Robert Horton and Ross Horton are accused of endangering or distracting the pilots of the aircrafts.
The pair appeared before Leeds Crown Court today (November 27) where the entered not guilty pleas.
Both defendants are accused of three counts of shining a laser beam towards an aircraft on May 16 this year.
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The first two counts relate to Ryanair planes.
Count three is in relation to the West Yorkshire Police helicopter.
They are accused of directing a laser beam towards an aircraft which "endangered or distracted the person in control of that vehicle."
Robert Horton, 31, of Rookhill Road, Chequerfield, Pontefract, and Ross Horton, 18, of Farm Road, Featherstone, will go on trial on November 5 next year.
The trial is expected to last one day.
Both defendants were granted unconditional bail until the trial.