AOPA Pilot Magazine - August 2021 - 41

AVIATION
HEADSETS
PORTABLE
INTERCOMS
S-20 Headset
Test Pilot /
BY BARRY SCHIFF
1 What is the difference
between a dirigible and an
airship?
2 True or false? Cessna built
a Seneca before Piper did,
and Piper built a Skyhawk
before Cessna did.
3 From reader John
Schmidt: The first U.S. city
to be bombed from the air
was
A. El Paso, Texas.
B. San Francisco,
California.
C. Tulsa, Oklahoma.
D. Yuma, Arizona.
4 A pilot departs the
Coleman A. Young Municipal
Airport in Detroit, Michigan,
and heads due south on a
long-distance flight. What is
the first foreign country over
which he will fly?
5 Why did the carrier-based
Mitsubishi A6M3-22 Zero
have such small folding
wing tips while U.S. Navy
fighters had much more of
their wings fold up or aft to
accommodate more aircraft
on the cramped deck of a
carrier?
6 What aerobatic maneuver
did the Rutan Model 76
Voyager perform during its
historic, nonstop, unrefueled
1986 flight around the
world?
7 From reader Bruce
Curtis: True or false? During
World War II, Nazi Germany
built and flew a four-engine,
turbojet-powered bomber
with fixed landing gear and
wheel pants.
8 The first commercial
jetliner to be intentionally
flown faster than Mach 1.0,
the speed of sound, was a
A. Boeing 707.
B. Convair 990.
C. Douglas DC-8.
D. No commercial jetliner
ever did this.
Answers on p. 48
PTT Push-To-Talk Switches
* Attaches to the control
yoke with a hook
and loop strap
* Available in PTT-HS
and PTT-ICS versions
* Coiled cable extends to 6 feet
See our web site for our complete line of headsets,
intercoms, and accessories.
Sigtronics Corporation
909 305-9399 * www.sigtronics.com
178 East Arrow Highway, San Dimas, CA 91773
AOPA PILOT / August 2021
41
* Noise-canceling
microphone with
windscreen
* Articulating mic
boom
* Available in
Monaural, Youth,
and Helicopter
versions
* Foam ear seals
* 3 year warranty
S-58 Headset
* Powder coated
no-glare frame
* Microphone
fl ex boom
* Gel ear seals
* Youth version
available
* 5 year warranty
* Custom headset bag
* Available in Monaural,
Monaural / Stereo,
and Helicopter
versions
SPO Portable Intercom
* Operates up to 40
hours on one 9-volt
battery (SPO-22)
* Includes a DC cable
for aircraft power
* 5 year warranty
* Music input
* Audio output for
recording ATC fl ight dialog-Great for training
* Push to Talk Switch inputs for both pilot & copilot
* Available in 2, 4, 6, 8, and 10 place versions
JOHN UELAND

http://www.sigtronics.com

AOPA Pilot Magazine - August 2021

Table of Contents for the Digital Edition of AOPA Pilot Magazine - August 2021

Contents
AOPA Pilot Magazine - August 2021 - Intro
AOPA Pilot Magazine - August 2021 - BB1
AOPA Pilot Magazine - August 2021 - BB2
AOPA Pilot Magazine - August 2021 - Cover1
AOPA Pilot Magazine - August 2021 - Cover2
AOPA Pilot Magazine - August 2021 - Contents
AOPA Pilot Magazine - August 2021 - 2
AOPA Pilot Magazine - August 2021 - 3
AOPA Pilot Magazine - August 2021 - 4
AOPA Pilot Magazine - August 2021 - 5
AOPA Pilot Magazine - August 2021 - 6
AOPA Pilot Magazine - August 2021 - 7
AOPA Pilot Magazine - August 2021 - 8
AOPA Pilot Magazine - August 2021 - 9
AOPA Pilot Magazine - August 2021 - 10
