An even more telling sign that they are two different vehicles would be the placement of the spare road wheel on the rear.
One other thing are you sure these pics are real, cuase that weathering looks way over the top [:-^][:-,]
Thanks for all the input guys! Really helped! I’m just now posting a WIP of this bad boy.[:)]
LOL! The crew should really tone that down a bit![(-D]
Some key stats on the 8.8cm Pak 43/1 L/71 mounted on the Nashorn from PT 7-3:
Elevation: -5, +20 degrees
Traverse: 30 degrees (15L, 15R)
Gunsight graduated out to 4000m for the PzGr (armor piercing) rounds.
HTH!
That’d be 2.4 miles for any not familiar with km/m conversion…
OK then… Gino or Mike, would it stand to reason that 8 or 9 degrees would get you out about 1 mile?
OK…+5.02 degrees or 89.24 mils
Rounds Complete!!
For those of you trying to figure it out…4,000m = 2.48 miles. 1 mile is 40.2% of the max range. Since this is a gun and we will assume a flat uniform trajectory. The total elevation span is 25 degrees thus .402 x 25 = 10.2 minus 5 for the -5 min elevation = 5.02. There is 17.77 mils per degree (measurement used in artillery) thus 5.02 x 17.77 = 89.24…SHHHHH don’t tell Marc
Tell me what[%-)]
You used degrees. Arty guys - redleg and gino, and mortar guys - me (and military guys in general) use mils. [8D]
11H -put crosshairs on target… press fire button…keep crosshairs on target until missile impacts… no math required [swg]
11H?? Antitank gunner? Dragons? TOWS?
Boyd - Being PC I gave it to them both ways (the wrong way and right way [;)])
For the non-militiary in the group…angle meausrement used in artillery are in mils…there is 6,400 mils in a circle. I lends to more accurate angle measurement!!
Rounds Complete!!
True…same for the old 88, it was more of a direct fire weapon (what you can see). He looked through a sight and put his crosshairs on something a mile away…but what elevation was the gun at then…see above
Math usage is only when you really want to put the bullet through the bathroom window at 20,000M. AHHH…the sound of outgoing…PSGGB
Rounds Complete!!
[:D] Thanks for all the help guys! I was wondering if I could keep the gun flat and I got basic training on artillery! Learn something new everyday I guess. Thanks again for the help guys, it’s been really informative! I can use this tread for half my builds. [tup]
While somewhat on the subject [:-^] Did the nashorn fire concrete piercing rounds, and if so, what did they look like? I’d like to have it firing those if possible. Thanks…
actually the 88 will go alot further than the numbers listed. All artillary projectiles travel on a parabolic curve (the same one you used in the second semister of algebra). Knowing the velocity and weight of the projectile with a generic ballistic coefficent (note the round is not flat nosed or extremely short) as well as the correct number to factor in the gravitational effects you can plot the curve as well as distance and time of travel. It’s all done on computers now, but in the old days it was done with a slide rule. This is also how they figure what powder charge to use and time setting on the fuse. Now the photos show the barrel pretty much level and I saw no aiming stakes. This tells me the guys were shooting direct fire. But even shooting direct fire takes some adjustments other than putting the cross hairs on the target. Under a thousand yards the round will be hitting a little high (actually closer to 2000 yards). This is caused by the rotational spin and velocity over comming the 6200 factor for gravitation pull. Once the lines cross each other on the graph the bullet will start falling towards earth.
gary
Gary is absolutly correct. I was not going in that kind of ballistic detial but his explanation tells you why the gun goes to -5 elevation. For greater detail consult FM-6-40
For my answer above, I made the assumtion of flat trajectory, constant velocity and a fixed charge. This would make the elevation increments linear.
Reality is noting is linear but at the elevation I gave you are damm close.
Rounds Complete!!
Bear in mind that the 88 on the Nashorn had one-piece ammunition with fixed charges for the various rounds. The reason the gun-sight was only graduated out to 4000m for AP rounds was because this was a panzerjager and its primary role was as a direct-fire AT platform and the 88 was an excellent long-range weapon in the wide-open spaces of the Russian front. [;)] It was not designed to be a bunker-buster although it can and did fire HE rounds among other types…but I’ve not seen any mention of concrete-piercing ammunition used with this particular weapon.
actually I sorta discovered this when I was very young, and bore sighting suspected mortar pits about 1000 yards out on a ridge line. We did the string method, and the rounds kept going a little high. So we had to lower the barrel to shoot below the target. Next day we re-registered the howitzer (155mm) thinking something was outta wack. That afternoon we went after the same set of targets again with the same results. The BC happened to have an engineering degree, and he tried to explain this as easy as he could. But still didn’t completely grasp it all till I studied physics. Knowing what I know now; we’d have simply dropped down one powder charge
gary
as good as the “88” was, it still was a little light for busting re-enforced bunker complexes. The weight just wasn’t there to create the mass needed for that stuff. But on the otherhand it had velocity with a round that weight somewhere around 30lb… Making it shoot fairly flat, but once again not completely flat. The powder charges were fixed, and you’ll probably find that all the different rounds shot a similar trajectory (note: the different projectiles may weigh differently, so the powder charges are adjusted to keep the parabolic curve similar). With that in mind the gun sight is then graduated to match the trajectory of the round. That way if the target is 2000 yards; they simply adjust the sight for the 2000 yard mark. Also somewhere in the curve there is what is known as a point blank range. This is where the round will be good enough for a series of different yardages (say 500 yards to 1500 yards)
gary