This is a fan for producing a directed wind for aerodynamic investigations. The apparatus is mounted on a wooden base. It consists of a large conical metal tube, which narrows at the front end. Both the front and back ends of the conical shape are covered with a metal grille. At the back end there is an electric engine encased in a metal box perforated with holes. On the top of the box is a sliding adjuster with a large black knob. Next to the adjuster is a paper scale indicating settings of 1 through 9. Fixed to the wooden base between the metal box and the fan is a smaller black-cased box, a power converter, into which a black electricity cable is connected.
Accession Number: 2016.zoo.30
Alternative Name: Wind Tunnel Fan
Primary Materials: Metal, Wood, Plastic
On the wooden base, on an embossed sticker: “ZOO . 220 RM . 138”
On top of the metal conical fan body, on a piece of paper:
“AIR VELOCITY TURBULENCE
1 3.88 .004
2 4.46 .004
3 5.13 .005
4 5.98 .003
5 7.01 .003
6 8.01 .009
7 10.18 .008
8 12.05 –
9 14.37 -”
On a sticky note stuck on the conical body of the fan: “D”
On a metallic label on the power converter: “HAMMOND
MFG. CO LTD
TYPE CL. VA.
X A 200
PRI. VOLTS CY
On the wooden base of the fan, by the box that holds the sliding adjuster:
“VOLTS – 240
Hz – 50
VA – 200
PHILIP HARRIS LTD
At the base of the sliding adjuster, a screwed on sign: “START”
Next to the the sliding adjuster knob, a paper scale graduated with numbers between 1-9.
As an indentation in the end of the metal box that holds the sliding adjuster knob, “D195”
Dimensions (cm): L=82cm x W=31.8cm x H=35cm
This object is a directed fan that can produce airflow at different speeds for conducting aerodynamics investigations.
Good. On the body of the fan at the narrower end there are some minor indentations. The object is dusty and has scratches across it from use. The paper label indicating the levels at which the fan can be set is coming away from the metal on which it was stuck.
2016.zoo.21, 2016.zoo.22, 2016.zoo.24.1-2, 2016.zoo.25.1-2, 2016.zoo.26.1-32, 2016.zoo.27, 2016.zoo.28
Manufacturer: Philip Harris Ltd.
Date of Manufacture: 1970s
This object was collected from the former Zoology Department, where it was apparently used in basic aerodynamic investigations for a class numbered ZOO220.
Additional Information and References: