blackshire
02-23-2011, 12:21 AM
Hello All,
I have a question about the MGR-3A Little John un-guided artillery rocket, *not* the delta-finned XM47 test version that Estes and other model rocket companies have depicted in scale kits, but the operational version that had small, long-chord rectangular fins.
Has anyone ever built and flown scale models of the XM51 (MGR-3A) rectangular-finned version? The reason why I ask is because the full-scale rocket was spun on its launcher at 3.5 revolutions per second before firing, and I was wondering if any flying scale models of it also had to be spun at launch (or equipped with a *lot* of nose ballast if not spun) in order to fly stably. Below are links to photographs and information on the Little John:
http://www.postwarv2.com/littleJohn/photos.html
http://sill-www.army.mil/FAMAG/1960/JUL_1960/JUL_1960_PAGES_20_25.pdf
http://www.redstone.army.mil/history/systems/LITTLEJOHN.html
http://travel.webshots.com/photo/2102633380042020642IxzOzM
I hope this material will be useful.
I have a question about the MGR-3A Little John un-guided artillery rocket, *not* the delta-finned XM47 test version that Estes and other model rocket companies have depicted in scale kits, but the operational version that had small, long-chord rectangular fins.
Has anyone ever built and flown scale models of the XM51 (MGR-3A) rectangular-finned version? The reason why I ask is because the full-scale rocket was spun on its launcher at 3.5 revolutions per second before firing, and I was wondering if any flying scale models of it also had to be spun at launch (or equipped with a *lot* of nose ballast if not spun) in order to fly stably. Below are links to photographs and information on the Little John:
http://www.postwarv2.com/littleJohn/photos.html
http://sill-www.army.mil/FAMAG/1960/JUL_1960/JUL_1960_PAGES_20_25.pdf
http://www.redstone.army.mil/history/systems/LITTLEJOHN.html
http://travel.webshots.com/photo/2102633380042020642IxzOzM
I hope this material will be useful.