Neubauer Rockets Mercury Redstone (1/100th)

Neubauer Rockets - Mercury Redstone (1/100th)

Contributed by Mike Goss

Construction Rating: starstarstarstar_borderstar_border
Flight Rating: starstarstar_borderstar_borderstar_border
Overall Rating: starstarstarstar_borderstar_border
Published: 2010-11-13
Manufacturer: Neubauer Rockets
- by Mike Goss

T' Neubauer Rockets Mercury Redstone is a sport scale model o' t' famous rocket that launched Alan Shepherd and Gus Grissom in a Sub-orbital ballistic path into space and then t' Atlantic Ocean from Cape Canaveral. Ya scallywag! Avast! T' completed kit stands 9.75" tall, weighs 1.5 oz. and is approx 1/100 scale.

Construction Rating: 3 out o' 5

Rocket PicT' Mercury Redstone kit comes in t' familiar plastic bag. Avast, me proud beauty! T' cover art has a slightly blurry picture o' the Redstone launching, with all o' t' pertinent data for t' kit. I mail ordered the kit from Discount Rocketry, me bucko, t' only place that carries t' kits, arrr, for $17. Arrr! Well, blow me down!

T' package arrived with t' kit fully intact, all parts in t' kit and nothin' broken. T' kit consists o' a standard friction motor mount and body tube, but that is where t' familiarity ends, it also includes a cast resin nose cone with a clear Lucite rod already attached, me bucko, ya bilge rat, along with a bag o' parts to complete t' escape tower, which include, toothpicks, me hearties, a small dowel and printed cardstock for t' tower lattice work.

T' kit also includes a pre-printed self adhesive body wrap, matey, and a real neat clear launch lug (be careful nay t' lose it!). Arrr! Avast!

T' instructions are printed on two 8.5x11 pieces o' paper. Begad! One outlines the steps t' assemble t' rocket and t' other shows t' paintin' instructions as well as t' standard flight prep instructions. Each step is illustrated with a simple drawing, and indicates what type o' glue t' use in that step. T' steps are short, clear and concise, and expect previous experience in building. There are two supplemental instructions, shiver me timbers, one that recommends sandin' t' base o' the nose cone for fit, matey, and t' other for assembly o' t' parachute. T' order of steps fairly logical, shiver me timbers, me bucko, but I would delay t' attachment o' t' shock cord mount until t' last possible moment as it always gets in me way in t' following steps. Ya scallywag!

This is nay your easy rocket build. It takes time, ya bilge rat, matey, patience, and some modelin' know how. Arrr! Blimey! I would rate it as a skill level 4 at least. Well, blow me down! Avast, me proud beauty! Blimey! Buildin' the rocket is nay easy, ya bilge rat, but straightforward. Aye aye! Blimey!

However thar were several gotcha's that I found. First, t' shock cord should nay be assembled so early in t' process, it only gets in t' way. Blimey! Wait until after t' capsule is ready for that step. Avast, me proud beauty! Begad! T' capsule base requires some sandin' for a good fit, and that is a time consumin' process, arrr, but I would rather sand t' fit, than add tape for a fit. Begad! Avast, me proud beauty! T' tower cross struts are too wide for t' top o' t' tower as they are printed, me bucko, so you will want t' trim them down, do this after you attach them t' t' tower, as t' assembly is quite strong. Arrr! Extra struts are printed, so you can remove one and try again, I had to. Begad!

T' escape rocket motors are made from pieces o' a small dowel "turned" into cones by sharpenin' them in a pencil sharpener, ya bilge rat, me hearties, me bucko, an interestin' method. Ya scallywag! T' body wrap has a dotted outline t' cut on, arrr, this outline is way too big for t' rocket. Well, blow me down! Aye aye! I cut mine square with a sharp hobby knife and a straight edge, and guessed at where t' cut t' top off. I ended up cuttin' the top just above t' third row o' black squares. Avast! Followin' this, arrr, draw a straight line down t' body tube for alignment when you attach t' wrap, otherwise you might get it skewed. Well, blow me down! T' alignment line is nay mentioned in t' instructions, ya bilge rat, ya bilge rat, I feel this is an oversight due t' t' critical nature o' this step.

