Post on 28-Sep-2018
UH-1H with Lycoming T53-L-13B Engine and Metal Main Rotor Blades
OGE Hover Performance Improvement with BLR FastFin System
0
100
200
300
400
500
600
700
800
900
0 2000 4000 6000 8000 10000 12000 14000 16000
Density Altitude
Ad
dit
ion
al P
ay
loa
d (
lbs
)
BLR COMPANY FLIGHT TEST DATA
FOR
REFERENCE
ONLY
C
M
Y
CM
MY
CY
CMY
K
BLR_logo_C.pdf 1 9/13/10 1:59 PM
FAA-Approved Operator’s Manual Supplement NASA / BLR Dual Tail Boom Strakes for: Helicopter Models: UH-1F, UH-1P & TH-1F
with Lycoming T53-L-13B Engine and Metal Main Rotor Blades
2 Document No. RFMS-BH205-10 FAA-Approved May 8, 2007
CHAPTER 7 – PERFORMANCE NOTE ALL ITEMS REMAIN AS IN BASIC OPERATOR’S MANUAL EXCEPT THE FOLLOWING:
HOVER CEILING MAXIMUM TORQUE POWER AVAILABLE (30 MINUTE OPERATION)
324 ROTOR/6600 ENGINE RPM
BLR H
over Ceiling Sheet 1 Strake O
nly UH
-1F Rev IR
1.JNB
GROSS WEIGHT - LB(OGE)6000 6500 7000 7500 8000 8500 9000 9500
PRES
SUR
E AL
TITU
DE
- FEE
T
-2000
0
2000
4000
6000
8000
10000
12000
GR
OSS
WEI
GHT
- LB
6000
6500
7000
7500
8000
8500
9000
SKID HEIGHT - F
EET
50 (O
GE)
FAT 20 30 40 50
0oC .2 .3 .4 .5
-20oC .4 .6 .8 1.0
-40oC 1.4 2.1 2.8 3.5
-50oC 2.4 3.6 4.8 6.0
-60oC 4.0 6.0 8.0 10.0
40
30
TORQUE CORRECTION PSI*
FAT - oC
-20-40-30
0
20
CALIBRATED TORQUE-PSI
*When operating at or below 0oC increase the calibrated torque determined from sheet 2 by the amount shown in the table to determine torque required. See example on sheet 2.
25
CORRECTION TABLE:
25
1510
EXAMPLE
WANTED
GROSS WEIGHT TO HOVER
KNOWN
PRESSURE ALTITUDE = 10600 FEETFAT = 10oCSKID HEIGHT = 2 FEET
METHOD
ENTER PRESSURE ALTITUDEMOVE RIGHT TO FATMOVE DOWN TO SKID HEIGHTMOVE LEFT, READ GROSS WEIGHTTO HOVER = 8810 POUNDS
-10
10 MAXIM
UM
WEIG
HT LIMIT (9000 LB)
FIGURE A-5 Hover Ceiling Max Torque Available (30 min) USAF UH-1F, UH-1P & TH-1F with Lycoming T53-L-13B Engine and Metal Main Rotor Blades
FOR
REFERENCE
ONLY
C
M
Y
CM
MY
CY
CMY
K
BLR_logo_C.pdf 1 9/13/10 1:59 PM