# List of aircraft (Si)

This is a list of aircraft in alphabetical order beginning with 'Si'.
* Sa
* Sb
* Sc
* Sd
* Se
* Sf
* Sg
* Sh
* Si
* Sj
* Sk
* Sl
* Sm
* Sn
* So
* Sp
* Sq
* Sr
* Ss
* St
* Su
* Sv
* Sw
* Sx
* Sy
* Sz

## Si
### SIA

(Società Incremento Aviazione, Cameri)
* Gabardini 1911 Le Monaco monoplane
* Gabardini 1912 flying boat
* Gabardini 1913 monoplane
* Gabardini 1914 biplane

### SIA

(Societá Industriale l'Aviazone)
* Bastianelli P.R.B.

### SIA-Delaunay-Belleville

(Société Industrielle d'Aviation - Etablissements Delaunay-Belleville)
* S.I.A.-Coanda BN2
* S.I.A.-Coanda Lorraine bomber

### SIA

(Società Italiana Aviazione / Società Italiana degli Aeroplani)
* SIA FB
* SIA 7
* SIA R2
* SIA 9B

### SIA

(Società Italiana degli Aeroplani / Enrico Luzzatto)
* SIA 1913 racing monoplane Roma
* SIA 1913 Circuito dei Laghi floatplane (Roma on floats)

### SIAI

(Società Italiana Aeroplani Idrovolanti / Societa Idrovolanti Alta Italia - S.I.A.I)
* SIAI S.8
* SIAI S.9
* SIAI S.12
* SIAI S.13
* SIAI S.16
* SIAI S.17
* SIAI S.19
* SIAI S.21
* SIAI S.22
* SIAI S.23
* SIAI S.50 (MVT)
* SIAI S.50 Hydro
* SIAI S.51
* SIAI S.52
* SIAI S.58
* SIAI S.67

### SIAI Marchetti

(Italy)
* SIAI-Marchetti SM.91
* SIAI-Marchetti SM.92
* SIAI-Marchetti SM.95
* SIAI-Marchetti SM.101
* SIAI-Marchetti SM.102
* SIAI Marchetti S.205
* SIAI Marchetti S.208
* SIAI Marchetti S.210
* SIAI Marchetti S.211
* SIAI Marchetti SF.250
* SIAI-Marchetti SF.260
* SIAI Marchetti Canguro
* SIAI-Marchetti SM.1019
* SIAI-Marchetti FN.333 Riviera
* SIAI-Marchetti SH-4
* SIAI-Marchetti SV-20

### SIAT

(Siebel Flugzeugwerke ATG)
* SIAT 222 Super Hummel
* SIAT 223 Flamingo

### SibNIA

* SibNIA TVS-2MS

### Siddeley-Deasy

(Siddeley-Deasy Motor Company, United Kingdom)
* Siddeley-Deasy R.T.1
* Siddeley-Deasy SR.2 Siskin
* Siddeley-Deasy Sinaia

### Sido

(Józef Sido)
* Sido S.1

### Siebel

* Siebel Fh 104 Hallore
* Siebel Si 201
* Siebel Si 202 Hummel
* Siebel Si 204

### Siegrist

(Rudolf Siegrist, Parma, Ohio, United States)
* Siegrist RS1 Ilse

### Siemens and FlyEco

* Siemens-FlyEco Magnus eFusion

### Siemens-Schuckert

(Siemens-Schuckertwerke)
* Siemens-Schuckert 1911 monoplane
* Siemens-Schuckert B.I
* Siemens-Forssmann Bulldog
* Siemens-Schuckert D.I
* Siemens-Schuckert D.II
* Siemens-Schuckert D.III
* Siemens-Schuckert D.IV
* Siemens-Schuckert D.V
* Siemens-Schuckert D.VI
* Siemens-Schuckert Dr.I
* Siemens-Schuckert DDr.I
* Siemens-Schuckert DD 5
* Siemens-Schuckert E.I
* Siemens-Schuckert E.II
* Siemens-Schuckert E.III
* Siemens-Schuckert L.I
* Siemens-Schuckert Forssman
* Siemens-Schuckert Steffen R.I
* Siemens-Schuckert Steffen R.II
* Siemens-Schuckert Steffen R.III
* Siemens-Schuckert Steffen R.IV
* Siemens-Schuckert Steffen R.V
* Siemens-Schuckert Steffen R.VI
* Siemens-Schuckert Steffen R.VII
* Siemens-Schuckert R.VIII
* Siemens-Schuckert R.IX (project only)
* Siemens-Schuckert Torpedogleiter

### Siemetzki

* Siemetzki ASRO 3-T
* Siemetzki ASRO 4

### Sierra

(Aircraft Industries Ltd (founders: John L Berney, J F Long, Art Wild), 931 E 14 St, San Leandro, California, United States)
* Sierra BLW-1
* Sierra BLW-2

