Every electric starter must use a switch of some kind for starting purposes and most systems include an output regulator and a reverse current cut-out. The output regulator is a simple device that regulates the strength of the generator current that is supplied the storage battery. A reverse current cut-out is a form of check valve that prevents the storage battery from discharging through the generator. Brief mention is made of electric starting because such systems will undoubtedly be incorporated in some future airplane designs. Battery ignition is already being experimented with.

BATTERY IGNITION SYSTEM PARTS

A battery ignition system in its simplest form consists of a current producer, usually a set of dry cells or a storage battery, an induction coil to transform the low tension current to one having sufficient strength to jump the air gap at the spark-plug, an igniter member placed in the combustion chamber and a timer or mechanical switch operated by the engine so that the circuit will be closed only when it is desired to have a spark take place in the cylinders. Battery ignition systems may be of two forms, those in which the battery current is stepped up or intensified to enable it to jump an air gap between the points of the spark plug, these being called “high tension” systems and the low tension form (never used on airplane motors) in which the battery current is not intensified to a great degree and a spark produced in the cylinder by the action of a mechanical circuit breaker in the combustion chamber. The low tension system is the simplest electrically but the more complex mechanically. The high tension system has the fewest moving parts but numerous electrical devices. At the present time all airplane engines use high tension ignition systems, the magneto being the most popular at the present time. The current distribution and timing devices used with modern battery systems are practically the same as similar parts of a magneto.

INDEX

A
PAGE
Action of Four-cycle Engine[38]
Action of Le Rhone Rotary Engine[503]
Action of Two-cycle Engine[41]
Action of Vacuum Feed System[119]
Actual Duration of Different Functions[93]
Actual Heat Efficiency[62]
Adiabatic Diagram[51]
Adiabatic Law[50]
Adjustment of Bearings[449]
Adjustment of Carburetors[151]
Aerial Motors, Must be Light[20]
Aerial Motors, Operating Conditions of[19]
Aerial Motors, Requirements of[19]
Aeromarine Six-cylinder Engine[527]
Aeronautics, Division in Branches[18]
Aerostatics[18]
Air-cooled Engine Design[229]
Air-cooling Advantages[231]
Air-cooling, Direct Method[228]
Air-cooling Disadvantages[231]
Air-cooling Systems[223]
Aircraft, Heavier Than Air[17]
Aircraft, Lighter Than Air[18]
Aircraft Types, Brief Consideration of[17]
Air Needed to Burn Gasoline[113]
Airplane Engine, Power Needed[21]
Airplane Engines, Overhauling[412]
Airplane Engine, How to Time[269]
Airplane Engine Lubrication[209]
Airplane, How Supported[21]
Airplane Motors, German[543]
Airplane Motor Types[20]
Airplane Motors, Weight of[21]
Airplane Power Plant Installation[324]
Airplane Types[18]
Airplanes, Horse-power Used in[26]
