GAP- First Team Meeting Meeting - 23 January 2003

Attendees:

Ramanathan
John Kosmatka
Jose Panza
Greg Roberts
Rocky Issa

Points discussed:

-- time scale of project (goal to have successful deployment of GAP-PT
aircraft by June 2003)

-- the instruments to be flown on GAP-PT are outlined in table and 
images of the instruments were distributed to the group.  This PPT file
has been sent to Rocky Issa for posting on the net.

-- if initial phase is successful, we will submit another proposal in
July to NSF or NASA for 3rd phase of the project.  Third phase involves
building six aircraft for stacked configuration (above, in, and below-
cloud formation).

-- Discussion of design for GAP-PT.  Debated centered around buying
large engine and developing a plane similar to GAP-FM plane or sticking
to the original GAP-PT designs of a smaller engine and smaller plane.
 Increasing the size of the plane to accommodate larger engine design 
raised concerns raising the costs of the aircraft too much.  The 
decision was to build the GAP-PT plane based-on the smaller and 
inexpensive engine.  This plane may still be used to test instruments 
off the coast in future missions.

Characteristics of GAP-PT
-- cruise speed between 25 and 35 m/s -- and is okay for aerosol inlet
-- altitude up to 8000 ft (for radiation measurements) pending on FAA 
regulations. John K. will follow up on this.
-- flights at least 100 km
-- payload includes CPC, OPC, DAQ, CM22, AI

-- A contract for Jose Panza will be signed and presented to UCSD and 
SIO as soon as possible.

-- discussed placement of radiometer on the wing or the fuselage. 
There are concerns about the propeller biasing the measurements (esp. 
when mounted on the fuselage).  and radiometers should be as close to 
the fuselage as possible.  Also some concern about mounting the whole 
device (dome and sensor housing) in the airstream -- possible slot or
diversion of the airstream may be integrated into the wing.  Wind 
tunnel testing will assess the optimum placement