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Columbia 400 (LC41-550FG)
redistribution of baggage when the aft CG limit is exceeded. If no weight is placed on the hat
rack, then up to 120 lbs. can be placed in either zone or distributed evenly over the main baggage
area. This, of course, assumes that the placement of such weight does not exceed the maximum
gross weight or the center of gravity limitations.
The floor attachment points define the physical limits of each zone. That is, the area between the
forward and middle cross strap defines Zone A, and the middle cross strap and aft attachment
points define Zone B. There is a cargo net in the airplane that secures the contents in the baggage
compartment in three basic configurations. The table below, Figure 6 - 11, summarizes the three
different arrangements. The term "bubble" refers to the shape of the cargo net.
BAGGAGE CONFIGURATION TABLE
NO.
ZONE
Single forward bubble, anchored at the forward and middle
1.
A Only
attachment points.
Double bubble, anchored at forward, middle, and aft attachment
2.
A and B
points
Main
Weight is evenly distributed over the main baggage area. There
3.
Area
can be one or two bubbles depending on the shape of the baggage.
Baggage is always loaded in the forward area first (Zone A). Heavier items, of course, should be
placed near the floor, regardless of loading area, and never load the baggage compartment to a
level higher than the top of the hat rack. If only Zone A is utilized, the computations are based on
an arm of 155.7 inches. If both Zones A and B are utilized, with defined weights in each area as
shown in Configuration No. 2 in Figure 6 - 11, two computations will be made to determine the
total baggage weight and moments.
In this situation, each zone will have a significantly different quantifiable weight. For example,
assume that 100 lbs. are loaded in Zone A and 20 lbs. in Zone B. These combined weights and
respective arms produce a baggage CG of 159.3, over seven inches forward of the middle point
of the baggage area. Conversely, if the respective Zone A and B weights are 55 and 65 lbs., the
baggage CG moves less than one inch from the middle CG point. As a general rule, if the
weights placed in Zones A and B do not vary more than 15%, then the middle CG arm of 166.6
can be used to compute the main baggage area moment.
BAGGAGE NETS
The airplane has two baggage nets. The hat rack net secures items placed on the hat rack. The
floor net secures items in the main baggage area. A summary of the two nets follows. In
addition, if the rear seats are removed, an optional restraint system must be installed. Otherwise,
removal of the rear seats is prohibited.
1. The floor net provides a total of four anchoring points. The points are all on the floor with
two behind the back seat and two just below the hat rack bulkhead. In addition, the floor net
can be adjusted at any one of the four straps at the attachment points by pressing on the
cinch and sliding the strap. The net can be removed by releasing each of the four
Initial Issue of Manual: November 10, 2004
Latest Revision Level/Date: -/11-10-2004
CONFIGURATION OF CARGO NET
Figure 6 - 11
Section 6
Weight & Balance
APPLICABLE
ARM
155.7 inches
155.7 and 177.4 inches
times respective weights
166.6 inches
RC050002
6-11
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