Air Pressure Diminution, With Altitude[144]
Altitude, How it Affects Mixture[153]
Aluminum, Use in Pistons[297]
American Aviation Engines, Statistics[546]
Anzani Radial Engine Installation[344]
Anzani Six-cylinder Star Engine[465]
Anzani Six-cylinder Water-cooled Engine[459]
Anzani Ten- and Twenty-cylinder Engines[468]
Anzani Three-cylinder Engine[459]
Anzani Three-cylinder Y Type[462]
Argus Engine Construction[545]
Armature Windings[168]
Atmospheric Conditions, Compensating For[143]
Austro-Daimler Engine[557]
Aviatics[18]
Aviation Engine, Aeromarine[527]
Aviation Engine, Anzani Six-cylinder Star[465]
Aviation Engine, Canton and Unné[469]
Aviation Engine Cooling[219]
Aviation Engine, Curtiss[519]
Aviation Engine Cylinders[233]
Aviation Engine, Early Gnome[472]
Aviation Engine, German Gnome Type[495]
Aviation Engine, Gnome Monosoupape[486]
Aviation Engine, How To Dismantle[415]
Aviation Engine, How to Start[460]
Aviation Engine, Le Rhone Rotary[495]
Aviation Engine Oiling[218]
Aviation Engine Parts, Functions of[82]
Aviation Engine, Renault Air-cooled[507]
Aviation Engine, Stand for Supporting[414]
Aviation Engine, Sturtevant[515]
Aviation Engine, Thomas-Morse[521]
Aviation Engine Types[457]
Aviation Engine, Wisconsin[531]
Aviation Engines, Anzani Six-cylinder Water-cooled[459]
Aviation Engines, Anzani Ten- and Twenty-cylinder[468]
Aviation Engines, Anzani Three-cylinder[459]
Aviation Engines, Anzani Y Type[462]
Aviation Engines, Argus[545]
Aviation Engines, Austro-Daimler[557]
Aviation Engines, Benz[551]
Aviation Engines, Four- and Six-cylinder[88]
Aviation Engines, German[543]
Aviation Engines, Hall-Scott[539]
Aviation Engines, Hispano-Suiza[512]
Aviation Engines, Mercedes[543]
Aviation Engines, Overhauling[412]
Aviation Engines, Principal Parts of[80]
Aviation Engines, Starting Systems For[567]
Aviation Engines, Sunbeam[558]
B
Balanced Crank-shafts[318]
Ball-bearing Crank-shafts[319]
Battery Ignition Systems[571]
Baverey Compound Nozzle[137]
Bearings, Adjustment of[449]
Bearing Alignment[453]
Bearing Brasses, Fitting[450]
Bearing Parallelism, Testing[453]
Bearing Scrapers and Their Use[446]
Benz Aviation Engines[551]
Benz Engine Statistics[551]
Berling Magneto[174]
Berling Magneto, Adjustment of[180]
Berling Magneto Care[180]
Berling Magneto Circuits[176]
Berling Magneto, Setting[178]
Block Castings[234]
Blowing Back[269]
Bolts, Screwing Down[452]
Bore and Stroke Ratio[240]
Boyle’s Law[49]
Brayton Engine[48]
Breaker Box, Adjustment of[180]
Breast and Hand Drills[387]
Burning Out Carbon Deposits[421]
Bushings, Camshaft, Wear in[456]
C
Calipers, Inside and Outside[398]
Cam Followers, Types of[260]
Cams for Valve Actuation[259]
Cam-shaft Bushings[456]
Cam-shaft Design[313]
Cam-shaft Drive Methods[261]
Cam-shaft Testing[451]
Cam-shafts and Timing Gears[456]
Canton and Unné Engine[469]
Carbon, Burning out with Oxygen[421]
Carbon Deposits, Cause of[418]
Carbon Removal[419]
Carbon Scrapers, How Used[420]
Carburetion Principles[112]
Carburetion System Troubles[355]
Carburetor, Claudel[127]
Carburetor, Compound Nozzle Zenith[135]
Carburetor, Concentric Float and Jet Type[125]
Carburetor, Duplex Zenith[138]
