The Mini Mosquito is a very different rocket from the one in question.
In any case, I won't derail this thread any further. I stand by my previous assessment.
This is from the NAR website:IMHO this rocket is unsafe to fly in this configuration. Technically it violates NAR safety rules by having no recovery system.
On the other hand, the safety code states:Rockets can be recovered by many techniques, including parachute, streamer, glider, helicopter, featherweight, tumble, and nose blow for starters... Featherweight recovery can be used on a very small, light rocket. At apogee the spent engine casing is ejected from the model. The model then flutters to the ground like a feather. Unfortunately, the engine casing is also subject to the law of gravity and therefore, being comparatively dense, will fall to earth more rapidly. This is not a problem if you don’t happen to be standing under it when it lands.
So itlooksas if the safety code and NAR's own other advice may conflict. Featherweight is certainly a thing that a number of kits use.Recovery System. I will use a recovery system such as a streamer or parachute in my rocket so that it returns safely and undamaged and can be flown again, and I will use only flame-resistant or fireproof recovery system wadding in my rocket.
What I’m saying is that it *will* lawndart unless you’ve taken steps to ensure it is unstable on descent. Just from looking at it, that will be quite stable on the way down, even more so if you’re ejecting the motor which will bring the CG forward.
IMHO this rocket is unsafe to fly in this configuration. Technically it violates NAR safety rules by having no recovery system.
No worries. It is possible that this very light rocket could be slowed down (and destabilitized) just by putting the nose cone on a shock cord. That is called "nose-blow" recovery. Need to test to see for sure. A streamer would be best if possible.I’ll pop the top off and see if I can add a streamer. My thoughts were that it would flutter or tumble down like other small rockets we have...no harm intended.
No worries. It is possible that this very light rocket could be slowed down (and destabilitized) just by putting the nose cone on a shock cord. That is called "nose-blow" recovery. Need to test to see for sure. A streamer would be best if possible.
... Anybody know how much weight I would need in the nose if I put a 18mm motor mount and went with a C6?....I bet a lot!!...
Gotta go with Neil on this. At 10" it's too long and stable to tumble. Even the much shorter Semroc Li'l Hercules needs washer weights on the fins in order to tumble. Otherwise it will come down nose first and ballistic. Hopefully not on someone's head. (Don't ask me how I know). Either break apart recovery (mid point separation with a tether) or streamer recovery will suffice on this one.
Here's the last blow I'll deliver to this dead horse: a varient on nose blow is to cut the body tube on half, glue a coupler to one side only, and glue the nose cone in. I don't actually know if that gives a lower, higher, or the same decent rate, but it seems like it ought to be lower when each half is unstable by itself as well as being tethered together.
This my latest build, it's a beefed up LOC EZI-65.
I plan on using it for my Level 2 certification next month,so I built it a little sturdier than my first EZI-65.
Lots of extra epoxy on the centering rings.
Bondo Glazing & Spot putty for spirals
Exterior fillets were mainly for show, the fins are really epoxied well on the inside to the MMT, aft centering ring, mid centering ring and inside of main airframe. Plus fins were coated with wood hardener prior to priming.
Leading edges of fins were rounded over with an 1/8" dowel epoxied in place then filled in with wood filler and sanded.
2 coats of sandable filler primer sanding between coats 220grit, 400grit and then 600 grit
3 coats of "Traffic Cone Orange" & "Gloss Black" sanding between coats 220grit, 400grit and then 600grit
3 coats of Gloss Clear Coat after decals were applied.
Weighs in at about 75 oz dry. (I know it's a little on the heavy side for an EZI-65)
The pictures off of my phone do not do this paint job justice.
Equipment:
60" Rocketman chute
Jolly Logic Chute Release
Jolly Logic Altimeter 3
Aeropack 54mm motor retainer with 38mm adapter
20' One Bad Hawk harness
36" short lanyard with protective sleeve
Rocketman 24" Kevlar chute protector
1010 rail buttons
Flew twice at Jan. 18th Plant City, FL Tripoli launch.
Both times she was off the rail straight as an arrow.
Two great flights with perfect recoveries on Aerotech H550ST for both flights to break her in.
10 second delay worked wonders
I don't know what I hit in altitude, my Altimeter 3 died and has since been sent back for a replacement.
Next month I'll open her up with an I280DM and see what she can do.
Clear skies and great flights!
