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What is the difference between Option 1 and Option 2 with Micro VG Kits that include a Gross Weight Increase (GWI)?

If your kit includes a Gross Weight Increase (GWI), or change in operation airspeeds, there are two options for installation. 

OPTION 1: No Change in Performance

The vortex generators are installed on the aircraft, but the airspeed indicator is not changed, and the Pilot's Operation Handbook is not changed to reflect the improvement in performance.

OPTION 2: Change in Performance

The vortex generators are installed on the aircraft, the airspeed indicator is changed, and the Pilot's Operation Handbook is changed to reflect the improvement in performance.

Option #1 allows the owner to continue to fly the airplane even if the airspeed indicator could not be upgraded during the vortex generator installation. An Option #1 installation may be upgraded to an Option #2 installation at any time.

Installing Micro VGs on landing light lens

Cessna 182 Wing with Micro VGs

Cessna 182 Wing with Micro VGs

Micro Vortex Generator(s) can be installed directly on the landing light lens with the provided Loctite® 330™ Depend® Adhesive. If it falls on the landing light lens frame, the Vortex Generator(s) may be moved LATERALLY the shortest distance necessary to clear the obstacle. The foot of the vortex generator may be trimmed, or shimmed as required as long as the blade remains intact.

What do I do if one or more Micro VGs ends up right on top of a rivet?

Look in the “note” section of the location drawing found in the back of the installation instructions for the official authorization to move the VG. You may move the Vortex Generator LATERALLY the shortest distance necessary to clear small obstacles, or you may file the foot of the vortex generator (leaving the blade intact) to fit over the rivet head.

What do I do if the airspeed indicator dial face you've sent isn't compatible with the airspeed indicator on my Cessna twin?

Unfortunately, there are so many different airspeed indicators out there we can't stock dial faces for all possible configurations. We include a dial face only for the Self Compensating True Airspeed Indicator. If you have a standard airspeed indicator or a copilot's airspeed indicator, please remove the instrument from the aircraft and have an instrument shop mark your current dial face using the dial face drawing contained in the Option#2 envelope. The aircraft may still be flown if it is in Option #1 configuration.