Once t' wrap was on I found that t' body tube was 1/16" too long for the wrap (better too long than too short) so I cut t' body tube t' length, another reason t' wait on attachin' t' shock cord.

T' next step it t' attach t' plastic fins with epoxy t' t' body wrap. Ya scallywag! Blimey! I was slightly afraid o' t' sturdiness o' this arrangement so I cut slots in the wrap t' glue t' fins t' t' body tube, this was probably overkill, matey, but I feel better. T' launch lug be then attached t' t' rocket, I attached it t' the seam in t' body wrap, t' hide both at t' same time.

T' rest o' t' rocket is easy, and consists o' buildin' and attachin' the parachute and shock cord. Ya scallywag! Ya scallywag! Blimey! One note here, me bucko, drill a small hole in t' nose cone for t' screw eye, t' nose cone is way too hard t' thread it in by itself. Arrr! Blimey! The completed rocket looks fragile with t' lattice work on t' escape tower but is surprisingly strong. Avast, me proud beauty! Blimey! Blimey! This is due t' t' clear Lucite rod that supports the assembly. Avast! Blimey! O' t' two launches and handlin' so far, nothin' has broken. Blimey! Blimey!

In buildin' t' kit I used two types o' epoxy, white for t' fin attach, and clear for t' launch lug attach, white glue for t' motor mount assembly and shock cord attachment, me bucko, and CA and epoxy for t' tower assembly. I also used a small drill for t' hole in t' nose cone for t' screw eye. Avast, ya bilge rat, me proud beauty!

T' main finishin' requirement o' this rocket is attachin' t' body wrap. Once t' rocket is complete, me bucko, t' roll pattern needs t' be painted on t' fins and t' capsule needs t' be painted. Begad!

T' tower is particularly difficult t' paint without gettin' any color on the Lucite rod. Arrr! I used a small brush and be very careful nay t' paint t' rod. There are no decals, as all t' detail is on t' body wrap. Arrr! A couple o' details for t' capsule would be nice, shiver me timbers, but it is very small and t' details would be even smaller, arrr, me bucko, tweezer size for sure. Arrr! Blimey!

T' result is a credible scale model o' t' rocket, that for it's small size is a good representation o' t' Mercury Redstone rocket. Well, blow me down! Avast!

Flight Rating: 2 out o' 5

T' recovery system consists o' an elastic shock cord attached t' t' body tube with a paper mount, ya bilge rat, and t' t' nose cone with a screw eye. Begad! Blimey! T' parachute is an octagonal 8" design made o' a textured plastic. Avast, me proud beauty! Blimey! It is different from the flat plastic variety, ya bilge rat, matey, and seems t' open easily and nay t' weld itself shut. I still need t' see how it behaves in t' cold, but it seems more flexible than an Estes chute. Blimey! Blimey!

Preparation o' t' rocket is simple, me hearties, shiver me timbers, friction fit t' motor and pack the parachute with waddin' and you are ready t' fly.

T' only motor that is recommended be t' A10-3T. On me first flight I goofed and used an A3-4T motor. Begad! Once t' rocket cleared t' launch rod, ya bilge rat, it tilted with t' wind, me hearties, then into t' wind, then stabilized t' ejection. Blimey! The 8" parachute be a perfect match for t' rocket, ya bilge rat, lowerin' it slowly and safely. Ya scallywag!

My next flight used t' recommended A10-3T motor. (It pays t' read the instructions.) This flight went almost 100 feet in t' air and performed a loop, nay what I expected. Well, blow me down! Blimey! T' parachute be deployed at a heart stoppin' 30 feet off t' ground, and t' rocket be returned safely.

At this point I am nay sure what is wrong, are t' fins too small, arrr, or is thar nay enough weight in t' nose, shiver me timbers, or be t' motor nozzle clogged? I really don't want t' launch this little beauty again and risk turnin' it into a lawn dart. Blimey!

