Rev: 2
Date: 11/15/18
1-18
WEIGHT AND BALANCE
It is the pilot’s responsibility to insure that the aircraft is loaded properly and
within the weight and balance limitations. The weight and balance of the aircraft are
factors that will affect all flight performance, and handling characteristics of the aircraft.
Find the actual licensed empty weight and CG of the aircraft on the Weight and
Balance Form. This document is required to remain with the aircraft and must reflect
any changes to the empty weight or CG. From that information and the instructions from
the POH, the pilot can determine the useful load and proper load distribution for the
aircraft.
Weight and Balance Procedure
1. Make a copy of the RV-12iS Weight & Balance Worksheet.
2. Drain all fuel from the tank.
3. Confirm that engine oil is at normal operating level.
4. Install both lower and upper cowl.
5. Check that all fairings, access covers/plates, etc. are fully installed.
6. Place seat cushions in the aircraft.
7. Check that there are no other items (tools, etc.) left in the cabin.
8. Roll aircraft onto 2 inch (5cm) blocks under main wheels and chock wheels.
9. Level the aircraft with reference to the canopy side rail/deck by inflating/deflating
nose tire or main tires as appropriate or by increasing or decreasing block thickness.
10. Drop a plumb line off the leading edge of each wing just outboard of main wheel
and mark a line on the floor between the two points.
11. Measure distance forward from left main wheel axle to the line on the floor and
record on the RV-12iS Weight & Balance Worksheet as D1.
12. Measure distance aft from nose wheel axle to line on floor and record on RV-12iS
Weight & Balance Worksheet as D2.
13. Measure distance forward from right main wheel axle to line on floor and record on
RV-12iS Weight & Balance Worksheet as D3.
14. Roll aircraft off blocks under main wheels. Place blocks on scale pads for main
wheels. Zero scales.
15. Roll aircraft onto scales using ramps. Verify canopy deck is level (adjust tire inflation
if/as necessary), close the canopy.
16. Record the left main wheel weight on RV-12iS Weight & Balance Worksheet as W1.
17. Record the nose wheel weight on RV-12iS Weight & Balance Worksheet as W2.
18. Record the right main wheel weight on RV-12iS Weight & Balance Worksheet as
W3.
19. On the RV-12iS Weight & Balance Worksheet, calculate empty weight, empty
moment, and empty arm.
20. Enter values for Empty Weight, Empty Moment, and Empty Arm into the table on
“YOUR AIRPLANE” table within RV-12iS Pilot Operating Handbook Section 6.
21. Place the RV-12iS Weight & Balance Worksheet in the aircraft as it is part of the
required documentation.
22. Enter values for Empty Weight, Empty Moment, and Empty Arm onto the Weight
and Balance Record page in this section.
Summary of Contents for RV 12iS
Page 1: ...Rev 2 Date 11 15 18 i MAINTENANCE MANUAL Aircraft Serial Number ___________________________...
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