Transcribe
Translate
James A. Van Allen journal, December 1954-October 1955
Page 168
More information
digital collection
archival collection guide
transcription tips
Yardney silver cells 45 watt hours per lb. Therefore, Silver cells = [ Nat. Fabs S?] for a 90 hour range ~ 3 1/2 days. ---------------- In addition will probably need batteries with solar cells to stabilize voltage and some sort of optical system. ---------------- For a one week flight solar batteries may not be worthwhile ! Better to work on ways of saving power by intermittent operation of T.M. [transmitter?] system, use of low drain tubes etc. ￣￣￣￣￣￣￣ For 5 watt radiated power : E = (6.7) ((sin [O? 0? theta?])/(R {meter})) (square root of (W {watts})) volts/meter
Saving...
prev
next
Yardney silver cells 45 watt hours per lb. Therefore, Silver cells = [ Nat. Fabs S?] for a 90 hour range ~ 3 1/2 days. ---------------- In addition will probably need batteries with solar cells to stabilize voltage and some sort of optical system. ---------------- For a one week flight solar batteries may not be worthwhile ! Better to work on ways of saving power by intermittent operation of T.M. [transmitter?] system, use of low drain tubes etc. ￣￣￣￣￣￣￣ For 5 watt radiated power : E = (6.7) ((sin [O? 0? theta?])/(R {meter})) (square root of (W {watts})) volts/meter
Van Allen Papers
sidebar