Carburetor, Duplex Zenith, Trouble in[357]
Carburetor Installation, In Airplanes[148]
Carburetor, Le Rhone[501]
Carburetor, Master Multiple Jet[133]
Carburetor, Schebler[125]
Carburetor Troubles, How to Locate[354]
Carburetor, Two Stage[131]
Carburetor, What it Should Do[114]
Carburetors, Float Feed[122]
Carburetors, Multiple Nozzle[130]
Carburetors, Notes on Adjustment[151]
Carburetors, Reversing Position of[149]
Carburetors, Spraying[120]
Care of Dixie Magneto[188]
Castor Oil, for Cylinder Lubrication[205]
Castor Oil, Why Used In Gnome Engines[211]
Center Gauge[403]
Chisels, Forms of[384]
Christensen Air Starting System[567]
Circuits, Magnetic[161]
Classification of Engines[458]
Claudel Carburetor[127]
Cleaning Distributor[180]
Clearances Between Valve Stem and Actuators[261]
Combustion Chamber Design[239]
Combustion Chambers, Spherical[76]
Common Tools, Outfit of[378]
Comparing Two-cycle and Four-cycle Types[44]
Compound Cam Followers[260]
Compound Piston Rings[301]
Compressed Air Starting System[565]
Compression, Factors Limiting[69]
Compression, in Explosive Motors, Value of[68]
Compression Pressures, Chart for[72]
Compression Temperature[71]
Computations for Horse-power Needed[25]
Computations for Temperature[52]
Concentric Piston Ring[299]
Concentric Valves[255]
Connecting Rod Alignment, Testing[454]
Connecting Rod, Conventional[308]
Connecting Rod Forms[305]
Connecting Rod, Gnome Engine[305]
Connecting Rods, Fitting[449]
Connecting Rods for Vee Engines[310]
Connecting Rods, Le Rhone[498]
Connecting Rods, Master[310]
Constant Level Splash System[215]
Construction of Dixie Magneto[186]
Construction of Pistons[288]
Conversion of Heat to Power[58]
Cooling by Air[223]
Cooling by Positive Water Circulation[224]
Cooling, Heat Loss in[66]
Cooling System Defects[358]
Cooling Systems Used[223]
Cooling Systems, Why Needed[219]
Cotter Pin Pliers[384]
Crank-case, Conventional[320]
Crank-case Forms[320]
Crank-case, Gnome[323]
Crank-shaft, Built Up[315]
Crank-shaft Construction[315]
Crank-shaft Design[315]
Crank-shaft Equalizer[449]
Crank-shaft Form[315]
Crank-shaft, Gnome Engine[483]
Crank-shafts, Balanced[318]
Crank-shafts, Ball Bearing[319]
Cross Level[403]
Crude Petroleum, Distillates of[111]
Curtiss Aviation Engines[519]
Curtiss Engine Installation[328]
Curtiss Engine Repairing Tools[408]
Cutting Oil Grooves[448]
Cylinder Blocks, Advantages of[237]
Cylinder Block, Duesenberg[235]
Cylinder Castings, Individual[234]
Cylinder Construction[233]
Cylinder Faults and Correction[416]
Cylinder Form and Crank-shaft Design[238]
Cylinder Head Packings[417]
Cylinder Head, Removable[239]
Cylinder, I Head Form[248]
Cylinder, L Head Form[248]
Cylinder Oils[206]
Cylinder Placing[20]
Cylinder Placing in V Motor[99]
Cylinder Retention, Gnome[475]
Cylinder, T Head Form[248]
Cylinders, Cast in Blocks[235]
Cylinders, Odd Number in Rotary Engines[482]
Cylinders, Repairing Scored[423]
Cylinders, Valve Location in[245]
D
Defects in Cylinders[417]
Defects in Dry Battery[373]
Defects in Fuel System[354]
Defects in Induction Coil[373]
Defects in Magneto[372]
Defects in Storage Battery[372]
