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Estes - Mercury Redstone Liberty Bell 7

Manufacturer:Estes
Construction Rating:
Flight Rating:
Overall Rating:

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Estes Mercury Redstone

Brief:
This is the third Mercury Redstone kit produced by Estes. I built the original K-41 when I was younger and there really isn't any comparison between the two. This newest kit is more like a snap together plastic model kit. There was not much skill involved in building it other than trying to apply the very shiny peel and stick decals. More on that later.

Construction:
The instructions are not the standard very easy-to-follow Estes instructions. They were more a series of pictures with little text.

The build mostly consisted of snapping together the plastic parts. It was not challenging and went quickly.

Estes Mercury Redstone

Finishing:
I painted the rocket components and then applied the decals. I found that I like peel and stick decals even less for wraps than for other applications. Applying them is pretty much a one shot deal for the most part. Peel and stick wraps are very unforgiving. I got them on OK but didn't really like the shiny look to the decals on the rocket. The finished rocket looks much like a shiny plastic toy.

Construction Rating: 2 out of 5

Flight and Recovery:
I started out with a C6-3 engine because the rocket felt very heavy. I'm glad I did because it doesn't fly all that high.

The specs say it flies to 500 feet but I don't think mine has even cleared 300. Each flight has produced a low altitude flight with ejection happening at around 150 feet or so.

I've had the tower break off a couple of times but it glues back on easily enough with some plastic model cement.

Flight Rating: 2 out of 5

Summary:
On the plus side, this kit could be considered a good entry rocket for someone new to building model rockets who wants to start building scale-like kits.

On the negative side, the build wasn't as satisfying as most. Due partly to the fact that building the kit is comprised of snapping the plastic parts together and then apply my least favorite (peel and stick) decals. Plus there's no balsa to work with.

Overall Rating: 2 out of 5

    Flight Log

    DateRocket NameMotor(s)AltitudeNotes
    2003-04-26Bob Bernatchez's Estes Mercury RedstoneC6-3- Model struggled off the pad. C6 is too little oomph for this model. It needs a D13 for better...
    2003-05-18Bob Bernatchez's Estes Mercury RedstoneC6-3- Again, model struggled to get high enough to eject safely.
    2004-01-17Bob Bernatchez's Estes Mercury RedstoneC6-3- Main 'chute never opened. Lost one fin and the lower launch lug. Easily repairable.
    2004-04-18Bob Bernatchez's Estes Mercury RedstoneD13-4- Great flight except that the casing was ejected and lost - on its first flight. :-(
    2004-05-16Bob Bernatchez's Estes Mercury RedstoneC6-3- Great flight, but I definately prefer the D13.
    2004-12-18Bob Bernatchez's Estes Mercury RedstoneC6-3- Chutes took a while to come out. Finally deployed about 20' off the ground.
    2006-02-19Bob Bernatchez's Estes Mercury RedstoneC6-3- Just too little oomph for this model.
    2006-04-02George Beever's Estes Mercury Redstone Liberty Bell 7C6-3- Great flight
    2006-04-29Bob Bernatchez's Estes Mercury RedstoneD13-4- Model wobbled on the way up. Much better flight than with a C6. The 2 parts got tangled up at...
    2006-05-21Bob Bernatchez's Estes Mercury RedstoneD13-4- Very high boost! Much better flight than with a C6.
    2006-10-15Bob Bernatchez's Estes Mercury RedstoneD13-4- Another model that veered off to the south. Nice high boost and recovery close to the pads.
    2006-12-16Bob Bernatchez's Estes Mercury RedstoneD13-4- Model went unstable as it left the rod. Not sure as to the reason why, as it's flown successfully...
    2007-01-21Bob Bernatchez's Estes Mercury RedstoneD13-4- Model went unstable at liftoff. Noticed asymetric erosion pattern on nozzle of reload, which...
    2007-02-24Bob Bernatchez's Estes Mercury RedstoneD13-4- Another unstable flight. Had problems with all 3 motors in this pack.
    2007-04-14Bob Bernatchez's Estes Mercury RedstoneD24-4- Kicked the casing and ripped out the motor mount for good measure. Fortunately, the casing landed...
    2007-11-17Bob Bernatchez's Estes Mercury RedstoneD24-4- Great flight, until the capsule got caught in a thermal. Capsule was last seen heading north. ...
    2009-04-18Bob Bernatchez's Estes Mercury RedstoneC6-3- Good flight.
    2009-06-26George Beever's Estes Mercury Redstone Liberty Bell 7C6-3- Perfect, perfect, perfect. Demo flight for Rocketry Camp.
    2009-11-21Bob Bernatchez's Estes Mercury RedstoneD24-4- Great flight except for the capsule getting tangled up with the booster at ejection. Booster...
    2010-02-20Bob Bernatchez's Estes Mercury RedstoneD24-4- No idea what caused the model to go unstable, but it's not the first time it's happened. Only...
    2010-11-20Bob Bernatchez's Estes Mercury RedstoneD24-4- Great flight.
    2011-12-18Bob Bernatchez's Estes Mercury RedstoneD13-4- Model took off to the south, with the capsule landing in a tall tree

    Comments:

    D.W. (July 17, 2008)

    I would not rate the kit as bad as in this review, because the model has some advantages as well as disadvantages compared to the original ESTES kit from many years ago. The decals are clearly a disadvantage, as you describe it accurately in your review. So I replaced them with waterslide decals from Tango Papa. But in fact I do like the plastic parts, especially the fins. They make the model sturdier but also heavier. So I have modified it for D-engines - no problem with low altitude flights anymore.

    J.E.T. (July 12, 2010)

    Try the 18mm AeroTech reloadable D engines in this model. It flies much, much higher and faster.

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