NIEUPORT

Car rozzer i a Macchi. Varese.176 iTALIAN DIRIGIBLES. | Army. | Navy. | | Name and Date. | P1. 1909. | P2 & P3. 1910 & 1911. | P4 & P5. both 1912. | Citta di Milano 1912. | Parseval. (P.L. 17). 1912-13. | M1. 1912. | M2 & M3. 1912 & 1913. | | Volume | c. feet | 148,000 | 155,000 | 166,000 | 424,000 | 353,000 | 424,000 | 424,000 | | (m³.) | ( 4200 ) | ( 4400 ) | ( 4700 ) | ( 12000 ) | ( 10000 ) | ( 12000 ) | ( 12000 ) | | Length | feet (m.) | 197 (60) | 207 (63) | 207 (63) | 233 (72) | 279 (85) | 272-1/3 (83) | 272-1/3 (83) | | Diameter | feet (m.) | 38 (11.60) | 38 (11.60) | 39-1/3 (12) | 59 (18) | 52-1/2 (16) | 56 (17) | 56 (17) | | Gas bags | fabric | Silk | Continental | Continental |... | Riedinger | Metzeler | Metzeler | | compartments | 7 | 8 | 8 |... | 0 |... |... | | ballonets | 1 | 1 | 1 |... | 2 |... |... | | Lift | total tons | 3.50 | 3.50 | 3.75 |... |... | 9.50 | 9.50 | | useful tons | 1.10 | 1.35 | 1.50 |... | 3.00 | 3.80 | 3.80 | | Motor | h.p. | 1-100 C. Bayard (=100) | 1-120 C. Bayard (=120) | 2-80 Fiat (=160) | 2-85/100 Isotta (=170/200) | 2-170 Maybach (=340) | 2-250 Fiat (=500) | 4-125 Wolseley (=500) | | Propellers | number | 2 | 2 | 2 | 2 | 2 Parseval | 2 | 2 | | blades | 2 | 2 | 2 | 3 | 4 | 4 | 4 | | diameter feet (m.) | 10 (3) | 10 (3) | 10 (3) | 14 (4.20) |... | 12-1/2 (3.80) | 12-1/2 (3.80) | | Max. speed | m.p.h. (km.) | 32 (52) | 35 (56) | 37 (60) | 45 (72) | 40 (65) | 44 (70) | 44 (70) | | Full speed endurance | hrs. |... |... |... |... | 20 | 12 | 12 | | Max. complement | 5 | 5 | 5 |... |... | 14 | 14 | | Station | Braccia no | Tripoli | Vigna di Valle | Baggio | Venice | Braccia no | Notes: All the above are semi-rigid. The P and M are all of the same general type. Principal features of these ships, which were designed by Captains Crocci and Ricaldoni, are the shape of the envelope, (maximum diameter very far forward), keel and the box kite tail. The Citta di Milano (semi-rigid) is an enlarged Leonardo da Vinci (which see). Special feature is the keel built into the envelope. This serves as a nacelle. Building. —One Parseval (P.L. 15) about the same size as the other (P.L. 17), which was completed first.