Erik Carlstrom

*EVA SCENERIO OVERVIEW

EVA 31 was done with the purpose to scout for a place and route to a measurable stratographic section. This is important to get a good idea of the local geology and to assist constructing a geological cross section of the area.

DATE: 03-14-02

*EVA Highlights (EVA CDR)

Some of the highlights of the EVA were some rather beautiful scenery and interesting geological formations. There were some visitors to the hab, so we allowed them to take pictures of us putting the flag back up (which was taken down and brought into the hab yesterday due to the high winds). In order to be ecologically sound, we would travel in the washes in order to have the least impact on the land. Several images were taken of formations that might be visited by the geologists. The ATV’s or one of us were used for scale in the images. The weather was quite cold (approx. 4 degrees C). It was windy, but nowhere near the magnitude of the previous day.

PRE EVA OPERATIONS

Nominal suit donning and preparation was done. A mirror for the leading ATV rider, watches attached to the suit and pencils to press tiny buttons are standard now. Both EVA members were equipped similarly.

AIRLOCK INGRESS/DEPRESS

Nominal ingress and depress. Radio check on handsets worked nominally.

HAB EVA MONITORING

POST EVA INGRESS AND CLEANUP

A vacuum clean was due for suits upon return.

EVA25:
Nominal ingress and cleanup.

EVA26:
Nominal ingress and cleanup

EVA CREW: COMMENTS/OBSERVATIONS/LESSONS-LEARNED

EVA CDR: The Automatic ATV has tire pressure problems. The tire was pumped full of air on Monday, and is close to being flat now. It is imperative that an air compressor be accessible by the crew. That way we can deal with crew safety on EVA’s.

EVA MDRS1: Arm mirrors work great as rear view mirrors on ATV’s. These should be required gear on all ATV EVA’s, particularly off road. Also, a rather steep hill was climbed on foot in order to test it’s potential as a measurable stratographic section for later visit. The suit accommodated climbing quite well, and the air delivery fans provided sufficient air for the prolonged cardiovascular exercise.