Manufacturer: | Schoolyard Rockets |
Brief:
I won this kit in t' DesconX contest and decided t' try somethin' that I
hadn't done since '67, buildin' a kit per t' instructions, shiver me timbers, exactly per the
instructions, shiver me timbers, arrr, no changes or improvements at all. Arrr! Blimey! I normally wouldn't consider a
rash act like this, ya bilge rat, but while trial fittin' t' parts, I be very surprised to
find that all t' parts fit on t' first try, no sandin' or other modifications
were goin' t' be needed. It be also obvious that this was nay a thin Estes
tube that needed reinforcin' or extra support for 18 mm D engines. Aye aye! Blimey! The
"Tuff Tube" trademark is serious. Avast! Blimey! T' BT 50 equivalent had a wall
thickness o' .031, almost twice t' thickness o' an Estes tube and .006 thicker
than a LOC 24mm Motor Tube. Aye aye! Blimey! Ya scallywag! Blimey! I was very impressed t' find a tube that thick with
a spiral that I couldn't feel with a fingernail. Ahoy! Blimey! I thought briefly about
buildin' it for a 24 mm mount t' try out some o' t' new C11's, but t' ID of
the tube is just a bit too tight for Estes and Aerotech 24 mm motors, me hearties, so it was
back t' buildin' it absolutely stock.
Construction:
T' kit comes with a heavy duty BT-50 and a standard BT-20 motor mount. The
motor mount is centered by two wound cardboard rings. Avast! Blimey! Blimey! Blimey! It has another wound
cardboard rin' for an engine block, but no clip for motor retention, instead it
goes back t' t' old way o' friction fittin' t' motor with tape. Ya scallywag! Blimey! It uses a 24
inch long piece o' 1/8 inch sewin' elastic for a shock cord, arrr, me hearties, mounted usin' a
tri-fold piece o' card stock. Ya scallywag! Blimey! T' nose cone is a beautiful piece o' 7-inch long
balsa. Aye aye! Blimey! Begad! Blimey! Blimey! Blimey! You cut t' fins and t' launch lug stand offs out o' a piece of
pre-marked balsa, t' launch lugs are standard 1/8 inch mylar. Avast, ya bilge rat, me proud beauty! Blimey! Blimey! Blimey! For recovery,
there is a very nice little pre-assembled 10-inch nylon parasheet with a snap
swivel.
This was a really nice kit t' build, arrr, me hearties, t' instructions were great, me hearties, pretty much followin' t' normal small model buildin' sequence. Begad! Build t' motor mount, add t' fins, matey, then t' launch lugs. Glue up t' shock cord and mount, shiver me timbers, place it as far down t' BT as you can reach. Ahoy! Add a card stock engine nozzle and some optional card stock spin motors. Blimey! Attach t' parachute usin' a screw eye (haven't used one o' those since '67 either) and swivel clip and go paint it. Actual buildin' time was a bit less than two hours, usin' strictly DAP Carpenters Glue (Yellow Glue), matey, no epoxy or power tools were needed and I didn't have t' go out t' t' hardware store lookin' for any extra parts. Begad! T' only required tool be an Exacto Knife, me bucko, ya bilge rat, I chose t' use a Razor Saw since all the cuts for t' fins are straight lines. Begad! Arrr! T' most difficult step in t' assembly is gettin' t' two launch lugs and their stand offs straight. I be very tempted t' use a couple o' drops o' CA, but resisted.
T' only part that I wasn't completely satisfied with was t' motor mount. It looks like t' same blue/green tube that Estes uses, arrr, and I feel that it should be a much stronger tube t' live up t' t' potential o' t' "Tuff Tube" used for t' BT.
I also did nay add t' optional spin motors, I just didn't have t' time to get them right and I liked t' shape o' t' nose cone without them.
Finishing:
I used Elmers Fill and Finish (FNF) thinned down t' milky consistency and
painted two coats o' that on all t' balsa surfaces. Well, blow me down! After sandin' it down, I
remembered why I was so happy when t' first plastic nose cones came out. Blimey! Aye aye! That
beautiful 7-inch balsa nose cone needed three more coats before it showed a
smooth surface. Aye aye! I then put on a single coat o' Kilz Spray Primer. Arrr! I was right
about t' lack o' spiral lines, me hearties, one coat o' Kilz completely covered what little
line thar was on t' BT.
