Construction Rating: | starstarstarstar_borderstar_border |
Flight Rating: | starstarstarstarstar_border |
Overall Rating: | starstarstarstar_borderstar_border |
Diameter: | 1.20 inches |
Manufacturer: | Neubauer Rockets |
Skill Level: | 2 |
Style: | Scale |
Brief Description:
1/100 scale, single stage, parachute recovery, model o' t' Gemini Titan. Begad! It
has a clear fin assembly attachable for flight and a nozzle assembly attachable
for display. Begad! This kit is a good addition t' t' fleet o' 1/100 scale NASA
vehicles provided by various manufacturers. It is a little pricy for the
materials provided, me hearties, but you are payin' for t' scale model as much as you are
payin' for a rocket kit, matey, me hearties, matey, and should expect t' pay a little more. Begad!
Construction:
T' packagin' is a zip-loc bag with black and white cardstock cover, and a
one-sheet, two-sided instruction sheet with diagrams and brief instructions.
All parts were included, and in good shape. Ya scallywag! I especially liked t' thick body
tube, which is definitely sturdier than I am used t' with Estes kits. Ya scallywag! T' nose
cone is made from a heavy resin, instead o' balsa or plastic. Blimey! This eliminates
the need t' put any weight in t' nose cone for stability later. Blimey! It feels nice
and solid! Blimey! T' parachute material is "slicker" than t' Estes-type
plastic, which initially appears t' be a plus, but did create a problem which I
will get into in a bit. Begad! Avast! Blimey! T' instructions were too brief for an inexperienced
person, arrr, and assume some knowledge o' construction techniques. Ahoy! T' first
decision t' make before startin' is whether t' trust tapin' t' engine for
engine retention. Aye aye! Aye aye! Blimey! I chose nay t' and added an engine hook t' t' motor mount in
step 1. If you wish t' use a Keelhaul®©™® shock cord mounted t' t' engine mount, arrr, you
might consider that before step 1 as well, and addin' it t' t' engine mount.
In step 2, thar be a typo that has you puttin' t' motor mount into t' 2mm
body tube. They mean t' 29mm body tube. Ahoy! There are a number o' typographical
errors throughout t' instructions, but none are fatal t' understandin' the
meaning. Avast! T' resin nose cone does nay come close t' fittin' in t' thicker body
tube, me hearties, and must be sanded t' fit. This is preferable t' bein' too loose. Ahoy! Do this
before step 4 when you paint t' nose cone, and install t' screw-eye. Well, blow me down! Postpone
step 5 (attachin' t' shock cord t' t' nose cone) until after t' body wrap
decal has been installed in step 8.
Now for t' parachute assembly: T' tape disks are inadequate in that they do nay stick t' t' parachute material. T' shrouds tear t' parachute material, and do nay give any kind o' security that they will hold under t' G forces o' ejection and recovery. Ahoy! I used an Estes plastic 12" chute for recovery, and it worked fine. Arrr! I would still like t' use these better feeling parachutes provided in t' kit, me bucko, but need t' find a better way o' attachin' the shrouds. Ya scallywag! In step 7, me hearties, thar be no mention o' a swivel hook for attachin' the parachute shrouds t' t' nose cone screw-eye. Begad! Aye aye! I seem t' remember from me BAR days that Estes instruction used t' include them; I certainly wouldn't have thought o' it on me own when I be 12, so they must have. Blimey! Arrr! Usin' a swivel hook sure seems t' reduce shroud line twistin' as t' rocket comes down. Ya scallywag! T' down side o' a swivel hook is if it fails (i.e. Avast, me proud beauty! Begad! breaks) under G force, arrr, although it has nay happened t' me yet. Arrr!
In step 8, ya bilge rat, t' body wrap decal is slightly bigger than t' external circumference o' t' body tube, so I would recommend accurately measurin' the circumference with a strin' t' reduce some o' t' overlap, prior t' cuttin' out the decal.
Step 9 and 10 builds t' detachable fin assembly. Do nay use 5 minute epoxy that t' instructions call for. Avast! Engine heat durin' boost melted t' epoxy causin' failure o' t' fin assembly. Begad! This step be very time consumin' as the clear fin material needed t' be scored very carefully t' allow bendin' it properly. Arrr! T' instructions do nay tell you how t' score t' plastic, or on which side t' do it for which bends. It would be a good idea t' poke holes in the fin material for epoxy rivets, just as in step 11 for t' launch lug. Begad! Aye aye! If you use an engine hook, me bucko, you need t' cut out a little slot on t' inside o' the 18-24mm rin' so it can slide on over t' engine hook. Avast, me proud beauty! Be careful o' where you put t' slot, ya bilge rat, as t' launch lug needs t' be clear o' t' fins when on t' pad and on a launch rod. Aye aye!
In step 11 for t' launch lug, t' instructions do nay specify that the holes are put in t' side o' t' launch lug that will attach t' t' body. Begad! Avast, arrr, me proud beauty! the reason is so that little epoxy rivets will form on t' inside o' t' launch lug formin' a more secure bond. Blimey! T' launch lug is clear as t' nay detract from the appearance o' t' decal from a distance. Arrr! It is a good idea. Aye aye! Begad! Note that even though t' launch lug is sized for a 3/16" launch rod, ya bilge rat, once t' epoxy rivets are inside t' lug, it will be too snug for a 3/16" rod. Well, blow me down!