AOPA Pilot Magazine - August 2021 - 11
AOPA Pilot Magazine - August 2021 - 12
AOPA Pilot Magazine - August 2021 - 13
AOPA Pilot Magazine - August 2021 - 14
AOPA Pilot Magazine - August 2021 - 15
AOPA Pilot Magazine - August 2021 - 16
AOPA Pilot Magazine - August 2021 - 17
AOPA Pilot Magazine - August 2021 - 18
AOPA Pilot Magazine - August 2021 - 19
AOPA Pilot Magazine - August 2021 - 20
AOPA Pilot Magazine - August 2021 - 21
AOPA Pilot Magazine - August 2021 - 22
AOPA Pilot Magazine - August 2021 - 23
AOPA Pilot Magazine - August 2021 - 24
AOPA Pilot Magazine - August 2021 - 25
AOPA Pilot Magazine - August 2021 - 26
AOPA Pilot Magazine - August 2021 - 27
AOPA Pilot Magazine - August 2021 - 28
AOPA Pilot Magazine - August 2021 - 29
AOPA Pilot Magazine - August 2021 - 30
AOPA Pilot Magazine - August 2021 - 31
AOPA Pilot Magazine - August 2021 - 32
AOPA Pilot Magazine - August 2021 - 33
AOPA Pilot Magazine - August 2021 - 34
AOPA Pilot Magazine - August 2021 - 35
AOPA Pilot Magazine - August 2021 - 36
AOPA Pilot Magazine - August 2021 - 37
AOPA Pilot Magazine - August 2021 - 38
AOPA Pilot Magazine - August 2021 - 39
AOPA Pilot Magazine - August 2021 - 40
AOPA Pilot Magazine - August 2021 - 41
AOPA Pilot Magazine - August 2021 - 42
AOPA Pilot Magazine - August 2021 - 43
AOPA Pilot Magazine - August 2021 - 44
AOPA Pilot Magazine - August 2021 - 45
AOPA Pilot Magazine - August 2021 - 46
AOPA Pilot Magazine - August 2021 - 47
AOPA Pilot Magazine - August 2021 - 48
AOPA Pilot Magazine - August 2021 - 49
AOPA Pilot Magazine - August 2021 - 50
AOPA Pilot Magazine - August 2021 - 51
AOPA Pilot Magazine - August 2021 - 52
AOPA Pilot Magazine - August 2021 - 53
AOPA Pilot Magazine - August 2021 - 54
AOPA Pilot Magazine - August 2021 - 55
AOPA Pilot Magazine - August 2021 - 56
AOPA Pilot Magazine - August 2021 - 57
AOPA Pilot Magazine - August 2021 - 58
AOPA Pilot Magazine - August 2021 - 59
AOPA Pilot Magazine - August 2021 - 60
AOPA Pilot Magazine - August 2021 - 61
AOPA Pilot Magazine - August 2021 - 62
AOPA Pilot Magazine - August 2021 - 63
AOPA Pilot Magazine - August 2021 - 64
AOPA Pilot Magazine - August 2021 - 65
AOPA Pilot Magazine - August 2021 - 66
AOPA Pilot Magazine - August 2021 - 67
AOPA Pilot Magazine - August 2021 - 68
AOPA Pilot Magazine - August 2021 - 69
AOPA Pilot Magazine - August 2021 - 70
AOPA Pilot Magazine - August 2021 - 71
AOPA Pilot Magazine - August 2021 - 72
AOPA Pilot Magazine - August 2021 - 73
AOPA Pilot Magazine - August 2021 - 74
AOPA Pilot Magazine - August 2021 - 75
AOPA Pilot Magazine - August 2021 - 76
AOPA Pilot Magazine - August 2021 - 77
AOPA Pilot Magazine - August 2021 - 78
AOPA Pilot Magazine - August 2021 - 79
AOPA Pilot Magazine - August 2021 - 80
AOPA Pilot Magazine - August 2021 - 81
AOPA Pilot Magazine - August 2021 - 82
AOPA Pilot Magazine - August 2021 - 83
AOPA Pilot Magazine - August 2021 - 84
AOPA Pilot Magazine - August 2021 - 85
AOPA Pilot Magazine - August 2021 - 86
AOPA Pilot Magazine - August 2021 - 87
AOPA Pilot Magazine - August 2021 - 88
AOPA Pilot Magazine - August 2021 - 89
AOPA Pilot Magazine - August 2021 - 90
AOPA Pilot Magazine - August 2021 - 91
