Helicopter
Flight Crew Commercial; Flight Crew Instrument
Flight Crew Last 90 Days 150; Flight Crew Total 5700; Flight Crew Type 3400
Conflict NMAC; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Took Evasive Action
Human Factors
Departed Boulder Airport around XA:45 on [date] heading to a job 4.5 nm wouthwest of the field. Made my radio calls on departure that I was departing direct to the southwest. Two other aircraft responded their positions.2 nm out of the airport a glider flew over my aircraft from my 4 o'clock position to my 10 o'clock at about 10 ft. directly above me. The glider yelled out over CTAF seconds later 'helicopter that was a near miss'.I responded 'why aren't you making radio calls? You came from my blind side'The glider did not respond.I asked again 'Why no radio calls glider?'Again no response.I left a message with their company and was never able to talk with anyone. I did talk to the airport manager and let him know of the issue.Today on my way into the airport the gliders were again flying in front of other aircraft; including myself. These two instances are the only times I have flown around this airport during midday. And both times the gliders were a big hazard. I understand that they have right of way over powered aircraft but it is very hard to avoid something that you don't know is there. A simple radio call could fix the issue.
Helicopter pilot reported that a glider pilot failed to make radio calls and caused an NMAC.