartan 760 + Futaba BLS-251 tail servo
- Futaba S9255 on cyclics and pitch
- Castle creations HV85 on v3.10 firmware
- Turnigy BEC from www.hobbycity.com
- Scorpion HK4035-500 Motor
- 15S1P A123 LiFe batteries
- 11T pinion (geared for a headspeed of around 2100)
- DSX9 as transmitter, just so that you will know
Spare parts I bought from Hong Kong and Taiwan