Defects in Timer[373]
Defects in Wiring and Remedies[373]
Die Holder[394]
Dies for Thread Cutting[395]
Diesel Motor Cards[67]
Diesel System[144]
Direct Air Cooling[228]
Dirigible Balloons[18]
Dismantling Airplane Engine[415]
Distillates of Crude Petroleum[111]
Division of Circle in Degrees[268]
Dixie Ignition Magneto[184]
Dixie Magneto, Care of[188]
Draining Oil From Crank-case[214]
Drilling Machines[386]
Drills, Types and Use[388]
Driving Cam-shaft, Methods of[262]
Dry Cell Battery, Defects in[373]
Duesenberg Sixteen Valve Engine[525]
Duesenberg Valve Action[255]
Duplex Zenith Carburetor[138]
E
Early Gnome Motor, Construction of[472]
Early Ignition Systems[155]
Early Types of Gas Engine[28]
Early Vaporizer Forms[120]
Eccentric Piston Ring[299]
Economy, Factors Governing[64]
Efficiency, Actual Heat[62]
Efficiency, Maximum Theoretical[61]
Efficiency, Mechanical[62]
Efficiency of Internal Combustion Engine[60]
Efficiency, Various Measures of[61]
Eight-cylinder Engine[95]
Eight-cylinder Timing Diagram[276]
Electricity and Magnetism, Relation of[162]
Electrical Ignition Best[156]
Electric Starting Systems[569]
Engine, Advantages of V Type[95]
Engine Base Construction[319]
Engine Bearings, Adjusting[443]
Engine Bearings, Refitting[442]
Engine Bed Timbers, Standard[330]
Engine, Four-cycle, Action of[38]
Engine, Four-cycle, Piston Movements in[40]
Engine Functions, Duration of[93]
Engine Ignition, Locating Troubles[353]
Engine Installation, Gnome[344]
Engine Installation, Anzani Radial[344]
Engine Installation, Hall-Scott[332]
Engine Installation, Rotary[342]
Engine Operation, Sequence of[84]
Engine Parts and Functions[80]
Engine Starts Hard, Ignition Troubles Causing[369]
Engine Stoppage, Causes of[347]
Engine Temperatures[221]
Engine Trouble Charts[369]
Engine Troubles, Cooling[358]
Engine Troubles, Hints For Locating[345]
Engine Troubles, Ignition[353]
Engine Troubles, Noisy Operation[359]
Engine Troubles, Oiling[357]
Engine Troubles Summarized[350]
Engine, Two-cycle, Action of[41]
Engines, Classification of[458]
Engines, Cylinder Arrangement[31]-[32]
Engines, Eight-cylinder V[95]
Engines, Four-cylinder Forms[88]
Engines, Graphic Comparison of[33]-[34]-[35]
Engines, Internal Combustion, Types of[30]
Engines, Multiple Cylinder, Power Delivery in[91]
Engines, Multiple Cylinder, Why Best[83]
Engines, Rotary Cylinder[107]
Engines, Six-cylinder Forms[88]
Engines, Twelve-cylinder[96]
Equalizer, Crank-shaft[449]
Exhaust Closing[270]
Exhaust Valve Design, Early Gnome[475]
Exhaust Valve Opening[270]
Explosive Gases, Mixtures of[56]
Explosive Motors, Inefficiency in[74]
Explosive Motors, Why Best[27]
F
Factors Governing Economy[64]
Factors Limiting Compression[70]
Faults in Ignition[352]
Figuring Horse-power Needed[21]
Files, Use and Care of[383]
First Law of Gases[49]
Fitting Bearings By Scraping[447]
Fitting Brasses[450]
Fitting Connecting Rods[449]
Fitting Main Bearings[448]
Fitting Piston Rings[439]
Float Feed Carburetor Development[124]
Float Feed Carburetors[122]
Force Feed Oiling System[218]
Forked Connecting Rods[310]
Four-cycle Engine, Action of[38]
Four-cycle Engine, Why Best[45]
