Lockheed SR-72 Darkstar Flight Manual

Stall Speeds at 10,000':

75% Fuel - 220 KIAS
50-75% Fuel - 195 KIAS
<50% Fuel - 185 KIAS

Stalls are characterized by a lack of nose track, recover by easing the stick forward to "break the stall" and applying full power. If below 0.98M, also apply forward trim to assist in recovering to flying angle of attack.

Though this is an experimental aircraft, envelope expansion has revealed the following G loading data:

300 KIAS at 10,000' - <2.0G turn capability
400 KIAS at 10,000' - 3.0G turn capability
500 KIAS at 10,000' - 5.6G (at 0.95M) turn capability

M0.98 to M1.2 - due to Mach shock wave and flight control transition, the aircraft exhibits a maneuvering "dead spot" with a maximum turn capability of approximately 2.6Gs, which is considered "acceptable". A 4G turn capability was achieved at M1.2.

M1.5 at 10,000' - 5.5G turn capability
M3.0 at 25,000' - 8.0G turn capability

WARNING
Avoid maximum performance turns above M3.0, with may result in airframe overstress and/or loss of aircraft control. Use a combination of trim and precise, deliberate pitch inputs to maintain aircraft control. If aircraft control is lost, reduce throttle to minimum and neutralize the controls.

Flight Profile:

Start:

AG1 to start
AG3 for lights
AG4 for ejection seat
AG8 for canopy
Trim for Trim

Takeoff:

Set trim to 1/2 nose up (one notch down on slider) and apply full throttle. Aircraft should rotate at 215 KIAS and become airborne at 235 KIAS.

NOTE: Military power takeoffs (in place of maximum power) are permissible. Anticipate approximately 50% more runway required for takeoff.

Retract landing gear immediately after takeoff, establish approximately 10-15 degrees nose high, trim forward as aircraft accelerates, initially to 400 KIAS.

Climbout:

Anticipate flight control transition at .98M, with accompanying moderate nose drop. Apply back stick pressure to maintain desired flight attitude. Between 25,000 - 30,000', ease the stick forward to a slight climb (<1 degree nose up).

Stage 2 Ramjet will ignite at M1.5, note movement of the intake ramps.

Stage 3 Scramjet will ignite at M4.0, note movement of the intake ramps.

CAUTION
Remain below approximately 60,000' in order to maintain aircraft control and avoid flying out of the atmosphere at high mach speeds.

WARNING
Maintain level flight when turning and stay below 8Gs, otherwise loss of aircraft control may result. Anticipate a turn rate of approximately 2 degrees per second.

Landing:

Establish a 300 KIAS downwind and final turn. Fly an extended final approach and slow to the following approach speeds:
250 KIAS above 75% fuel remaining
225 KIAS above 50% fuel remaining
200 KIAS at less than 50% fuel remaining
Reduce power to idle on short final and flare to land smoothly.

First of all, thank you @ChiChiWerx Various flight assistants and realism He is responsible for almost all of this. As for me, I started building airplanes. and keep the details of beauty and design

He and I spent over a month developing this airplane. and all the above articles He is the author. I decided not to build a custom landing gear. Because my phone can't do more than this.Alright, have fun!