Reviews : Estes D12-3 Standard Model Rocket Engines (2)

I like to use the D size when I have a bigger rocket and want some altitude. My last launch went to so that after the chute opened my rocket sailed for a good quarter mile. The 3 second delay allows early chute deployment so you can watch your rocket return under the canopy of your chute. If you have the space for a higher altitude launch, I say go for it.

I use these for all my heavier D sized rockets and many of my E rockets. the shorter delay mates well for this application. If your launching a really light weight D rocket look to the longer delays but for the larger stuff these are perfect.

These are excellent for rockets that fly on D & E motors when you're on a field that's too small to handle the E load. The trust curve shows the same numbers as the E9, but with a bit shorter burn time.

Good motor over all, nothing special about it. If your looking for a motor to use in a 10 oz rocket, D12-3 is the motor.

Sends my Estes V2 to about 500'. No duds or cato. Nice gateway drug to mid-power rockets....

A Good engine for the first flight of E enabled rockets with the use of a spacer.

I launched my payloader rocket twice on one of these and it worked very well.

Great engines, low price and fast shipping. Can't wait to use them

Have not used these yet, plan to on our next flight

Great as always, plenty of pop for bigger rockets.