Fourteen-cylinder Engine[474]
Four Valves Per Cylinder[284]
Friction, Definition of[302]
Fuel Feed By Gravity[116]
Fuel Feed by Vacuum Tank[117]
Fuel Storage and Supply[116]
Fuel Strainers, Types of[141]
Fuel Strainers, Utility of[140]
Fuel System Faults[354]
Fuel System Installation, Hall-Scott[336]
Fuel System, Gnome[490]
Fuel Utilization Chart[62]
G
Gas Engine, Beau de Rocha’s Principles[59]
Gas Engine Development[28]
Gas Engine, Early Forms of[48]
Gas Engine, Inventors of[29]
Gas Engine, Theory of[47]
Gases, Compression of[49]
Gases, First Law of[49]
Gases, Second Law of[50]
Gaskets, How to Use[452]
Gasoline, Air Needed to Burn[113]
Gas Engines, Parts of[80]
Gas Vacuum Engine, Brown’s[28]
German Airplane Motors[543]
German Gnome Type Engine[495]
Gnome Aviation Engine, Early Form[472]
Gnome Crank-shaft[483]
Gnome Cylinder, Machining[489]
Gnome Cylinder Retention[475]
Gnome Engine, Fuel, Lubrication and Ignition[490]
Gnome Engine, German Type[495]
Gnome Engine Installation[344]
Gnome Firing Order[482]
Gnome Fourteen-cylinder, Engine[474]
Gnome Fourteen-cylinder Engine Details[480]
Gnome Monosoupape, How to Time[278]
Gnome Monosoupape Type Engine[486]
Graphic Comparison of Engine Types[33]-[34]-[35]
Graphic Comparison, Two- and Four-cycle[46]
Gravity Feed System[116]
Grinding Valves[429]
H
Hall-Scott Aviation Engines[539]
Hall-Scott Engine Installation[332]
Hall-Scott Engine, Preparations For Starting[341]
Hall-Scott Engine Tools[410]
Hall-Scott Lubrication System[211]
Hall-Scott Statistic Sheet[544]
Heat and Its Work[54]
Heat in Gas Engine Cylinder[69]
Heat Given to Cooling Water[78]
Heat Loss, Causes of[74]
Heat Loss in Airplane Engine[221]
Heat Loss in Wall Cooling[65]
High Altitude, How it Affects Power[144]
High Tension Magneto[172]
Hints For Locating Engine Troubles[345]
Hints for Starting Engine[361]
Hispano-Suiza Model A Engine[512]
Horse-power Needed in Airplane[21]
Horse-power Needed, How Figured[22]
How An Engine is Timed[277]
I
Ignition, Electric[156]
Ignition, Elements of[157]
Ignition of Gnome Engine[490]
Ignition System, Battery[571]
Ignition Systems, Early[155]
Ignition System Faults[352]
Ignition, Time of[273]
Ignition, Two Spark[196]
I Head Cylinders[248]
Improvements in Gas Engines[29]
Indicating Meters, Engine Speed[563]
Indicating Meters, Oil and Air Pressure[563]
Indicator Cards, How To Read[66]
Indicator Cards, Value of[66]
Individual Cylinder Castings[234]
Induction Coil, Defects in[373]
Inefficiency, Causes of[74]
Inlet Valve Closing[272]
Inlet Valve Opening[270]
Installation, Airplane Engine[324]
Installation, Curtiss OX-2 Engine[328]
Installation, Hall-Scott Engine[332]
Installation of Rotary Engines[342]
Intake Manifold Construction[143]
Intake Manifold Design[142]
Internal Combustion Engine, Efficiency of[60], [62]
Internal Combustion Engines, Main Types of[30]
Inverted Engine Placing[325]
Isothermal Diagram[51]
Isothermal Law[48]
K
Keeping Oil Out of Combustion Chamber[303]
Knight Sleeve Valves[266]
L
Lag and Lead, Explanation of[268]
Lapping Crank-pins[445]
Lead Given Exhaust Valve[270]
Leak Proof Piston Rings[301]
Lenoir Engine Action[48]
