WMH Timeline

Project High Altitude Research Program (HARP) Cannons Launch Chemical Payloads Into Space

U. S. ARMY MATERIEL COMMAND
BALLISTIC’ RESEARCH LABORATORIES
ABERDEEN PROVING GROUND, MARYLAND

Project High Altitude Research Program (HARP) is dir-!cted toward the use of guns for scientific probing of the tipper atmosphere. The 4 attractive featuresof gunz for this purpose are the basic econourj of such a system and the high inhervnt accuracy of guns for placement at altitude as veil as accuracy in ground impact. The basic liability for such an approach lies in the very high ac-elerations experienced by 0 ran-launched payloads.

The guns used in Project HARP vary in size from 5-inch and 7-inch extended guns on mobile mounts to transportable fixed 16-inch guns. Altitude perforraunce veries from 20 pound , 5-inch rrolectiles ro-aching 0 240,000 feet to 18,-powid, 16-&4nch projectiles reaching 470,000 feet. Single and multiple stage rockets launched from the 16-inch gun have very promising predicted performance and are under development.

Scientific results tt. date Are primarily vind profiles measured by 0 radar chaff, aluminized balloons and parachutes, and tri-methyl-bluz.inum trails, although a numcbr of successful 250 MIz and 1750 r•(z telemetry flightn have been made. Sun sensors, magnctoweters, and temperata.-. sensors have been fl .wn and an electron density sensor vu. fired in early June. Developrent of other active sensors is continuing.

  1. Boyer, E. D., “Five-Inch HARP Tests at Wallops Island, September 1963,” Ballistic Research Laboratories Memorandum Report No. 1532 (AD 430232) January 1964.

  2. Boyer, Eugene D.,“Five-Inch HARP Tests at Barbados, West IndLes, January-February 1966,” Ballistic Research Laboratories Memorandum Report No. 1771 (AD 640438) July 1966.

  3. Boyer, E. D. and MacAllister, L. C., “Seven-Inch HARP Gun Launched Ve.tical Probe System: Initial Development,” Ballistic Research Laboratories Memorandum Report.No. 1770 (AD 640825) July 1966.

  4. Braun, Walter F., “An Inbore Velocity Measuring Probe System for Large Caliber Guns,” Ballistic Research Laboratories Technical Note No. 1610 (AD 637280) April 1966.

  5. Brown, J. A. and Marks, S. T., “Feasibility Test of a Potential Meteorological Shell for the Standard 175 Mim Gun,” Ballistic Research Laboratories Technical Note No. 1584 (AD 631245) February 1966.

  6. Cruickshank, W. J., “High “g” UHF Telemetry for Gun-Launched Sounding Probes,” Ballistic Research Laboratories Memorandum Report No. 1632 (AD 463928) January 1965.

  7. Cruickshank, W. J., “A Feasibility Test of a 1750 Mc/s Telemetry and Tracking System for Five-Inch HARP Projectiles,” Ballistic Research Laboratories Memorandum Report No. 1651 (AD 469653) May 1965.

  8. Evans, J. W., “Evaluation of a Tunnel-Diode Oscillator for Use in Gun Probe Telemetry,” Ballistic Research Laboratories Memorandum Report No. 1711 (AD 631514) November 1965.

  9. Evans, J. W., “Development of Gun Probe Payloads and a 1750 Mc/s Telemetry,” Ballistic Research Laboratories Memorandum Report No. 1749 (AD 637747) May 1966.

  10. Frankle, J. M., “An Interior Ballistic Study of a 24-Inch Gun for Project HARP,” Ballistic Research Laboratories Technical Note No. 1606 (AD 486743) May 1966.

  11. MacAllister, L. C. and Bradley, J. W., “Comments on the Use of Guns to Launch High Altitude Probes,” Ballistic Research Laboratories Memorandum Report No. 1252 (AD 237038) March 1960.

  12. Marks, S. T. and Boyer, E. D. “A Second Test of an Upper Atmosphere Gun Probe System, Ballistic Research Laboratories Memorandum Report No. 1464 (AD 405889) April 1963.

  13. Marks, S. T.* MacAllister, L. C.; Gehring, J. W.; Vitagliano, H. D., and Bentley, B. T., “Feasibility Test of an Upper Atmosphere Gun Probe System,” Ballistic Research Laboratories Memorandum Report No. 1368 (AD 267345) October 1961.

  14. Marks, S. T.; Pilcher, J.O., and Brandon F., “The Development of a High Acceleration Testing Technique for the Electronic Instrumentation of HARP Projectile Systems,” Ballistic Research Laboratories Memora-zbzm Report No. 1738 (AD 635782) March 1966.

  15. Mermagen, W. H., “High “G” Telemetry for Ballistic Range Instrumentation,” Ballistic Research Laboratories Memorandum Report No. 1566 (AD 444246) April 1964.

  16. Mermagen, W. H. “Telemetry Experiments Conducted on the HARP Project in British West Indies and Wallops Island, Virginia During the Period Jan-Mar 1964,” Ballistic Research Laboratories Memorandum Report No. 1576 (AD 449867) July 1964.

  17. Mermagen, W. H., “HARP 250 Mc Telemetry Experiments, Jun-Oct 1964,” Ballistic Research Laboratories Memorandum Report No. 1614 (AD 459576) November 1964.

  18. Mermagen, W. H., “HARP 250 Mc/s Telemetry Experiments, Wallops Island, March 1965,” Ballistic Research Laboratories Memorandum Report No. 1694 (AD 631268) September 1965.

  19. Mermagen, W. H.; Cruickshank, W. J., and Vrataric, F., “VHF and UHF High-G Telemetry Instrumentation for HARP Vehicles,” Ballistic Research Laboratories Memorandum Report No. 1768 (AD 640596) May 1966.

  20. Murphy, C. H.; Bull, Gerald V., and Edwards H. D.,“Upper Atmosphere Winds Measured by Gun-Launched Projectiles,” Ballistic Research Laboratories Memorandum Renort No. 1747 (AD 637850) May 1966.

  21. Murphy C. H., and Bull, G. V., “Review of the High Altitude Research Program (HARP),” Ballistic Research Laboratories Report No. 1327 (AD 645284) July 1966.

Sounding RocketChemical Cannon

References

Media

Sharing is Caring!

Comments

The Environmental Modification Accountability Act of 2018

Our solution is an addendum to the international weather warfare ban requiring two things:
• TRANSPARENCY: a worldwide requirement to give 48 hour notice before modifying or experimenting in our sky or surrounding atmosphere.
• VERIFICATION: create a worldwide citizen-powered sensor network to monitor atmospheric conditions, record video footage of sky conditions, and display atmospheric aerosols in real-time on a publically available website.