I also made a modification / repair to the Stab structure on my JL Hawk, Im in no way trying to discredit Jet Legend as a manfacturer, I have first hand experience in an Stab failure on a Jet Legend Hawk, but the situation was remedied very quickly, Im literally just posting to show the modification we made and the improvement we thought it would have made to a great flying airframe. I believe, although the Elevator Linkage is a very robust and impressively made unit, the Universal Joints that transfer the Servo drive directly into the Tail Plane Clamps are the main weakness point on this model. Even after Thread Locking the M3 Grub Screw into the Universal Joint, it was aparent after around 10 - 11 flights, this had worked loose allowing a pitch change on the Tail Plane eventually leading to flutter.

In order to rectify this, we removed the M3 Grub Screw and removed the Universal Joint pins, then ground Flats on to each of the pins and tapping the opposing the side of the Universal Joint to allow for two M3 Steel Cap Head Bolts to be securely fixed into the linkage on both of the Joints, we found this really improved the integrity of the linkage under load.

Even though we believed the problem would have been solved by the small "fix" / modification" above, literally for peace of mind, we decided to modify the internal Stab Structure also, this was done in three stages.

1. We drilled a series of small (1mm) holes in the root of each Stab in a 40mm vercinity around the Stab Securing Pin and dripped Thin Cyano through each hole in an attempt to stiffen up the woodwork Jet Legend had used in the internal structure.

2. We then made a box around each Stab (very similar to the process used when making a Fibre Glass Cast / Mold), placed each Stab in a thin Polythene Bag and poured casting plaster into each of the Box Sections we had made, thus giving us a Strong Cast of each Stab component. Then dremmelled two small holes in the root of each stab and poured Polyeurethane Foam into the stucture before sealing each hole temporarily to cut the oxygen supply to the chemical, enabling the foam to set with a solid crusty skin throughout the structure.

3. Mass Balancing both Horizontal Stabilers around the Neutral Point / MAC position, when held within the Jet Legend Linkage, ensuring both Stabs were of the same weight aswell to avoid any excess load on each Stab.

Although this was never tested, (Believe it or not, through no fault of the model, the Turbine Flamed Out on the Maiden Take Off, resulting in a damaged Wing), I think this hopefully would have been a successful fix. Like I mentioned earlier, I am in no way looking to discredit any manufacturer, I honestly do believe that any manufacturer can have failures relating to Structure and Build.

Hope this helps anyone who is interested.