2002 – T28 Summer projects

Date

Flight#

Testing device

Time

Comments

(location for test)

Feb 5

Ground test

Static/Pitot Pressure Calib

 

 

Rapid City Airport Hanger

 

Data in C:\t28\yr2002\f799\pressure.raw

Static = 4000  ΰ 22,000 ft

Pitot = 60 kt – 180 kt

Stat_press_1 = dn1*1.58675e-2 + 527.918

Stat_press_2 = dn2*1.09126e-2 + 694.525

 

Feb 6

Ground test

Electrostatic testing on the T28

 

 

Rapid City Airport Hanger

 

- consultant was Jack Chapdelaine

- sensitive points found at RFT, comm1 antenna and VOR antenna.  All were remedied.

April 19

F775

Instruments on T28

 

 

2DC 

HVPS 

Slow data

Hail

DMT

FSSP

In flight

Rapid City Test Flight

Pilot: Charlie Summers

 

Data in C:\t28\data\yr2002\f775\f4191336.raw

- 536 buffers: good images, mostly ice

- 0 buffers; non-charge mode

- 2171 buffers:  OK

- 0 buffers:

- worked ok

- did not work!

 

Flight was short, mainly to check the brakes.  Telemetry worked OK.  No heading!

April 25

Ground test

Instruments on T28

 

 

 

 

 

2DC  @ 15:07

HVPS  @ 15:10, 11

Slow data

Hail

DMT

FSSP @ 15:08

Ground

Rapid City Airport Hanger

 

Balloon on Pitot tube

Water spray test.

Data in C:\t28\yr2002\backup\SDSMT\f4251457.raw

C:\t28\yr2002\testf\f900\*

-          recorded ok images

-          recorded images

-          ok

-         N/A

 

 

May 3

F776

Instruments on T28

 

 

 

2DC  

HVPS  

 

Slow data

Hail

DMT

FSSP

In flight

Rapid City, Test Flight

Pilot: Tom Warner

16:05 – 17:09 LT

 

Data in C:\t28\data\yr2002\f776\f5031551.raw

 

– 5056 buffers:  good images

– 6093 buffers; non-charge mode, collects 10 buffers/sec!; some good buffers and lots of bad ones.

– 4745 buffers: ok

- 194 buffers; good images.

- worked ok.

- not working!

 

Telemetry worked ok.

 

- FM test 16:06

- P-static when in precip

Due to lack of microphone for oxygen mask, pilot did not wear a mask and flight was conducted at altitudes below 14 kft. Precip was mainly small ice particles falling as virga.

May 15

 

 

 

 

Rapid City

 

Donna uses tag 17 (before used for heading) to retrieve NO data from the NOx analyzer.

New Heading Card (INS synchroheading).  For the new heading card create tag #990.

 

May 20

 

 

 

 

Rapid City Airport Hanger

 

Gary installed the 250MB IOMEGA zip drive

 

May 21

Ground test

 

 

Rapid City Airport hanger

 

Gary did a ground test with the new heading on.

File: f5211127.raw

 

Routine get_heading2.pro includes the equations valid for the new heading card.

 

May 22

Ground test

 

 

Rapid City Airport hanger

 

Gary did a ground test with the new heading on.

File: f5221507.raw; the heading plot was ok!

 

May 23

F777

Instruments on T28

 

 

 

 

 

 

2DC

HVPS

Slow data

Hail

DMT

NOx

FSSP

 

In flight

Rapid City, test flight

Pilot: Tom Root

12:30 – 13:10 LT

 

1st flight with TEI 42C-TL NOx analyzer installed.

Initially some trouble getting computer to boot.

Data in: c:\t28\yr2002\f777\f5231833.raw

 

- 0 records

- 829 buffers: lots of bad buffers (‘stuck bit’ case)

- 2333 buffers: ok

- 0 records

- did not record any significant data

- very small readings (up to 1 ppbv)

- it worked this time

June 3

F778

Instruments on T28

 

 

 

2DC

HVPS

 

Slow data

Hail

DMT

NOx

FSSP

 

In flight

Rapid City to Greeley, CO

Pilot: Tom Root                   

 

Data in: c:\t28\yr2002\f778\f6031811.raw

 

- 176 buffers: ok

- 113 buffers: but no images, housekeeping does not look good

- 6481 buffers: ok

- 5 buffers: not really anything recorded.

