TEN-DAY AIR-SHIP VOYAGES BY ACTUAL WINDS PREVAILING IN TEN-DAY 



PERIODS 

 Argument : 



Motor-speed proper of dirigible, 12 miles per hour. 



Maximum retardation in adverse winds, 12 miles per hour. 



Allowance made for effect of all winds oblique to the course. 



Start from Spitzbergen (575 miles from North Pole), with first southerly wind on or after — 



July 



Aug. 



1894 



1895 

 1896 

 1804 



E 

 F 

 G 

 H 



Aug. 



1895 



1895 



Winds throughout assumed to be same as at Fram station. 



Wind. 



July 23. 

 N- 2 WbS. 



2— 4 



4— 6 W. 



6— 8 WbS. 



8—10. W. 



10— M SWbW. 



July 24. 



M — 2 WbS. 



2 — 4 



4- 6 



6— S WSW. 



8— 10 WbS. 



10— N 



N— 2 WSW. 



2- 4 WbS. 



4- 6 



6— 8 W. 



8— 10 WbS. 



10 — M " 



July 25. 



M— 2 



2— 4-.... i 



Miles 

 per hour. 



8 



9 

 11 



Q 



8 

 7-5 



6-5 



8 



6-5 



9 



7 



9 

 13 

 10 

 11 

 11 

 10.5 



10 

 9 



Wind help, 

 2 hours. 



Motor. 



4 

 3 

 8 

 2 



5 



10 

 6 

 6 



24 



24 



24 



24 

 24 

 24 



24 

 24 



24 

 24 



24 

 24 

 24 



24 

 24 



24 

 24 



24 



24 



24 



Miles 

 north. 



28 

 29 



24 

 29 



24 

 3i 



27 

 28 



27 



32 

 26 



29 

 34 

 30 

 30 

 24 

 29 

 30 



3° 

 29 



Total 

 northing. 



28 



57 



81 



no- 



134 



165 



192 



220 

 247 

 279 

 305 



334 

 368' 



398- 

 428 



452 

 481 



5ir 



541 

 57o 



Total, 40 hours ; arrive vicinity the Pole. 



July 25. 

 N— 2. 



2—4. 



4- 6. 



6— 8. 



8 — to. 

 10 — M. 

 Julv 26. 

 M — 2. 



2—4. 



4-6. 



6—8. 



8 — 10. 

 10— N. 

 N — 2. 



2—4. 



4-6. 



6— 8. 



Wind. 



SWbS. 

 WbS. 



SW. 

 SWbS. 



SW. 



SWbW. 



SW. 

 SWbW. 



vSW. 

 SWbS. 



SW. 



SWbS. 

 SSW. 



Miles 

 per hour. 



13 

 10 

 11 

 11 

 10 

 12 



15 



14 



13 



12 



12.5 



15 



15 



13-5 



11 



14 



Wind help, 

 2 hours. 



16 



4 

 10 



12 



10 



14 



8 



12 



*5 



20 



15 

 12 



13 

 15 



Motor. 



Miles 

 north. 



Total 

 northing. 



24 

 24 



24 

 24 

 24 



24 



24 

 24 

 24 



24 

 24 

 24 

 24 



24 

 24 



24 



40 

 28 

 34 

 36 

 34 

 36 



34 

 38 

 32 

 36 

 39 

 44 

 39 

 36 

 37 

 39 



40 

 68 

 102 

 138 

 172 

 208 



242 

 280 

 312 



348 

 387 

 43i 

 470 

 506 



543 

 582 



Total, 32 hours ; arrive vicinity the Pole. 



