Embedded Files
Wind Patterns
Wind Patterns
Various factors have to be taken into consideration for the smooth operation of airships. First of all, there is a need to consider the behavior of wind in the target region. It is optimal to favor calmer winds for easier control and wind-aided directions for less energy consumption and time-sensitive trips.
Wind Speed - Daily Pattern
Wind Speed - Daily Pattern
Daily wind patterns in the target region vary as follows:
Calmest Periods: 9 PM to 6 AM
Light and Gentle Breezes: 6 AM to 9 AM
Gentle and Moderate Breezes: 9 AM to 9 PM
As such, the optimal delivery times would be in the early mornings (6 AM to 9AM) just before the markets open. This timing not only ensures the least wind resistance for travel, but also that the produce is readily available at the markets at the beginning of the day.
Daily Wind Pattern in Arusha
Wind Speed - Monthly Pattern
Wind Speed - Monthly Pattern
Fastest winds in our target area are categorized as Gentle Breezes, almost never going above 19 km/h in a year.
Windiest months are shown to occur between mid April and November.
Monthly Average Wind Speed in Arusha
Wind Direction
Wind Direction
From the figure above, it is shown that majority of wind in our target area originates from the South-East direction flowing towards the North-West. Occasionally, the wind direction originates from the North-East direction flowing towards the South-West.
From the Flight Map, the departure flights from the Points of Surplus (farming regions) to the Point of Need are directed towards the north, west and north-west. As such, the departure trips, which are time-sensitive, are wind aided.
Yearly Wind Direction in Arusha
Daily Required Cargo Weight
Daily Required Cargo Weight
A calculated cargo weight is also essential to provide context on the amount of lift gas to be used in the Solar Ship Inc. airships, potential number of airships needed for each trip and required cargo space.
Approximately 17% of the population in Tanzania are aged 0-5 years old. The population of Nainokanoka is 15606.
Therefore, the estimated population of Nainokanoka below 5 years old is 2653. Using this value and the recommended intake of each nutritional food item for children aged 5 years and below, the total required cargo weight is shown to be 1150.6 kg/day. This value can be rounded up to 1500 kg/day for safety reasons.
Estimated Calculated Cargo Weight for Delivery
Other Important Factors
Other Important Factors
Details
Details
Maximum Temperature
Requirement
Requirement
28 C
Notes
Notes
This temperature is used to determine what the highest likely temperature the cruise ship could reach. An extra 5 C was added as a factor of safety.
Minimum Temperature
8 C
This temperature is used to determine what the lowest likely temperature the cruise ship could reach. An extra 5 C was removed as a factor of safety.
Maximum Daily Temperature Change
18 C
The value is the highest temperature drop that could occur within a day. An extra 5 C was added as a factor of safety.
Cruise Speed
20 km/h
This value varies with severity of winds.
Top Speed
30 km/h
This value varies with severity of winds.
Maximum Predicted Wind Speed
25 km/h
This is usually the highest speed seen during the month of September
Average Wind Speed
8 - 18 km/h
The range is a result of seasonal variation.
Page updated
Report abuse