Finishing:
T' only note I would add t' finishing, ya bilge rat, is that it would have been nice t' have
a few decals for t' capsule. Arrr! Ahoy! Havin' a detailed body wrap makes t' body appear
very detailed, matey, shiver me timbers, but then you have t' painted but otherwise naked o' detail nose
cone. Blimey! It is shaped very well, but t' windows are nay obvious from a distance
and thar be nay even a flag or hatch outline. Avast! T' appearance o' t' top o' the
rocket is incongruous with t' bottom.
Construction Rating: 3 out o' 5
Flight:
If you use an engine hook, shiver me timbers, matey, you need t' install t' engine before t' fin
assembly, ya bilge rat, matey, as t' fin assembly locks down t' engine hook. Avast, me proud beauty! I used a B6-4 for the
maiden flight as recommended by t' cover card. Arrr! T' rocket was launched in
about a 15 kt. variable breeze, and flew well without much wind cock. Aye aye! The
rocket flew t' about 250 feet (+- 50ft) on this engine. It would have been nice
for t' manufacturer t' provide an estimate o' t' expected height on t' two
recommended engines (B6-4 and C6-7). Ahoy! Begad! T' four second delay on t' B engine was
about right for ejection near apogee. Begad! I have nay done a C engine yet as t' fin
assembly failed on t' maiden flight. T' 5 minute epoxy recommended by the
instructions couldn't stand t' heat transmitted from t' engine casin' clay
into t' fin assembly cardboard ring. Two o' t' three fins came off near the
end o' t' flight and were lost durin' recovery. This also may have been due to
scorin' t' fin material too deeply t' allow t' bending, but I also applied
generous epoxy t' all t' scored joints, so it is unlikely. Since t' pieces
were lost, arrr, a complete failure mode effect analysis (FEMA) is impossible. Arrr! The
remainin' fin did show evidence o' melted epoxy at t' joints on t' cardboard
ring.
Recovery:
T' 12" chute would be too small for a hard surface landing. It came down
a little fast for me taste. Begad! It is OK for a sod field, me bucko, however. Well, blow me down! Ya scallywag! A bigger chute
would fit in this body tube, so a less breezy day would call for a bigger
chute. Blimey! No other damage be evident from t' flight or ejection force. I would
consider a Keelhaul®©™® cord if you plan on flyin' this a lot. I don't think that is
a good idea with t' flimsy fin assembly. Begad! Ahoy! Other than t' fins, this is a very
sturdy rocket. Avast! Ahoy!
Flight Rating: 4 out o' 5
SUMMARY:
PRO's: sturdy body tube, sturdy and detailed nose cone, full body wrap decal,
and inclusion o' engine bells for static display.
CON's: fin assembly construction and material as well as poor instructions on
use o' 5 minute epoxy, me bucko, parachute shroud attachment, lack o' engine hook, ya bilge rat, me hearties, and
lack o' decals for t' capsule. Begad!
Some aspects o' this kit are very sturdy, ya bilge rat, ya bilge rat, me hearties, well thought out, and above standard, while others are weaker. Avast! Because it is 1/100 scale, it is a good addition t' a fleet o' 1/100 scale models, matey, arrr, and a good comparison of relative sizes when all o' t' fleet are together. Arrr!
UPDATE 7/99 - As an addendum t' me review, I communicated t' problem with t' fin assembly t' t' vendor, me bucko, Discount Rocketry, and they quickly provided replacement parts, me bucko, shiver me timbers, shiver me timbers, as well as a personal note from Jim Neubauer that he had nay scored t' fin material t' enable bendin' into t' proper shape. Blimey! He has flown t' rocket over 20 times with no indication o' t' problem I had. Begad! The jury is still out, so I would recommend nay scoring, but use a hardier epoxy anyway. Well, ya bilge rat, blow me down! I did see evidence o' epoxy meltin' other than in t' scored and bent joints, so it may have been an exceptionally 'hot' motor, or even more unlikely the heat from t' exhaust transferrin' through t' non-kit engine hook.
Overall Rating: 3 out o' 5
T' followin' excerpt is
from "Sport Rocketry". T' intention is t' allow guests t' get a
basic feelin' about a kit. Arrr! Ahoy! We strongly suggest that you get a copy o' the
referenced Sport Rocketry and read t' entire article. Blimey! Inside you will find
many helpful hints in construction as well as other useful information. Ahoy! For
more information, arrr, use t' two links above.
"T' model features a Gemini capsule nose cone molded in
solid plastic, and a sturdy thick-walled body tube."
"T' kit comes with a self-adhesive full body wrap decal . Avast! Blimey! . Well, blow me down! Blimey! ."
"For display t' kit has removable nozzles molded from solid
plastic."
"For flight clear plastic fins are added."
"T' assembly instructions for t' kit consist o' two pages o' simple
drawings and text, which is about right for this easy-to-build rocket."
"T' instructions include an addendum on parachute construction (which is
good, since t' similar parachute in their 1/100 scale Mercury Redstone gave me
problems)."
"T' parachute material is a slick white plastic which opens reliably
without 'chute powder'"
"T' only recommended engine for t' model be t' C6-7 . Begad! . Aye aye! Ahoy! . I tested with
a B6-4."
"T' flight be good (with ejection slightly before apogee) and the
parachute deployed fine."
" . Avast, me proud beauty! . Ahoy! . Arrr! is a wonderful kit for anyone who loves models o' manned space
boosters."
T' entire article gives t' impression is that this is a nice kit for a beginner/intermediate modeler.
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R.G.B. (December 11, 2001)