The Farfadets were single - hulled , and powered by electric motors only , limiting their range and surface performance compared to the contemporary Sirene class .
The Farfadets were designed by Gabriel Maugas , an early French submarine engineer at the Rochefort Naval Dockyard .
The Farfadets were single - hulled , and powered by electric motors only , limiting Farfadets ' range and surface performance compared to the contemporary Sirene class .
The Farfadets were designed by Gabriel Maugas , an early French submarine engineer at the Rochefort Naval Dockyard .