![[thumbnail balloon]](../pics/strt_t2.gif)
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(This is only a short description of the flight due to lack of time)
Launch: # 4
Launch date: 14-Jan-1996
Launch time: 12:31 UTC
Launch site: 5 miles N of airport Muenster-Osnabrueck (JO32UF)
Payload DLØART/am:
QRG/mod.: (1) Telemetry beacon: 145,200 MHz F2D & F2A
(2) 2nd beacon: 144.987 MHz F1A (call & info text)
(3) Crossband repeater (F3E):
Uplink: 432.575 MHz
Downlink: 144.475 MHz
(4) RX for remote control on 70 cm and 10 m (back up)
Power: (1) 2 W
(2) 100 mW
(3) 2.5 W
Antennas: (1) groundplane
(2) turnstile
(3) big wheels for 2 m and for 70 cm
(4) 70 cm: groundplane / 10 m: lambda/4 vertical
Power supply: (1), (3) & (4): 5 D cells LiSO2 in series (=14.4 V, 6 Ah)
(2) 1 D cell LiSO2 (3 V) and step-up to 9 V
Diameter ballon: ca. 8.5 ft
Gas: hydrogen
Parachute: ca. 6 ft
Weight: 4550 g (over all)
Lift rate: ca. 300 g
The balloon has a gaz valve which can be opened to reduce the lift
rate or start the touchdown procedure.
Schematic of balloon
Talk back of DF teams via 70 cm repeater Osnabrueck, DBØCO (R75).
(UTC)
10:00 ARTOB team meets at Armin's QTH
11:20 arrival at launch site
12:10 filling the balloon
11.55 phone call to DFS (= German FAA)
12:31 LAUNCH
The balloon lifts steadily and drifts to W/NW
14:30 Touchdown of balloon
Tochdown site: near Getelo / Dutch boarder (JO32KM)
Touchdown distance: 47 miles
| Minimum | Maximum | Launch | Touchdown | |
|---|---|---|---|---|
| Altitude (a.s.l.) | 75 ft | 10,185 ft | 170 ft | 75 ft |
| Outside Temperature | 20 deg F | 47 deg F | 38 deg F | 45 deg F |
| Inside Temperature | 49 deg F | 61 deg F | 53 deg F | 57 deg F |
| Battery Voltage | 13,84 V | 14,24 V | 14,17 V | 14,19 V |
If you heard our sigs, pse send QSL via PR / Internet / buro - all will be answered with our DLØART/am QSL cards! Any suggestion or response is always welcome!
Best 73, Oliver
[Oliver Welp, DL9QJ, N3NSF Gustav-Freytag-Str.11 / D-48161 Muenster / GERMANY Internet: dl9qj@amsat.org / n3nsf@amsat.org PR: DL9QJ@DBØEA.#NRW.DEU.EU Tel./Fax: +49-2533-7312]