Building the V2

[JimWesterfield]

I am interested in building each of the rockets in the US space program starting with the V2.

The tech specs I am basing them on is attached. So the question is one of scale. Has anyone crunched the math to figure out how this scales for Kerbin?

Specifications

Weight 12,500 kg (28,000 lb)

Length 14 m (45 ft 11 in)

Diameter 1.65 m (5 ft 5 in)

Warhead 1,000 kg (2,200 lb) Amatol

Wingspan 3.56 m (11 ft 8 in)

Propellant 3,810 kg (8,400 lb) of 75% ethanol and 25% water + 4,910 kg (10,800 lb) of liquid oxygen

Operational

range 320 km (200 mi)

Flight altitude 88 km (55 mi) maximum altitude on long range trajectory, 206 km (128 mi) maximum altitude if launched vertically.

Speed maximum:

1,600 m/s (5,200 ft/s)

5,760 km/h (3,580 mph)

at impact:

800 m/s (2,600 ft/s)

2,880 km/h (1,790 mph)

Guidance

system Gyroscopes to determine direction

Müller-type pendulous gyroscopic accelerometer for engine cutoff on most production rockets (10% of the Mittelwerk rockets used a guide beam for cutoff.)[2]:225

Launch

platform Mobile (Meillerwagen)

[lpam]

Dimensions on Kerbin are 64% of real life size. As for vehicle mass, engine power and Isp; I think it is a case of trial and error to match real world performance; for example mass to LEO. In the case of the V1, try to get the maximum altitude close to 206km.

Hope that helps.

[stupid_chris]

The widely accepted scale down for KSP is 64%. So Just scale down your heights and width by 64% then adjust the fuel and engine power to match the speeds.

But the V2 wasn't an American rocket... it was German and it was used during the WWII...

[Guest]

The widely accepted scale down for KSP is 64%. So Just scale down your heights and width by 64% then adjust the fuel and engine power to match the speeds.

But the V2 wasn't an American rocket... it was German and it was used during the WWII...

Captured V-2's (or as the Germans knew them, A-4's) were used by the fledgling American space program for a variety of experimentation and testing at the White Sands Missile Range after WWII. So yes, it is accurate to count V-2's among the US space program's earliest rockets.

[stupid_chris]

Captured V-2's (or as the Germans knew them, A-4's) were used by the fledgling American space program for a variety of experimentation and testing at the White Sands Missile Range after WWII. So yes, it is accurate to count V-2's among the US space program's earliest rockets.

Didn't know that! the more you know ^^