Enjoy the added benefits with your
spoiler equipped Cessna 400
Series airplane!
When it’s time to come down you’ll be glad you have PowerPac Spoilers
installed on your Cessna 400 series aircraft.
With PowerPac Spoilers you command descent rates up to 3.5 times faster.
Simply touch a button and PowerPac Spoilers instantly reduce lift and
increase drag.
Deploy your Cessna's PowerPac Spoilers at any speed up to Vne for
rapid descent rates without the need for major power reductions. Avoid
engine shock cooling and maintain cabin pressure.
PowerPac Spoilers are
doubly useful in sudden turbulence by reducing lift-induced loads
carried by the wings. The Jet Type design provides maximum effect, no
drag when retracted and lower installation cost. Plus you can deploy and
retract PowerPac Spoilers in icing conditions.
I had spoilers on my 421. Absolutely loved them.
They made engine management during descent a breeze and allowed for some steep 2500 fpm descents to comply with the occasional ATC slam dunk approaches.
Bob Thomason
April 2022
PowerPac Spoiler Performance Graph depicts actual flight
test data obtained during required FAA certification flight tests of
Spoilers equipped Cessna 400 Series aircraft. 402, 414, 421, 425.
PowerPac airplane spoilers "Jet Type" design is similar to
those used on commercial jet airliners. The system consists of single
flat plates, 17.50" X 10.50" one on top of each wing that lies flat when not in use.
When deployed, they extend upward into the slipstream at a 60-degree
angle, thereby "spoiling" a portion of the lift being generated by the
wing, while at the same time creating drag. PowerPac
Spoilers are designed to work in conjunction with standard
Cessna 400 Series aircraft parts.
There is an STC’d PowerPac Spoiler Kit just for your Cessna 400 Series.
We’ve flown many hours in your aircraft type during testing and
certification. Give us a call today: 253-851-1769 or Email Us.
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I had spoilers on my 421. Absolutely loved them.
Enjoy the added benefits with your
spoiler equipped Cessna 400
Series airplane!
PowerPac airplane spoilers "Jet Type" design is similar to
those used on commercial jet airliners. The system consists of single
flat plates, 17.50" X 10.50" one on top of each wing that lies flat when not in use.
STC: SA4913NM 3-30-90 SP4000 Cessna 402C, 402C R/STOL, 414A, 414A R/STOL,
414AW, 421C, 421CW, 421C R/STOL, 421C w/Turbine engines, 425 SA4937NM
5-11-90 SP6000 Cessna 421B (Without STOL) SA00001SE 6-9-93 SP12000
Cessna 414 (Without STOL) Uses independent, dedicated hydraulic power
pack. 
