US Rockets Stiletto build

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chris m

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Hello I am doing a US rockets Stiletto .
i will be weighing out the parts and changing what will be changed and then do a open rocket sim
Its a 66mm host 6.33 foot tall and 4 inch diameter it comes with a29 mm mount and a 4x24mm mount .
this will be mostly a stock build but will go 54mm , think the 66mm will be to hard to find now .
if you want to look up this kit its in the LSS section . its cool it go from 4 inch to 2.7 with a tube transtion from air frame and rings . also thinking t2t on the 5 fins and glass the tubes , has breaks so can do DD no problem . will have updates soon
 
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chris m

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Here is a picture of everything laid out the 2.7 off to the side is a 66mm mount not being used1486838043780-1548712377.jpg all tubes are size of loc
 
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chris m

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Ordered center rings and motor mount for this going 54mm and not the 66mm . Thinking if I should glass this or not . Thinking just under 1.5 lbs plus chute and harness looking for my scale so I can get weights and do a sim.
 

chris m

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Got the rings and motor mount today building to start
 

chris m

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1487437127640-270782124.jpg this just the base line configuration will be a little different. Air frame from the transition will be shorter.
 
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chris m

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OK starting on this build first picture is the template ,second is on and where I wanted it and scored so the tube is scored

14890256204921608905284.jpg


148902567947540847341.jpg
 
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chris m

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Transition is cut , sharp blade and you can do any thing . Transition is 4 inch to 2.7 inch

1489026533571326632999.jpg
 

chris m

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This is the transition tube and rings . And with it in side14890271852901458654825.jpg 1489028241428-1183095207.jpg
 
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chris m

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I wish I could get my pictures right side up
 

chris m

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Fins slots cut . No pictures , just your basic stuff
 

chris m

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Thanks hoping some time today I can get that done. On another note what is coming up next on builds is a mad cow sqaut , a deam machine 66 , sonic 160 (29mm 2 stage)
 

chris m

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This build will speed up ,as will the colossus goblin . The CG will stay as a 54mm and the stiletto will be done with its stock 66mm so it can fly 54,38,29 ,2x29 and 4x24 . The 4x 24mm would be select motors . Some where at 3lbs not bad for just under 7 ft tall
 

chris m

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Weight less motor and retention and paint 2.82 lbs
I65 4375 ft at .47
Cti j210 4515 at .65 thinking no fiber glass on this one
 

chris m

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OK the question for this is ,do I glass the fins there 4 ply 3/8ths and tubes with the transition . It would most likely add about a pound or so to this build . Or just fly cardboard and wood
 

AdAstraPerAspera

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I'd glass, but then again I've never been afraid to build heavy... You shouldn't need it on the fins, though with only 4 ply it's not a bad idea. But those tubes look thin. It would definitely beef up that transition... I've never seen a high power transition just cut into the tube like that, so I'm very curious how this turns out.
 

qquake2k

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Looks like you're putting a lot of thought into this build, Chris. I've never heard of a 66mm motor mount before.
 

chris m

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Yes it's a kit from US rockets and the host is 66mm . Used it with the 4 adapters to fly from 54mm to 24mm and in different combos
 

AdAstraPerAspera

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Looks like you're putting a lot of thought into this build, Chris. I've never heard of a 66mm motor mount before.
I think it's 2.5 inch tubing, usually listed at 64mm. There are a couple motors made in that size, all hybrids.
 

ECayemberg

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I think it's 2.5 inch tubing, usually listed at 64mm. There are a couple motors made in that size, all hybrids.
I have Kosdon hardware and motors in the 2.5" size. Great motors and hardware; just never really caught on and became mainstream. There are a few motor manufacturers that wish 54mm hardware wasn't so popular...it's an odd size that is somewhat difficult/expensive to source.

Looking good, Chris. You shouldn't need glass on the rocket for the motors you've listed. Cardboard stands up to a lot more than people give it credit for. Glass it if you like; but it'll be fine without it.

-Eric-
 

chris m

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Thank for the imput. It's a old school rocket and will not be glassed . I will be a mwp hoping to do my L3 . I will bring the masking tape and put an old motor in one of them .
 

chris m

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Transition and tubes filled with lite bondo . Pictures in the morning.
 

chris m

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Adapters for 54mm,38mm,29mm and 3x29mm done
 

chris m

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I will have pictures later today , almost all painted just need the wet sand and shoot the clear
 

chris m

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Yes 5 fins 4 inch rocket to transition to 2.7 with a 66 mm hole
 
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