Airline flight crew reported their forward visibility was obscured on takeoff roll and initial climb...

Attributes
ACN	1242879
Time
Date	201502
Local Time Of Day	0601-1200
Place
Locale Reference	ASE.Airport
State Reference	CO
Environment
Flight Conditions	Marginal
Light	Dawn
Aircraft 1
Make Model Name	Medium Large Transport
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Inflight Event / Encounter Other / Unknown

Narrative:

In an effort to comply with [FAA mandate]; we had type iv fluid applied to the upper surface of the fuselage. The fluid obscured the windshield as it flowed forward off the aircraft but cleared with wipers. All was normal until approximately 10-15KIAS prior to V1 speed; the type iv fluid that pooled below the windshield began to flow off the aircraft up over the windscreen obscuring our view of the runway. Visibility for the crew dropped to zero for the remainder of the takeoff roll and climb out. An abort was impossible and the initial climb-out; surrounded by high terrain; was an unacceptable safety risk. The windscreen remained opaque for the first 1-2 minutes of flight.this procedure creates an unacceptable safety risk to our crews; passengers; and aircraft. My recommendation is to immediately discontinue the procedure until a solution and mitigation strategy can be found. As PIC of the flight; the degradation of safety is too great and I cannot comply with the procedure as written.

Original NASA ASRS Text

Title: Airline flight crew reported their forward visibility was obscured on takeoff roll and initial climb when Type IV fluid flowed over the windscreen as their speed increased.

Narrative: In an effort to comply with [FAA mandate]; we had type IV fluid applied to the upper surface of the fuselage. The fluid obscured the windshield as it flowed forward off the aircraft but cleared with wipers. All was normal until approximately 10-15KIAS prior to V1 speed; the type IV fluid that pooled below the windshield began to flow off the aircraft up over the windscreen obscuring our view of the runway. Visibility for the crew dropped to zero for the remainder of the takeoff roll and climb out. An abort was impossible and the initial climb-out; surrounded by high terrain; was an unacceptable safety risk. The windscreen remained opaque for the first 1-2 minutes of flight.This procedure creates an unacceptable safety risk to our crews; passengers; and aircraft. My recommendation is to immediately discontinue the procedure until a solution and mitigation strategy can be found. As PIC of the flight; the degradation of safety is too great and I cannot comply with the procedure as written.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Airline flight crew reported their forward visibility was obscured on takeoff roll and initial climb when type iv fluid flowed over the windscreen as their speed increased.