NORTH AMERICAN XB-70 VALKYRIE

Graduating to a new school, lot of homeworks, and dozens of cancelled projects, I've returned (again)

After I found out of how to get access into data folder on Android 13 and above I can use edited thumbnail again.

Origins

In the late 1940's and mid 50's, there were programs to develop nuclear powered aircrafts which expected to have airborne time more than a week (like the Convair NB-36H for an Example), and another concept, not exactly impressive as nuclear powered aircraft, but it was also amazing, at least on paper: And it's the Zip Fuel, where a standard fuel is mixed with some boron which creating 40% more energy dense than conventional fuel. Thus the Strategic Air Command (SAC) asked an aircraft to be fueled with Zip Fuel, had top speed like the Convair B-58 Hustler which is Mach 2.0, intercontinental range and payload capabilities like the Boeing B-52 Stratofortress which is 20 tons (I am referring to the older variants, not the current ones) and atleast 7,000+ km operational range respectively.

There were 2 contractors taking bet of which one of them will get the contract. The first one is Boeing who was already known to be the provider of heavy bomber for more than 3 decades, and our today's hero, the North American Aviation who known for their high speed aircrafts.

The North American proposal, called the WS-110A had 2 ejectable external fuel tanks at each tips of the wings which ejected when the plane gonna go from subsonic to supersonic, had canards, twin vertical stabilizers, and intakes placed on the side of the fuselage. (Boeing proposal did also looks smiliar to NAA's only in difference it had a single horizontal stabilizer and engines under each wings) The plane promised to have speed of Mach 2.0, 23 tons of payload capacity, and combat range of 7.400 km.

The WS-110A

A few months later, a phenomenon was found where shockwaves created at supersonic speed travels below wings, which has potential to increase an aircraft's lift when its directed under the plane. So the NAA team going back to the drawing board and reworking the WS-110A design, and theoretically, the phenomenon increases the aircraft lift atleast by 30%, then the XB-70 (or the B-70 if we dont include the designation for experimental aircraft) was born.

In Game features, systems and controls

The complexity of the plane in real life is also reflected to the game when I made this, which is pain even for a simple things.

Activation Groups

1. Engines
   The 6 engines produced around 230 kN (in real life it is around 120 kN) each, giving the aircraft its .70 TWR at full fuel. I know I know its overkill... in low altitude, but that power really needed at high altitude and speed, because the game's jet engine acts weird at high speed (it stopped changing performance beyond mach 1.5 so I need power), also at 21 km ASL it provides around .20 TWR at 80% fuel.
   
   Stats of the plane at mach 3.0 at 20 km ASL

2. Wingtip
   Ah yes, the icon of the XB-70. The wingtips was record breaking where it was the largest control surfaces ever moved in flight. Its the wingtips that pushes down the shockwaves to produces lift. Sadly, the game doesnt have shockwave yet, so its just worsening the performance of the aircraft if its moved down (I mean by worsening is reducing lift and move the CoL forward). The wingtips has dihedral of 5° of angle, and they were designed to be able to angled down by 25° and 65° of angle. Due to the dihedral, visually they are just angled down by 20° and 60° respectively.
   
   0°, 25°, and 65° respectively
   To change wingtips angle, click AG one time, then your wingtips angle are changed, click AG again and changed, etc. When started at 0° angle, click AG one time and it angled to 25°, click again and it angled to 65°, click again once more it'll angled back to 0°, this is repeated over and over (credit to Boco at JSC for the funk). Anyway, when the wingtips are angled down to 65°, it makes the plane really shaky, banking to here, banking to there etc etc. This phenomenon isnt applied at low altitide, but at high altitude this is a nightmare. Read the instructions below to take handle this.

3. B43 nuclear bombs
   Out there in the land of uncertainity called internet, there are a lot of drawings of what weapons it carried, but most of them are WRONG. There are depictions that the XB-70 carrying a (GAM-87 Skybolt)[https://en.m.wikipedia.org/wiki/GAM-87_Skybolt) inside a weapon bay, but this is false, because the bomb bay are separated into 3 pieces, the rearmost of them is smaller than the other 2. Those bomb bays able to carry standard nukes that used by the USAF, like the B43. In game, the larger 2 bomb bays carry 3 nukes, while the smaller one carry 2 (8 nukes in total). Instead of standard bomb bay doors where they are separated into 2 pieces and opened by angled down, this one have sliding doors which pushes backwards. So this means it only be able to open one bomb bays at a time.
   
   Bomb bays loaded with guided weapons that looks like B43 layout.