![File:United Air Lines Link Model C-3 Instrument Flying Trainer, with Dehmel Flight Trainer console (SFO Museum 2017) 02.jpg - Wikimedia Commons File:United Air Lines Link Model C-3 Instrument Flying Trainer, with Dehmel Flight Trainer console (SFO Museum 2017) 02.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/0/00/United_Air_Lines_Link_Model_C-3_Instrument_Flying_Trainer%2C_with_Dehmel_Flight_Trainer_console_%28SFO_Museum_2017%29_02.jpg)
File:United Air Lines Link Model C-3 Instrument Flying Trainer, with Dehmel Flight Trainer console (SFO Museum 2017) 02.jpg - Wikimedia Commons
![File:United Air Lines Link Model C-3 Instrument Flying Trainer, with Dehmel Flight Trainer console (SFO Museum 2017) 01.jpg - Wikimedia Commons File:United Air Lines Link Model C-3 Instrument Flying Trainer, with Dehmel Flight Trainer console (SFO Museum 2017) 01.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/e/e5/United_Air_Lines_Link_Model_C-3_Instrument_Flying_Trainer%2C_with_Dehmel_Flight_Trainer_console_%28SFO_Museum_2017%29_01.jpg)
File:United Air Lines Link Model C-3 Instrument Flying Trainer, with Dehmel Flight Trainer console (SFO Museum 2017) 01.jpg - Wikimedia Commons
![File:United Air Lines Link Model C-3 Instrument Flying Trainer (SFO Museum 2017) 01.jpg - Wikimedia Commons File:United Air Lines Link Model C-3 Instrument Flying Trainer (SFO Museum 2017) 01.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/4/41/United_Air_Lines_Link_Model_C-3_Instrument_Flying_Trainer_%28SFO_Museum_2017%29_01.jpg)