- Bezeichnung: Beschleunigungsmesser BM 4
- Anforderungszeichen: Fl.22802
- gerät-Nr.: 127-172 A-1
- Baumuster: BM 4
- Messbereich: -4g / +8g
- Hersteller: Maximall-Apparate-Fabrik, Paul Willmann, Berlin
- Baujahr: ca. 1943
- Eingebaut in: Versuchsflugzeugen (Erprobung, Testflüge)
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