Monarch
Premium Caps By Hartwig's
Monarch Premium Cap System are the best caps available for
the single engine Cessna. They have safety features that cannot
be found on any other cap available for your plane. Since 1987 over
5,000 sets of Monarch Premium Caps have been sold and we have received
numerous phone calls and letters from customers who say that their lives
were saved because the Monarch Premium Caps were installed on their
aircraft.
Monarch Premium Caps are a stainless steel umbrella
cap with a ratchetting mechanism that releases and "clicks"
when the cap is tightened correctly. They have a dual spring-loaded
vent for both pressure and vacuum. This is a secondary vent in case
the primary vent gets obstructed. Also Monarch Premium Caps can be removed
while wearing mittens for ease of filling in cold weather.
The adapter plates are die-formed to raise the inlet
hole about 3/16th of an insh above the surface of the wing to divert
water away from the hole. (Notice the center bubble in the picture above)
The adapter plates are made in three different styles, as shown at the
top of the page. The reason for the difference styles of plates is that
Cessna used different styles of mounting locations on different models
of the single engine aircraft. With the year, model and the serial number
of your aircraft, we can send the correct adapter plates for your aircraft.
All three styles feature an anti-siphon flapper valve on the bottom
of the inlet to prevent massive loss of fuel if the cap is left off
or loose. (You can see this in the pictures below)
Also
our inlet is 1.5" at the widest point to keep jet fuel nozzles
out. Your insurance company may give you a discount on your
premiums or pay for a portion of these caps due to this fact. Usually
all they need is something in print. (such as this document) If they
need a formal letter or a drawing, we will be happy to provide it to
them.
The Monarch Premium Fuel Caps are certified for installation on Cessna
models 177, 180, 182, 185, 188, 205, 206, and 210 for bladder cells
and wet wings. These caps will also fit and function on Cessna models
190 and 195, but these models require a
field approval--our customers with these models have had no problems
getting these. It does require moving nutplates to install on the 190
and 195.
You can buy your caps right now by contacting us at our toll-free
number.
What you will receive with every order:
2 caps, 2 adapter plates, plus:
- With bladder cell caps we also supply 2 cork and
nitrile gaskets and new stainless steel screws. We supply two kinds
of perimeter hole pattern screws: sheet metal and machine screws. Most
people will not know what their Cessna needs until they remove the first
existing screw. Then use the appropriate screws in our kit and discard
the other type. Everything required for installation is included.
- With the oval wet wing caps we also supply new stainless
steel screws and sealant. Everything required for installation is included.
- With the small round caps we also supply new stainless
steel screws, nutcerts that replace the existing rivets, an expendable
nutcert installation tool, and the sealant. Everything required for
installation is included.
AD's Monarch Premium Caps and System comply with and
are Approved by the FAA:
AD # 84-10-01-R1 Monarch Premium
Cap System is an equivalent/alternate means of compliance with paragraph
B of this AD. (click for pdf)
AD # 79-10-14 R1 Monarch Premium
Caps also provide and equivalent means of compliance to this AD due
to the pressure/vacuum relief valve incorporated into the fuel cap.
(click for pdf)
See our Monarch Premium Caps FAQ's
Installation Information:
Bladder Cap Installations
(click for pdf)
Wet Wing Cap Installations
(click for pdf)
See our Monarch Premium Caps Installation
Tips