mort25

Sorry - I misread your quesiton.

Generally - it's not just a question of fit. Some rockets will require a starting thrust which is higher in order to lift them up at all. Others require shorter or longer delay - if you release your recovery device when the rocket still move forward at very high speed - it can just tear it apart.

The sure way to do this is to run a simulation on Rocksim/SpaceCad. While not 100% accurate - it will predict which motors are better for the rocket.

Nice one thank you I will have a look at those!

Motors for rocketry come with Thurst information on the motor. It most of the time will say something like A8-3 (Letter Number - Number). And no - you can not just "put them in in they fit".

Post the numbers, we will refer you to the right location to look for the info.

I dont have any information about the rockets really I was wondering if there was some sort of way of working out what motors can be used?

Sounds like its an Estes Industries Pro series Impulse (early 90's rocket)
recommended motors are:
D12-5 x2, D12-7 x 2, E15-6 x2, E15-8 x2

Although E15 have been replaced by E9's which have much less push than the old E15.
The reviews i've read about this rocket suggest that a pair of D12-5 are best.

If it is an estes impulse then it should be over three feet tall, make sure that you have not got a damaged rocket that has had a foot of body tube cut off - check stability before you fly.

That sounds like it! It is over 3' tall now Ive been and had a good look at it! I got a load of rockets off a chap for a bargin price and just sorting them out! Im a bit new to it all so any tips would be good!

Try deepsky model shop, they charge £2 but you have to pay a courier to gat it sent, which is expensive, so its best to buy lots of motors at the same time etc

and as for the fourth method -flash pan -don't -ever.

Would a local gun shop sell it?

Not too sure where I would get Quick Match from?