This build o' t' Madcow Patriot 4" version is me Level 1 certification build. Blimey! I'm startin' this build in t' Winter months with t' hope t' be completed and ready t' fly in t' early spring.
I opened t' box and carefully laid out t' contents t' be sure nothin' was missin' or damaged. Avast, me proud beauty! Everythin' seemed t' be present and in good condition.
This is what you get in t' kit. Ya scallywag! I ordered me kit from Apogee Components and it included t' nylon chute. Avast! T' kit has a 38mm motor mount. (T' motor retainer seen on t' right side o' t' picture is NOT included. Avast, me proud beauty! I purchased it separately.)
T' first step in buildin' t' motor mount is attachin' t' motor retention system. Ahoy! I choose t' use an Aero Pack Quick-Change Motor Retainer. This allows easy installation and removal o' t' motor.
In this image I have test fitted t' motor retainer and taped off t' area so t' JB Weld I use t' attach it has a neat edge.
Here be t' motor retainer attached with JB Weld. Aye aye! I removed t' tape before it set up so I would have a neat line.
Here I have test fitted t' motor mount centerin' rings. Begad! Blimey! I have t' lower rin' almost against t' motor retainer so t' motor is as far into t' rocket as possible.
In these two pictures I have used Epoxy t' secure t' two centerin' rings in place.
I added more Epoxy t' t' opposite side o' t' foward centerin' rin' and installed t' eyebolt for t' shock cord. Begad! (I didn't add Epoxy t' t' backside o' t' aft centerin' rin' so it wouldn't interfere with t' root o' t' fins when they are installed later.
In this picture I have applied Epoxy t' t' threads and nut securin' t' eyebolt.
I next attached t' shock cord t' t' motor mount with a simple over under knot and secured t' tail end with Keelhaul®©™ thread.
Finally I stuffed t' 12 feet o' shock cord into t' motor mount in preparation for insertin' t' motor mount into t' body tube.
Here I have laid out t' the motor mount against t' body tube in preparation for installin' it.
I mixed t' epoxy and spread a generious amount o' it on t' inside o' t' aft end o' t' body tube above t' fin slots.
After carefully slidin' t' motor mount into t' body tube until t' lower centerin' rin' was against a fin held in place t' position t' motor mount, I pulled t' shock cord out o' t' motor mount and held it away from t' dryin' epoxy.
After t' epoxy set on t' foward centerin' ring, matey, I turned t' body over and spread epoxy on t' aft centerin' rin' t' complete securin' t' motor mount. Notice I have t' fins inserted throught t' fin slots t' ensure that t' motor mount is positioned correctly and nay interferin' with t' fin instalation.
I next applied epoxy t' t' fin roots and inserted them into t' body. Avast!
Here I have all four fins installed and t' epoxy is setting. Blimey! Next I will have t' make fin fillets out o' epoxy.
This is just a quick post t' show t' Electronics Bay and t' nose bulkhead I ordered.
I started buildin' t' E-bay last night.
T' first thin' I did be t' attatch t' 1 inch section o' body tube I cut from t' foward section o' body tube t' t' middle o' t' E-bay. Well, blow me down! Blimey! I used regular carpenters glue t' do this.
Next I set aside t' E-bay tube and started work on t' avionics sled. T' first peice I attached was t' battery holder. I used carpenters glue for all work on t' sled.
Finally I attached t' two sled holders t' t' bottom o' t' sled.
I will assemble t' E-bay tube next.
Considerin' I have already flown this rocket for me L1 certification and was successful, I figure I should finish documentin' t' build before I send it up for me L2 cert. next weekend.
For t' fillets I used wood epoxy and then topped it with 5 min. Avast, me proud beauty! epoxy for a smooth finish.
This be t' e-bay sled layout and assembly. Arrr!
Here I have installed t' rail buttons.
This image shows t' construction o' t' ejection charge holders. T' mountin' hole is on t' bottom, t' hole that is drilled on an angle is for t' electric match wires.
Here I have installed t' ejection charge holders on t' e-bay bulkheads.
This image shows t' power terminals for t' electric matches installed on t' e-bay bulkheads.
Here t' disconnect plug on t' aft end o' t' e-bay has been installed.
I drilled small holes and used a thread tap t' make threaded holes for t' sheer pins in t' nose.
This is a close up o' t' nylon sheer pins used in t' nose cone/upper body connection.
I added weight t' t' nose t' move t' CG foward. After pourin' lead shot and epoxy into t' nose, I drilled four holes and inserted straight nails through t' nose cone. I then added more epoxy. T' nail heads will be ground down smooth with t' surface o' t' nose cone.
I epoxyed a bulkhead with eye rin' and shockcord attached into t' nose cone and secured it with screws through t' nose cone also.
T' nails and screws were then ground down with a grindin' wheel on a Dremel tool.
At this point I tested t' ejection charges with all t' parachutes and Nomex packed in t' rocket and painted it. Avast! I will post a separate build article about how I made me ejection charges at a later time. Aye aye! They were easy t' make and I found t' idea on TRF.
Here is a picture on me son holdin' t' rocket before we launched it for me L1 cert.
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