That's how I did mine. Just had to grind out a spot for the engine hook. I used no additional nose weight. Flights so far have been straight and true.
Anyone have good luck putting a D motor mount in these, the C mount just seems under powered for how heavy it is, 525 ft with the C.
Think this will be my next build, after I get a few more out of the primer/paint que.
You will get more performance out of the re-loadable motors. Good point.I ask myself that question every time I build an 18mm MMT bird, and the trade-off goes as follows:
24mm D12 motor is MUCH (2x) heavier than 18mm C, or 18mm Quest D. Details here: https://www.rocketryforum.com/threads/estes-screaming-eagle-build.158704/#post-1989625
So if you convert to 24mm MMT, you also need to add ~+25-30g (+1 oz) of extra weight to the nose cone. One (1) Estes clay square is about 7g, so figure stuffing 3-4 of those clay squares into the nose cone. If you want to try flying longer and heavier E-motors, you will need yet more ballast!
That means that you will make the model permanently at least +1 oz heavier, and it will never fly on Estes C6-3's again.
Basically, 24mm MMT "upgrade" is a one-way street. You will never fly on 18mm Estes motors again if you go with 24mm MMT. The upgraded model will be to heavy for them.
On the other hand, you have a selection of 18mm D-motors from Quest (single use) and Aerotech (reloadable) that allow you to fly 18mm D's with a lighter/stock configuration.
For me, keeping it light and versatile with 18mm MMT's is more attractive.
YMMV.
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