EXPjawa
Well-Known Member
Mike, I think you have to catch them in their smaller, larval state...
Had him switch out the printed tailcone for an Aeropack
Got my rather customized 4" Blackfly on Friday. Had him switch out the printed tailcone for an Aeropack, and the plastic nose for a fiberglass one. All Mike's parts look great, as usual. Haven't checked fin fit or anything yet, but so far so good...
Hmmm I never thought of that, of course with the 4" and 3" BlackFlies the Aeropack tailcone is an option. Please mock it up and snap some pics for comparison to the 3d printed one. I have a 3" 54mm on my Darkstar and I like it. More importantly it fits CTI, AT and Loki hardware, so I may just follow your lead as I have to place an order with Mike for some fin guides.
My current infestation. Sure hope it stops here. Really liking the metallic charcoal paint!
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3 finish paint is Rustoleum Metallic Charcoal.
Used a chunk of aluminum angle to get decals straight.
Ill get a nicer, outside (natural light) pictures of these soon enough, but had to share. These decals really make the rocket, the BF font looks great.
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.........Oh, did I mention we have a new 4" kit coming out for the "Missile Collector Series" in a couple weeks?
Google Pluto/SLAM
Black Fly 3" update...
Add the AeroTech H148R to the list of perfect class 1 motors for this kit, though I still prefer the flame on the H130W. I'm using a tiny 8" spherachute drogue on the NC and a JLCR on a 42" main which keep things in bounds, and almost in the parking lot.
If the weather cooperates for NCR this weekend at Pawnee NG I'll send it up on an I211W or I180W.
BF3 on an I180W to 3,063 AGL. Per MPitfields advice, Ive been using a tiny custom drogue Spherachute on the heavy nose cone to keep it above the booster until the JLCR releases, works great!
Hard to beat this flame to rocket ratio, but Im sure gonna try!
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The swarm is complete!
The 4" upscale had its maiden flight this morning on a J540R to 6,925'. Dry weight on the 4" with HED e-bay holding redundant altimeters and MW T3 was 3,285g. 1.2cal stability with the J540.
I usually see good agreement between OpenRocket and reality. This flight simmed to 6,400' with polished surface finish and airfoiled fins, yet flew 500' higher...
Youtube video (2 ground angles, no on board):
The swarm is complete!
The 4" upscale had its maiden flight this morning on a J540R to 6,925'. Dry weight on the 4" with HED e-bay holding redundant altimeters and MW T3 was 3,285g. 1.2cal stability with the J540.
George, fantastic flight...man she flew straight. I am not sure if anyone was able to grab any video of Mikes 6" BlackFly flight from URRF but it was a really nice straight flight as well. Can you post some detailed pics of your HED setup? I am just finishing up my 4" and any tips are appreciated.
The road to rocket Nirvana is paved with big motors stuffed in short rockets.
In this you seem to Excel, at a multitude of levels.
Carry on.
Thanks, Michael.
My forward bulkhead is an APE inspired design with integral charge cups that I made myself. This bulkhead and sled was originally designed for my AMW FiberMax with the goal of holding just a single MW RRC3 and T3.
I was pleased to find the bulkhead also slipped into MAC phenolic couplers with just a little sanding. Seeing the ejection delays I needed for big K motors, I decided to upgrade the sled to hold a second altimeter since motor eject backup was out.
It now holds two 9Vs to run altimeters, a 600mAh Lipo for the T3 tracker, and 3 screw switches 120 degrees apart which I arm with a Wera precision PH #00 screw driver through the vent band holes (not just any screw driver can poke in there!)
I have the coupler engaged ~1.75" in the WM NC. I'm using 1.2gr for the NC main, this is packed in a nitrile glove tip, stuffed in the integral charge cup. Big SS eye nut on the NC tip screw for harness attachment. 18' of MAC 1/4", 3,000lb kevlar harness attached to a 72" Spherachute in an 18" nomex burrito roll.
Ground testing led me to 1.6gr for apogee side with 54/1706 case. These charges are in nitrile glove finger tips.
Both apogee and main charges are shearing three #2-56 nylon screws.
I was concerned about tracker antenna performance with the two aluminum 1/4-20 rods and a metal bulkhead, but so far so good.
George, I meant to ask you, how did you pack your chute in the nosecone? I have concerns with the nose popping off and the chute stays packed in the tip of the nosecone. Did you have similar concerns and if so what if anything did you do to mitigate this from happening? My thoughts were to pack the chute on top of the recovery harness so the recovery harness forces, or at least that is the hope, the chute out first.