Towing Flashcards
What book and task number is towing?
1C-135(K)R-2-2JG-2 Task 2-39 (Change 25)
What is the aft CG limit for towing?
37%
When can you tow without the steering bypass key installed?
Never
When can you tow with flat or underinflated tires?
When the clearing of a runway or taxiway needs expedited
How many blown tires may you tow with to clear a runway or taxiway?
One or two main tires
What are the two speed requirements
- Not to exceed the walking pace of team members
- Not to exceed 5 MPH
When can tow supervisor ride with uke or vehicle in front of uke?
When aircraft is being towed on taxiways with established taxi lines and adequate clearance
What two conditions neccesitate a chock walk?
- Hyd brake pressure cannot be maintained or controlled
- Battery power cannot be used
How long must the chocks be in a chock walk? How many must be dragged?
56 inches. 4
What is the only tow bar approved to tow a KC-135?
F71136-500
Wing walkers will maintain a position forward of the direction of travel at wing tip within ___ forward, aft, or outboard of wing tip.
15 feet
What are the authorized types of signals? (six types)
Hand signals, wands, whistles, horns, interphone, or portable radios
Where must the chocks be kept to chock main landing gear wheels after stopping?
On the tow vehicle
If towbar is disconnected from the tow tractor for ____, set the parking brake and use nose chocks.
Repositioning of the tow tractor
There is a warning about the crew entry chute floor grille in the towing procedure. What is it?
There entry grill must be kept closed when personnel are inside aircraft. The entry grille should be opened only for entry/exit
Towing is a ______________ procedure
sequential, step by step
What should you do to relieve loads on the main landing gear?
Move aircraft in a straight line for a short distance before starting or completing a turn
If shear bolts in tow bar fail, do not use higher than what strength shear bolt to replace?
PN AN7
Do not turn nose gear past what?
45 degree limit mark
When towing with high gross weights, what type of turns should you take?
Turns with the largest possible turning radius
As a tractor operator, what two things should you avoid?
Sudden starts and stops
On a T-model, the brake rider must ensure what?
That the #2 vavle is closed
Who must brake rider maintain visual contact with at all times?
Tow supervisor
With carbon brakes, approx when will brake overpressure relieft valves release pressure?
3,400 PSI
Pressure in pilot reserve brake must not exceed what?
3,100 PSI while parking brake is set
Pilot reserve brake must not fall below what?
3,000 PSI
When brake riding, do not turn or restrain ________?
Nose steering wheel
Aircraft brakes should only be used for an emergency stop during a tow. Describe the procedure
Firmly apply brakes. Do not pump brakes. Set parking brake after aircraft has come to a stop.
Where must personnel not walk during a tow?
Between tow tractor and aircraft nose wheel
Where must personnel not ride during a tow?
Between tow tractor and aircraft nose wheel or on outside of aircraft or tow tractor
When are wing walkers not required?
When towing on unobstructred, established taxiways or runways or parking ramps where taxi or towing lanes are marked with guide lines.
Tow supervisor must brief what two types of stop symbols?
Normal and emergency
What is the absolute minimum number of people required to tow?
3
The tow vehicle will be connected in a manner which will allow the vehicle driver to face the direction of travel while seated per what?
AFOSH Standard 91-100
When can you look over your shoulder to face the direction of travel?
While making minor changes (center line to parking spot)
In an emergency, aircraft can be towed up to what weight with nose gear shock strut deflated?
220,000 pounds
What is the maximum length you can tow with in regards to the nose gear shock strut?
11 inches
What must you wipe down the struts with?
Hydraulic fluid
If tire pressure check has been accomplished and documented within _____ you may skip it
72 hours
What can cause the tow bar safety shear bolts to fracture, causing possible damage to the steering collar?
Towing the aircraft without the steering lockout pin installed
What four circuit breakers must be pulled on the APU Power panel when towing into a hangar?
APU 1, APU 2, Valve Cont 1, and Valve Cont 2
What circuit breakers must be pulled if QSAS power is used during tow?
Anti-skid Outboard (B4) and P83 Bus (E20)
What is the TCTO number for block 40?
1C-135-1547
When can you close the P100 circuit breakers during a tow?
If radio communication is required to cross an active runway. Circuit breakers must be opened once the aircraft has cleared
What position must the battery power switch be in during a tow?
Emergency
How many full brake applications are available at the required PSI?
3
Which circuit breakers must be open on the P13 switched DC Bus?
P100 Power (AC1, AC2, AC3)
On an R-model, ensure the manuel refuel valve is in what position?
Refuel
What are two major safety concerns when hooking up the tow bar?
Do not approach tow bar to hook up until tow vehicle is within approx 6 inches. Personnel hooking up tow bar shall maintain visual contact with tow vehicle driver
Initially stop plane about ______ short or beyond desired ending location.
2 feet
When must you install a ground wire?
When towing into a hangar
Towing supervisor will visually inspect steering knuckle web PN ________ for cracks after each tow.
5-86524
What radius of crack must be reworked on the steering knuckle?
,50 inch
