No, effettivamente non ho capito il problema. Come doveva comportarsi il braccio degli astronauti, secondo te?

A me l'unica cosa anomala sembra la posizione sollevata, che non è una postura normale né comoda in circostanze normali, ma quella è una tuta relativamente rigida e pressurizzata in un'ambiente a bassa gravità, per cui immagino che possa sostenere un avambraccio lasciato "a peso morto" al suo interno.

Non ne ho idea, ma prima di ragionarci su vorrei la fonte di quest'informazione.

The first cost-plus-incentive-fee contract to Boeing was for $19,000,000 and called for delivery of the first LRV by 1 April 1971. Cost overruns, however, led to a final cost of $38,000,000, which was about the same as NASA's original estimate. Four lunar rovers were built, one each for Apollo missions 15, 16, and 17; and one used for spare parts after the cancellation of further Apollo missions. Other LRV models were built: a static model to assist with human factors design; an engineering model to design and integrate the subsystems; two one-sixth gravity models for testing the deployment mechanism; a one-gravity trainer to give the astronauts instruction in the operation of the rover and allow them to practice driving it; a mass model to test the effect of the rover on the LM structure, balance, and handling; a vibration test unit to study the LRV's durability and handling of launch stresses; and a qualification test unit to study integration of all LRV subsystems.