To: Select Zone Five
The question is about calculating forces on the wheels so I'm thinking the simplest configuration is most likely.
If the question is about calculating the forces on the wheels then you will have to provide the entire question and all of the information provided in order to solve the problem.
1) In order to calculate the CG of an aircraft it is necessary to weigh it. In the case of the subject aircraft it would require the use of three scales. One under each of the main wheels and one under the tail wheel. This will show the weight distribution of the aircraft or the gravitational force on each wheel. Does the question provide the weight distribution on the three wheels?
2) Does the question entail a downward velocity of the aircraft during landing and does it reference a three-point landing? Any forces during landing are transitory and will vary from impact loads to roll out loads and then to the static loads indicated in 1) above.
3) Does it give the gross weight of the aircraft?
4) If the question implies the distance between the main wheels and the tail wheel and does not provide any other information then it seems to me that it is not a valid question.
But then again I have been wrong before.
