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White Knight Two Flight Test Summaries


The following list includes summaries of the flight test activity of the White Knight Two (WK2) aircraft. White Knight Two is the mothership/ launch aircraft for SpaceShipTwo (SS2) and potentially other large payloads. It is equipped with many common system components to SS2 (cabin, ECS, speed-brake actuators, avionics, trim servos, air data, test data, video & TM). Thus, the flight test program of WK2 includes many tests that focus on SS2 systems qualification and maturity.

Rocket Motor Two Fire Log


Flight: 01
Date: 21 Dec 08
Flight Time: 1 hour
Pilot: Siebold Copilot: Nichols
FTE: None        
Objectives:        
First flight. Qualitative assessment of stability & controls to facilitate a safe landing.
Results:
Objective achieved. Gear down envelope to 110ktas. Max altitude 18,000ft. " Beautiful airplane to fly".

Flight: 02
Date: 4 Feb 09
Flight Time: 1.5 hours
Pilot: Siebold Copilot: Nichols
FTE: None        
Objectives:        
Envelope expansion.
Results:
Objectives achieved. Gear down speed expansion to 130ktas, max 1.5g, and max altitude of 18,000 ft.

Flight: 03
Date: 25 Mar 09
Flight Time: 2 hrs 20 mins
Pilot: Siebold Copilot: Nichols
FTE: None        
Objectives:        
Envelope expansion. Landing gear evaluation. Engine in-flight restarts
Results:
Objectives achieved. Stability & controls, performance and speed brakes evaluated to 135ktas. Max altitude 20,000ft. Engine in-flight restarts were cooler than planned.

Flight: 04
Date: 20 Apr 09
Flight Time: 4 mins
Pilot: Siebold Copilot: Binnie
FTE: None        
Objectives:        
New pilot integration. Envelope expansion. Landing gear evaluation.
Results:
Objectives achieved. Stability & controls, performance and speed brakes evaluated to 140ktas, max 2g's and altitude of 18,000ft. Landing gear cycled at 100 ktas. Asymmetric thrust on go-around resulted in large pitch and yaw excursions including tail contact with ground.

Flight: 05
Date: 20 May 09
Flight Time: Aprox. 3 hours
Pilot: Siebold Copilot: Nichols
FTE: None        
Objectives:        
Aft center of gravity handling qualities evaluation. Initial evaluation of pressurization and environmental control systems (ECS). 
Results:
All objectives completed. Pressurization and ECS worked as designed. Airspeed increased to 188 KTAS. Max altitude 20,000 ft. After landing, conducted an emergency response drill, including both Scaled and Mojave Air and Space Port resources.


Flight: 06
Date: 2 June 09
Flight Time: 3.1 hours
Pilot: Siebold Copilot: Nichols
FTE: None        
Objectives:        
Weight expansion at mid cg. Further pressurization/ECS functionality checks to 35,000 ft. Gear-down speed envelope expansion.
Results:
All objectives completed. Pressurization and ECS worked as designed. Speed envelope expanded to 250 KTAS with the gear down. Peak altitude increased to 35,000 ft. Starship was onboard for video and safety chase. Two low approaches were followed by a full stop landing.


Flight: 07
Date: 8 June 09
Flight Time: 6.1 hours
Pilot: Siebold Copilot: Alsbury
FTE: None        
Objectives:        
Weight expansion at mid cg. Further pressurization/ECS functionality checks to 45,000 ft. Speed envelope expansion. G envelope expansion. Airborne engine relights
Results:

All objectives completed. Pressurization and ECS worked as designed. Speed envelope expanded with the gear up and down to 340 KTAS. Peak altitude increased to 45,000 ft. Wind-up turns were performed to 2.5g's. Engines were shut down and restarted per plan.

 



Flight: 08
Date: 11 June 09
Flight Time: 1 hours
Pilot: Siebold Copilot: Nichols
FTE: None        
Objectives:        
FAA monitored flight for issuance of pilot letter of authorization.
Results:

Letter of authorization issued

 



Flight: 09
Date: 15 June 09
Flight Time: 7.5 hours
Pilot: Siebold Copilot: Stucky
FTE: None        
Objectives:        
Weight expansion at mid cg. Further pressurization/ECS functionality checks to 51,000 ft. Speed envelope expansion. Airborne engine relights.
Results:

All objectives completed. Pressurization and ECS worked as designed. Speed envelope expanded with the gear up to 370 KTAS. Peak altitudes increased to 52,400 ft. Performance, stability and handling evaluation performed at altitude. Engines were shut down and restarted per plan. Practiced instrument approaches.

 



Flight: 10
Date: 19 June 09
Flight Time: 6 hours (planned)
Pilot: Siebold Copilot: Nichols
FTE: None        
Objectives:        
To evaluate performance, stability and control, and cold soak effects on 1st long cross country. Flyby at Spaceport America as able.
Results:

En route testing above 40,000 feet was uneventful. During the descent toward the Spaceport America groundbreaking we experienced a failure of a speedbrake actuator. Based on facilities available and logistics for our ground crew, the pilots elected to make a precautionary landing at Williams Gateway airport near Phoenix. Our ground crew is on site and we hope to return to Mojave either this afternoon or tomorrow morning.



