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testing considerations for ultralight vehicles under
FAR Part 103 and two-seat ultralight training
vehicles of less than 496 pounds empty weight
operating under an exemption to FAR Part 103.
b. Because of the large number of existing
amateur-built/ultralight aircraft designs and new
designs being introduced each year, the FAA encourages
public participation in updating this document.
Send comments, suggestions, or information about
this AC to the following address:
U.S. Department of Transportation
Federal Aviation Administration
Flight Standards Service (AFS-340)
800 Independence Ave, SW.
Washington, DC 20591
c. Suggestions also may be sent to AFS-340
by FAX (202) 267-5115.
d. After a review, appropriate comments,
suggestions, and information may be included in the
next revision of this AC.
8. TO OBTAIN COPIES OF THIS AC. Order
AC 90-89A from:
U.S. Department of Transportation
Property Use and Storage
Section, M-45.3
Washington, DC 20590.
William J. White
Deputy Director, Flight Standards Service
iii
5/24/95 AC 90-89A
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iv
AC 90-89A 5/24/95
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PER PLACEMENT IN DOCUMENT.
CONTENTS
Page
CHAPTER 1. PREPARATION
Section 1. Homework ............................................................................................................................... 1
Section 2. Airport Selection ..................................................................................................................... 2
Figure 1 - Runway Length Chart ................................................................................................. 3
Section 3. Emergency Plans and Equipment ........................................................................................... 4
Section 4. Test Pilot ................................................................................................................................ 6
Section 5. Medical Facts For Pilots ......................................................................................................... 7
Section 6. Transporting The Aircraft To the Airport .............................................................................. 9
Section 7. Assembly and Airworthiness Inspection ................................................................................ 10
Section 8. Weight and Balance ................................................................................................................ 14
Figure 2 - Empty Weight CG ....................................................................................................... 15
Figure 3 - Take Off CG ................................................................................................................ 16
Figure 4 - Additional Equipment Added ...................................................................................... 17
Section 9. Paperwork ............................................................................................................................... 18
Section 10. Powerplant Tests ..................................................................................................................... 19
Section 11. Additional Engine Tests ......................................................................................................... 22
Section 12. Propeller Inspection ................................................................................................................ 25
Figure 5 - Propeller Tracking ....................................................................................................... 26
CHAPTER 2. TAXI TESTS
Section 1. Low Speed Taxi Tests ............................................................................................................ 29
Section 2. High Speed Taxi Tests ........................................................................................................... 30
CHAPTER 3. THE FIRST FLIGHT
Section 1. General ................................................................................................................................... 33
Section 2. The Role of the Chase Plane .................................................................................................. 34
Section 3. Emergency Procedures ............................................................................................................ 35
Section 4. First Flight ............................................................................................................................... 36
Section 5. First Flight Procedures ............................................................................................................ 37
　
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