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Lamp
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Post subject: 13mm Scratchie  Posted: Sun Jan 24, 2010 1:21 pm |
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Joined: Fri May 08, 2009 9:28 am
Posts: 268
Location: Melbourne
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I was after a larger 13mm 3FNC rocket for park flying. I did not like any of the available kits so I built this....
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ROCKet STAR
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Post subject: Posted: Sun Jan 24, 2010 1:45 pm |
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Joined: Mon Mar 16, 2009 1:40 pm
Posts: 591
Location: Newtown NSW
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Very sleek! The fins look very fine. What are they made from?
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"You can't be a real country unless you have a beer and an airline. It helps if you have some kind of a football team, or some nuclear weapons, but at the very least you need a beer"
-Frank Zappa
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diesel
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Post subject: Posted: Sun Jan 24, 2010 3:32 pm |
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Joined: Wed Nov 25, 2009 9:41 pm
Posts: 76
Location: brisbane
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very nice looking rocket well done. did you scratch build the hole thing e.g. the body tube , nose cone......
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Sumo310
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Post subject: Posted: Sun Jan 24, 2010 5:44 pm |
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Joined: Wed Jun 20, 2007 7:48 pm
Posts: 1346
Location: BRISBANE
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Looks good, can you put something next to it so we can get an idea of its size?
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krusty
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Post subject: Posted: Sun Jan 24, 2010 5:49 pm |
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Joined: Tue Nov 27, 2007 12:21 pm
Posts: 749
Location: Noble Park, Vic, Australia
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Lamp
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Post subject: Posted: Sun Jan 24, 2010 10:12 pm |
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Joined: Fri May 08, 2009 9:28 am
Posts: 268
Location: Melbourne
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ROCKet STAR wrote: Very sleek! The fins look very fine. What are they made from? The fins are just standard 3/32" balsa, I sketched the shape I liked then cut them out. diesel wrote: very nice looking rocket well done. did you scratch build the hole thing e.g. the body tube , nose cone...... Nah, I'm not good enough to scratch the body tube or nosecone, they came out of an old Estes designers box of parts. Sumo310 wrote: Looks good, can you put something next to it so we can get an idea of its size? I can take another photo tomorrow if you like but it is a simple BT5 body using a full 18" tube. The motor will stick out about 1/4" and I'll tape it to the body tube to secure it. krusty wrote: That's really great!! Love the paint job  Is that metallic black? Hmmm, metallic black, I should have thought of that...No it is a gloss black base with a cheap gold flake paint, full coverage over the fins and graded out down the body tube. I was just trying something different to see how it would come out.
Your compliments are high praise indeed for such a simple rocket, but I am pleased at how it came out. I'll probably fly it soon if the wind dies down before I have to go back to the Tanami. The rocksim I did on it says it will reach about 285' on a 1/2A and around 600' on an A. I think that will be optimistic myself...
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krusty
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Post subject: Posted: Sun Jan 24, 2010 10:42 pm |
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Joined: Tue Nov 27, 2007 12:21 pm
Posts: 749
Location: Noble Park, Vic, Australia
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Lamp wrote: krusty wrote: That's really great!! Love the paint job Is that metallic black? Hmmm, metallic black, I should have thought of that...No it is a gloss black base with a cheap gold flake paint, full coverage over the fins and graded out down the body tube. I was just trying something different to see how it would come out. It looks really good I use lots of cheap paint! The Valor rocket used fiddly bits grey undercoat with the silver on top coming from a $3 sample pot from the interior paint range at bunnings! Lamp wrote: Your compliments are high praise indeed for such a simple rocket, but I am pleased at how it came out. I'll probably fly it soon if the wind dies down before I have to go back to the Tanami. The rocksim I did on it says it will reach about 285' on a 1/2A and around 600' on an A. I think that will be optimistic myself...
You'd be surprised - those 13mm A's pack quite a punch in the min diameter rockets. I've got a thunderbee that would do every bit of 600' !
Krusty
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Lamp
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Post subject: Re: Posted: Tue Jan 26, 2010 9:08 pm |
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Joined: Fri May 08, 2009 9:28 am
Posts: 268
Location: Melbourne
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krusty wrote: You'd be surprised - those 13mm A's pack quite a punch in the min diameter rockets. I've got a thunderbee that would do every bit of 600' !
