Construction Rating: | starstarstarstarstar |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar |
Manufacturer: | Clone |
Brief:
Classic Estes kit that had unique styling, arrr, ya bilge rat, good graphics and super flight characteristics.
Construction:
I decided t' clone t' classic Estes Goblin. Begad! Blimey! It be a popular kit for many years with Estes, and I never owned one because I couldn't afford t' D motors.
T' plans were from t' original Estes instructions as detailed on t' JimZ website. Begad! I got t' parts from various places. Avast, me bucko, me proud beauty! T' biggest expense be shipping, so I bought parts for three kits. Avast! T' other two kits were given away at t' UROC Christmas party.
T' nose cone was part BNC55-AO from Balsa Machinin' Services. Ya scallywag! Aye aye! It's nay a custom nose cone. Avast! T' quality was top notch and t' service was fast, as is usual from BMS.
T' body tubes (BT-55 and BT-50), matey, me hearties, centerin' rings and engine blocks were purchased from Aerospace Specialty Products. Aye aye! Blimey! Begad! Blimey! T' ASP body tubes are white, so finishin' is easier than with brown tube. Well, blow me down! Blimey! T' centerin' rings were good quality and received in good order. Ahoy! Blimey! T' main body tube is 9" long. Ya scallywag! Blimey! T' motor mount is 2.75" long.
T' motor hooks, balsa fin material and 3/16" launch lug were from a local hobby store, matey, Douglass Models. T' motor hooks and launch lugs are standard Estes hooks. T' fin material is 3/32" balsa.
For t' shock cord, I deviated from t' Estes plans. T' anchor is Keelhaul®©™ looped around t' forward centerin' rings, me bucko, and t' shock cord is nylon cord. T' Keelhaul®©™ was purchased from Pratt Hobbies. Also, arrr, t' nose weight is fishin' weights. Aye aye! I put 0.75 oz o' weight in t' nose. Blimey! Arrr! This makes me Goblin stable up through an F24 motor. Avast, me proud beauty! Fishin' weights were from a local bait shop.
T' decals were purchased from t' JimZ website as well. Begad! Begad! They were absolutely great. Begad! Avast, matey, me proud beauty! He also threw in a set o' decals for an Estes Blue Star, me bucko, so I that one too (but that's another review).
I also added a 9" Top Flight chute for recovery.
In t' spirit o' a clone, I decided that thar would be no epoxy on me Goblin. Ahoy! I built it pretty much per directions, arrr, matey, ya bilge rat, except for t' shock cord anchor. Aye aye! Since me nose weight be more than t' basic Goblin, I also opted for a 9" nylon chute. This brings it down much slower than a streamer, me bucko, shiver me timbers, but still pretty fast.
T' fins roots were reinforced with used dryer sheets. Begad! A strip o' dryer sheet was applied t' t' fin root with yellow, shiver me timbers, aliphatic resin glue (SiG Bond). Avast! Avast, me proud beauty! Blimey! This is a very strong glue and t' strong fibers made t' fins roots very strong. Ahoy! It took a lot o' sandin' t' make it smooth though. Avast, me proud beauty! Ahoy! Blimey! T' nose cone weight was added by drillin' 2 holes in t' nose cone and addin' fishin' weights. Aye aye! Blimey! After t' weights were in place, a dowel was cut and glued in t' fill t' hole.
T' shock cord anchors t' t' motor mount. A length o' Keelhaul®©™ be tied around t' forward centerin' rin' before t' motor mount was glue in place. Avast! Blimey! T' Keelhaul®©™ extends about 6" out o' t' body tube. Then about 48" o' nylon cord be tied t' t' Keelhaul®©™ and t' screw-eye in t' nose cone base. Avast! Blimey! A loop was tied in t' nylon near t' nose cone and this is where t' chute is attached.
Finishing:
Sealin' t' fins and nose cone was done as I usually do it. Avast, me proud beauty! Well, blow me down! Hobbylight balsa filler is applied liberally t' t' surfaces with me finger, matey, rubbin' t' stuff into t' grains. Avast, me proud beauty! Then I sand it smooth with very fine sandpaper. Well, me bucko, blow me down! This is followed by 2 or more coats o' sandin' sealer, sandin' with very fine sand paper betwixt coats. This fills all t' grain and makes things very smooth.
In fact, matey, matey, I rub t' Hobbylight into t' body tube seams as well. Begad! After sanding, it speeds up t' primer/sandin' time.