AOPA Pilot Magazine - August 2021 - 92
AOPA Pilot Magazine - August 2021 - 93
AOPA Pilot Magazine - August 2021 - 94
AOPA Pilot Magazine - August 2021 - 95
AOPA Pilot Magazine - August 2021 - 96
AOPA Pilot Magazine - August 2021 - 97
AOPA Pilot Magazine - August 2021 - 98
AOPA Pilot Magazine - August 2021 - 99
AOPA Pilot Magazine - August 2021 - 100
AOPA Pilot Magazine - August 2021 - 101
AOPA Pilot Magazine - August 2021 - 102
AOPA Pilot Magazine - August 2021 - 103
AOPA Pilot Magazine - August 2021 - 104
AOPA Pilot Magazine - August 2021 - 105
AOPA Pilot Magazine - August 2021 - 106
AOPA Pilot Magazine - August 2021 - 107
AOPA Pilot Magazine - August 2021 - 108
AOPA Pilot Magazine - August 2021 - 109
AOPA Pilot Magazine - August 2021 - 110
AOPA Pilot Magazine - August 2021 - 111
AOPA Pilot Magazine - August 2021 - 112
AOPA Pilot Magazine - August 2021 - Cover3
AOPA Pilot Magazine - August 2021 - Cover4
https://www.nxtbook.com/nxtbooks/aopa/pilot_202410
https://www.nxtbook.com/nxtbooks/aopa/pilot_202409
https://www.nxtbook.com/nxtbooks/aopa/pilot_202408
https://www.nxtbook.com/nxtbooks/aopa/pilot_202407
https://www.nxtbook.com/nxtbooks/aopa/pilot_202406
https://www.nxtbook.com/nxtbooks/aopa/pilot_202405
https://www.nxtbook.com/nxtbooks/aopa/pilot_202404
https://www.nxtbook.com/nxtbooks/aopa/pilot_202403
https://www.nxtbook.com/nxtbooks/aopa/pilot_202402
https://www.nxtbook.com/nxtbooks/aopa/pilot_202401
https://www.nxtbook.com/nxtbooks/aopa/pilot_202312
https://www.nxtbook.com/nxtbooks/aopa/pilot_202311
https://www.nxtbook.com/nxtbooks/aopa/pilot_202310
https://www.nxtbook.com/nxtbooks/aopa/pilot_202309
https://www.nxtbook.com/nxtbooks/aopa/pilot_202308
https://www.nxtbook.com/nxtbooks/aopa/pilot_202307
https://www.nxtbook.com/nxtbooks/aopa/pilot_202306
https://www.nxtbook.com/nxtbooks/aopa/pilot_202305
https://www.nxtbook.com/nxtbooks/aopa/pilot_202304
https://www.nxtbook.com/nxtbooks/aopa/pilot_202303
https://www.nxtbook.com/nxtbooks/aopa/pilot_202302
https://www.nxtbook.com/nxtbooks/aopa/pilot_202301
https://www.nxtbook.com/nxtbooks/aopa/pilot_202212
https://www.nxtbook.com/nxtbooks/aopa/pilot_202211
https://www.nxtbook.com/nxtbooks/aopa/pilot_202210
https://www.nxtbook.com/nxtbooks/aopa/pilot_202209
https://www.nxtbook.com/nxtbooks/aopa/pilot_202208
https://www.nxtbook.com/nxtbooks/aopa/pilot_202207
https://www.nxtbook.com/nxtbooks/aopa/pilot_202206
https://www.nxtbook.com/nxtbooks/aopa/pilot_202205
https://www.nxtbook.com/nxtbooks/aopa/pilot_202204
https://www.nxtbook.com/nxtbooks/aopa/pilot_202203
https://www.nxtbook.com/nxtbooks/aopa/pilot_202202
https://www.nxtbook.com/nxtbooks/aopa/pilot_202201
https://www.nxtbook.com/nxtbooks/aopa/pilot_202112
https://www.nxtbook.com/nxtbooks/aopa/pilot_202111
https://www.nxtbook.com/nxtbooks/aopa/pilot_202110
https://www.nxtbook.com/nxtbooks/aopa/pilot_202109
https://www.nxtbook.com/nxtbooks/aopa/pilot_202108
https://www.nxtbook.com/nxtbooks/aopa/pilot_202107
https://www.nxtbook.com/nxtbooks/aopa/pilot_202106
https://www.nxtbook.com/nxtbooks/aopa/pilot_202105
https://www.nxtbook.com/nxtbooks/aopa/pilot_202104
https://www.nxtbook.com/nxtbooks/aopa/pilot_202103
https://www.nxtbook.com/nxtbooks/aopa/pilot_202102
