Term
| WHICH SPECIES OF WOOD IS CONSIDERED TO BE THE STANDARD WHEN COMPARING OTHER WOODS FOR USE IN AIRCRAFT STRUCTURE? |
|
Definition
|
|
Term
| WHAT IS THE BASIC DIFFERENCE BETWEEN PLYWOOD AND LAMINATED WOOD? |
|
Definition
PLYWOOD: GRAIN IN THE LAYERS RUN 90 DEGREES OR 45 DEGREES TO EACHOTHER
LAMINATED WOOD: GRAIN IN EACH LAYER RUN THE SAME DIRECTION. |
|
|
Term
| WHAT KIND OF GLUE IS RECOMMENDED FOR MAKING A REPAIR TO A WOODEN AIRCRAFT STRUCTURE? |
|
Definition
|
|
Term
| HOW IS AIRCRAFT PLYWOOD PREPARED FOR MAKING A COMPOUND BEND? |
|
Definition
| THE WOOD IS SOAKED IN HOT WATER UNTIL PLIABLE. |
|
|
Term
| HOW IS PRESSURE ALLPLIED TO THE GLUED JOINT WHEN SPLICING A WOODEN AIRCRAFT WING SPAR? |
|
Definition
| CABINETMAKER PARALLEL CLAMPS. |
|
|
Term
| HOW MUCH PRESSURE MUST BE APPLIED TO A GLUE JOINT IN A PIECE OF SOFTWOOD TO PRODUCE A STRONG JOINT? |
|
Definition
| 125 TO 150 POUNDS PER SQUARE INCH. |
|
|
Term
| WHAT IS THE CORRECT REPAIR TO A WOODEN AIRCRAFT WING SPAR IF THE WING-ATTACH BOLT HOLES IN THE SPAR ARE ELONGATED? |
|
Definition
| SPLICE IN A NEW SECTION OF THE SPAR AND DRILL NEW HOLES. |
|
|
Term
| WHAT KIND OF REPAIR IS RECOMMENDED FOR A HOLE IN THE PLYWOOD SKIN OF AN AIRCRAFT WING? |
|
Definition
|
|
Term
| WHAT IS THE RECOMMENDED TAPER FOR A SPLAYED PATCH IN A PLYWOOD AIRCRAFT SKIN? |
|
Definition
|
|
Term
| WHAT IS THE RECOMMENDED TAPER FOR A SCARF PATCH IN A PLYWOOD AIRCRAFT SKIN? |
|
Definition
|
|
Term
| WHY SHOULD SAND PAPER NEVER BE USED WHEN PREPARING A SCARF JOINT IN A WING SPAR FOR SPLICING? |
|
Definition
| THE DUST CAUSED BY SANDING WILL PLUG THE PORES OF THE WOOD SO THE GLUE CANNOT FORM A GOOD BOND. |
|
|
Term
| WHAT IS THE LARGEST HOLE IN A PLYWOOD SKIN THAT CAN BE REPAIRED WITH A FABRIC PATCH? |
|
Definition
|
|
Term
| WHY ARE LIGHT STEEL BUSHINGS OFTEN USED IN A WOODEN WING SPAR? |
|
Definition
| THE BUSHING KEEPS THE SPAR FROM BEING CRUSHED WHEN THE NUT IS TIGHTENED. |
|
|
Term
| HOW LONG SHOULD A GLUE JOINT BE KEPT UNDER PRESSURE WHEN SPLICING A WOODEN AIRCRAFT WING SPAR? |
|
Definition
|
|
Term
| ARE MINERAL STREAKS IN A PIECE OF STRUCTURAL AIRCRAFT WOOD REASON FOR REJECTING THE WOOD? |
|
Definition
| NO, IF THERE IS NO EVIDENCE OF DECAY. |
|
|
Term
| WHICH AREA OF A WOODEN AIRCRAFT WING SPAR MUST NOT CONTAIN ANY SPLICE? |
|
Definition
- UNDER WING ATTACH FITTINGS
- LANGING GEAR FITTINGS
- ENGINE MOUNT FITTINGS
- LIFT AND INTERPLANE STRUT FITTINGS
|
|
|
Term
| HOW IS COMPRESSION WOOD IDENTIFIED? |
|
Definition
| IT HAS A HIGH SPECIFIC GRAVITY. |
|
|
Term
| WHAT IS DONE TO A SPLICE IN A WOODEN AIRCRAFT WING TO STRENGTHEN THE SPLICE? |
|
Definition
| GLUE REINFORCING PLATES TO BOTH SIDES OF THE SPLICE. |
|
|
Term
| WHY MUST ABRUPT CHANGES IN THE CROSS-SECTIONAL AREA OF A WOODEN STRUCTURAL MEMBER BE AVOIDED? |
|
Definition
| IT WILL CONCENTRATE STRESSES AND CAN CAUSE FAILURE. |
|
|
