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Rockoons Long Duration Flight SL1 Rocket and Avionics Sky Launch 1 Rocket and Avionics Rockoon Mission Rockoon Flight Profile Mobile rocket motor test stand Nitrous Oxide/rubber Hybrid Motor 1500 lbf Thrust Test Balloon Testing High Altitude Subsystem Testing

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Presentation Transcript
sl1 rocket and avionics
SL1 Rocket and Avionics

Sky Launch 1 Rocket and Avionics

balloon testing
Balloon Testing

High Altitude Subsystem Testing

Telemetry and command/control link testing with latex balloons

Zero pressure plastic balloon tests of igniter electronics and nitrous tank

rocket ground test
Rocket ground test

Ground Launch of Hybrid Rocket

Rocket ascended to over 20,000 feet

sl1 launch
SL1 Launch

Launch of Sky Launch 1 Rockoon

Rocket ascended to over 30 nautical miles

launched from the north carolina shoreline
Launched from the North Carolina Shoreline

Rocket ignited at 70k plus feet while 120 miles out to sea

sl1 rocket
SL1 rocket

Rockoon Rocket That Made Guinness Book of World Records

Apogee: 36 miles; 14 miles short of our goal.

Record stood for 7 years until broken by CSXT rocket in 2004.

sl2 on deck
SL2 on deck

Moving up to larger Sky Launch 2

  • 100 miles from shore in the Gulf of Mexico
  • Sea-launch, like those pioneered by Dr. Van Allen
  • Sea launch greatly reduces risk and liability concerns
  • NASA provided use of ocean-going barge for our first test
  • Ability to reel the balloon straight up vertically out of the box
  • Minimal boat deck area required for medium to large sized balloons
  • Boat speed completely cancelled out surface wind
cats prize
CATS Prize

The Cheap Access To Space (CATS) Competition was established in 1997.

Goal: First non-governmental rocket to put 2 kg to an apogee of 200 km by November 8, 2000.

Our CATS rocket was launched 200 miles out to sea off the Florida coast on October 29, 2000.

cats rocket on it s way
CATS Rocket on it’s way
  • Rocket launched from 75k ft
  • Additional Advantages of Boat Launched balloons:
  • Hazardous Payloads can be flown that would be difficult to fly over land.
  • Greatly increased launch windows due to surface wind cancellation
  • Ability to fly from remote locations without need of land-based ground support
come on up the view is great
Come on up, the view is great!
  • 100,000 feet high, 400 miles to the horizon
long duration balloons
Long Duration Balloons
  • Polyethylene Zero Pressure
  • If vented, can stay aloft at float altitude for several days with ballast drop each night
  • Expensive to buy
  • - Difficult to make
long duration balloons28
Long Duration Balloons
  • Cylinder Balloon (helium or hydrogen filled)
  • Vent at bottom, can stay aloft several days with ballast drop each night
  • Relatively easy to make with a heat sealer

WB8ELK launch of ES-OS cylinder balloon built by NG0X

solar balloons only hot air one day flight
Solar Balloons– only Hot Air(one day flight)
  • Can be assembled with Scotch Tape
  • - Inflated with a fan
  • Sun does the rest
  • Can stay at float altitude all day long until sunset
  • Tetroon only takes 3 seams and approximates a sphere

KC8UCH

http://mail.gpacademy.org/~rochter/

Solar Tetroon and Cylinder

http://www.solar-balloons.com

long duration floater flights
Long Duration floater flights
  • LATEX Floaters
  • Vent valve in balloon neck
  • Ballast drop
  • - Several hours to 20+ hrs
  • UV degradation of latex will limit time aloft when sunlit
  • Low-tech idea proven out by Dr. Jean Laby:
  • ( tie string to top of balloon to lift ping-pong style valve in balloon neck)
long duration floater flights31
Long Duration floater flights
  • No vent valve
  • No ballast
  • 20 plus hour flights
  • Standard latex balloons
  • Low free lift
  • Released a few hours before sunset
  • Ascent stops at balloon sunset
  • HiBall Launch Video
launched from huntsville al 1400 miles downrange in 20 hours
Launched from Huntsville, AL1400 miles downrange in 20 hours

Green = Daytime portion Violet = Nighttime portion

long duration floater flights35
Long Duration floater flights

Using READY HYSPLIT to predict flight paths for multi-day missions

- Registration required by FAXing in request on your group’s letterhead

- Once registered, can do long range forecasts at various float altitudes

- Can run archived data without registration

long duration floater flights36
Long Duration floater flights

JANUARY Flight Paths

(72 hours aloft)

Float altitudes:

Red – 45,000 feet

Blue – 60,000 feet

Green – 75,000 feet

long duration floater flights37
Long Duration floater flights

MARCH Flight Paths

(72 hours aloft)

Float altitudes:

Red – 45,000 feet

Blue – 60,000 feet

Green – 75,000 feet

long duration floater flights38
Long Duration floater flights

JULY Flight Paths

(72 hours aloft)

Float altitudes:

Red – 45,000 feet

Blue – 60,000 feet

Green – 75,000 feet

long duration floater flights39
Long Duration floater flights

OCTOBER Flight Paths

(72 hours aloft)

Float altitudes:

Red – 45,000 feet

Blue – 60,000 feet

Green – 75,000 feet

long duration floater flights40
Long Duration floater flights

NOVEMBER Flight Paths

(72 hours aloft)

Float altitudes:

Red – 45,000 feet

Blue – 60,000 feet

Green – 75,000 feet

20 th anniversary of arhab amateur radio high altitude ballooning
20th Anniversary of ARHAB(Amateur Radio High Altitude Ballooning)

August 11, 2007

Findlay, Ohio

Multiple Launches

http://www.wb8elk.com

Great Plains Superlaunch Conference and Launch

Grand Island, NE

July 6-8, 2007

Conference and Multiple launch

http://www.superlaunch.org

the future of balloon technology
The Future of Balloon Technology?

Launch Video

http://www.wb8elk.com