The PROTSEN CP-27 "Copperhead" is a "Final Fantasy: Spirits within" movie tiltrotor military aircraft with both VTOL (vertical takeoff and landing) and STOL (short takeoff and landing) capabilities
(It's supposed to combine both helicopters and fixedwings capabilities, but I failed it miserably, just couldn't get enough thrust and lift with this design).
This is a very plain undetailed model, because this is my second creation (the first one is a very simple but very fun pistons single engine Russian aerobatic Yak-52) and I really don't know how to ornament this beauty.
///// CONTROLS \\\\\
AG1 activates rotor roll, yaw and pitch;
AG2 activates Aero Navigational lights;
AG3 activates Beacon lights;
AG7 activates rotor blades base AoA (angle of attack) configuration;
_______________________________________________________
When AG1 activated:
1. Roll affects rotorblades AoA differently on left and right tiltrotors as well as ailerons;
2. Yaw affects tilt (angle) of nacelles differently on left and right sides as well as rudders;
3. Pitch affects tilt of both tiltrotors as well as elevons;
4. VTOL controls affect tilt of both nacelles equally;
5. Thrust affects rotors spinning;
6. Brakes affects, well, brakes, obviously, and AoA of every rotorblades when AG7 is activated.
///// MANUAL \\\\\
+++PREFLIGHT CHECKS+++
1. Center all of your controls
2. Trim all the way up
3. Activate AG7 and press and hold Brakes to set rotor blades’ AoA to maximum (45 degrees). !!!deactivate AG7 with brakes ACTIVATED/PRESSED!!!
4. Activate AG1 to enable rotor roll, yaw and pitch. (supposed to be deactivated while in FAST horizontal flight, do not deactivate it in this version of aircraft)
5. Activate AG2 and AG3 for navigational lights
You are good to go!
+++TAXING+++
1. Set nacelles angles (VTOL controls) at zero degrees;
2. Release brakes;
3. Increase thrust just a little bit (~30%);
4. Use pitch down to accelerate and pitch up (brakes aswell) to decelerate;
5. Use Yaw to turn.
+++VERTICAL TAKEOFF+++
1. Center your Pitch, Yaw, Roll, VTOL controls (I prefer to keep the brakes holded);
2. Increase thrust up to 85% to slightly rise above the ground (basically a hover mode) or to 90% and more to start climbing. !!!be ready to negate sliding with your pitch, roll, yaw controls. Don’t hit the stick too much.
+++SHORT TAKEOFF+++
1. Center your Pitch, Yaw, Roll, VTOL controls (I prefer to keep the brakes holding);
2. Set your nacelles (VTOL control) to 1 notch up Slowly to avoid wobbling;
3. Increase thrust up to about 60% and release brakes. Be ready to negate sliding with your yaw and roll controls, don’t push too hard;
4. After some acceleration increase thrust up to 90% or above to takeoff.
+++HORISONTAL FLIGHT+++
1. To achieve horizontal flight you must gain horizontal speed and tilt nacelles with your VTOL controls;
2. at low speed or hover mode tilt slowly and incrementally. Negate pitch spikes with pitch controls and NOT with VTOL controls!;
3. Remember! You must find balance between speed and angle of nacelles, rotating it proportionally to speed increases. Hard rotation at low altitude will cause high pitch spikes and more likely a crash;
4. exiting horizontal flight is the same thing but the other way round. Though it can be done more aggressively.
+++Landing+++
1. Vertical landing is pretty self explainable. Hover over desired area (I prefer to keep the brakes holded) and decrease thrust incrementally. Do not drop altitude too fast, maintaining thrust again has a lag;
2. Short landing is acquired with some horizontal speed (not too fast). Exit horizontal flight and maintain nacelles angle at about half a notch up. Release brakes and approach runway like a fixedwing. Slightly decrease speed before landing. Right before touchdown set nacelles angle at zero angle and drop horizontal speed a bit. Be ready to pull down pretty hard. Don’t be afraid of increasing thrust a bit right before touchdown;
3. This is a basic narrations. After experiencing this a few time you can try your own ways of VTOL and STOL.


THANK YOU VERY MUCH for reading all this and downloading this beauty!!!
Feel free to rate and comment. You can modify and upload your versions of this giving credits to my nickname.

Sorry for grammar mistakes (English isn't my native language).