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@Dejawolf , @Damian please add @ersakthivel to your ignore lists and vice versa

As suggested before in the LCA thread, use the ignore list. @Dejawolf @Damian @ersakthivel

@ersakthivel please don't post from rubbish sources like dailymailnews - "Englash Newspaper" :rolleyes:

IIRC he's talking about tanks crossing a a large water body where the volume displaced will have a negligible change in the overall water level

Chennaiman wins defence award | Deccan Chronicle

It's a bit more complex. A projectile with Fins does not spin, it uses the viscous property of air to stabilize itself. A Spinning projectile OTOH uses angular momentum See this: Aerodynamic Drag Stabilization vs Gyroscopic Stabilization Large Caliber Ammunition - Types of Projectiles

Source: Israel Defense | An Israeli Shell in an Indian Tank

(yes...it's a late reply) Globalsecurity has a good article on Fin Stabilized and Drag Stabilized projectiles. The Physics is relatively easy to understand Basically, Aerodynamic Drag Stabilization vs Gyroscopic Stabilization Large Caliber Ammunition - Types of Projectiles

Some posts moved to http://defenceforumindia.com/forum/pakistan/17865-how-america-supports-pakistan.html and http://defenceforumindia.com/forum/defence-strategic-issues/33944-armed-forces-vs-bureaucracy.html

This is not a free for all thread. Offtopic posts beyond this point will be deleted

Please restrict comments about Pakistani and Chinese mentality to these threads: http://defenceforumindia.com/forum/pakistan/439-pakistans-ideology-identity-crisis.html http://defenceforumindia.com/forum/china/26737-understanding-china.html

Agreed, thats Physics 101. Fin Stabilization (or drag stabilization ?), takes into account the fact that air is viscous. Fins give extra stability in a fluid, a rotating projectile on the other hand would loose energy quickly. This is probably what methos is trying to convey. Yes, because a...

Okay here is what I understood A projectile from a smooth-bore gun has only linear momentum. Rifling introduces an extra angular momentum. This extra angular momentum coupled with linear momentum makes a rifled gun more accurate. However, maintenance costs of rifled guns outweigh these gains...