Impressive cut section of the Lunar Module Descent Engine's quartz combustion chamber, approximately measuring 6 x 4 x 1.75, and attached to a wooden base with descriptive plaque. In fine condition. From Apollo 15 onwards, the LMDE was fitted with a 10-inch skirt extension and a quartz liner for the combustion chamber. These modifications, plus an increase in LM Descent stage propellant mass from 18,000 to 19,600 lb., allowed longer burn times to compensate for the increased LM weight.
