Nike Ajax

Nike Ajax (HM2F9P)

Buy flags at!

N 39° 11.755', W 76° 41.038'

  • 0 check ins
  • 0 favorites

Anti-Aircraft Missile Radar

In the 1950's there were seven batteries of Nike Ajax anti-aircraft missiles located around Baltimore to protect the city, Friendship Airport, and various industrial sites, as well as the Aberdeen ordnance and Edgewood chemical facilities from Russian bombers.

Various Air Force and Navy air-warning net systems would alert the Army Nike site to hostile approaching aircraft.

The Nike-Ajax (Army) was the first operational American surface-to-air missile, SAM-A-7, replacing 90mm and 120 mm anti-aircraft guns of WWII.

This is the antenna of the target tracking radar, MPA-4. Subsequently the missile became a radar "beam rider" and thus could counter target evasive action.

By 1956, eighty Nike-Ajax sites were operating in the U.S.

Prime Contractor: Western Electric
Guidance: Bell Labs
Propulsion: Aerojet-General
Airframe: Douglas

Missile Performance
Speed - Mach 2
Range - 30 miles
Ceiling - 65,000 feet.
HM NumberHM2F9P
Placed ByNational Electronics Museum
Marker ConditionNo reports yet
Date Added Saturday, March 30th, 2019 at 11:02pm PDT -07:00
Sorry, but we don't have a picture of this historical marker yet. If you have a picture, please share it with us. It's simple to do. 1) Become a member. 2) Adopt this historical marker listing. 3) Upload the picture.
Locationbig map
UTM (WGS84 Datum)18S E 354581 N 4339868
Decimal Degrees39.19591667, -76.68396667
Degrees and Decimal MinutesN 39° 11.755', W 76° 41.038'
Degrees, Minutes and Seconds39° 11' 45.3" N, 76° 41' 2.2799999999998" W
Driving DirectionsGoogle Maps
Closest Postal AddressAt or near , ,
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

Is this marker missing? Are the coordinates wrong? Do you have additional information that you would like to share with us? If so, check in.

Nearby Markersshow on map
Check Ins  check in   |    all

Have you seen this marker? If so, check in and tell us about it.

Comments 0 comments

Maintenance Issues
  1. What country is the marker located in?
  2. Is this marker part of a series?
  3. What historical period does the marker represent?
  4. What historical place does the marker represent?
  5. What type of marker is it?
  6. What class is the marker?
  7. What style is the marker?
  8. Does the marker have a number?
  9. What year was the marker erected?
  10. This marker needs at least one picture.
  11. Can this marker be seen from the road?
  12. Is the marker in the median?