There are some new items on the Engine Survey page. Qualification testing on the Hybrid Port engines is complete and posted. Results for the 1/2A4, A7, 3/4B7, B7, 3/4C6, and C6 are given in a drawing and .eng files. The .eng files show slightly over the impulse limits on some of the engines. I did not stop to adjust the powder to keep all under the limits for impulse.
We are pleased with the results.

The hybrid port has a slightly deeper drill than standard to get the 18N peak. This is still not as high as the B14, B8, or C5 from the early days, but is higher than most engines in this class sold today. Now we have to decide whether to release the standard 11N peak as well as the hybrids or just release the hybrids and avoid the confusion.

A new .eng viewer is also included to analyze the results.

Feedback and comments are welcome!

__________________
Carl McLawhorn
NAR#4717 L2
semroc.com