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CobaltWolf / Bluedog-Design-Bureau

Stockalike parts pack for Kerbal Space Program
https://forum.kerbalspaceprogram.com/index.php?/topic/122020-131mostly-functional-141-bluedog-design-bureau-stockalike-saturn-apollo-and-more-v142-%D0%B0%D1%82%D0%BB%D0%B0%D1%81-1feb2018/
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LR87 AJ-9 Patch fix #1486

Closed KochieBR closed 4 months ago

KochieBR commented 4 months ago

The patch used the aj11 model, edited the patch to use the aj5 model and adjusted the waterfall config too

Pappystein commented 4 months ago

@KochieBR , I am of two minds on this.

1) the early LR87-AJ-9s used LR87-AJ-5 bells. So for early AJ-9s your choice is right 2) However, Most of the production LR87-AJ-9s were truncated tube-welded nozzles (not as truncated as the latter LR87-AJ-11) with a brown Fiber extension similar to the LR87-AJ-11 (from 8:1 expansion to 12:1 expansion ratio) The last 3-5 flown LR87-AJ-9s were flown with LR87-AJ-11 bells and gimbal actuators (which needed to be longer because the LR87-AJ-11s are 12:1 and 15:1 at this point) So the AJ-9 was a completely transitory model with multiple "looks"

As a point of reference the LR87-AJ-11 has the tube-walled portion cut back to 6:1 ratio with a much bigger Fiber extension.

Also when compared to other more famous rocket motors, the LR87-AJ-9's changes compare (thrust wise) with the constant growth in the H-1 engines used on Saturn IB. The major difference being there are no "long distance viewable" changes on the H-1 like there was the LR87-AJ-9

That being said I will follow whatever the Devs think is right :D

Rodg88 commented 4 months ago

It's certainly viable to have either option, but without adding more subtypes, the aj5 model might be best.