- Rover Scout
- Explorer Scout
- Emergency Service
Fig. 1: AS-21-Front
- Size: 64 mm x 17 mm
- Shape: Rectangle
- Material: Twill
- Border: Cut-edge red
- Background: Red
- Lettering Color:
- Design: Black vertical cross inside white circle + left and right wing
Fig. 2: AS-21-Reverse
- Back: Gauze reinforced starched
Item Name: Air Scout Navigator - Ace
Item ID: AS-21
Collector Rating: 0
Requirements (1947-49)
1. Make a simple sextang, using a plumb-bob as a reference, and use it to determine the latitude by Polaris of your home and one additional location designated by your counselor.
2. Learn and teach to at least two other people the name and method of locating one star of the first magnitude in each of at least five different constellations.
3. Demonstrate the use of at least two types of computers for figuring compass course, wind correction angle, and Estimated Time of Arrival on any three given problems.
4. Explain and demonstrate by the use of a computer, the effect of differing pressures and temperatures on the true airspeed as compared to indicated airspeed and altitude. Explain with the aid of rough diagrams (of the construction of the airspeed instrument and its connections) why such relationships exist.
5. Demonstrate the use of the drift indicateo, using an actual drift indicator, mock-up, or diagram. Tell at least five different signs that a pilot may look for on the ground to determine the ground wind direction.
6. Describe the use of radio navigation, including the use of the directional loop for plotting a running fix; and describe thow a navigator or pilot intercepting a radio range leg can determine which direction to fly if he was not certain of the wind direction of the radio range.