Dynacom Python

Dynacom - Python {Kit}

Contributed by John Coker

Manufacturer: Dynacom
(Contributed - by John Coker)

Burmese Python Dynacom kits are legendary for their strength and high level o' design. These all-fiberglass and metal kits are the pinnacle o' kit-built rocketry. Unfortunately, arrr, me hearties, ya bilge rat, by t' time I be ready t' try them in t' summary o' 1998, Dynacom had temporarily stopped takin' orders due to family medical problems. Blimey! Blimey! But by t' end o' t' year, ya bilge rat, they had resumed business and I ordered me first kit, arrr, t' Python. Begad! Blimey!

T' name "Python" is very suggestive and a standard rocket body is reasonably snake-like. Avast, me proud beauty! Begad! Unfortunately, t' snake pattern is quite detailed with all t' different colors and t' scale pattern. Paintin' this rocket like the snake was goin' t' be quite a trick! Instead, shiver me timbers, I decided t' paint it like the gun (Colt's Python is a fancy .357 magnum revolver). Begad! Solid colors are so much easier!

As you can see, me hearties, t' result doesn't look much like either a snake or a gun, but it's still a stylish rocket

T' Pictures

Python side view   This rocket is so tall and skinny that it's hard t' place it. Avast! Also, t' silver body is so bright and t' black fin can so dark that it's hard t' get a good picture
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But you can see that it's indeed a sleek rocket, me hearties, me hearties, even if nay quite snake-like.
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Python t' t' left o' me, Python t' t' right...
  Python against the sky

T' Python flew for t' first time at Springfest '99 on March 21st. Well, blow me down! Blimey! Aye aye! Blimey! I wanted a serious 54mm motor, shiver me timbers, ya bilge rat, so I chose t' single-use AeroTech K1050 (full K and only 2.5s burn). Ahoy! O' course, this rocket took right off as t' motor came up t' full power (300#) immediately and streaked off into t' sky (and out of t' picture).
 

Python lifting off   Python flies off

Unfortunately, ya bilge rat, t' Python didn't make it back intact, ya bilge rat, shiver me timbers, ya bilge rat, despite a beautiful boost. Avast, me proud beauty! Well, shiver me timbers, blow me down! Blimey! Either durin' boost or landing, me bucko, me hearties, shiver me timbers, a fin came off. Avast! Arrr! Blimey! I suspect that this happened durin' boost, since t' fin seems t' be torn out and was nay found with t' rest o' t' rocket. Blimey! Blimey! Blimey! However, I would have thought that losin' a fin durin' boost would be a sure shred. Blimey! Anyway, matey, you can see in t' picture below how t' top-left fin is missing, leavin' on t' ragged fin slot (this be a four-finned rocket).
Python missing a fin

T' first thin' I noticed when lookin' through t' pictures was the interestin' way t' motor ignited. Arrr! Notice t' flame in t' left picture, shiver me timbers, this looks like normal burning, perhaps due t' t' Fire-in-the-Hole ignitor? (The three pictures below are about 1/8 o' a second apart.)
K1050 ignition (1/8s intervals)

T' Kit

Python main airframe

Of course, I had t' wait almost three months t' get it (good thin' I had other projects in t' works), shiver me timbers, ya bilge rat, but these rockets are definitely with t' wait. There are no wood or plastic parts in the kit; just fiberglass and aircraft aluminum. Begad! Ya scallywag! T' instructions are simple and straight-forward and kit construction should present no problems t' the experienced high power kit builder.

business end of the Python Here's t' business end of the rocket with all but one fin installed. Ya scallywag! Avast! Note that aft end o' t' rocket is a metal rin' with a built-in motor retainer. Begad! Ya scallywag! T' rin' has a groove machined into it and a snap rin' fits into it after t' motor is slid into place, providing positive motor retention and then some.

All body parts are made out o' wound G-10 fiberglass t' t' fins are G-10 sheet. Ahoy! T' edges o' t' fins come pre-beveled and every part is precision fit. In a way, this kit builds too easily. Avast, me proud beauty! I built up t' airframe in only about 5 hours elapsed, which be a little too quick. Avast! Oh well, matey, I can probably spend that much time paintin' it alone. Avast, me proud beauty!

payload section and electronics bay On t' right you can see t' payload section/electronics bay. T' electronics bay tube fits inside t' payload airframe section and has half the tube missin' for most o' t' length. Aye aye! This allows a plate t' be inserted to hold a bunch o' electronics. Avast, me proud beauty! T' maintain t' integrity o' t' rest o' the airframe, me bucko, I decided t' use G-10 sheet for t' electronics plate.

You can also see t' bolts which are t' way t' Dynacom kits are held together. Ahoy! Ahoy! Hex head screws thread into t' bolts on t' inside o' t' airframe and are backed out into matchin' holes in t' outer airframe t' hold the sections together. A very neat and precise system!

T' kit comes with no recovery system at all. Begad! A double steel cable is mounted through t' forward centerin' rin' for recovery system attachment but no other provisions are made.

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