1942 Sēremōnaþ: Hēr se Bryttisca Experimental Submarine Flotilla ēode tō ""Port D"" þe wæs on Eiríksfjorðe in Scotlande. and hīe gefengon hira ǣrestan rīdungfȳrramm þe hæfde scufend, and hit wæs þæs cynnes ""Mark I Chariot"", and miht faran 2.9 scipmīl in stunde, and miht unplēolīce dȳfan twentig fēt under sǣ, and his līc wæs 21 yncas wīd, and his frumstemn bær 600 pund utberstendes. Sēo tǣcung wæs heard, and þurh þā plēo dȳfunge mid ungemiscodum oxygene and sēo ellorlīcnesse þāra rīdungfȳrramma oft wæs geswōgung and fyllewærc under sǣ, for þǣm þe se oxygen wierþþ ator æt þritig-gerīme fōta under wætere. Oft wæs lǣssa hearm swā eara tunnebotma berstung and hearm in hira holum in heafde þe hātte sinus. and man tōhton hīe aran and stīeran lange under wætere and æfter þǣm þe ceorfan þurh werungnett hȳða. and wæs heardost lǣran weorcan mid þǣm fȳrramma gūðhēadfum.<!—what is this sentence trying to say?-->