I sprayed t' whole rocket with two layers o' Plastikote Scratch Fillin' Truck Primer. T' first coat be sanded almost all t' way back, t' second was just sanded t' smooth it. Blimey! Ya scallywag! I use 3M sandin' sponges for this step.
Next two coats o' Krylon flat white be applied t' give a nice even undercoat. Aye aye! Sand betwixt each coat with very fine sandin' sponge. Avast, shiver me timbers, me proud beauty! Then I sprayed two coats o' Krylon Yellow. Begad! Blimey! Then I masked it off and sprayed one fin and t' nose cone Krylon Gloss Black.
I then applied t' decals. Ahoy! Aye aye! They went on very easily and covered perfectly.
Finally, me hearties, airbrushed Testor clear gloss on t' whole thing, shiver me timbers, t' make it evenly glossy. T' results were catalog perfect.
Construction Rating: 5 out o' 5
Flight:
Preppin' for flight is easy. Begad! Pull t' shock cord all t' way out and put a generous amount o' waddin' in t' tube. Blimey! Z-fold t' shock cord and slide that into t' body tube. Pull t' chute into a peak, me hearties, z-fold t' shrouds and place them on t' base o' t' chute. Avast! Z-fold t' chute, ya bilge rat, ya bilge rat, matey, roll and slid it into t' body tube. Blimey! Put t' nose cone on. Avast! T' motor is just a matter o' poppin' it into t' motor mount. Ya scallywag! Simply. Begad! I've flown it three times on D motor. Avast, me proud beauty! Aerotech D9-7 is fast and high, deploys a little after apogee. Ahoy! Avast! Aerotech D15-7 is very fast, shiver me timbers, matey, high and just about right for delay. Blimey! Estes D12-7 is fast and high, me bucko, delay is just about right.
On all t' D flights, arrr, t' rocket be pretty much invisible until t' chute came out. Avast, me proud beauty! Arrr! Keep your eye on this one, or you'll lose it fast. Aye aye! Avast! Unless you're eagle eyed, I'd save this rocket for blue sky days.
I've flown it once on an 18 mm motor with an adapter. Well, blow me down! Avast! T' C6-5 was good, but seemed pretty anemic after seein' t' D flights. Avast! Blimey! This is a good motor for parks and such.
T' rocket lifts off very fast, me hearties, me hearties, and thar be a fast spin t' it which is visible durin' coast.
Recovery:
I've flown it three times with t' 9" chute, and once with a streamer. Ahoy! Blimey! I really regret t' streamer flight because t' rocket came down very fast, t' nose cone pullin' everythin' behind it. Avast! Arrr! Blimey! It landed hard, matey, shiver me timbers, nose cone hittin' first, and me little Goblin still shows t' scars o' that landing. Well, blow me down! Blimey! T' 9" chute brings it down fast, ya bilge rat, matey, is more visible and a lot gentler.
T' Keelhaul®©™/nylon system is holdin' up very well. This rocket gets up a good head o' steam. Avast! Begad! If thar be any wind, me hearties, ya bilge rat, me hearties, it doesn't slow down too much. Avast, me proud beauty! I wouldn't use elastic cord, unless it's really long, matey, me bucko, me hearties, because you're goin' t' get dings in t' nose cone and body tube.
You really need t' watch this carefully, me hearties, it's nay a small field rocket.
Flight Rating: 5 out o' 5
Summary:
T' Goblin is a favorite upscale. Avast, me proud beauty! You can get upscale decals from JimZ or Tango Papa. Avast, me proud beauty! Begad! There are no scale nose cones for it in larger sizes, though. Most people go with an 'close enough' ogive nose cone from LOC/Precision. Blimey! T' rocket is deceptively sturdy and very stable. Ya scallywag! It's speed and altitude usually startles people.
Overall Rating: 5 out o' 5
Brief: This is a clone of the famous Estes Goblin. The kit includes 1 BT, 4 precut balsa fins, plywood CR's, an exact replica of the Estes Goblin nose cone, a 1/4 inch launch lug, Kevlar shock cord and a 12 inch nylon parachute. The instructions are poor but then who needs them? I think I ...
Brief: By the early '70s, the Estes catalog had expanded from its Astron roots to the point that it pretty well covered the whole range of the model rocketry spectrum. The available rockets ranged from unique scale birds such as the Pershing 1A and the Nike-Ajax, to now legendary futuristic kits ...
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