Chapter One Section D

David Schwartz

Designed early all-metal airship

Schwartz airship material

Constructed with aluminum frame

Schwartz engine power

Used a 12 horsepower engine

Schwartz propellers

Airship equipped with three propellers

Schwartz significance

Inspired Count Zeppelin’s rigid airship designs

Count Ferdinand von Zeppelin

Leading rigid airship designer

Zeppelin background

Retired cavalry officer concerned with military aviation

Zeppelin goal

Create long-range aircraft capable of carrying crew and weapons

Zeppelin design type

Built rigid airships with internal framework

Zeppelin airship name

Airships designated as LZ (Luftschiff Zeppelin)

Zeppelin advantage

Rigid structure maintained shape independent of gas pressure

Zeppelin innovation

Enabled larger size, greater lift, and longer endurance

DELAG

World’s first airline

DELAG aircraft type

Operated Zeppelin rigid airships

DELAG fleet size

Used seven Zeppelin airships

DELAG passenger count

Transported about 34,000 passengers

DELAG service purpose

Provided commercial passenger flights

DELAG significance

Demonstrated viability of airships for public transportation

DELAG speed

Airships traveled at about 40 miles per hour

Walter Wellman

Chicago journalist and airship explorer

Wellman expedition goal

Attempted North Pole exploration by airship

Wellman 1907 attempt

First motorized flight in the Arctic

Wellman expedition challenge

Engine problems prevented reaching the Pole

Wellman 1909 attempt

Lost dragline and required towing back to base

Wellman Atlantic attempt

Attempted transatlantic flight by airship

Wellman communication milestone

Sent first wireless message from airship to shore

Wellman significance

Demonstrated communication potential of airships

Airship purpose

Provide long-range, controlled lighter-than-air travel

Airship advantage

Could fly in poor weather and carry heavy loads

Airship military value

Potential to carry bombs, arms, and reconnaissance crew

Airship structural benefit

Rigid framework allowed larger gas cells and greater lift

Airship exploration role

Used for Arctic exploration and long-distance expeditions

Airship commercial role

Enabled early passenger airline service

Airship engineering challenge

Required strong structure to resist wind and weather

Airship innovation impact

Transitioned aviation from balloons to engineered aircraft