Boosted Arcas is the designation of an American sounding rocket, in which an Arcas rocket<ref name= "Parsch-PWN-6">Andreas Parsch, "PWN-6", Directory of U.S. Military Rockets and Missiles. Retrieved 2018-03-22.</ref> was boosted using a first stage to improve the altitude and payload.
Variants of the Boosted Arcas were Boosted Arcas, Sparrow Arcas, Sidewinder Arcas, and Boosted Arcas II.<ref name= Bollerman-1970>Bruce Bollerman, A Study of 30 km to 200 Km Meteorological Rocket sounding systems, Volume 1, Chapter 6.3.6, "Boosted Arcas,"' NASA Report CR-1529, May 1970, page 311-320. Retrieved 2018-03-22.</ref>
- The Boosted Arcas consists of a first stage of an Atlantic Richfield booster<ref>{{#invoke:citation/CS1|citation
|CitationClass=web }}</ref> using a 0.8-KS-2700 solid propellant engine.<ref name= Bollerman-1970 />
- The Sparrow-Arcas<ref name= Bollerman-1970 /> (or "Sparrow-HV Arcas"<ref name= "Parsch-PWN-6" />) booster was based on the liquid-propellant AIM-7D Sparrow missile as a first stage.
- The Sidewinder-Arcas<ref name= Bollerman-1970 /> (or "Sidewinder-HV Arcas"<ref name= "Parsch-PWN-6" />) used the solid-propellant AIM-9B Sidewinder missile as a first-stage.
- The Boosted Arcas 2 used a MARC 42A1 booster.<ref name= Bollerman-1970 /><ref>{{#invoke:citation/CS1|citation
|CitationClass=web }}</ref>
The maximum altitude of the Boosted Arcas amounts to 50 km, the takeoff thrust 1.00 kN, the diameter 0.11 m and the length 3.40 m. The Boosted Arcas was launched 78 times between 1963 and 1972.