SENSITIVE ALTIMETER

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP71B00263R000200010019-7
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 3
• Document Creation Date: November 17, 2016
• Document Release Date: January 4, 1999
• Sequence Number: 19
• Publication Date: April 11, 1966
• Content Type: MF

Approved For Release 20QW08/25 : Cl' 263R0002000IS19-7
IDEALIST IDEA 2968
Copy
11 April 1966
MEMORANDUM FOR: Chairman, ICEB
SUBJECT: Sensitive Altimeter
1. In connection with the IDEALIST Configuration Evaluation
Board held on 14 February 1966, the following data is submitted:
a.
New Equipment
(1) Air Data Computer (ADC)
(2) 3 inch Tape Altimeter (IND)
(3) Temperature Probe (PROBE)
b.
Weight
(1) ADC - Approx 12 lbs.
(2) IND - Approx 4 lbs.
(3) PROBE - Approx 0.5 lbs.
c.
Operating Range
(1) Temp:
-54 degrees Cent. to +71'degrees Cent.
(2) Alt:
+80,000 ft.
(3) MTBF:
ADC - 3000 hrs.
(From C-141 A/C)
IND - No info as yet.
PROBE - No info as yet
d. Warranty:
(1) ADC and IND 12 mos or 1500 flying hours.
IDEALIST
Approved For Release 2000/08/25 : CIA-RDP71 B00263R000200010019-7
Attachment (2)
 Approved For Release 20QQJ08/25 : CIA-RDP71 B00263R00020001,LO19-7
IDEALIST IDEA 2968
e. Accuracies - ADC
(1) Pressure Altitude - Plus or minus 20 ft or
0.15%.
(2) Calibrated Indicated Airspeed - Plus or minus
2 kts from 80-250 kts. plus or minus 3 kts over entire
range from 50 kts to 400 kts.
(2) Altitude Accuracy - Plus or minus 10 ft up to
80,000 ft.
(3) Mach Hold - Sensitivity of .0005 Mach (0.1
knot at 70,000 ft.)
(4) True Airspeed - Plus or minus 5 kts to 30,000
ft and 2 kts from 30,000 to 80,000 ft.
(5) Free Air Temp - Plus or minus 2 degrees Cent.
(6) Rate of Climb - 50 ft/min or 5 percent with
25 f t/min threshold.
f. Accuracies - Indicator (Altitude)
(1) Sensitivity - Plus or minus 5 ft up to
80,000 ft.
g. Budgetary Prices
(1) ADC '
Q Unit Price Total Price
25
40
60
(2) Tape Altimeter
.Q Unit Price Total Price
25
40
60
IDEALIST
Approved For Release 2000/08/25 : CIA-RDP71 B00263R000200010019-7
 Approved For Release 2000J08/25 : CIA-RDP71 B00263R000200010019-7
IDEALIST
ONOWNWO
(3) Temp. Probe-
Qty Unit Price Total Price
25
40
60
2. Use of the above system would allow the removal of the
existing Mach Computer with a 10 fold increase in Delta Mach
sensitivity. With minor modification the existing "Cabin-
Q-Ba
"
lti
y
a
meter could be utilized as a pressure
MD/OSA let.(23Feb66)
Distrib ion:
#1 - C/ID/OSA
#2 - MD/OSA
#3 - MD/OSA
#4 - RB/OSA
#5 - Chrono
IDEALIST
-3-
Approved For Release 2000/08/25 : CIA-RDP71 B00263R000200010019-7