GLASAIR PILOT REPORTS NOSE LANDING GEAR FAILS TO EXTEND. ALTERNATE METHODS OF GEAR EXTENSION ARE ATTEMPTED WITHOUT SUCCESS. NOSE GEAR UP LANDING ENSUES.

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ON A VFR FLT THE LNDG GEAR EXTENSION SYS FAILED TO DEPLOY THE NOSE GEAR. MULTIPLE ATTEMPTS TO EXTEND THE GEAR BY NORMAL MEANS FAILED. BACKUP SYS WERE ATTEMPTED; INCLUDING MANUAL WOBBLE PUMP AND EMER FREE FALL; BOTH OF WHICH FAILED AS WELL. IN CONTACT WITH TWR OPERATORS; A FLY-BY PASS WAS EXECUTED FOR VISUAL CONFIRMATION OF ACFT CONFIGN; AT WHICH TIME AN EMER WAS DECLARED BY THE TWR PERSONNEL. A VISUAL APCH WAS EXECUTED WITH THE MAIN GEAR EXTENDED AND A LNDG WAS PERFORMED. THE ACFT SLID TO A STOP ON THE RWY WITH THE NOSE GEAR RETRACTED. DAMAGE WAS LIMITED TO THE PROP; SPINNER; AND ENG. NO AIRFRAME DAMAGE OCCURRED. AS PIC; I WAS INTERVIEWED BY CELL PHONE BY THE NTSB. THE EVENT WAS DECLARED BY HIM TO BE AN 'INCIDENT;' AS DEFINED; AND I WAS GIVEN PERMISSION TO RECOVER THE ACFT AT APPROX XA00 LCL; AT WHICH TIME THE ARPT WAS RE-OPENED BY ATC. SUBSEQUENT EXAM REVEALED A DESIGN-INDUCED CLRNC PROB THAT ALLOWED THE NOSE GEAR TO HANG. CORRECTIVE ACTION WILL BE TAKEN TO ELIMINATE THE POSSIBILITY IN THE FUTURE. I AM NOT AWARE OF ANY VIOLATION OF FAR'S OR NORMAL SAFE PRACTICE IN THIS EVENT.