Quantcast

Cosmodrome Black Brant 2 Nosecone

The Rocketry Forum

Help Support The Rocketry Forum:

jedgberi

Member
Joined
Sep 23, 2014
Messages
9
Reaction score
0
I have a 2.6 inch Black Brant 2 that is almost completely finished. The nosecone fits so loosely that there's no friction to hold it to the body tube. What techniques do you use to tighten the fit? I've used masking tape in the past, but I would like to avoid that solution if possible.

Jarred
 

dr wogz

Fly caster
Joined
Feb 5, 2009
Messages
6,120
Reaction score
1,297
Location
Land of Poutine!
Masking tape. that's been my 'go to'.. you could glue paper wraps to build up the diameter..
 

EXPjawa

Well-Known Member
Joined
Jan 27, 2015
Messages
2,205
Reaction score
57
Location
Finger Lakes, NY
Masking tape has the advantage of being adjustable, should the body tube swell with weather changes...
 

cosmodrome

Trust me, It'll fly!
TRF Sponsor
TRF Supporter
Joined
Jan 18, 2009
Messages
394
Reaction score
52
I've found that since my workshop is not humidity controlled sometimes the cones are a little snug or loose when the customer gets them. I've measured a piece of balsa at different times of the year and there is a slight expansion/contraction. That along with the fact that I hand-sand the cones after turning them also introduces some variance. Two methods I use to get the fit just right is masking tape or epoxy. If you coat the shoulder in epoxy and then sand you will get a more robust shoulder. That being said, if there is any expansion in the field it can cause problems. Masking tape does have the adjustability factor working for it, and easier to apply. All that being said, if you are not satisfied with the nose cone let me know and I'll replace it.
 
Top