https://www.nxtbook.com/nxtbooks/aopa/pilot_202101
https://www.nxtbook.com/nxtbooks/aopa/pilot_202012
https://www.nxtbook.com/nxtbooks/aopa/pilot_202011
https://www.nxtbook.com/nxtbooks/aopa/pilot_202010
https://www.nxtbook.com/nxtbooks/aopa/pilot_202009
https://www.nxtbook.com/nxtbooks/aopa/pilot_202008
https://www.nxtbook.com/nxtbooks/aopa/pilot_202007
https://www.nxtbook.com/nxtbooks/aopa/pilot_202006
https://www.nxtbook.com/nxtbooks/aopa/pilot_202005
https://www.nxtbook.com/nxtbooks/aopa/pilot_202004
https://www.nxtbook.com/nxtbooks/aopa/pilot_202003
https://www.nxtbook.com/nxtbooks/aopa/pilot_202002
https://www.nxtbook.com/nxtbooks/aopa/pilot_202001
https://www.nxtbook.com/nxtbooks/aopa/pilot_201912
https://www.nxtbook.com/nxtbooks/aopa/pilot_201911
https://www.nxtbook.com/nxtbooks/aopa/pilot_201910
https://www.nxtbook.com/nxtbooks/aopa/pilot_201909
https://www.nxtbook.com/nxtbooks/aopa/pilot_201908
https://www.nxtbook.com/nxtbooks/aopa/pilot_201907
https://www.nxtbook.com/nxtbooks/aopa/pilot_201906
https://www.nxtbook.com/nxtbooks/aopa/pilot_201905
https://www.nxtbook.com/nxtbooks/aopa/pilot_201904
https://www.nxtbook.com/nxtbooks/aopa/pilot_201903
https://www.nxtbook.com/nxtbooks/aopa/pilot_201902
https://www.nxtbook.com/nxtbooks/aopa/pilot_201901
https://www.nxtbook.com/nxtbooks/aopa/pilot_201812
https://www.nxtbook.com/nxtbooks/aopa/pilot_201811
https://www.nxtbook.com/nxtbooks/aopa/pilot_201810
https://www.nxtbook.com/nxtbooks/aopa/pilot_201809
https://www.nxtbook.com/nxtbooks/aopa/pilot_201808
https://www.nxtbook.com/nxtbooks/aopa/pilot_201807
https://www.nxtbook.com/nxtbooks/aopa/pilot_201806
https://www.nxtbook.com/nxtbooks/aopa/pilot_201805
https://www.nxtbook.com/nxtbooks/aopa/pilot_201804
https://www.nxtbook.com/nxtbooks/aopa/pilot_201803
https://www.nxtbook.com/nxtbooks/aopa/pilot_201802
https://www.nxtbook.com/nxtbooks/aopa/pilot_201801
https://www.nxtbook.com/nxtbooks/aopa/pilot_201712
https://www.nxtbook.com/nxtbooks/aopa/pilot_201711
https://www.nxtbook.com/nxtbooks/aopa/pilot_201710
https://www.nxtbook.com/nxtbooks/aopa/pilot_201709
https://www.nxtbook.com/nxtbooks/aopa/pilot_201708
https://www.nxtbook.com/nxtbooks/aopa/pilot_201707
https://www.nxtbook.com/nxtbooks/aopa/pilot_201706
https://www.nxtbook.com/nxtbooks/aopa/pilot_201705
https://www.nxtbook.com/nxtbooks/aopa/pilot_201704
https://www.nxtbook.com/nxtbooks/aopa/pilot_201703
https://www.nxtbook.com/nxtbooks/aopa/pilot_201702
https://www.nxtbook.com/nxtbooks/aopa/pilot_201701
https://www.nxtbook.com/nxtbooks/aopa/pilot_201612
https://www.nxtbook.com/nxtbooks/aopa/pilot_201611
https://www.nxtbook.com/nxtbooks/aopa/pilot_201610
https://www.nxtbook.com/nxtbooks/aopa/pilot_201609
https://www.nxtbook.com/nxtbooks/aopa/pilot_201608
https://www.nxtbook.com/nxtbooks/aopa/pilot_201607
https://www.nxtbook.com/nxtbooks/aopa/pilot_201606
https://www.nxtbook.com/nxtbooks/aopa/pilot_201605
https://www.nxtbook.com/nxtbooks/aopa/pilot_201604
https://www.nxtbook.com/nxtbooks/aopa/pilot_201603
https://www.nxtbook.com/nxtbooks/aopa/pilot_201602
https://www.nxtbook.com/nxtbooks/aopa/pilot_201601
https://www.nxtbook.com/nxtbooks/aopa/pilot_201512
