Electric powered flying model airplane

An electric powered model airplane comprising:

• a motor mounted in said airplane for driving a propeller;
• a rechargeable battery mounted in said airplane for energizing said motor, said battery having a negative and a positive terminal;
• a removable source for recharging said rechargeable battery from outside said airplane, said removable source being an electric battery having a permanent negative and a positive terminal;
• and
• first, second and third conductive rods mounted in said airplane forming the sole electrical interconnection between said motor, said rechargeable battery and said removable recharging source, said first and said second conductive rods having adjacent ends forming contacts for a switch to selectively connect said motor to said rechargeable battery, said second conductive rod directly contacting both the positive terminal of said rechargeable battery and the positive terminal of said removable recharging source, and said third conductive rod directly contacting both the negative terminal of said rechargeable battery and the negative terminal of said removable recharging source.

An electric powered model airplane comprising:

• a pair of control lines for controlling the flight of said airplane from a remote location;
• a bellcrank mounted within said airplane, attached to said pair of control lines and connected to adjust the position of an elevator of said airplane;
• a battery mounted within said airplane;
• an electric motor mounted within said airplane for driving the propeller thereof, said motor energized by said battery;
• a switch mounted within said airplane electrically connected to said electric motor and said battery to selectively interconnect the motor to the battery, said switch comprising:
• a stationary contact;
• and
• a resilient, movable contact, said resilient contact biased toward a closed circuit configuration;
• and
• a switch actuator extending from a position adjacent said bellcrank to a position outside said airplane, said actuator having a first position maintained by the bias of said resilient, movable contact for opening said switch and a second position for closing said switch, said switch actuator positioned to be moved by said bellcrank from said first to said second position but not from said second to said first position.

A rechargeable electric powered model airplane, comprising:

• a pair of fuselage indentations adjacent one another;
• a pair of electrical conductors, one positioned in each of said indentations;
• a rechargeable battery mounted within said airplane and connected to said pair of electrical conductors;
• a recharging battery including terminals for extending into said pair of indentations, said terminals mounted unsymmetrically on said recharging battery;
• and
• means on said airplane removed from said indentations for prohibiting reverse polarity contact of said recharging battery terminals with said electrical conductors.

A rechargeable electric powered model airplane conprising:

• a rechargeable battery mounted within said airplane and connected to drive said airplane;
• a pair of electrical conductors attached to said rechargeable battery and extending outside the fuselage of said model airplane at spaced locations;
• a recharging battery removable from said airplane, said recharging battery including a pair of terminals in the form of resilient springs, said terminals being separated by a distance equal to the separation of said spaced locations to permit said recharging battery to be held against said pair of electrical conductors for recharging said rechargeable battery, said terminals mounted unsymmetrically on said recharging battery;
• and
• means positioned on said airplane for contacting said recharging battery and thereby prohibiting reverse polarity contact of said recharging battery terminals with said electrical conductors when said pair of resilient spring terminals are placed on said pair of conductors in a reverse orientation, said means clearing said battery when said pair of resilient spring terminals are placed on said pair of conductors in a proper orientation.