# Conical Nose Cones

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#### solrules

##### Well-Known Member
Well, I think I will be doing a (semi) scale Black Brandt II. I have decided on 3" tubing, 1/4" plywood, but I can't seem to find a 3" conical nose cone! On PML's website, the largest they have is 1.5"....Is there any manufacturer that makes conical nose cones (preferably urethane/plastic, but if that does not work out, I might need to get a balsa one to fiberglass). Why are these not common? Is the strength of the conical nose cone substantially less than a olgive?

#### eugenefl

TRF Supporter

A 3x3x18" basswood is about $18! sandman #### sandman ##### Well-Known Member Foam is free from a construction site. I buy the 2" thick stuff from Home Depot...I think it's about$14 a sheet...I forget.

The problem with foam is glassing it after it's turned...the foam part is easy! Glassing takes another week!

sandman

#### Neil

##### Well-Known Member
Did you ever say the price for a 3" cone? Im still deciding if I want to make one.... I have a lot of other projects on the drawing board right now, so I thinkI will stick to them. How hard is it to glass a cone? Is there anything special you have to do, or do you just put glass on it like you would a tube?

#### Ryan S.

##### Well-Known Member
you need to cut the glass in parabolic shapes so it lays correctly over the curved surface, then I would imagine alot of sanding so the seams would all go away

I have a webpage with alot of pics of this....lemme find it

#### Neil

##### Well-Known Member
I still dont see how he did it.... Did he just make 2 pieces of glass the same shape as the cone and lay em on? Rocsim can give you a shape thingy for the cone... If thats how he did it, it wont be too complicated. Difficult, but not too complicated.

#### Ray Dunakin

##### Well-Known Member
Check with Andy Woerner at What's Up Hobbies. I don't know if he's still making them, but he used to have some 3" conical nosecones that would be almost perfect for a Black Brant.

https://www.whatsuphobbies.com/

Send him an email if you don't see it on the website.

#### Manwithbeers

##### Well-Known Member
Originally posted by Neil
I still dont see how he did it.... Did he just make 2 pieces of glass the same shape as the cone and lay em on? Rocsim can give you a shape thingy for the cone... If thats how he did it, it wont be too complicated. Difficult, but not too complicated.
I've made a couple foam/glass cones now. The first (ogive) I used a method similar to R. DeHate's method. There was a lot of sanding, trimming etc... I've since found that VCP does a great gore pattern for the material shape.
I've also tried wrapping cloth tape around my last cone (semi-parabolic) and that worked really well. The trick was to make the cone slightly small then add cloth and filler to shape it just so....

Fun project. Took me about 2.5 hours of labour to build my last cone. There is a post on it in the scratch forum called 'A new nose cone'. TTFN