March 5: The Museum in Washington, DC will open today. Due to weather, the Udvar-Hazy Center in Chantilly, VA is closed.

Variometer, Balloon, H.C. Gray

Variometer, Balloon, H.C. Gray

     

Physical Description:
From Capt. H.C. Gray balloon flight; ascent-descent indicator.

Country of Origin
United States of America

Type
INSTRUMENTS-Flight Management

Physical Description:
From Capt. H.C. Gray balloon flight; ascent-descent indicator.

Country of Origin
United States of America

Type
INSTRUMENTS-Flight Management

ID: A19280016000