JAS-39 GRIPEN RC Plane ✈️ Thrust Vectoring Powerhouse in Action!
18Witness the breathtaking spectacle as I unleash the extreme aerobatic potential of my 8S modified Freewing JAS-39 Gripen RC Plane! With the precision and confidence born from practice, I utilize the thrust vectoring nozzle to execute intricate maneuvers that push the boundaries of flight! 🚀
The Gripen truly comes alive in calm conditions, allowing me to showcase a repertoire of daring moves that would challenge even other high-performance jets. However, it's essential to note that this aircraft presents its own set of challenges. While it excels in certain aspects, such as windless scenarios, I grapple with issues like pitching rate, energy retention, and flight duration when compared to other RC jets in my collection.
An added layer of complexity arises when managing the inertia during spinning maneuvers. The Gripen demands a significant level of control to rein in ongoing maneuvers. Yet, mastering this aspect unlocks a realm of extraordinary possibilities. Once you've conquered its unique characteristics, the Gripen becomes a canvas for incredible aerial artistry!
These were flights 145th to 149th on 'Jana'.
Pilot: RC4ever
Ground video: Luis Ibáñez
Airfield: Club Els Cards
Music: Incubus (Stealth OST)
SPECS (Reflecting my setup):
Model Scale: 1/9th
Wingspan: 882mm
Length: 1613mm
Weight: 2350g (w/o batteries)
TOW: 3400g
*CG: 40mm aft of factory recommended position (molded into the wings)
*Current CG is temporarily more nose heavy.
Material: EPO
Motor: HET-1865kv inrunner motor (added as a mod)
EDF: 9-blade 80mm Jetfan (added as a mod)
ESC: Freewing/Hobbywing Flyfun 150A 8S (added as a mod)
Servos: Stock servos on the canards, ALZRC DS452MG on TV yaw, JX servos on elevons, rudders and TV pitch. (added as a mod)
Landing Gear: Electronic retractable w/ aluminum trailing link struts
Receiver: FrSky X8R (user choice)
Gyro: Hobby Eagle A3S3 (added as a mod)
Canards gyro: GWS PG-03 (added as a mod)
Separate UBEC: Freewing 8A (added as a mod)
Receiver battery: Rhino 2S 610mAh (added as a mod)
Main battery pack:
- HRB 2x 4S 4200mAh 60C
- Turnigy Nanotech 2x 4S 3300mAh 70C
The jet is powered with an upgraded 8S 80mm Jetfan EDF with a 1865kv HET motor. I had to cover the cheater hole with a mosquito net to protect my expensive investment from an otherwise inevitable FOD considering the conditions of my gravel-dirt runway so the jet isn't even displaying it's full thrust potential. This obviously has an effect on performance and current draw. Sadly this setup is too amp hungry and can only get two and a half to three minute flights with throttle management and 3Ah packs. The batteries also struggle to deliver the amps, despite being Panther packs that are pretty heavy/capable. Overall the Jetfan is indeed an improvement in performance over stock setup, but the short resulting flight time kinda defeats the purpose, need to go to higher capacity batteries, and using lower-C packs to keep the weight in check.
More setup details:
https://www.rcgroups.com/forums/showpost.php?p=46318505&postcount=2099
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