Aerodynamic characteristics of four NACA airfoil sections designed for helicopter rotor blades

Included in:
Partner(s): UNT Libraries Government Documents Department
Collection(s): National Advisory Committee for Aeronautics Collection | Technical Report Archive and Image Library

2,525 Total Uses. / 77 in the last 33 days.

Item Usage by Month/Year

Year January February March April May June July August September October November December Total
2015 57 57
2014 72 69 89 114 64 72 56 55 56 81 101 101 930
2013 50 85 127 95 63 90 76 89 78 89 108 74 1,024
2012 26 25 29 31 44 43 36 38 60 55 59 59 505
2011 0 0 0 0 0 0 0 0 0 0 0 9 9

Recent Referral Breakdown for the last 33 days (12/22/2014 to 01/24/2015)

Referral Type Total Percentage Graph
Search Engine 74 86% Referrals
Other 9 10%
UNT Digital Library 3 3%
Referral Total Percentage
www.google.com 26 30%
https://www.google.com/
http://www.google.com/blank.html
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=6&ved=0CEMQFjAF&url=http%3A%2F%2Fdigital.library.unt.edu%2Fark%3A%2F67531%2Fmetadc61378%2F&ei=xle3V
www.google.co.in 8 9%
https://www.google.co.in/
www.quazoo.com 7 8%
http://www.quazoo.com/q/Argus_As_II
http://www.quazoo.com/q/Maybach_Mb.IVa
http://www.quazoo.com/q/Aircraft%20piston%20engines%201910%E2%80%931919
http://www.quazoo.com/q/Engine_cooling_systems
http://www.quazoo.com/q/Curtiss%20K-12
http://www.quazoo.com/q/List_of_Shuttle_Carrier_Aircraft_flights
http://www.quazoo.com/q/Mercedes%20D.III
www.google.co.uk 4 4%
http://www.google.co.uk/blank.html
https://www.google.co.uk/
www.google.com.br 4 4%
https://www.google.com.br/
digital.library.unt.edu 3 3%
http://digital.library.unt.edu
http://digital.library.unt.edu/ark:/67531/metadc61378/
www.google.sk 3 3%
https://www.google.sk/
www.google.co.th 3 3%
https://www.google.co.th/
http://www.google.co.th/blank.html
www.google.fr 3 3%
http://www.google.fr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=13&ved=0CGMQFjAM&url=http%3A%2F%2Fdigital.library.unt.edu%2Fark%3A%2F67531%2Fmetadc61378%2Fm1%2F9%2F
http://www.google.fr/imgres?imgurl=http%3A%2F%2Fdigital.library.unt.edu%2Fark%3A%2F67531%2Fmetadc61378%2Fm1%2F18%2Fmed_res%2F&imgrefurl=http%3A%2F%2Fdigital.lib
http://www.google.fr/imgres?imgurl=http%3A%2F%2Fdigital.library.unt.edu%2Fark%3A%2F67531%2Fmetadc61378%2Fm1%2F15%2Fmed_res%2F&imgrefurl=http%3A%2F%2Fdigital.lib
www.bing.com 3 3%
http://www.bing.com/search?q=airfoil+NACA+8H12
http://www.bing.com/search?q=helicopter+props
http://www.bing.com/search?q=jet+rocket+launch+rail
www.google.co.kr 2 2%
https://www.google.co.kr/
www.google.ca 2 2%
https://www.google.ca/
www.snipview.com 2 2%
http://www.snipview.com/q/Space%20launch%20vehicles%20of%20the%20United%20States
http://www.snipview.com/q/Napier_Lion
www.google.hu 2 2%
https://www.google.hu/
www.google.co.id 2 2%
https://www.google.co.id/
www.google.pl 1 1%
https://www.google.pl/
www.google.com.mx 1 1%
http://www.google.com.mx/blank.html
www.google.com.ua 1 1%
https://www.google.com.ua/
www.google.cz 1 1%
https://www.google.cz/
www.google.ee 1 1%
https://www.google.ee/
www.google.com.hk 1 1%
https://www.google.com.hk/
www.google.no 1 1%
https://www.google.no/
www.google.com.tw 1 1%
https://www.google.com.tw/
www.google.pt 1 1%
http://www.google.pt/blank.html
www.google.com.pk 1 1%
https://www.google.com.pk/
cn.bing.com 1 1%
http://cn.bing.com/search?q=aerodynamic+helicopter
www.google.be 1 1%
https://www.google.be/