Algodoo

Nice work but "Value in red box is weight of your object" is not true. The weight of the object in this case is 98 N. I think the 9.8 is the acceleration due to gravity.

Yeah, that´s corret S_noonan but i made it simple for guys that consider this code too complicated, so they don´t need to think about it too much, i will fix it for ya next ime
Plese comment my avro lancaster, i put A LOT of time and experience in that
(and still WIP):
locking wheels > manitou with attachments
flak AA guns are simplier version of actuall guns
bomb bay > bombs
only bay "opening" is used there for first time
Please comment EVERYTHING worth commenting

I had already checked out your Avro Lancaster, because I know you make good scenes, but I typically don't check out, comment, or rate, gun and war machinery scenes. This is mainly due to the USA's aggressive military stance with respect to the rest of the world. At any rate, I found your scene technically excellent and had no problem flying and landing the plane along with operating all of the controls.