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The information contained in this document is intended for the sole use of Canadian Challenger owners and is strictly proprietary and confidential. Table of Contents This document was written by National Ultralight to supplement the factory assembly and operating manuals. It provides additional information and support for all phases of building, flying and maintaining your Challenger. This is a MUST READ for all Challenger owners - COVER TO COVER!
An attentive inspection regimen will detect the early warning
signs of
Challengers registered in the Advanced Ultralight category There has been only one Challenger service bulletin issued
in the last decade! All aircraft owners and pilots are at risk of falling into a preflight routine wherein they look but they don't see! Likewise, owners of kitplanes may legally perform complex maintenance actions without any supervision or sign-off. We strongly encourage all owners to periodically have another
knowledgeable person inspect their airplane even though this is not required
by the regs.
This section only applies to the original Challenger II models. National Ultralight announced Nov. 15, 2005 that Quad City
has increased the manufacturer specified gross weight for many Challenger II
aircraft to 960 lbs. The applicable Challengers at 960 lbs gross weight meet or
exceed the ultimate load factors of +6G and -3G required for the Advanced
Ultralight category. This gives owners a great deal more legal leeway for options, accessories and amphibious floats. Click above for details including how to determine if the increased 960 lb gross weight is applicable to a particular Challenger II. The Rotax 582 is approved for Challenger aircraft in the
Advanced Ultralight category when installed with the motor mount, exhaust
mount, cooling system, reduction drive, prop and optional oil injection
sourced from National Ultralight. The approval of engines, wheels, floats and skis is contingent upon using approved installation hardware and instructions. One-off configurations or installations are not approved because it is not economically viable to do the extensive engineering analysis required to validate their airworthiness. Our Frequently Asked Questions section shows which engines, floats, skis, etc are approved for the Advanced Ultralight category - see Aircraft Registration. The Canadian Challenger Owners Manual has a variety of useful
links The Challenger with over 4,000 owners worldwide is undeniably
one of the most popular recreational aircraft of all time. Many of those
owners are active on the internet so there are numerous high calibre web
gathering places. These images may be printed and used to design paint schemes. This page elaborates on finishing your Challenger with the Stits Poly-Fiber Process and Stits Poly-Tone paint. Estimates are given of materials quantities and costs ranging from fabric tape to base coat, UV protection and colour. This sub-section contains the forms and information required
to register your Challenger in either the Basic Ultralight or the Advanced
Ultralight category. You will need to put registration marks on your Challenger. Before October 1996, Basic Ultralights were issued C-Ixxx marks while Advanced Ultralights got C-Fxxx or C-Gxxx. Since then all new ultralights are labeled C-Ixxx. Traditional placement is under the left wing and on both sides of the vertical tail. Now you may opt to place marks on both sides of the tail boom instead of the vertical tail. The marks on the wing may now be omitted entirely. Specifics on placement, size and format of the registration letters are given in the above link to Transport Canada. The least expensive and most attractive way to create these letters is by using decals, for example from Trim Line.
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