Le Rhone Cams and Valve Actuation[500]
Le Rhone Carburetor[501]
Le Rhone Connecting Rod Assembly, Distinctive[498]
Le Rhone Engine Action[503]
Le Rhone Rotary Engine[495]
L Head Cylinders[248]
Liquid Fuels, Properties of[110]
Locating Carburetor Troubles[354]
Locating Engine Troubles[350]
Locating Ignition Troubles[353]
Locating Oiling Troubles[357]
Location of Magneto Trouble[181]
Losses in Wall Cooling[65]
Lost Power and Overheating, Summary of Troubles Causing[363]
Lubricants, Derivation of[204]
Lubricants, Requirements of[204]
Lubricating System Classification[208]
Lubricating Systems, Selection of[208]
Lubrication By Constant Level Splash System[215]
Lubrication By Dry Crank-case Method[218]
Lubrication By Force Feed Best[218]
Lubrication of Magneto[180]
Lubrication System, Gnome[490]
Lubrication System, Hall-Scott[211]
Lubrication System, Thomas-Morse[210]
Lubrication, Theory of[202]
Lubrication, Why Necessary[201]
M
Magnetic Circuits[161]
Magnetic Influence Defined[158]
Magnetic Lines of Force[161]
Magnetic Substances[158]
Magnetism, Flow Through Armature[166]
Magnetism, Fundamentals of[157]
Magnetism, Relation to Electricity[162]
Magneto, Action of High Tension[173]
Magneto Armature Windings[168]
Magneto, Basic Principles of[163]
Magneto, Berling[174]
Magneto, Defects in[372]
Magneto Distributor, Cleaning[180]
Magneto Ignition Systems[169]
Magneto Ignition Wiring[179]
Magneto Interrupter, Adjustment of[180]
Magneto, Low Voltage[168]
Magneto, Lubrication of[180]
Magneto Maintenance[180]
Magneto, Method of Driving[175]
Magneto Parts and Functions[167]
Magneto, The Dixie[184]
Magneto Timing[179]
Magneto, Timing Dixie[188]
Magneto, Transformer System[171]
Magneto Trouble, Location of[181]
Magneto, True High Tension[172]
Magneto, Two Spark Dual[177]
Magnets, Forms of[160]
Magnets, How Produced[162]
Magnets, Properties of[159]
Main Bearings, Fitting[448]
Manifold, Intake[143]
Master Multiple Jet Carburetor[133]
Master Rod Construction[310]
Maximum Theoretical Efficiency[61]
Meaning of Piston Speed[241]
Measures of Efficiency[61]
Measuring Tools[397]
Mechanical Efficiency[62]
Mercedes Aviation Engine[543]
Metering Pin Carburetor, Stewart[128]
Micrometer Caliper, Beading[405]
Micrometer Calipers, Types and Use[404]
Mixture, Effect of Altitude on[153]
Mixture, Proportions of[151]
Mixture, Starvation of[149]
Monosoupape Gnome Engine[486]
Mother Bod, Gnome Engine[305]
Motor Misfires, Carburetor Faults Causing[374]
Motor Misfires, Ignition Troubles Causing[370]
Motor Races, Carburetor Faults Causing[374]
Motor Starts Hard, Carburetor Faults Causing[374]
Motor Stops In Flight, Carburetor Faults[374]
Motor Stops Without Warning, Ignition Troubles[370]
Multiple Cylinder Engine, Why Best[83]
Multiple Nozzle Vaporizers[129]
Multiple Valve Advantages[286]
N
Noisy Engine Operation, Causes of[359]
Noisy Operation, Carburetor Faults Causing[374]
Noisy Operation, Summary of Troubles Causing[365]
O
Off-set Cylinders, Reason for[243]
Oil Bi-pass, Function of[213]
Oil, Draining From Crank-case[214]
Oil Grooves, Cutting[448]
Oil Pressure in Hall-Scott System[214]
Oil Pressure Relief Bi-pass[213]