- ok

- off

- Bad transformer in FSSP – took to DMT for repair

June 5

F779

Instruments on T28

 

 

 

2DC

HVPS

Slow data

Hail

DMT

NOx

FSSP

 

 

Greeley, CO, Test flight

Pilot: Charlie Summers

19:15 – 19:55 UT

 

Data in : c:\t28\data\yr2002\f779\*

- no records

- 1936 buffers: bad images

- 2552 buffers: ok

- no records

- ok

-a spike value at 19:36:00   

-ok

Transponder fails

Fuel boost pump fails

June 7

Ground test

NOx analyzer

 

 

 

Ground test with all instruments on

Greeley, CO, airport – hanger

 

Calibration for NO.

File: f6071605.raw

Raw file looks ok;

HVPS images look ok.

2DC images look ok.

 

June 9

F780

 

 

 

 

 

 

 

 

 

 

 

 

 

Instruments on T28

 

 

 

2DC

HVPS

 

 

 

Slow data

Hail

DMT

NOx

 

 

In flight

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Greeley, CO, Research Flight

Pilot: Charlie Summers

 

Data in : c:\t28\data\yr2002\f780\*

 

- 18 buffers with small particles in it.

- 3015 buffers: all bad images.

- Gary did HVPS test: f5232222.raw

- Donna adjusted HVPS image on the horizontal axes (x2)

- 1798 buffers: ok

- none

- OK

Note: Strong fires SW of Denver; could see the smoke; Charlie flew close to area of smoke, and NOx instrument had ~ 40 ppbv reading!

 

June 10

 

Instrumentation tests in hangar

 

Verified NO analyzer response at 43 and 90 ppbv

 

Wired new switch for turning on analyzer in flight

June 11

F781

Instruments on T28

 

 

 

 

2DC

HVPS

Slow data

Hail

DMT

NOx

 

 

FSSP

In flight

Greeley, CO, Research Flight

Pilot: Charlie Summers

00:39 – 01:47

 

Data in: c:\t28\data\yr2002\f781\f6120025.raw

 

-1642 buffers: good images

- 2266 buffers: some good buffers and some not good

- 4970 buffers: ok

- 620 buffers: looking good

- nothing recorded – Donna – I noted a response during taxi after landing. So the instrument must have been on?

- working good

 

NOx analyzer warm up test ~ 30 minutes to settle to 1 ppbv.

 

Contacted SPEC to sent copies of the bad buffers we recorded with HVPS and ask their opinion in how to fix the problem.

 

June 12

F782

Instruments on T28

 

 

 

2DC

HVPS

 

Slow data

Hail

DMT

NOx

FSSP

In flight

 

 

Greeley, CO, Research Flight

Pilot: Tom Warner

00:04 - ~00:35

 

Data in: c:\t28\data\yr2002\f782\f6122351.raw

- 249 buffers: good images

- 3196 buffers: some good images, and many bad buffers

- 2640 buffers: ok

- 2 buffers: nothing there

- ok

- ok

- ok

 

Tom Warner reported loss of engine, oil problems, so he landed in Cheyenne, WY

June 15

F783

 

 

Attempted to fly T28 from Cheyenne, WY, to Greeley, CO

Pilot: Tom Root

 

Pilot noticed the chip light on, so he had to go back to Cheyenne.

June 15

F784

Instruments on T28 – all off

 

In flight

 

Flight back to Greeley, CO, from Cheyenne.

Pilot : Tom Root

 

June 16

F785

Instruments on T28

 

 

 

 

2DC

HVPS

 

Slow data

Hail

DMT

NOx

 

In flight

 

Greeley, CO, Research Flight

Pilot: Charlie Summers

22:22 – 23:12

 

Data in:  c:\t28\data\yr2002\f785\f6162211.raw

 

- 338 buffers: good images

- 4707 buffers: some good images, and lots of bad ones

- 3696 buffers: ok

- 99 buffers: good images

- ok

- Nice spike from nearby lightning at 22:56

 

Flight terminated unexpectedly due to oil loss (2 gallons of oil).  Oil loss seemed to coincide with switch to high blower.

June 18

F786

Instruments on T28

 

In flight

 

 

 

 

 

Greeley, CO, Test Flight

Pilot: Tom Root

 

Pilot found a crack in the engine through which the oil was lost.