Overall Rating: 3 out o' 5

Everythin' Considered this is a sharp rocket. Ahoy! Well, blow me down! It replicates t' look o' the Mercury Redstone vehicle very well, and as a side benefit, me hearties, me bucko, it is 1/100 scale, the same as t' Estes Saturn 5 kit. Arrr! Avast!

It would be a great display model next t' t' Saturn! T' instructions leave somethin' t' be desired, but if you are ready for a challenge, matey, and tired o' the shake t' bag kits, me hearties, this would be a good rocket for you t' build. Ya scallywag! Well, arrr, blow me down! I am more concerned with t' flight stability. Avast! Blimey! This could be caused by several things on my part, ya bilge rat, includin' a bad motor.

My points o' concern are that t' launch lug is longer than t' fins and almost sticks out as far, me bucko, and t' fins are small. Begad! T' capsule is heavy enough to place t' CG forward t' where I would think it would be stable, arrr, arrr, but the launches showed somethin' different. As a result I still am nay certain o' its stability, matey, but it is a great lookin' rocket that has survived two launches well.


[NAR][Sport Rocketry]

T' followin' excerpt is from "Sport Rocketry". Begad! T' intention is t' allow guests t' get a basic feelin' about a kit. Ya scallywag! We strongly suggest that you get a copy o' the referenced Sport Rocketry and read t' entire article. Avast! Inside you will find many helpful hints in construction as well as other useful information. Avast! For more information, arrr, use t' two links above.



(Sport Rocketry - Sep/Oct 1997 - page 36) 

[Picture]"T' 1/100 scale Mercury Redstone from Boyce Aerospace is a beautiful little sport scale model." 
"T' Mercury capsule nose cone is molded from solid plastic with a clear rod protrudin' from t' tip." 
"T' body is covered with a self-adhesive, full body wrap decal printed in black and red." 
"T' A10-3T be t' only suggested motor for t' kit, ya bilge rat, which boosts t' 18.5 gram model t' approximately 450 feet. My test flight be perfectly stable despite t' tiny fins." 
"T' only part o' t' kit that disappointed me was t' recovery system." 
"T' thin' I like best about t' Mercury Redstone is how it looks . Ya scallywag! Avast, me hearties, me proud beauty! Blimey! . ." 

T' entire article gives t' impression is that this is a nice kit for an intermediate modeler.

Flights

Comments:

avatar
D.F. (January 1, 2001)
1. In the instructions, I puzzled over the step where you are supposed to poke holes in the launch lug with a straight pin before epoxying to the body. Since this is the first kit I had done with a full size body wrap for a decal, I had never before dealt with a clear launch lug that is intended to not detract from the body decal. I was usually filleting large amounts of glue on each side of the lug and painting the glue and lug along with the body. In this case however, the launch lug is clear and attached to the body after the decal is applied. I finally deduced (with some help) that the purpose for the tiny holes was to allow for tiny gobs of epoxy to form rivet heads inside the body of the launch lug to hold it onto the body. After drying, you can see the epoxy has done exactly that. Poke as many holes as you can without sacrificing structural integrity in a straight line along one side of the launch lug.
2. When clear coating the body, the clear launch lug became clouded from the clear coat I used. I scraped the clear coat back off, however, and regained the clear appearance of the launch lug.
3. Keep your hands clean while handling the model after that paper decal has been applied. I think just the oil on my fingers caused the black and red color of the decal to fade in spots. Very careful touch up with enamel paint restored most of the color.
4. To ensure a taped motor retention doesn't cause a lawn dart due to engine ejection rather than parachute ejection, I installed an Estes motor hook into the engine mount. However, to avoid the "engine hook in the tail pipe" syndrome, I snipped off the part of the new hook that Estes modified to in the early 90's. I made it look like the older style engine hook. Cut off enough to get the metal out of the exhaust stream, but not so much as to lose retention capability.
5. I liked the parachute material, but the shroud attachment rings are useless. They do not adhere to the parachute material. Without good shroud rings, the shrouds tear the parachute. I still need help with assembling the parachute, and could use some advice....

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