HI observations for look-alike galaxies of four calibrators ?

We present a programme aiming at applying the Tully-Fisher relation for galaxies with the same mor- phological type and the same inclination (look-alike galax- ies or sosie galaxies) as calibrating galaxies. The advantage of sosie galaxies is discussed. In particular, it is shown that using sosies of bright calibrators will allow us to explore the universe deeper and more eciently than the classi- cal TF method applied to dierent morphological types and dierent inclinations. As a preliminary part, we re- port in this paper new HI observations performed with the radiotelescope of Nan cay (France) for sosies of four cali- brators NGC 224, NGC 3031, NGC 253 and NGC 5457. 82 galaxies were detected.