
farfedet klaas antarvaahini

irupathaam noottaandinte thudakkathil franch naavikasenaykkaayi gabriel mogas roopakalppana cheytha naalu antharvaahinikal ulppedunnathaanu "farfedet" klaas. mungimaricha apakadatthil rund bottukal nashtappettu. onnaam lokamahaayudham pottippurappedunnathi munbu ivayellaam neekkam cheyyappettu.
roopakalppanayum vivaranavum.
rochefort neval doock yaardile aadyakaala franch antarvaahini enchineeyaraaya gabriel mougaas aanu "farfedettukal" roopakalppana cheythath. farfedettukal" ottathavana valichedukkukayum vaidyutha motorukal maathram pravarthippikkukayum cheythirunnathinaal samakaalika "sairin" klaasumaayi thaarathamyappeduthumbol avayude shreniyum uparithala prakadanavum parimithappedutthunnu. ennirunnaalum avaykku oru reversing enchinte aavasyakatha ozhivaakkunna tharatthil mougaas vikasippichedutha variable-pitch propellerukal undaayirunnu.
sthaanabhramsham sambhavicha antharvaahinikal uparithalathil pathikkukayum vellathinadiyilaakukayum cheythu. avaykku mothatthilulla neelam, oru beam, oru draaft ennivayundaayirunnu. avarkk pravarthanaparamaaya diving aazhamundaayirunnu. avarude samghathil 2 offeesarmaarum 23 perum undaayirunnu.
uparithala oottathinaayi, bottukalkku rund soottar-harley deesal enchinukal undaayirunnu, oronnum oro propeller shaftine oodichu. vellathil mungumbol oro propeller 300 metrik kuthirashakthiyulla electric motor upayogichaanu oodichirunnathu. uparithalathilum vellathinadiyilum paramavadhi vegathayil ethaan avaykku kazhiyum. farfedet" classinu uparithala sahishnutayum vellathinadiyilulla sahishnutayum undaayirunnu.
bottukalkku naalu aantharika torpido tubeukal undaayirunnu, randennam villil, randennam staarnil, athinaayi avar aarr torpidokal vahichirunnu.
sevana charithram.
franch naavikasenayude 1899 leeii nirmmaana padhathiyude bhaagamaayi oordar cheytha "farfedettukal" adutha moonnu varshathinullil rochefortile naavika doock yaardukalil nirmmichu. ennirunnaalum avar sevanathil vijayichilla; 1905 joolaiyil oru diving apakadatthil "farfedet" nashtappettu, 1906 octoberil "luttin". "farfedet" uyarthukayum "follet" aayi punarniyamanam cheyyukayum cheythu, 1911 vare sevanathil thudarnnu, ennaal mattu moonnu kappalukal niraayudheekarikkukayum mattu upayogathilekku parivartthanam cheyyukayum cheythu.

