Here is an update on the approval proceedure through the Laa for the fitting of VG

 

1) At the LAAs request, John Brownlow prepared a test schedule that was accepted for the J400 and G-SAZY (owner Stuart Pink)

was offered as the "Test AIrcraft" and was re-located to Cambridge for testing.

2) John duly undertook a series of baseline flights without VGS to establish the aircrafts "clean" performance.

3) I then installed a full set of Stolspeed VGs to the wing and tailplane (underside) and duly carried out the" first flight" with John.

( I think he wanted me on-board to show I had faith in the units and was happy to put the aircraft through its paces)

Well, nothing fell off, and after some extreme "stalls" roll rate checks ,climbs,etc we returned to Cambridge

4) Over the next 4 to 6 weeks John and Stuart carried out the same schedule as the Pre-VG flights to evaluate any improvements.

5) The final report has now been accepted by the LAA showing an improvement in "roll-rate" a reduction in the "stall-speed" a general

overall "flight feel" improvement and "crispness" of control.

6) The LAA are now prepairing the documentation to accept the Stolspeed VGs as a Mod to the J400.

7) I am now starting the ball rolling to allow the ULs to have these fitted.

8) This approval has been costly however , Johns charges,Airfield charges ,Fuel charges Hangarage,Vgs etc, and without Stuarts contribution

would have cost a lot more.Many thanks Stuart.

9) I will supply these VGs to pilots once the LAA paperwork is in place along with fitting instructions and any information required.I will also fit them

If you want and assist with your inspection paperwork.

When contacting the LAA for this approval, speak to Andy Draper who has seen this through with Francis and is "up to speed" with this.

It has took some time to get here but it will be worth it if you fit them.

 

Regards Eric Bentley, Mobile 07817-874279.