As usual, I've downloaded the end-of-year FAA registration database and run my various processes to examine the trends for a number of homebuilt aircraft types. Note that these count only aircraft registered as Experimental Amateur-Built. It does not count aircraft that do not list a certification type (about 5,000 aircraft with homebuilt-like names) nor aircraft registered as Special Light Sport or Experimental Light Sport (e.g., SLSA or ELSA RV-12s).

Type
2013
2014
2015
2016
2017
2018
2019
2020
2021
Air Command
36
35
31
31
25
19
18
18
18
Aventura
71
68
63
65
57
50
49
50
48
Avid
359
359
343
352
342
296
289
280
278
Baby/Junior Ace
230
228
228
230
225
204
201
199
197
Bede BD-4
98
91
93
92
90
78
82
78
79
Bede BD-5
49
43
40
41
38
34
35
32
31
Benson Gyro
271
218
200
198
158
105
79
64
62
Bowers Fly Baby
183
168
167
167
160
140
139
135
130
Carbon Cub (EAB)
29
46
64
90
119
177
244
308
331
Challenger
584
594
586
593
578
491
480
476
461
Christen Eagle
214
207
206
205
204
194
192
192
193
Cozy
158
160
164
165
163
151
151
156
158
Glasair
601
606
596
603
599
571
571
563
558
GlaStar/Sportsman
374
386
396
407
424
410
424
438
443
Harmon Rocket
88
85
87
85
85
80
77
75
78
Hatz
105
107
110
111
110
112
111
110
113
Kitfox
905
918
936
950
946
875
871
889
887
Kolb (Ex-AB)
248
241
236
235
227
205
198
186
181
Lancair (All Models)
835
847
855
875
866
824
826
834
839
Lancair IV
246
244
259
260
249
236
240
243
244
Midget Mustang
241
240
236
238
233
207
205
204
202
Murphy
173
171
171
176
174
156
161
159
160
Pietenpol
307
313
311
321
319
296
297
289
284
Pitts (EX-AB)
639
613
617
625
608
548
543
534
522
Pulsar/KIS
130
126
124
125
122
107
108
105
102
Quickie/Q2/Q200
168
148
140
143
130
109
103
100
98
Quicksilver EX-AB
170
163
156
162
154
134
127
129
131
RAF-2000 Gyro
113
114
110
111
90
69
69
69
66
Rand KR-2
194
175
167
167
154
132
132
124
115
RANS
627
638
659
677
673
636
651
652
663
RANS S-12
130
129
128
128
121
107
106
109
104
RANS S-6
200
201
208
213
211
204
205
200
198
RANS S-7
180
189
202
206
209
202
210
208
213
Rotorway
404
392
374
380
350
296
296
287
283
Rutan Long-EZ
428
418
416
417
406
379
380
378
369
Rutan Varieze
323
297
286
286
272
243
238
231
222
SeaRey
231
242
242
249
255
241
238
235
236
Sonerai
215
199
194
194
184
156
156
158
155
Sonex
383
420
451
484
497
486
510
527
532
Steen Skybolt
250
246
247
248
235
215
215
215
211
Stolp
404
396
399
402
385
358
349
354
342
Stolp Starduster
357
349
351
352
337
310
302
308
301
Thorp T-18
261
259
259
262
257
239
238
236
238
Vans
5745
5956
6110
6293
6414
6447
6634
6779
6960
Vans RV-3
155
154
158
160
152
149
149
149
149
Vans RV-4
952
956
955
965
958
921
921
921
922
Vans RV-6
1763
1783
1775
1795
1796
1731
1742
1737
1750
Vans RV-7
1000
1066
1118
1170
1220
1244
1285
1322
1358
Vans RV-8
1038
1082
1123
1161
1198
1215
1252
1278
1304
Vans RV-9
522
552
588
611
630
638
658
677
689
Vans RV-10
304
340
366
394
419
434
459
492
530
Vans RV-12 (EX-AB)
36
49
53
63
68
74
75
74
81
Vans RV-14
0
0
0
14
38
66
98
134
182
Velocity
232
237
235
240
236
222
224
228
228
Volksplane
104
95
85
86
76
48
47
48
48
Zenair
862
920
965
1013
1028
992
1013
1028
1066
Zenair CH-601
340
348
353
367
367
339
332
325
323
Zenair CH-701
331
334
348
351
347
318
328
333
329
Zenair CH-750
86
127
145
171
187
209
229
247
285
Overall
27946
27909
28078
28830
28451
26572
26842
26941
27117

Ron Wanttaja