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Pilot's Handbook of Aeronautical Knowledge
Introduction To Flying

Aircraft Types and Categories

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Pilot's Handbook of Aeronautical Knowledge



Table of Contents

Chapter 1, Introduction To Flying
Chapter 2, Aircraft Structure
Chapter 3, Principles of Flight
Chapter 4, Aerodynamics of Flight
Chapter 5, Flight Controls
Chapter 6, Aircraft Systems
Chapter 7, Flight Instruments
Chapter 8, Flight Manuals and Other Documents
Chapter 9, Weight and Balance
Chapter 10, Aircraft Performance
Chapter 11, Weather Theory
Chapter 12, Aviation Weather Services
Chapter 13, Airport Operation
Chapter 14, Airspace
Chapter 15, Navigation
Chapter 16, Aeromedical Factors
Chapter 17, Aeronautical Decision Making




FDC NOTAMs contain such things as amendments to
published Instrument Approach Procedures (IAPs) and other
current aeronautical charts. They are also used to advertise
temporary flight restrictions caused by such things as natural
disasters or large-scale public events that may generate a
congestion of air traffic over a site.

NOTAMs are available in printed form through subscription
from the Superintendent of Documents, from an FSS, or
online at The Pilot Web Site (http://pilotweb.nas.faa.gov/
distribution/atcscc.html), which provides access to current
NOTAM information. [Figure 1-19]

A sample of NOTAM information
Figure 1-19. A sample of NOTAM information available to the
public. Most are free of charge or can be downloaded from the
FAA website.

Safety Program Airmen Notification System (SPANS)
The FAA recently launched the Safety Program Airmen
Notification System (SPANS), an online event notification
system that provides timely and easy-to-assess seminar and
event information notification for airmen. The SPANS system
is taking the place of the current paper based mail system.
This transition will provide better service to airmen while
reducing costs for the FAA. Anyone can search the SPANS
system and register for events. To read more about SPANS,
visit www.faasafety.gov/SPANS/default.aspx.

Aircraft Types and Categories

Ultralight Vehicles
An ultralight aircraft [Figure 1-20] is referred to as a vehicle
because the FAA does not govern it if it:
• Is used or intended to be used by a single occupant.
• Is used for recreation or sport purposes.
• Does not have an airworthiness certificate.
• If unpowered, weighs less than 155 pounds.
• If powered, weighs less than 254 pounds empty weight,
excluding .oats and safety devices that are intended for
deployment in a potentially catastrophic situation.
• Has a fuel capacity not exceeding 5 gallons.
• Is not capable of more than 55 knots calibrated
airspeed at full power in level flight
• Has a power-off stall speed, which does not exceed
24 knots calibrated airspeed.

A typical ultralight vehicle
Figure 1-20. A typical ultralight vehicle, which weighs less than
254 pounds.

Ultralight vehicles do not require any form of pilot license or
certification if they are .own within 14 CFR 103 operating
rules which generally limit the ultralight vehicle to uncontrolled
airspace and no flight over populated areas. Every person flying
an ultralight should be familiar to the rules specified in 14
CFR 103.

Light Sport Aircraft (LSA) Category
In 2004, the FAA approved a new pilot certificate and aircraft
category program to allow individuals to join the aviation
community by reducing training requirements that affect
the overall cost of learning to fly. The Sport Pilot Certificate
was created for pilots flying light-weight, simple aircraft and
offers limited privileges. The category of aircraft called the