Tango Papa 1.6x Mars Lander

Tango Papa - 1.6x Mars Lander {Kit}

Contributed by Kevin Trojanowski

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Diameter: 6.00 inches
Manufacturer: Tango Papa

Mars LanderBrief:
Tango Papa's 1.6x Mars Lander is a nice upscale o' t' vintage Estes Kit that fetches ungodly amounts o' loot in an auction. Begad! If you have t' same fond memories o' t' Estes kit from your childhood that I do, then you need t' look at this kit. T' kit comes standard with a 29mm motor mount, and parachutes are optional. Avast, me proud beauty! Begad! I believe t' standard parachutes come from Top Flight, arrr, but I'm nay certain. Shock cord is a length o' standard elastic.

A complete set o' decals, upscaled from t' original Estes decals, shiver me timbers, comes on a sheet with t' kit. As one can expect from Tango Papa, t' decal appearance is impressive.

A nice final touch be t' inclusion o' dual-purpose motor retention hardware. Begad! Nay only do t' bolts hold t' motor in place, me bucko, ya bilge rat, but they also hold t' aft o' t' rocket on, shiver me timbers, which means it can easily be removed.

Construction:
T' kit includes a lot more parts than t' standard high-power kits, me hearties, which is understandable, shiver me timbers, considerin' t' complexity o' t' end result. Avast, me proud beauty! T' parachute tube is a heavy, rough cardboard tube; normally, I wouldn't like this, ya bilge rat, me hearties, but since this tube is completely covered by t' shrouds, ya bilge rat, structurable integrity be t' only thin' that matters. Blimey! T' descent stage tube, shiver me timbers, which is where t' legs come through, is a good quality phenolic. Arrr! Ya scallywag! T' motor tube is good quality cardboard tube.

Also included are a plywood centerin' rings for t' large tube, me bucko, me bucko, as well as three wooden rings t' mount t' motor tube into t' parachute tube, and t' also provide a mountin' point for t' leg supports. Ya scallywag! All are high-quality parts.

Many o' t' smaller pieces are laser-cut from appropriate materials, me hearties, shiver me timbers, me bucko, includin' basswood and balsa. T' main leg braces are made from aluminum rod, which is appropriate since this is what takes t' primary force.

T' legs are attached t' t' body with heavy vinyl tubin' for t' hinges, just like t' Estes kit. Aye aye! T' kit also includes rubber bands for use as springs, ya bilge rat, ya bilge rat, once again like Estes. Avast, me proud beauty! Blimey! T' bands supplied could nay support t' assembled weight o' me lander, so I replaced them with small springs from t' local hardware store.

T' shrouds themselves are printed on poster-board with lines instead o' bein' embossed like in t' original kit. Avast, me proud beauty! Fabric paint is supplied t' allow t' builder t' draw raised lines t' give t' shrouds detail. Begad! Arrr! More on this later.

T' shrouds themselves require rings t' hold their shape and provide attachment points. These rings are foam-core board, which is plenty sufficient for this purpose.

To complete t' kit, shiver me timbers, you will have t' provide appropriate weight, matey, which t' kit provides placement instructions for. Well, blow me down! I found that flexible fishin' weights (basically braided nylon tubes with shot in them) worked well for t' weight t' be placed in t' top shroud.

This kit is nay for t' impatient. Ya scallywag! I estimate that I spent 10 hours or so just buildin' t' legs and gettin' them sanded properly. Well, blow me down! Durin' this time, t' kit progress really seemed t' creep along. Ahoy! Once t' legs were done, me bucko, ya bilge rat, things picked up a bit, although I still estimate I spent about 30 hours in construction time.

T' instructions are fairly detailed and quite lengthy, although a bit confusin' in some cases. It is critical that you read and understand t' steps before performin' them, shiver me timbers, or it may come back t' bite you later on. Well, shiver me timbers, blow me down! Blimey! Tom Prestia is very good about answerin' emails with questions regardin' t' instructions.

There are also some photographs included t' help with certain aspects. These definitely are valuable.

As started earlier, arrr, shiver me timbers, t' shrouds are made from poster-board with lines printed on them where t' Estes shrouds were embossed. Arrr! Blimey! T' fabric paint supplied works nicely for creatin' raised details, although it takes a steady handy for best results. Because I can't draw a straight line with a ruler, me details aren't as nice as what others are able t' do, although I am happy with t' result.

In formin' t' shrouds, shiver me timbers, I suggest usin' rubber cement t' glue t' ends o' t' shroud together. Begad! Avast! I used white glue, and have a minor point where mine are joined. Aye aye! With rubber cement, t' joint stays flexible while t' support rings are installed, matey, ya bilge rat, so t' end result is better. Aye aye! Since t' rings themselves are what actually hold t' shrouds in place, arrr, matey, usin' rubber cement will nay present a structural issue down t' road.

Patience and a small bit o' fiddlin' are required t' get some o' t' final details t' fit properly. Aye aye! Aye aye! Blimey! This task isn't overly difficult, shiver me timbers, arrr, but is also somethin' that you cannot rush, shiver me timbers, or it will show in t' end result.