### Sierra

(Sierra Aircraft Co (pres: Leon T Eliel), Sierra Airdrome, Foothill Blvd, Sierra Madre, California, United States)
* Sierra Standard

### Siersma

(Herman Siersma, Detroit, Michigan, United States)
* Siersma SRC-1

### Sievers-Miller

((?) Sievers and Phillip Miller, Valley City, North Carolina, United States)
* Sievers-Miller Special

### Sikorsky

(Igor Ivanovich Sikorsky, Russia)
* Sikorsky S-1
* Sikorsky S-2
* Sikorsky S-3
* Sikorsky S-4
* Sikorsky S-5
* Sikorsky S-6
* Sikorsky S-7
* Sikorsky S-8 Malyutka
* Sikorsky S-9 Kruglyi
* Sikorsky S-10
* Sikorsky S-11
* Sikorsky S-12
* Sikorsky S-13
* Sikorsky S-14
* Sikorsky S-15
* Sikorsky S-XVI
* Sikorsky S-XVII
* Sikorsky S-XVIII
* Sikorsky S-XIX
* Sikorsky S-XX
* Sikorsky S-XXII
* Sikorsky S-XXIII
* Sikorsky S-XXIV
* Sikorsky S-XXV
* Sikorsky S-XXVI
* Sikorsky S-XXVII
* Sikorsky S-28
* Sikorsky Alexander Nevsky (1916 replacement for the IM)
* Sikorsky Ilya Muromets (a.k.a. Grand or Bolshoi Baltiiski)
* Sikorsky Russky Vityaz

### Sikorsky Aircraft Corporation

(United States)
* Sikorsky BLR-3
* Sikorsky C-6
* Sikorsky C-28
* Sikorsky H-3
* Sikorsky H-5
* Sikorsky H-7
* Sikorsky H-18
* Sikorsky H-19
* Sikorsky H-34
* Sikorsky H-37
* Sikorsky H-38-SI
* Sikorsky H-39
* Sikorsky H-52
* Sikorsky H-53 all variants of the H-53
* Sikorsky H-54
* Sikorsky H-59
* Sikorsky H-60 all variants of the military S-70
* Sikorsky HJS
* Sikorsky HNS
* Sikorsky HO2S
* Sikorsky HO3S
* Sikorsky HO4S
* Sikorsky HO5S
* Sikorsky HRS
* Sikorsky HR2S
* Sikorsky HR2S-1W
* Sikorsky HR3S
* Sikorsky HR3S
* Sikorsky HSS
* Sikorsky HUS
* Sikorsky HU2S
* Sikorsky JRS
* Sikorsky JR2S
* Sikorsky OA-8
* Sikorsky OA-10
* Sikorsky OA-11
* Sikorsky PS-1
* Sikorsky PS-2
* Sikorsky P2S
* Sikorsky PBS
* Sikorsky RS
* Sikorsky R-4
* Sikorsky R-5
* Sikorsky R-6 Hoverfly II
* Sikorsky V-2
* Sikorsky Cypher
* Sikorsky Cypher II
* Sikorsky S-28
* Sikorsky S-29-A
* Sikorsky S-30
* Sikorsky S-31
* Sikorsky S-32
* Sikorsky S-33
* Sikorsky S-34
* Sikorsky S-35
* Sikorsky S-36
* Sikorsky S-37
* Sikorsky S-38
* Sikorsky S-39
* Sikorsky S-40
* Sikorsky S-41
* Sikorsky S-42
* Sikorsky S-43
* Sikorsky S-44
* Sikorsky S-45
* Sikorsky S-50
* Sikorsky S-51
* Sikorsky S-52
* Sikorsky S-53
* Sikorsky S-54
* Sikorsky S-55
* Sikorsky S-57
* Sikorsky S-58
* Sikorsky S-59
* Sikorsky S-60
* Sikorsky S-61
* Sikorsky S-62
* Sikorsky S-63
* Sikorsky S-64
* Sikorsky S-65
* Sikorsky S-67
* Sikorsky S-68
* Sikorsky S-69
* Sikorsky S-70
* Sikorsky S-71
* Sikorsky S-72
* Sikorsky S-75
* Sikorsky S-76
* Sikorsky S-80
* Sikorsky S-92 Helibus
* Sikorsky S-333
* Sikorsky S-434
* Sikorsky SH-3H AEW
* Sikorsky H-92 Superhawk
* Sikorsky RVR Reverse Velocity Rotor
* Sikorsky SS
* Sikorsky Standard
* Sikorsky UH-60 Black Hawk
* Sikorsky UN-4
* Sikorsky Cypher
* Sikorsky CH-148 Cyclone Canadian Armed Forces
* Sikorsky-Boeing SB-1 Defiant
* Sikorsky VH-92

