BV 107-II RFM Flashcards
Kinds of Operations authorized
-Transport Category “A” in accordance with, RFMS 19
-Transport Category “B”
-Water Operations, limited to landing & Takeoff only.
-VFR
-IFR in accordance with RFMS 9
-External Load Operations in accordance with the RLCM
Transport Category “B” Operating Limits & Restrictions
Landing and IGE weight limit is 20,000 pounds
External Load maximum weight is 22,000 pounds
Maximum Hook capacity - 11,500 pounds
Maximum OAT 43.5° Celsius
Engine Starter Limits
No more than 30 seconds per attempt
No more than 3 attempts in a 30 minute period.
3 minutes between start attempt after aborted start.
Two Engine Performance limits
One Engine Inoperative Performance limits
Ng Overspeed Limits
Overspeed Limit Range (15 seconds): 103.6 - 105.3%
Overspeed Limit: 105.3%
Maximum permitted speed for 2-1/2 minute power: 103.6%
Nf Overspeed limit
Maximum Permitted (15 second): 118.5%
PTIT (T5) limits
949° - 2 seconds (starting)
841° - 2 seconds (transient)
766° - 15 seconds (Transient Overtemp)
758° - 2-1/2 minute OEI
707° - Engine Overtemp Aural Warning
696° - 5 minute & OEI Emergency Power
660° - Max continuous
Engine Oil Temperature range
neg 20° - 121° Celsius.
Engine Oil Pressure Ranges
Normal Range - 20 to 60psi
Total Range - 8 to 75psi
Filter bypass with delta P of 15-21psi
Master Caution Indicator - 7 to 10psi
Note: At 65 to 75psi a relief valve diverts partial oil flow to the forward sump.
Transmission Limits Two Engines Operating (100% RRPM)
5 Minute Power - 76.5%
Max Continuous - 70%
Transmission Limits - OEI (100% RRPM)
2-1/2 Minute Power - 94%
5 Minute T/O & 30 Minute Emergency - 88%
Max Continuous Power - 78.5%
Transmission Oil Temperature
Maximum: 110° C
Minimum: -12° C
Normal Range: -12° C to 100° C
Transmission Oil Pressure
Maximum: 85 psi
Minimum: 20 psi
Useable Fuel (Cat B)
175 gal tanks: 173 gal
190 gal tanks: 188.7 gal
Useable Fuel (Cat A)
175 gal tanks: 151 gal
190 gal tanks: 162 gal
Authorized Fuel Types
JP-4
JP-5
JP-8
TS-1
Fuel Pressure Limits
Maximum Press: 995 psi
Minimum Press: 190 psi
Engine Oil Type
Type 1 - MIL-PRF-7808
Type 2 - MIL-PRF-23699
Power Off Rotor Limits
Maximum: 113%
Normal Range
Up to 6000 ft PA: 92 to 113%
Above 6000 ft PA: 100 to 113%
Transient Range: 88 to 92% below 6000 ft PA
Power On Rotor Limits
Maximum: 100%
Below 6000 ft PA: 92 to 100%
Above 6000 ft PA: 100%
Transient Range: 88 to 92% below 6000 ft PA
Maintenance Flights Maximum: 109%
External Load Rotor Limits
100% Only
Density Altitude Limits (VFR Cat B)
Takeoff: 12,500 ft DA
Enroute: 13,000 ft DA for weights up to 19,000 lbs.
10,000 ft DA for weights 19,000 to 20,000 lbs.
Landing: 12,500 ft DA maximum
Density Altitude Limits (IFR Cat B)
Takeoff -
IFR: 9,500 ft DA for weights up to 19,000 lbs.
IFR: 6,000 ft DA for weights 19,000 to 20,000 lbs.
Enroute -
IFR: 10,500 ft DA for weights up to 19,000 lbs.
IFR: 6,000 ft DA for weights 19,000 to 20,000 lbs.
Landing -
IFR: 10,500 ft DA for weights up to 19,000 lbs.
Aerobatic Maneuvers
PROHIBITED
Flight Into Known Icing Conditions
PROHIBITED
Fuel Crossfeed Operation
Only during emergency operation.
Ceased at 400 lbs. of fuel remaining in selected tank
Flight Prohibited in:
2° C and visible moisture
Use of Engine Inlet Anti-Ice
Required to be on for temps at and below 4° C
Max horizontal wind gusts velocity for starting:
15 knots
Negative G maneuvers
PROHIBITED
Rotor Brake application below 40% Nr
PROHIBITED
Fuel Pressure Indicator Markings
Maximum: 995 psi (red radial line)
Precautionary: 795 to 995 psi, (yellow arc)
Minimum: 190 psi (red radial line)
Engine Oil Temperature Indicator
Markings
Maximum: 121° C (red radial line)
Normal Operating Range: -35° C to 121° C
Minimum: -54° C (red radial line)
Engine Oil Pressure Indicator
Markings
Maximum: 75 psi (red radial line)
Precautionary: 60 to 75 psi (yellow arc)
Normal: 25 to 60 psi (green arc)
Precautionary: 8 to 25 psi (yellow arc)
Minimum: 8 psi
Transmission Oil Temp Indicator
Markings
Maximum: 110° C (red radial line)
Normal: -12° C to 110° C (green arc)
Minimum: -12° C
Transmission Oil Pressure Indicator
Markings
Maximum: 85 psi (red radial line)
Normal: 20 to 85 psi (green arc)
Minimum: 20 psi (red radial line)
Hydraulic Pressure Indicator
Marings
Maximum: 1750 psi (red radial line)
Normal: 1050 to 1750 psi (green arc)
Minimum: 1050 psi (red radial line)
Aux Battery Check Procedure
EMERG ENG TRIM C/B……………………………….ON
AUX BATT………………………………………….Held ON
DC Volt Meter………………………..Confirm 24VDC
Cycle each ECL from STOP to FLY
Ensure no more than 3VDC drop
How much time is allowed for the T5 Horn check?
Each side must be completed before the 3 second PTIT self test is completed.
At what Ng does the starter drop out at?
The starter should automatically drop out at 46% Ng. If it is suspected that the starter has not disengaged, the starter CB can be pulled and reset.
What is the typical Ng idle speed?
55.7% Ng, ± 3%
At what voltage is a hot start likely to occur?
During engine start, If DC voltage drops to less than 18 volts, a hot start is likely to occur.
At what Ng percentage does the boost pumps get turned on.
17% Ng for AC start
19% Ng for DC start
If the Engine Overspeed test switch does not activate, what is the likely reason?
The collective must be below 3° below detent for the system to test.
During engine start, with the OAT at or below 4° C, what should be turned on?
The engine anti-ice switch must be left on during start and operations at or below 4° C OAT.
Describe the stages of fuel pressure during engine start
While the ECL is in CRANK: Fuel pressure will build to around 400 psi
When ECL is moved to START: Fuel pressure will drop to 50 psi
After engine “light off”: Fuel pressure builds to between 190 to 230 psi at ground idle
What action should you take if you encounter droop stop pounding during ground taxiing?
Pedals…………………………….CONFIRM NEUTRAL
Collective Pitch…………………..INCREASE Slightly
Longitudinal Control Displacement…NEUTRAL
Lateral Control Displacement…………..REDUCE