Flight: 11
Date: 20 June 09
Flight Time: 3 hours (planned)
Pilot: Siebold Copilot: Nichols
FTE: None        
Objectives:        
Flyby at Los Cruses NM in support of Spaceport America event. Instrument approaches.
Results:

Despite mechanical issues the day before the Scaled team was able to turn the jet for a Saturday morning demo at Los Cruses. Several flybys and approaches were performed for spectators in support of the Spaceport America groundbreaking. Systems were evaluated on the high altitude return leg to Mojave. One simulated approach was made to runway 26 before landing on 30.



Flight: 12
Date: 9 July 09
Flight Time: 4.5 hours
Pilot: Stucky Copilot: Siebold
FTE: None        
Objectives:        
ECS evaluation, 3rd Seat Evaluation, Performance, Landing gear envelope expansion.
Results:

All objectives completed. ECS shows exceptional cabin heating & cooling capability. 3rd seat adequate for test engineer duties. Gear extended out to 160 keas. Peak altitude for flight 51,000ft. Instrument approach & touch and go at Victorville.



Flight: 13
Date: 14 July 09
Flight Time: 5 hours
Pilot: Stucky Copilot: Siebold
FTE: None        
Objectives:        
Eval control surface mods, Eval pitot probe relocation, Intstrument approach practice, Pilot LOA practice
Results:

All objectives completed. Peak altitude for flight 51,000ft. Instrument approaches practiced. LOA maneuvers practiced.



Flight: 14
Date: 17 July 09
Flight Time: .9 hours
Pilot: Stucky Copilot: Siebold
FTE: None        
Objectives:        
Evaluate new DAS build, Instrument approach practice, FAA Monitored flight for pilot "Type Rating."
Results:

All objectives completed. Rating Issued.



Flight: 15
Date: 21 July 09
Flight Time: 5.7 hours
Pilot: Siebold Copilot: Nichols
FTE: Morgan       
Objectives:        
Oshkosh dress rehersal
Results:

Objectives achieved. Practiced all procedures & plans in preparation for our long cross country to the Oshkosh Airventure Convention. Practiced demo flight after simulated mission profile.



Flight: 16
Date: 27 July 09
Flight Time: 5.5 hours
Pilot: Siebold Copilot: Nichols
FTE: Morgan       
Objectives:        
Cross country to Oshkosh Airventure.
Results:

Evaluated systems functionality & performance on trip to Oshkosh. Arrived at KOSH & performed short demo flight.



Flight: 17
Date: 25 July 09
Flight Time: 0.2 hours
Pilot: Siebold Copilot: Nichols
FTE: Branson       
Objectives:        
Oshkosh demo flight.
Results:

Demo flight performed.



Flight: 18
Date: 31 July 09
Flight Time: 0.2 hours
Pilot: Siebold Copilot: Nichols
FTE: Morgan     
Objectives:        
Oshkosh demo flight.
Results:

Demo flight performed.



Flight: 19
Date: 1 August 09
Flight Time: 5.1 hours
Pilot: Siebold Copilot: Nichols
FTE: Morgan     
Objectives:        
Return to Mojave.
Results:

Evaluated systems functionality & performance on return trip to Mojave.



Flight: 20
Date: 15 Oct 09
Flight Time: 3.5 hours
Pilot: Stucky Copilot: Kalogiannis
FTE: Stinemetze    
Objectives:        
Modified spoilflap envelope expansion
Pressurization/ECS functionality with SS2 valves to 50,000 ft
Landing gear/spoilflap cold soak extension retraction
Fuel system temperature evaluation
Avionics and instrument approach checkout
Aircrew proficiency
Edwards Air Show Practice
Results:

Objectives achieved.


Flight: 21
Date: 17 Oct 09
Flight Time: 1.3 hours
Pilot: Stucky Copilot: Kalogiannis
FTE: Stinemetze      
Objectives:        
Spoilflaps Loads Data
ECS Evaluation
GPS Airspeed Calibration
Roll Effects of Angle of Attack
Edwards Air Show Practice
Results:

GPS airspeed cal, and approaches scrubbed for time. Other objectives achieved. Demo performed on arrival to Edwards Air Force Base "Flight Test Nation" Open House/ Air show.


Flight: 22
Date: 17 Oct 09
Flight Time: 1.2 hours
Pilot: Stucky Copilot: Kalogiannis
FTE: Stinemetze      
Objectives:        
Spoilflap Loads Data
Continued ECS Testing
GPS Airspeed Calibration
Return from Edwards Air Show

Results:

Objectives achieved. Airborne pickup and unrestricted climb departure from Edwards Open House with WK1.


Flight: 23
Date: 28 Jan 10
Flight Time: 3.1 Hrs
Pilot: Stucky Copilot: Binnie
FTE: Kalogiannis   
Objectives:        
Launch pylon envelope expansion and performance effects
Landing gear door evaluation
SpaceShipTwo approach guidance evaluation
Pilot proficiency
Results:

Launch pylon and gear doors performed well. Multiple SpaceShipTwo approaches flown.