Unless you're referencing some other "improvisations" I feel compelled to point out that Estes motors use Black Powder, not sugar / potassium nitrate.sandman wrote:i dont know how many joules are in the rocket ignitors but it is obviously enough to ignite sugar and potassium nitrate,
As for the igniters themselves. Typically something like that would be a mixture of FFFF BP and dextrin over a nichrome wire.