Krusty Well Krusty, you were right, it flew great on a 1/2A and even better with an A...pity the wind was a little strong - so much so that on an A with a streamer it drifted into the long weeds and was lost  I'll have to build another one of those! RIP 
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TRA 12286 L2
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ROCKet STAR
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Post subject: Re: Re: Posted: Wed Jan 27, 2010 11:12 am |
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Joined: Mon Mar 16, 2009 1:40 pm
Posts: 591
Location: Newtown NSW
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Lamp wrote: the wind was a little strong - so much so that on an A with a streamer it drifted into the long weeds and was lost I'll have to build another one of those! Thats annoying! I have lost a couple skinny 13mm rockets in the past... they just scream into the air, disappear and are never seen again. Maybe you should build several!
_________________
"You can't be a real country unless you have a beer and an airline. It helps if you have some kind of a football team, or some nuclear weapons, but at the very least you need a beer"
-Frank Zappa
Last edited by ROCKet STAR on Wed Jan 27, 2010 11:19 am, edited 1 time in total.
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krusty
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Post subject: Re: 13mm Scratchie Posted: Wed Jan 27, 2010 11:17 am |
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Joined: Tue Nov 27, 2007 12:21 pm
Posts: 749
Location: Noble Park, Vic, Australia
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Reminds me of this:  Losing a rocket is a bummer, but at least with a scratchie you've only lost a few $$'s worth of parts and not $15+ with a kit Krusty
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Lamp
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Post subject: Re: 13mm Scratchie Posted: Wed Jan 27, 2010 11:36 am |
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Joined: Fri May 08, 2009 9:28 am
Posts: 268
Location: Melbourne
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On the good side Krusty, I did get to play around with my new camera getting launch shots....it seems to work quite well.  I figured that if I could get photos of the small stuff, it it will be even better for shots at Serpentine!
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TRA 12286 L2
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diesel
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Post subject: Re: Re: Posted: Wed Jan 27, 2010 3:20 pm |
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Joined: Wed Nov 25, 2009 9:41 pm
Posts: 76
Location: brisbane
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Lamp wrote: krusty wrote: You'd be surprised - those 13mm A's pack quite a punch in the min diameter rockets. I've got a thunderbee that would do every bit of 600' !
Krusty Well Krusty, you were right, it flew great on a 1/2A and even better with an A...pity the wind was a little strong - so much so that on an A with a streamer it drifted into the long weeds and was lost I'll have to build another one of those! RIP thats a shame mate it looks realy great keep it up.
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OverTheTop
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Post subject: Re: 13mm Scratchie Posted: Wed Jan 27, 2010 7:47 pm |
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Joined: Sat Jul 21, 2007 2:20 pm
Posts: 394
Location: Melbourne, Australia
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My sincere condolences on your loss... Would a longer streamer help find it in the reeds? Won't slow the descent proportionally, but draped over LZ it would be easier to spot!
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Research is what I'm doing when I don't know what I'm doing. ~Wernher Von Braun
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krusty
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Post subject: Re: 13mm Scratchie Posted: Wed Jan 27, 2010 7:58 pm |
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Joined: Tue Nov 27, 2007 12:21 pm
Posts: 749
Location: Noble Park, Vic, Australia
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Lamp wrote: On the good side Krusty, I did get to play around with my new camera getting launch shots....it seems to work quite well. I figured that if I could get photos of the small stuff, it it will be even better for shots at Serpentine! With your new camera, you may even give David a run for his money  I got a new 8GB memory card for my camera the other day - nice quick 60MB/s ! 'tis sweet!! Krusty
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Lamp
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Post subject: Re: 13mm Scratchie Posted: Wed Jan 27, 2010 9:41 pm |
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Joined: Fri May 08, 2009 9:28 am
Posts: 268
Location: Melbourne
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Fast 8 gig...sweet I ended up getting a second card for mine...as I have both SD and CF slots and the camera can handle both at the same time it means I can go crazy at a launch in high fame rate mode without worrying about space. Maybe we should open a rocket photography thread 
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TRA 12286 L2
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