UPDATE 11/2/2024:

Replaced old sphere joint design with a "ring" style design. Much less friction than the sphere joint design, at least when using ABS. The new design also requires screw/nut hardware, and larger servos, but the plastic weight reduction makes up for the extra weight. The ring being inside the tube area probably reduces max thrust, but theres no air kickback compared to an outer ring, at least from what I saw in testing. I'll consider testing the outer ring design and also post the files as an option using the same mount section. See parts list for updated parts

Description

Thrust vector nozzle designed to fit on modified Viper 90 (requires cutting off the tail).

I'm flying this with a 6S 5000mah 100C Spektrum Smart lipo all the way in the front. Even so, the model is still fairly tailheavy. This is fine to improve thrust vector related maneuvers, but it makes the model is extremely pitch sensitive! This is a HIGH RISK HIGH REWARD MOD!

Following parts used

AR10360T receiver (for additional Gyro System to assign to thrust vector nozzle channels) 2x Spektrum A4040 https://www.horizonhobby.com/product/a4040-mt-hs-micro-metal-gear-hv-servo/SPMSA4040.html 2x 18" Servo Extension Heavy Duty https://www.horizonhobby.com/product/a3040-sub-micro-digital-high-torque-metal-gear-aircraft-servo/SPMSA3040.html 2x 2-56 12" Threaded Rod. Bent and cut to necessary length https://www.horizonhobby.com/product/threaded-rods-2-56-x-12-6/DUB801.html 2x 2-56 Swivel Ball Link. https://www.horizonhobby.com/product/bulk-swivel-ball-links-2-56/DUB860.html 2x 1.25" lightweight servo arms (optionally use printed ones attached, though they will be weaker than an aluminum option) 4x M3x6mm Button Head Cap screws + M3 nuts (not locking nuts. use regular nuts with loctite as they're lower profile and will impede airflow a bit less)