Originally Posted by What

The MRJ 70 with the geared engine is likely to carry similar CASM to the CRJ 700 that it would replace. United and Delta have room for 204 combined 70 seat RJs under the SCOPE clause. At some point the CRJ700s and E175 will need to be replaced and the E170 will not be made in a geared engine variant.

*i would have to verify that the 70 seat RJs don't have a lower MTOW requirement under SCOPE.

The 70 seat variant isn't likely to be delivered for 3 to 5 years down the road... By that time some of these 700s will be 20 years old.

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