Grigorovich M-15
නිෂ්පාදිත රට
Russian Empire
නිෂ්පාදකයාShchetinin
තවම පරිවර්තනය කර නැත — ඉංග්රීසියෙන් පෙන්වයි.
Grigorovich M-15 (alternative designation ShCh M-15 (Russian: Щ М-15), sometimes also Shchetinin M-15) was a successful Russian World War I-era biplane flying boat, developed from the M-9 by Grigorovich.