### Silbervogel

* Silbervogel Project Plane

### Silence aircraft

* Silence Twister

### Silent Family

(Silent Family Helmet Grossklaus, Westerrade, Germany)
* Silent Family Silent Glider e-M
* Silent Family Silent Glider M
* Silent Family Silent Glider ME
* Silent Family Silent Racer

### Silesia (First Silesian aircraft factory)

* Silesia S-3
* Silesia S-4
* Silesia S-10

### Silhouette

(Task Research Inc. / Silhouette Aircraft Inc., Santa Paula, California, United States)
* Silhouette Aircraft SA-60 Silhouette

### Silvanskii

(A. V. Silvanskii)
* Silvanskii IS
* Silvanskii I-220

### Silver Wing

(Silver Wing Aircraft Co (founders: Edward Euler, A H Hogue), 28th & Spruce Sts, Boulder, Colorado, United States)
* Silver Wing 1928 Monoplane

### Silvercraft

(Silvercraft SpA, Italy)
* Silvercraft SH-4
* Silvercraft SH-200

### Silverston

* Silverston Milwaukee#2

### Simmering-Graz-Pauker

(Simmering-Graz-Pauker A.G.)
* SGP M-222 Flamingo

### Simmonds Aircraft

(United Kingdom)
* Simmonds Spartan

### Simmons

(Herbert H Simmons, 2111 Franklin St, San Diego, California, United States)
* Simmons Sp-1 Sport Monoplane

### Simonet

* Simonet SHBF Aviette

### Simplex

(Société des Avions Simplex) see:Arnoux

### Simplex

(Simplex Aircraft Co (founders: E J & F W Allen), Defiance, Ohio, United States)
* Simplex K-2-C Red Arrow
* Simplex K-3-C Red Arrow
* Simplex K-2-S Red Arrow
* Simplex W-2-S Red Arrow
* Simplex R-2-D Red Arrow Dual Plane a.k.a. Simplex Racer
* Simplex S-2 Kite
* Simplex Special
* Simplex W-5-C

### Simpson

(F Simpson, Wheeling, West Virginia, United States)
* Simpson Maverick
* Simpson Special

### Simůnek / Kamarýt

(Jan Simůnek MSc / Jaroslav Kamarýt)
* Simůnek / Kamarýt SK-1 Trempík (Trempík – Little Tramp)
* Simůnek VBS-1

### Sindlinger

(Fred G Sindlinger, Puyallup, Washington, United States)
* Sindlinger HH-1
* Sindlinger Special#1

### Sink

(Everett Sink, Zanesville, Ohio, United States)
* Sink S-1

### Sino Swearingen Aircraft Corporation

* Sino Swearingen SJ-30

### Sioux

(Sioux Aircraft Co, Sioux City, Iowa, United States)
* Sioux Coupe 60
* Sioux Coupe 90
* Sioux Coupe 90-A
* Sioux Coupe 90-B Junior
* Sioux Coupe 90-C Senior

### SIPA

(Société Industrielle Pour l'Aéronautique, France)
* SIPA S.10
* SIPA S.11
* SIPA S.111
* SIPA S.12
* SIPA S.121
* SIPA S.20
* SIPA S.30
* SIPA S.50
* SIPA S.70
* SIPA S.90
* SIPA S.901
* SIPA S.902
* SIPA S.903
* SIPA S.904
* SIPA S.91
* SIPA S.92
* SIPA S.93
* SIPA S.94
* SIPA S.200 Minijet
* SIPA S.251 Antilope
* SIPA S.261 Anjou
* SIPA S.262
* SIPA S.300
* SIPA S.1000 Coccinelle
* SIPA S.1100

### Sipowicz

* Sipowicz I

### Sisler

((A M Bert) Sisler Aircraft Co, Bloomington, Minnesota, United States)
* Sisler SF-1 Pipit
* Sisler SF-2 Whistler
* Sisler SF-2A Cygnet

### SITAR

(Sociètè Industrielle de Tolerie pour l'Aéronautique et Matériel Roulant)
* SITAR GY-90 Mowgli
* SITAR GY-100 Bagheera
* SITAR GY-110 Sher Khan

### Sivel Aeronautica

* Sivel SD27 Corriedale
* Sivel SD28

### Six Chuter

(Yakima, Washington, United States)
* Six Chuter SR1
* Six Chuter SR2
* Six Chuter SR5
* Six Chuter SR7
* Six Chuter Power Hawk
* Six Chuter Discovery
* Six Chuter Legend P103UL
* Six Chuter Legend SE
* Six Chuter Legend XL
* Six Chuter Legend XL Paragon 912
* Six Chuter Skye Ryder Aerochute

### Sizer

* Sizer Rosette
* Sizer Sapphire