Quantcast

29mm Deuce

The Rocketry Forum

Help Support The Rocketry Forum:

ben_ullman

Well-Known Member
Joined
Jan 18, 2009
Messages
1,509
Reaction score
0
Well, as most of you know the Deuce I has at NARAM 50 crashed. I made a bad choice by flying 2 G Ellis Mountain motors in it and when a camera was put on it, I listend to the RSO who seemed to have no idea what he was talking about and wanted us to move the camera lower to worry about the CP. Im worried about the CG!!!!

So I am now rebuilding it. I am going to try and redo the MM section but I might just rebuild it. Its pretty far gone ;) the nosecone is good and my 29mm Retainers are fine. Other than that I think I will rebuild it.

Pics to follow tonight


Ben
 

MaxQ

Tripoli 2747
Joined
Jan 18, 2009
Messages
4,411
Reaction score
58
Location
Central Viginia - USA
<wanted us to move the camera lower to worry about the CP.>

More weight forward is always a safer play...

More weight rearward usually raises questions...which is why clustering lots of motors or going to bigger, heavier motors is usually something to verify with stability checks.

There is an old saying in RC aircraft flying...a nose heavy plane will fly, just not well well.
A tail heavy plane will fly.....................................once.


Well, as most of you know the Deuce I has at NARAM 50 crashed. I made a bad choice by flying 2 G Ellis Mountain motors in it and when a camera was put on it, I listend to the RSO who seemed to have no idea what he was talking about and wanted us to move the camera lower to worry about the CP. Im worried about the CG!!!!

So I am now rebuilding it. I am going to try and redo the MM section but I might just rebuild it. Its pretty far gone ;) the nosecone is good and my 29mm Retainers are fine. Other than that I think I will rebuild it.

Pics to follow tonight


Ben
 

ben_ullman

Well-Known Member
Joined
Jan 18, 2009
Messages
1,509
Reaction score
0
Well, I intended to go with 2 H97 Black Jacks. I should have stuck to the plan. This is the fault of the vendors there, he told me how cool a 5 sec burn would look in that Deuce, I listened :p

Ben
 

kelltym88

Well-Known Member
Joined
Jan 18, 2009
Messages
3,865
Reaction score
6
You can't blame the vendors. Only you how you built your rocket, so only you should know what will be best for it. I know in deciding which motors to use for my Manta Bomber, I did lots of research, compared motor combinations based on weight and so on. But I knew how I built and how heavy it was and so on. So the point is, if you know what motors you think are best for that rocket, then you are probably correct.
 

ben_ullman

Well-Known Member
Joined
Jan 18, 2009
Messages
1,509
Reaction score
0
You can't blame the vendors. Only you how you built your rocket, so only you should know what will be best for it. I know in deciding which motors to use for my Manta Bomber, I did lots of research, compared motor combinations based on weight and so on. But I knew how I built and how heavy it was and so on. So the point is, if you know what motors you think are best for that rocket, then you are probably correct.
I know its my choice. I was kidding about the vendors.

Ben
 

jj94

Well-Known Member
Joined
Jan 18, 2009
Messages
3,980
Reaction score
0
So where are the pics your promised last night?;)
 

ben_ullman

Well-Known Member
Joined
Jan 18, 2009
Messages
1,509
Reaction score
0
So where are the pics your promised last night?;)
I went to get on putfile and I can't remember my username/password! :eek:

Ill get to them tonight. Its the same Deuce as before, just using PML tubing!

Ben
 
Top