John Nance - Orbit

Technically he’s still in space, just nowhere near high enough or fast enough to stay there any longer.

Kip checks the descent speed. Two hundred sixty feet per second. He sees the target dot on the ADI, attitude deviation indicator, blinking red as it starts moving down. He moves the sidestick controller to follow, startled when the Earth swims back into view. Intrepid ’s nose changes pitch from near vertical through the horizontal and continues downward to twenty degrees below the horizon. He wants to look at the surface below and try to figure out where he is, but his eyes have to stay riveted on the ADI until he feels the ship stabilize. Funny how suddenly it seems so easy, and just a few days ago he’d been spinning out of control like a crazed gyro.

The steadiness of the ship now that the engine is quiet is almost unnerving, and he remembers to consult the checklist Velcroed to his knee before reconfiguring the space plane and raising the tail structure to keep down the speed of reentry. Instead of his finger shaking like before as he points it at the next section of the reentry checklist, his hand is now steady, and his index finger tracks the next few steps as he reads through the verbiage, and triggers a small hydraulic pump.

A tiny whine akin to an energetic mosquito begins complaining from somewhere aft, confirming its operation. Lights illuminate on the forward panel and a series of lighted pushbuttons that control the process of feathering the ship light up as well. He pushes them in sequence, checking and rechecking each step and feeling the change in the tail structure as the twin-boomed empennage begins to rise to a nearly eighty-degree upward deflection.

Kip recalls the explanation almost verbatim: “As the air molecules begin to flash past, the tail will align vertically, leaving the body almost horizontal into the relative wind, the tremendous drag keeping the speed from building too high. Like a shuttlecock,” the instructor had added, sending Kip to the dictionary only to discover that “shuttlecock” essentially meant the same thing as “badminton birdie.”

Four hundred thousand feet… eighty miles, Kip thinks, the upper beginning of the atmosphere.

His gaze takes in the horizon once again as he uses the sidestick to bring the nose up, stopping at ten degrees down.

Speed is what? Okay, five hundred twenty knots and accelerating.

In less than five minutes, Intrepid ’s heat-coated belly will peak at a temperature of just over a thousand degrees Fahrenheit—as long as he holds the right attitude. He thinks he can feel the molecules of air beginning to impact the fuselage, even though Intrepid ’s relative, indicated airspeed is still not even registering. But the true speed through the near vacuum around him is now just under twelve hundred miles per hour.

The curvature of the Earth is still pronounced, the darkness of space beyond still stark and amazing, and he realizes he’s seeing the same view as those who ride suborbitally to the same height.

Three hundred fifty-one thousand!

The ship seems to be moving ever so slightly now, not unlike an airplane in stable flight, but he knows the motion will increase along with the sound of the high-speed air impacting his fuselage.

Where am I? The question now becomes urgent. He cranes his neck to see better through the forward windscreen, looking for anything identifiable. The map display should be showing what he’s over, but for some reason it’s switched to some diagnostic screen and Kip punches first one, then another of the buttons around the perimeter to get the map back.

Oh my God, the seat!

He’s almost forgotten to reposition it, rotating the bottom upward and leaning it back in accordance with the checklist and tightening his seat and shoulder harness against the five-g peak deceleration to come.

The thought of Bill Campbell’s lightly restrained body behind him suddenly flashes in his consciousness. Only small Velcro straps are holding the plastic bag to the back bulkhead, and up to now all the deceleration has been backward. But when the real atmospheric braking starts, the body will tumble forward, and he wonders how to secure it.

He could strap it into his passenger seat close behind, but it’s too late to get out of the harnesses. The thought of the body crashing forward and into his hand on the control stick worries him, but he’ll deal with it when, and if.

Three hundred five thousand, velocity twenty-four hundred feet per second… sixteen hundred miles per hour straight down!

He can see a line of snow-covered mountains far below, and as he looks north, one of them resembles Pikes Peak and he wonders if he’s coming down in the middle of New Mexico’s Sangre de Cristo range.

But when he looks more closely, he realizes Colorado is apparently much farther north.

He could twist the sidestick controller around and yaw left or right to see better, but he’s afraid of disobeying the V on the ADI in front of him and he stifles the need. He’ll wait until Intrepid is an aircraft again with the tail aligned before looking for airfields.

A hint of slipstream noise is becoming more pronounced, a clear rising protest of assaulted atoms of nitrogen and oxygen shoved aside by a bow wave, a supersonic bow wave, as he descends below three hundred thousand feet, no longer in space but clearly still in the far upper reaches of the atmosphere. The speed is fairly steady now, just under Mach 3, and the indicated airspeed has begun to move upward in single digits.

A red symbol has begun blinking urgently on the forward display and Kip leans forward to read it.

He understands. The twin tail booms are in the up position for reentry, yet the left one is not locked, and the increasing pressure of the airflow is trying to force it down. If that happens, he’ll start spinning and speeding up until either the gyroscopic forces or the overheating kills him.

Kip pulls the other checklist to his lap from its storage slot and pages through, amazed that he isn’t frantic. He flips to the section covering major emergencies and locates the one labeled “Strut Up-latch Unsafe Warning during Reentry.” The first step is to verify the hydraulic pump is still on, and he looks at the appropriate part of the panel.

The switch is on. But the pressure is zero, indicating the pump has failed.

Ever so slowly, as he looks at the horizon, Intrepid begins to rotate to the left.

There is a manual procedure, Kip sees, listed in the text, and at first it confuses him. Apparently a cable of some sort can be pulled to secure the up-latch, but the g-forces have already begun to build, and, as the gyration to the left begins to become noticeable, the reentry deceleration force is progressively raising the weight of the arm he has to use to open a panel he’s never seen beneath his left leg.

The fact that in less than a minute he’ll be pinned to the command seat by upward of five g’s registers, and Kip snaps off his seat belt and shoulder harness and dives forward, his hand scrambling around the lower left kick panel, finding several different recessed latches. He struggles to peer over the edge of the seat and read the verbiage on each of them, holding on to the checklist with his right hand. Constant control of the sidestick is unnecessary during this phase, he was told, and he hopes he’s remembered that correctly. The aerodynamic forces are now gripping Intrepid, and the flipped-up twin booms of the tail are the only thing keeping the space plane correctly aligned.