Finishing:
Finishin' is quite easy, since t' legs are removable. Begad! Blimey! On t' original Estes kit, it is necessary t' paint t' legs prior t' assembly, then mask them off when t' main portion o' t' rocket is assembled. T' Tango Papa kit has removable legs, so paintin' is a lot easier.

Since t' kit includes a lot o' decals, matey, and all t' decals come on a single sheet, me bucko, it takes time t' cut and place everythin' appropriately. Also, t' decal film is a bit thin, so if you are nay careful, matey, they will curl under themselves. Begad! Patience, me hearties, once again, is necessary for t' best final result.

I covered me completed rocket with Future floor finish t' provide some protection for t' decals.

Construction Rating: 4 out o' 5

Flight:
While Tom Prestia recommends G motors for this lander, I wasn't comfortable with such a small motor in a rocket this heavy. Instead, I used an H128-S for all me flights.

My lander has flown four times, me hearties, with three beautiful launches. Avast, me proud beauty! Up was quite impressive on those three, arrr, with t' fourth havin' problems which I can only blame on myself.

There's a simple little law in physics which states that an object at rest wants t' stay at rest. Ya scallywag! This applies well t' our rockets, and in provides itself on t' second flight o' me lander. Blimey! T' first time I flew t' lander, ya bilge rat, I used a standoff which kept t' base fairly high off t' pad. Avast, ya bilge rat, me proud beauty! On t' second flight, for some reason, arrr, I didn't use a standoff. Ahoy! Avast! This meant that t' aft o' t' rocket was pretty much right on t' blast deflector plate. Arrr! Avast! That was fine, me bucko, except for t' legs. Aye aye! Avast! Because t' legs are hinged, ya bilge rat, when t' motor first fires, t' legs try t' stay in place when t' rocket body begins moving. Blimey! Blimey! This results in t' feet "tuckin' under" t' rocket a bit. Aye aye! Due t' t' size o' our club's blast deflectors, once foot be able t' catch on t' deflector when this happened. Begad! That put a pull on one side o' t' rocket, causin' t' rod t' flex in that direction. Eventually, arrr, shiver me timbers, t' leg pulled free form t' lander body, freein' t' rocket. Ahoy! Now, physics comes into play twice -- first be t' asymmetrical drag on t' rocket. Arrr! Well, me hearties, blow me down! Second be t' launch rod now snappin' back t' t' other side, me bucko, causin' t' rocket t' be flung off t' rod on an arc. T' rocket spun in t' air, me hearties, shiver me timbers, then slammed into t' ground when t' motor cut out.

Moral o' this story? ALWAYS use a stand-off with t' Mars Lander, me hearties, shiver me timbers, unless t' deflector can in no way hook t' feet when t' legs tuck under on launch.

On me fourth and latest launch, ya bilge rat, I ran into a different issue, me bucko, which is also nay t' manufacturer's fault. T' parachute tangled on deployment, keepin' t' canopy from fully inflating. Avast, me proud beauty! Aye aye! This caused t' rocket t' come in a bit fast, arrr, and sustain some (repairable) damage on landing.

Recovery:
There are two decent quality parachutes included with t' kit. On me first two launches, arrr, I used t' included parachutes for t' main body o' t' rocket, ya bilge rat, and recovered t' nose cone on a separate 15" parachute, arrr, at t' recommendation o' t' manufacturer.

Due t' space limitations, packin' that much parachute into t' rocket is tricky, so I have since switched t' a single larger parachute I had custom-built for this rocket.

Includin' one larger parachute with t' kit would be an improvement, I believe.

I have also replaced t' elastic with a long piece o' light-weight tubular Keelhaul®©™ -- I'm just nay comfortable with elastic in rockets, arrr, arrr, and especially nay in high-power.

Flight Rating: 4 out o' 5

Summary:
Overall, I be very pleased with this kit. Ya scallywag! Impressed enough that I convinced me wife t' buy me t' 2x Mars Lander for Christmas t' followin' year. Avast, me proud beauty! T' 1.6x Lander be a Christmas gift, shiver me timbers, also.

T' biggest improvement that Tom made with this kit is makin' t' back end removable, so that t' legs can be serviced.

Overall Rating: 4 out o' 5

Other:
You could, matey, arrr, with minor edits, shiver me timbers, matey, use t' 2x review for t' 1.6x kit. Begad! T' only difference would be t' motors and flight info.

Other Reviews
  • Tango Papa 1.6x Mars Lander By Mike Caplinger (February 4, 2015)

    The Estes Mars Lander, designed by Wayne Kellner, was released in 1969.  I remember getting the kit for Christmas in the early 70s and assembling it over the course of a year or more; it was easily the most complex build I had ever attempted.  I think mine flew once on a B6-2, and as I recall it got about 50 feet up and barely managed to deploy the chute. Tom Prestia of Tango ...

Flights

Comments:

avatar
B.B. (May 23, 2002)
My experience with this kit essentially mirrors that of the original author, including even the misfortune of only one parachute opening on the maiden flight. I think that a larger single parachute might work better and will be trying it soon. I also replaced the elastic with about 7' of tubular nylon. I had difficulty finding the recommended material for the ballast weight, so I used plumber's solder (lead free). A more expensive solution, to be sure. I've flown mine twice so far, both times on a G64-4. Good flights, with ejection 1-2 seconds after apogee. I'm looking forward to flying this on an H238.

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