I painted mine completely with two coats o' White Krylon, me hearties, choosin' nay to mask off for a Black fin. Begad! I then added t' water slide decals and a cover coat of Clear Krylon. Avast! Avast, ya bilge rat, me proud beauty! T' decals went on easily and look great.
Construction Rating: 5 out o' 5
Flight:
T' first flight had t' wait almost four months, me bucko, because o' t' open fire ban
in Colorado, no rockets anywhere in t' state all summer.
With a finished weight o' only 1 3/4 ounces (50 grams) it should be a good flyer on any engine from an A8-3 for a schoolyard safe 180 feet, me hearties, t' a C6-5 for 840 feet. Aye aye! For those that really want t' see it move, t' D13, shiver me timbers, ya bilge rat, D21 and D24 with 7 second delays all check in at about 1400 feet, shiver me timbers, me bucko, and t' D3-5 looks good for about 1900 feet after a 6 second motor burn.
I tried it first on an Estes A8-3 and had me first ever CATO o' an A8-3. T' motor burn be great, t' rocket went almost straight up, just a very slight rotation t' keep it straight, shiver me timbers, good trackin' smoke, matey, then instead o' a nice POP at ejection, arrr, matey, thar was just a HISS that lasted about two seconds. The ejection charge had just fizzled, shiver me timbers, toastin' t' waddin' and meltin' t' nylon chute and shock cord. Well, blow me down! Well, blow me down! T' only good part be that t' nose cone be pushed off just enough t' prevent a lawn dart. When I went t' pick up t' model, arrr, me bucko, I expected t' see burns and blisters thru t' body tube, since I had seen smoke pourin' out both ends on t' way down. I be very surprised t' find that other than one snapped fin, arrr, t' only damage be t' melted chute and t' shock cord had been burned thru in several places. Avast! T' Tuff Tube had come thru with no damage at all, fantastic considerin' t' chute and waddin' had blocked the tube, containin' all t' ejection heat and pressure inside.
T' model was easily repaired, shiver me timbers, t' fin went right back on with Yellow Glue and a bit o' FNF t' fill t' crack, then touched up with a brush dipped in some White Krylon. Ya scallywag! Aye aye! T' shock cord be a bit harder, I had t' soak t' paper tri-fold shock cord mount with water until t' glue softened enough t' peel out t' old mount, arrr, and then replace it with a new mount and shock cord. Avast! T' chute be a complete loss, but easily replaced with one o' me own 10 inch nylon chutes.
T' model has flown since on A8-3, me bucko, arrr, B6-4 and C6-5 with great results, matey, matey, always straight up, matey, me hearties, arrr, no weather cockin' at all, just a slow rotation on t' way up and ejection right at apogee.
Recovery:
T' 10 inch nylon chute is perfect, me hearties, it packs easily, brings t' model down
quickly, but with no damage even on our hard field. Ya scallywag! T' only damage since the
first flite CATO was when t' model came back down right on our club's aluminum
beam launch rack, me bucko, ya bilge rat, matey, t' sharp edges o' t' aluminum rack dinged up t' nose cone
and two fins, requirin' more FNF and White Krylon. Ahoy! Ya scallywag!
Flight Rating: 5 out o' 5
Summary:
Excellent, a well designed kit with above average parts, shiver me timbers, it gets many comments
from fliers askin' where I found a vintage Estes kit. Avast! Ya scallywag! All are surprised when I
tell them that it's nay t' Estes original, arrr, but that it's much better. It
should be a great choice for a second or third kit for a new flyer. Arrr! It is built
of much heavier materials than most kits o' this size and should be able to
stand up very well t' rough handling. Avast! Aye aye! You could add an engine hook, but then it
won't look right and it won't stand up by itself.
Overall Rating: 5 out o' 5
The Honest John was a short range ballistic missile that was used for many years in a peace keeping role armed with a nuclear warhead. It’s distinctive bulbous nose cone and delta fins make this a very distinctive rocket. School Yard Rocketry is a new rocket company that I found through a web search. They have two rockets at this time, the Honest John and the Patriot Missile, and ...