Small aircraft pilot takes evasive action as he sights glider. Believes glider symbol should be on c...

Attributes
ACN	217725
Time
Date	199208
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : 1v5
State Reference	CO
Altitude	msl bound lower : 7500 msl bound upper : 7500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other descent other
Flight Plan	None
Aircraft 2
Make Model Name	Sail Plane
Flight Phase	cruise other descent other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 25 flight time total : 825 flight time type : 350
ASRS Report	217725
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : airborne less severe
Independent Detector	other other : unspecified cockpit
Resolutory Action	flight crew : took evasive action other
Consequence	Other
Miss Distance	horizontal : 1000 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

I was descending into boulder airport traffic pattern from 11500 ft stopping the descent at 7500 ft MSL to fly 'friendly' over the city as recommended. I was about 2 mi east of rapidly rising terrain which also is prime glider lift area. The area I was flying through was glider transition area -- on their way back to boulder airport. Glider came in at my 9 O'clock position and both aircraft took evasive action. Since most lcls know this is high density glider area, I suggest that the glider symbol be added to the TCA and sectional charts in this area so others (like myself) that are based elsewhere can be alerted to their presence.

Original NASA ASRS Text

Title: SMA PLT TAKES EVASIVE ACTION AS HE SIGHTS GLIDER. BELIEVES GLIDER SYMBOL SHOULD BE ON CHARTS.

Narrative: I WAS DSNDING INTO BOULDER ARPT TFC PATTERN FROM 11500 FT STOPPING THE DSCNT AT 7500 FT MSL TO FLY 'FRIENDLY' OVER THE CITY AS RECOMMENDED. I WAS ABOUT 2 MI E OF RAPIDLY RISING TERRAIN WHICH ALSO IS PRIME GLIDER LIFT AREA. THE AREA I WAS FLYING THROUGH WAS GLIDER TRANSITION AREA -- ON THEIR WAY BACK TO BOULDER ARPT. GLIDER CAME IN AT MY 9 O'CLOCK POS AND BOTH ACFT TOOK EVASIVE ACTION. SINCE MOST LCLS KNOW THIS IS HIGH DENSITY GLIDER AREA, I SUGGEST THAT THE GLIDER SYMBOL BE ADDED TO THE TCA AND SECTIONAL CHARTS IN THIS AREA SO OTHERS (LIKE MYSELF) THAT ARE BASED ELSEWHERE CAN BE ALERTED TO THEIR PRESENCE.

Data retrieved from NASA's ASRS site as of July 2007 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.

Small aircraft pilot takes evasive action as he sights glider. Believes glider symbol should be on charts.