The Goblin Black Thunder is the newest machine in SAB´s portfolio. Together with the Goblin Black Nitro it was presented on the Rotor Live in March 2016. It is a new size, a 650 machine and has some new features, compared to the classic 700C. First thing is the aggressive speed look. The colour scheme is similar to the all beloved yellow carbon scheme, but this time with a bit of red to even enhance visibility more. The canopy and the boom are even more lightweight than before and together with improved chassis, smaller rotor head and some tiny changes the heli is uuuuper lightweight. So for me this was the reason to pre-order it directly :) And now the waiting is over!!!
As usual a Goblin looks extremely sleek and well organized when you take off the canopy. No wires hanging around, everything is well placed.
SAB has a lot of tiny ideas and pre-drilled holes and slots and show you in the manual how to wire the heli correctly.
A heli is only perfect if you dont need to be ashamed to take the canopy off. :)
The motor is a Kontronik Pyro 700-52. SAB recommends a motor with 560KV (like the Pyro 750) to reach the (mostly wanted) higher rpm.
As I like more the lower than the higher rpm I decided to use a Pyro 700 which I had left. This motor is truly really lightweight but still has lots of power. I guess this littlle guy will be enough powerful for me ;)
The ESC is a Kontronik JivePro 120. This new HV ESC is capable of 120A current and has a super soft spool up capability. Also its regulation is unbeatable for low rpm flights.
The esc is completely programmable over a PC software and can also be linked with a bluetooth module. I connected a TelMe for Graupner so I can read all data like current, used capacity, temperature, rpm directly from my transmitter and even get warnings!
For the swashplate I chose the Graupner HBS 860 BB MG servos. These are fully HV capable (till 8.4V) and work in a big variety of my machines.
They are good in price but still have very good specs. I use them since about 4 years and cannot tell anything bad about them.
The tail servo is a Graupner HBS 770 BB MG.
Also this servo is fully HV capable (8.4V) and I fly it in many machines of different sizes.
Also with this servo I am fully satisfied
The FBL is a Graupner Gr-18. This little box combines a receiver with a FBL system. This does not only save a lot of wiring, but as I use a Graupner tx I can adjust it completely over my transmitter via telemetry.
This means that when doing a setup flight I dont need to remove the canopy, I just open the menu in my tx, type new settings, spool up and try again. Very easy and convenient!
An additional highlight are the new SAB Thunderbolt blades. They were presented together with the new helis on Rotor Live and have a complete different flight feeling than before.
I will try to switch all my other machines also to these new blades so I can tell more about the difference!
Which batteries you use is always a personal decision. SAB recommends lipos between 4000-5000mah. The size and C.-rate of the lipos do not only influence your flight time but also your end-weight.
Right now I use Optipower 12s 5000mah 50c packs but I feel that they are a bit too heavy. In the next weeks I will receive 2x 12s 4000mah stickpacks from Optipower to try, then I can tell you more about it.
Helicopter: SAB Goblin Black Thunder
Motor: Kontronik Pyro 700-52
ESC: Kontronik Jive Pro 120 (HV)
Swash Servos: Graupner HBS 860 BB MG (HV)
Tail Servo: Graupner HBS 770 BB MG (HV)
Battery: Optipower 12s 5000mAh 50C
FBL System: Graupner GR-18
Blades: SAB Thunderbolt blades (included in the kit): 650mm & 105mm
Transmitter: Graupner mz-24