Oiling System Defects[357]
Oils for Cylinder Lubrication[206]
Oils for Hall-Scott Engine[215]
Oils for Lubrication[204]
Operating Principles of Engines[37]
Oscillating Piston Pin[295]
Otto Four-cycle Cards[67]
Overhauling Aviation Engines[412]
Overhead Cam-shaft Location[252]
Overheating, Causes of[359]
P
Panhard Concentric Valves[255]
Petroleum, Distillates of[111]
Piston, Differential[291]
Piston Pin Retention[293]
Piston Ring Construction[298]
Piston Ring Joints[299]
Piston Ring Manipulation[438]
Piston Ring Troubles[437]
Piston Rings, Compound[301]
Piston Rings, Concentric[299]
Piston Rings, Eccentric[299]
Piston Rings, Fitting[439]
Piston Rings, Leak Proof[301]
Piston Rings, Replacing[441]
Piston Speed in Airplane Engines[241]
Piston Speed, Meaning of[241]
Piston Troubles and Remedies[436]
Pistons, Aluminum[296]
Pistons, Details of[288]
Pistons for Two-cycle Engines[289]
Positive Valve Systems[283]
Power, Affected by High Altitude[145]
Power Delivery in Multiple Cylinder Engines[91]
Power, How Obtained From Heat[58]
Power Needed in Airplane Engines[21]
Power Used in Airplanes[26]
Precautions in Assembling Parts[452]
Pressure Relief Fitting[213]
Pressures and Temperatures[63]
Principles of Carburetion[112]
Principles of Magneto Action[163]
Properties of Cylinder Oils[207]
Properties of Liquid Fuels[110]
Pump Circulation Systems[226]
Pump Forms[226]
R
Radial Cylinder Arrangement[103]
Reading Indicator Cards[67]
Reamers, Types and Use[392]
Reassembling Parts, Precautions in[451]
Removable Cylinder Head[239]
Renault Air Cooled Engine[507]
Renault Engine Details[508]
Repairing Scored Cylinders[423]
Requisites for Best Power Effect[59]
Reseating and Truing Valves[426]
Resistance, Influence of[22]
Rotary Cylinder Engines[107]
Rotary Engine, Le Rhone[495]
Rotary Engines, Castor Oil for[211]
Rotary Engines, Installing[342]
Rotary Engines, Why Odd Number of Cylinders[109]
Rotary Engines, Why Odd Number of Cylinders Is Used[482]
S
S. A. E. Engine Bed Dimensions[330]
Salmson Nine-cylinder Engine[470]
Scissors Joint Rods[310]
Scored Cylinders, Repairing[422]
Scrapers, Types of Bearing[446]
Scraping Bearings to Fit[447]
Second Law of Gases[50]
Sequence of Engine Operation[84]
Shebler Carburetor[125]
Six-cylinder Timing Diagram[275]
Sixteen Valve Duesenberg Engine[525]
Skipping or Irregular Operation, Causes of[367]
Sliding Sleeve Valves[266]
Spark Plug Air Gaps, Setting[197]
Spark Plug, Design of[193]
Spark Plug, Mica[194]
Spark Plug, Porcelain[193]
Spark Plugs, Defects in[371]
Spark Plugs for Two Spark Ignition[197]
Spark Plug, Special for Airplane Engine[199]
Spark Plug, Standard S. A. E.[195]
Spherical Combustion Chambers[76]
Splash Lubrication[215]
Split Pin Remover[384]
Spraying Carburetors[120]
Springless Valves[280]
Springs, for Valves[263]
Spring Winder[384]
Sprung Cam-shaft, Testing[451]
Stand for Supporting Engine[414]
Starting Engine, Hints for[361]
Starting Hall-Scott Engine[341]
Starting System, Christensen[567]
Starting Systems, Compressed Air[565]
Starting Systems, Electric[569]
Statistics, American Engines[546], [547]
Statistic Sheet, Hall-Scott Engines[544]
Statistics of Benz Engine[551]
