the record · glider · Alexander Schleicher ASK 21 · flight page

N421EF

Last heard Wednesday at 1:53 pm, at 5,675 feet at Boulder Municipal. Nothing newer has come from the network since; it may have landed out of the receivers' hearing.

This page checks the country picture for it every minute while it is open.

From BDUBoulder Municipal, Boulder, CO Wednesday at 12:21 pm

To BDUBoulder Municipal, Boulder, CO Wednesday at 1:53 pm

Length: 1 h 32 min
Distance: 26 nm (30 miles)
Top altitude: 7,275 ft
Fastest: 79 knots (91 mph)
Positions heard: 41

The latest flight recorded. Pick another in the list below. Times are local to where the aircraft was.

Line colour: altitude Low 10,000 ft 25,000 ft 40,000 ft Start End

Altitude and speed through the flight

Move along the graph to read the altitude and speed at any moment.

Flights in the last 14 days

When	From	To	Length	Distance	Top altitude	Fastest
Wednesday at 12:21 pm to 1:53 pm	Boulder Municipal BDU	Boulder Municipal BDU	1 h 32 min	26 nm	7,275 ft	79 kt
Wednesday at 10:41 am to 11:37 am	Boulder Municipal BDU	Boulder Municipal BDU	55 min	14 nm	7,175 ft	76 kt
Tuesday at 11:34 am to 2:03 pm	Boulder Municipal BDU	Boulder Municipal BDU	2 h 28 min	45 nm	7,975 ft	72 kt
Friday at 12:52 pm to 2:20 pm	Boulder Municipal BDU	Boulder Municipal BDU	1 h 27 min	46 nm	9,675 ft	77 kt
October 29 at 11:15 am to 12:40 pm	Boulder Municipal BDU	Boulder Municipal BDU	1 h 25 min	39 nm	10,550 ft	77 kt

Show the last 56 days · A flight is a run of positions with no gap longer than twenty minutes; an airport is named when the aircraft was low and within five miles of it at that end.

Positions from the adsb.lol community network (open data). A distance is the sum of the straight lines between the positions heard, so it is a little short of the true track. Positions are kept in full for 7 days and at one point every five minutes after that, for 180 days. Map: OpenFreeMap, OpenMapTiles, OpenStreetMap contributors. For understanding where an aircraft went, not for flying.

The aircraft

Aircraft: Alexander Schleicher ASK 21, built 2013
Kind: Glider, 2 seats
Operator: Soaring Society of Boulder
Registered in: Boulder, CO
Transponder code: A4FFC0

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