Brian
TRA #19075
OK. So here's mine. I was given 3 mailing tubes used to ship classroom-size Periodic Table posters. I fiberglassed the tubes and used 2 plus to build 'No Indigo'. She stands 73.25", weighs in at 6.8 lbs; is dual deploy using a LOC Precision 3" avionics bay; has a 54mm motor mount and MadCow motor retainer. The tube fins are epoxied to the body tube and to each other and also bolted to the body tube. It has 10/10 rail buttons on the 'red' strip and the nose cone is salvaged from a previous non-repairable disassembly! The maiden flight will hopefully be in the next few months; and, as of now, will be on an Aerotech I245G (using a 54/38mm adapter), with a predicted altitude of 1,100 ft.
OK. So here's mine. I was given 3 mailing tubes used to ship classroom-size Periodic Table posters. I fiberglassed the tubes and used 2 plus to build 'No Indigo'.
Super nice build!OK. So here's mine. I was given 3 mailing tubes used to ship classroom-size Periodic Table posters. I fiberglassed the tubes and used 2 plus to build 'No Indigo'. She stands 73.25", weighs in at 6.8 lbs; is dual deploy using a LOC Precision 3" avionics bay; has a 54mm motor mount and MadCow motor retainer. The tube fins are epoxied to the body tube and to each other and also bolted to the body tube. It has 10/10 rail buttons on the 'red' strip and the nose cone is salvaged from a previous non-repairable disassembly! The maiden flight will hopefully be in the next few months; and, as of now, will be on an Aerotech I245G (using a 54/38mm adapter), with a predicted altitude of 1,100 ft.
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OK. So here's mine. I was given 3 mailing tubes used to ship classroom-size Periodic Table posters. I fiberglassed the tubes and used 2 plus to build 'No Indigo'. She stands 73.25", weighs in at 6.8 lbs; is dual deploy using a LOC Precision 3" avionics bay; has a 54mm motor mount and MadCow motor retainer. The tube fins are epoxied to the body tube and to each other and also bolted to the body tube. It has 10/10 rail buttons on the 'red' strip and the nose cone is salvaged from a previous non-repairable disassembly! The maiden flight will hopefully be in the next few months; and, as of now, will be on an Aerotech I245G (using a 54/38mm adapter), with a predicted altitude of 1,100 ft.
Nice. EZ-I65 is a good kit for an L2 attempt, or at least I think so and hope so, since it's what I've got 3/4 built for mine. All epoxy construction. And a PML 4 inch to 75 mm boat tail; the Aeropack 54 mm retainer actually fits inside the boat tail, and mostly disappears.This my latest build, it's a beefed up LOC EZI-65.
I plan on using it for my Level 2 certification next month,so I built it a little sturdier than my first EZI-65.
Lots of extra epoxy on the centering rings.
I like it!OK. So here's mine...
That's because the meanings of words shift over centuries. When Newton said "blue" he meant a greenier color than we mean (which is why everybody knows the sky is blue even though it's a greenish blue) and when he said "indigo" he meant what we'd call blue today (which is why denim pants dyed with indigo are called blue jeans.) Have you never noticed that a rainbow has a large and pronounced cyan region? So when he wrote "Red, Orange, Yellow, Green, Blue, Indigo, Violet" he meant what we would call "Red, Orange, Yellow, Green, Cyan, Blue, Violet (or purple)".I never could see the difference between indigo and purple, though. However, "No Indigo" sounds better than "No Purple"!
When Newton said "blue" he meant a greenier color than we mean (which is why everybody knows the sky is blue even though it's a greenish blue) and when he said "indigo" he meant what we'd call blue today
So I guess that rocket ought to be called "No Cyan", but "No Indigo" sounds cooler.
Joseph,Nice. EZ-I65 is a good kit for an L2 attempt, or at least I think so and hope so, since it's what I've got 3/4 built for mine. All epoxy construction. And a PML 4 inch to 75 mm boat tail; the Aeropack 54 mm retainer actually fits inside the boat tail, and mostly disappears.
I like it!
That's because the meanings of words shift over centuries. When Newton said "blue" he meant a greenier color than we mean (which is why everybody knows the sky is blue even though it's a greenish blue) and when he said "indigo" he meant what we'd call blue today (which is why denim pants dyed with indigo are called blue jeans.) Have you never noticed that a rainbow has a large and pronounced cyan region? So when he wrote "Red, Orange, Yellow, Green, Blue, Indigo, Violet" he meant what we would call "Red, Orange, Yellow, Green, Cyan, Blue, Violet (or purple)".
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So I guess that rocket ought to be called "No Cyan", but "No Indigo" sounds cooler.
Andy,The Callisto needs a maiden and the Riley flew last weekend.
Fixed.As ai said, it's only 3/4, but here it isn't so far.
Joe,As ai said, it's only 3/4, but here it is so far.
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