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- Jul 29, 2014
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If you happen to have some D2.3 18mm reloads in your motor stash, I suggest a quick inspect of the propellant grains for a possible glitch.
While at NARAM, I noticed that my 12 pack of D2.3 purchased in April or May of this year had a production glitch. All 12 of the propellant grains had the ignition slot at the wrong end of the grain, flush to the end of the cardboard liner and not at the other end that forms a small gap to create part of the combustion chamber. These tiny reload grains come already in the outer cardboard liner.
Would not be an issue if it were possible to slide the propellant inside the liner into the correct location, but it fits far too tight to move. I damaged one trying to do that.
Luckily I was able to borrow a proper D2.3 at NARAM and was able to fly my new 18mm Black Horse spaceplane model. Love this little load in my 5.5 oz model and plan to build one of two other 18mm RC RGs to take advantage of it.
Someone else at NARAM mentioned that they had a batch of incorrectly formed D2.3s like this and that Aerotech promptly replaced them. I finally had a chance to to write AT last week and tell them about my problem. I am sure AT will fix this quickly with their normal excellent product support.
Just wanted to mention this so the few of us that use this load and read this forum would have a chance to check their stock and not get caught unable to fly at a launch.
While at NARAM, I noticed that my 12 pack of D2.3 purchased in April or May of this year had a production glitch. All 12 of the propellant grains had the ignition slot at the wrong end of the grain, flush to the end of the cardboard liner and not at the other end that forms a small gap to create part of the combustion chamber. These tiny reload grains come already in the outer cardboard liner.
Would not be an issue if it were possible to slide the propellant inside the liner into the correct location, but it fits far too tight to move. I damaged one trying to do that.
Luckily I was able to borrow a proper D2.3 at NARAM and was able to fly my new 18mm Black Horse spaceplane model. Love this little load in my 5.5 oz model and plan to build one of two other 18mm RC RGs to take advantage of it.
Someone else at NARAM mentioned that they had a batch of incorrectly formed D2.3s like this and that Aerotech promptly replaced them. I finally had a chance to to write AT last week and tell them about my problem. I am sure AT will fix this quickly with their normal excellent product support.
Just wanted to mention this so the few of us that use this load and read this forum would have a chance to check their stock and not get caught unable to fly at a launch.
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