Steam Engine, Efficiency of[59]
Steam Engine, Why Not Used[27]
Steel Scale, Machinists’[399]
Stewart Metering Pin Carburetor[128]
Storage Battery, Defects in[372]
Stroke and Bore Ratio[240]
Sturtevant Model 5A Engine[515]
Summary of Engine Types[30]
Sunbeam Aviation Engines[588]
Sunbeam Eighteen-Cylinder Engine[561]
T
Tap and Die Sets[397]
Taps for Thread Cutting[394]
Tee Head Cylinders[247]
Temperature Computations[52]
Temperatures and Explosive Pressures[64]
Temperatures and Pressures[63]
Temperatures, Operating[221]
Testing Bearing Parallelism[453]
Testing Connecting Rod Alignment[454]
Testing Fit of Bearings[446]
Testing Sprung Cam-shaft[451]
Theory of Gas Engine[47]
Theory of Lubrication[203]
Thermo-syphon Cooling System[227]
Thomas-Morse Aviation Engine[521]
Thomas-Morse Lubrication System[210]
Thread Pitch Gauge[403]
Time of Ignition[273]
Timer, Defects in[373]
Times of Explosion[56]
Timing Dixie Magneto[188]
Timing Gears, Effects of Wear[456]
Timing Magneto[179]
Timing Valves[267]
Tool Outfits, Typical[408]
Tools for Adjusting and Erecting[378]
Tools for Bearing Work[445]
Tools for Curtiss Engines[408]
Tools for Grinding Valves[430]
Tools for Hall-Scott Engines[410], [411]
Tools for Measuring[397]
Tools for Reseating Valves[426]
Trouble in Carburetion System[355]
Trouble, Location of Magneto[181]
Troubles, Engine, How to Locate[345]
Troubles, Ignition[353]
Troubles in Oiling System[357]
True High Tension Magneto[172]
Twelve-Cylinder Engines[96]
Two-and Four-Cycle Types, Comparison of[44]
Two-Cycle Engine Action[41]
Two-Cycle Three-Port Engine[43]
Two-Cycle Two-Port Engine[42]
Two-Spark Ignition[196]
Two-Stage Carburetor[131]
Types of Aircraft[17]
Types of Internal Combustion Engines[30]
V
Vacuum Fuel Feed, Stewart[119]
Value of Compression[69]
Value of Indicator Cards[66]
Valve Actuation, Le Rhone[500]
Valve Design and Construction[256]
Valve-Grinding Processes[429]
Valve-Lifting Cams[259]
Valve-Lifting Plungers[260]
Valve Location Practice[245]
Valve Operating Means[252]
Valve Operating System, Depreciation in[433]
Valve Operation[258]
Valve Removal and Inspection[424]
Valve Seating, How to Test[432]
Valve Springs[263]
Valve Timing, Exhaust[270]
Valve Timing, Gnome Monosoupape[278]
Valve Timing, Intake[270]
Valve Timing, Lag and Lead[269]
Valve Timing Procedure[277]
Valve Timing Practice[267]
Valves, Electric Welded[258]
Valves, Flat and Bevel Seat[257]
Valves, Four per Cylinder[284]
Valves, How Placed in Cylinder[247]
Valves in Cages[249]
Valves in Removable Heads[249]
Valves, Materials Used for[258]
Valves, Reseating[426]
Vaporizer, Simple Forms of[120]
V Engines, Cylinder Arrangement in[102]
Vernier, How Used[401]
W
Wall Cooling, Losses in[65]
Water Cooling by Natural Circulation[227]
Water Cooling System[224]
Weight of Airplane Motors[21]
Wiring, Defects in[373]
Wiring Magneto Ignition System[179]
Wisconsin Engines[531]
Wrenches, Forms of[380]
Wristpin Retention[293]
Wristpin Retention Locks[295]
Wristpin Wear and Remedy[442]
Z
Zenith Carburetor, Action of[137]
Zenith Duplex Carburetor, Troubles in[356]
Zenith Carburetor Installation[139]

LIST OF ILLUSTRATIONS