Applicable Models: 421C

International Approvals


STC: **CAA #23917
Dated: 1993-02-05
Approved Models: 421C
STC: **LBA Germany #0690/2032b
Dated: 1996-02-01
Approved Models: 421C

**These specific models of aircraft had approvals prior to September 28, 2003 (Grandfathered). Any STC approved or validated by any member state before the establishment of EASA is deemed to be approved under Regulation 1702/2003 Article 2a. This covers all previous approvals from minor changes to major changes, STCs and complete aircraft, both certifications and validations with the exception of products of the former Soviet Union.

FAA Form 8130-3, Export Airworthiness Approval Tag, can be provided for an additional charge of $100 if required by your Aviation Authority. Please specify when ordering.

Cessna 421C

MICRO Vortex Generator Kit for the Cessna 421C is FAA STC approved and ready for installation on your airplane. The Micro VG Kit includes the STC, VGs, installation tools, computer cut templates, detailed illustrated drawings and instructions, and Loctite® 330™ Depend® Adhesive for installing the vortex generators on your airplane.

      Improvement with
  Factory Micro Micro VGs
Vmca 80 KIAS 73 KIAS 7 kts
Vs 86 KIAS 79 KIAS 7 kts
Vso 77 KIAS 70.5 KIAS 6.5 kts
Vref 100 KIAS 91.5 KIAS 8.5 kts
Maximum ramp weight 7500 lbs 7629 lbs (New!) 129 lbs
Maximum take off weight 7450 lbs 7579 lbs (New!) 129 lbs

Testimonial / Endorsement

As one twin Cessna owner said, "The Micro VGs do everything you said they would do and more -- the tail of my airplane thinks it's four feet taller and the rudder thinks it's two feet longer!"