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LEGO models my own creation MOCpages toys shop Rotary Gun Turret 4 Barrel 12.5mmTechnic
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Rotary Gun Turret 4 Barrel 12.5mm
Rotary Gun Turret 4 Barrel 12.5mm
About this creation
Visit my Lego helicopters blog

This gun is modeled after the Russian diminutive of the famous American M61 Vulcan 6-barrel rotary gun, which was used in Mil MI-24 battlefield helicopters. The turret has pretty limited arcs of fire (-21..+26 degrees vertically and -30..+30 degrees horizontally), but this was the price to keep it compact. Belt of 12.7mm (0.5in) ammo is modeled with motorcycle chain parts (Note: In Lego Digital Designer, this type of chain cannot be twisted, but it tolerates that pretty well in reality). To save space, I omitted parts of gun behind its rotor (151): bolts, springs, catches, etc. Gun turret can be controlled with joystick from cockpit through laying pushrod (152), which rotates trunnion directly. Training is made by training pushrod (153) rotating training lever (7), which drives training transmission gear (105) through rotating axis of trunnion. Gear (104) rotates training gear of gun (105). Behind fixing hardpoints of turret (154) there is a magazine for belt of 100 rounds (106). Belt is extracted from magazine by extractor gear (155) and received at gun by receiver gear (5), which is driven by gun rotor (151). This type of gun has firing rate of 4000 shots/min in the reality, so it can empty the whole magazine in a 1.5 second-burst, but I had no more space for magazine, and motorcycle chain is not very compact.


Building instructions
Download building instructions (LEGO Digital Designer)

Comments

 I made it 
  September 4, 2012
Quoting Matthew McCall Wow, it's cool to see someone building a whole gun, very cool idea.
You should see my other, 6 barrel rotary gun turret with the working gun I added to Military group recently - This model is just a kindergarten toy compared to that...
 I like it 
  September 4, 2012
Wow, it's cool to see someone building a whole gun, very cool idea.
 I like it 
  August 13, 2012
Excellent work.
 
By Gabor Pauler
Add to my favorite builders

3
people like this. See who.

858 visitors
3 comments
Added August 13, 2012
 


LEGO models my own creation MOCpages toys shop Rotary Gun Turret 4 Barrel 12.5mmTechnic


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