https://www.nxtbook.com/nxtbooks/aopa/pilot_201511
https://www.nxtbook.com/nxtbooks/aopa/pilot_201510
https://www.nxtbook.com/nxtbooks/aopa/pilot_201509
https://www.nxtbook.com/nxtbooks/aopa/pilot_201508
https://www.nxtbook.com/nxtbooks/aopa/pilot_201507
https://www.nxtbook.com/nxtbooks/aopa/pilot_201506
https://www.nxtbook.com/nxtbooks/aopa/pilot_201505
https://www.nxtbook.com/nxtbooks/aopa/pilot_201504
https://www.nxtbook.com/nxtbooks/aopa/pilot_201503
https://www.nxtbook.com/nxtbooks/aopa/pilot_201502
https://www.nxtbook.com/nxtbooks/aopa/pilot_201501
https://www.nxtbook.com/nxtbooks/aopa/pilot_201412
https://www.nxtbook.com/nxtbooks/aopa/pilot_201411
https://www.nxtbook.com/nxtbooks/aopa/pilot_201410
https://www.nxtbook.com/nxtbooks/aopa/pilot_201409
https://www.nxtbook.com/nxtbooks/aopa/pilot_201408
https://www.nxtbook.com/nxtbooks/aopa/pilot_201407
https://www.nxtbook.com/nxtbooks/aopa/pilot_201406
https://www.nxtbook.com/nxtbooks/aopa/pilot_201405
https://www.nxtbook.com/nxtbooks/aopa/pilot_201404
https://www.nxtbook.com/nxtbooks/aopa/pilot_201403
https://www.nxtbook.com/nxtbooks/aopa/pilot_201402
https://www.nxtbook.com/nxtbooks/aopa/pilot_201401
https://www.nxtbook.com/nxtbooks/aopa/pilot_201312
https://www.nxtbook.com/nxtbooks/aopa/pilot_201311
https://www.nxtbook.com/nxtbooks/aopa/pilot_201310
https://www.nxtbook.com/nxtbooks/aopa/pilot_201309
https://www.nxtbook.com/nxtbooks/aopa/pilot_201308
https://www.nxtbook.com/nxtbooks/aopa/pilot_201307
https://www.nxtbook.com/nxtbooks/aopa/pilot_201306
https://www.nxtbook.com/nxtbooks/aopa/pilot_201305
https://www.nxtbook.com/nxtbooks/aopa/pilot_201304
https://www.nxtbook.com/nxtbooks/aopa/pilot_201303
https://www.nxtbook.com/nxtbooks/aopa/pilot_201302
https://www.nxtbook.com/nxtbooks/aopa/pilot_201301
https://www.nxtbook.com/nxtbooks/aopa/pilot_201212
https://www.nxtbook.com/nxtbooks/aopa/pilot_201211
https://www.nxtbook.com/nxtbooks/aopa/pilot_201210
https://www.nxtbook.com/nxtbooks/aopa/pilot_201209
https://www.nxtbook.com/nxtbooks/aopa/pilot_201208
https://www.nxtbook.com/nxtbooks/aopa/pilot_201207
https://www.nxtbook.com/nxtbooks/aopa/pilot_201206
https://www.nxtbook.com/nxtbooks/aopa/pilot_201205
https://www.nxtbook.com/nxtbooks/aopa/pilot_201204
https://www.nxtbook.com/nxtbooks/aopa/pilot_201203
https://www.nxtbook.com/nxtbooks/aopa/pilot_201202
https://www.nxtbook.com/nxtbooks/aopa/pilot_201201
https://www.nxtbook.com/nxtbooks/aopa/pilot_201112
https://www.nxtbook.com/nxtbooks/aopa/pilot_201111
https://www.nxtbook.com/nxtbooks/aopa/pilot_201110
https://www.nxtbook.com/nxtbooks/aopa/pilot_201109
https://www.nxtbook.com/nxtbooks/aopa/pilot_201108
https://www.nxtbook.com/nxtbooks/aopa/pilot_201107
https://www.nxtbook.com/nxtbooks/aopa/pilot_201106
https://www.nxtbook.com/nxtbooks/aopa/pilot_201105
https://www.nxtbook.com/nxtbooks/aopa/pilot_201104
https://www.nxtbook.com/nxtbooks/aopa/pilot_201103
https://www.nxtbook.com/nxtbooks/aopa/pilot_201103_test
https://www.nxtbook.com/nxtbooks/aopa/pilot_201102
https://www.nxtbook.com/nxtbooks/aopa/pilot_201011demo
https://www.nxtbook.com/nxtbooks/aopa/pilot_201011
https://www.nxtbook.com/nxtbooks/aopa/pilot0308
https://www.nxtbookmedia.com