Drt_trkr
Well-Known Member
- Joined
- Feb 12, 2010
- Messages
- 53
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Hello to all!!!
As I'm sure you can see i am new to the forum and fairly new to model rocketry. I have of course built the kits way back when in school but now have found myself interested in building my own. With the rocket about complete I have run into an issue that I have concern about and was hoping i could get some info from the more experienced rocketeers!!
So here is my issue i need advice with... I have built a rocket that is about 3'6" tall and weighs approx. 2.5 lbs. I had the idea to use 4 of the Estes D12-5 engines to power the rocket. Now I am second guessing that the weight may be too great for the 4 engines. Now keep in mind I am new and do not quite understand how to determine the thrust to weight ratio.
I had originally wanted to build my own Engine for the rocket but found that Potassium Nitrate is a little hard to get... (unless I'm not looking in the right place) So I resorted to the smaller pre-made engines and hoping 4 D12-5 will do the trick... Any advise???
Thank you for your help!!
Drt_trkr
As I'm sure you can see i am new to the forum and fairly new to model rocketry. I have of course built the kits way back when in school but now have found myself interested in building my own. With the rocket about complete I have run into an issue that I have concern about and was hoping i could get some info from the more experienced rocketeers!!
So here is my issue i need advice with... I have built a rocket that is about 3'6" tall and weighs approx. 2.5 lbs. I had the idea to use 4 of the Estes D12-5 engines to power the rocket. Now I am second guessing that the weight may be too great for the 4 engines. Now keep in mind I am new and do not quite understand how to determine the thrust to weight ratio.
I had originally wanted to build my own Engine for the rocket but found that Potassium Nitrate is a little hard to get... (unless I'm not looking in the right place) So I resorted to the smaller pre-made engines and hoping 4 D12-5 will do the trick... Any advise???
Thank you for your help!!
Drt_trkr