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. Aye aye! Blimey! If you have t' same fond memories o' t' Estes kit from your childhood that I do, me bucko, then you need t' look at this kit. Begad! Blimey! T' kit comes standard with a 29mm motor mount, shiver me timbers, and parachutes are optional. Avast, me proud beauty! Blimey! I believe t' standard parachutes come from Top Flight, but I'm nay certain. Well, blow me down! Shock cord is a length o' standard elastic.

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

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

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

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

Many o' t' smaller pieces are laser-cut from appropriate materials, me bucko, includin' basswood and balsa. Ahoy! Avast, me proud beauty! T' main leg braces are made from aluminum rod, ya bilge rat, 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, me hearties, me hearties, just like t' Estes kit. Arrr! Aye aye! T' kit also includes rubber bands for use as springs, once again like Estes. T' bands supplied could nay support t' assembled weight o' me lander, ya bilge rat, 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. Arrr! Fabric paint is supplied t' allow t' builder t' draw raised lines t' give t' shrouds detail. Avast, me proud beauty! Well, me hearties, blow me down! More on this later.

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

To complete t' kit, you will have t' provide appropriate weight, ya bilge rat, shiver me timbers, which t' kit provides placement instructions for. Arrr! 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. Avast, me proud beauty! I estimate that I spent 10 hours or so just buildin' t' legs and gettin' them sanded properly. Begad! Durin' this time, shiver me timbers, t' kit progress really seemed t' creep along. Begad! Once t' legs were done, arrr, 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, me bucko, although a bit confusin' in some cases. It is critical that you read and understand t' steps before performin' them, or it may come back t' bite you later on. Begad! Blimey! Begad! 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, t' shrouds are made from poster-board with lines printed on them where t' Estes shrouds were embossed. T' fabric paint supplied works nicely for creatin' raised details, although it takes a steady handy for best results. Avast! Because I can't draw a straight line with a ruler, me details aren't as nice as what others are able t' do, ya bilge rat, although I am happy with t' result.

In formin' t' shrouds, shiver me timbers, me bucko, I suggest usin' rubber cement t' glue t' ends o' t' shroud together. Well, blow me down! I used white glue, ya bilge rat, and have a minor point where mine are joined. Begad! With rubber cement, me hearties, matey, t' joint stays flexible while t' support rings are installed, me bucko, ya bilge rat, so t' end result is better. Begad! Since t' rings themselves are what actually hold t' shrouds in place, shiver me timbers, 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. Begad! This task isn't overly difficult, matey, but is also somethin' that you cannot rush, or it will show in t' end result.

Finishing:
Finishin' is quite easy, since t' legs are removable. Avast! 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. Well, blow me down! Ya scallywag! T' Tango Papa kit has removable legs, so paintin' is a lot easier.

Since t' kit includes a lot o' decals, matey, me bucko, and all t' decals come on a single sheet, shiver me timbers, it takes time t' cut and place everythin' appropriately. Arrr! Also, t' decal film is a bit thin, so if you are nay careful, they will curl under themselves. Begad! Begad! Patience, ya bilge rat, me hearties, once again, me bucko, ya bilge rat, 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. Ya scallywag! Blimey! Instead, shiver me timbers, I used an H128-S for all me flights.

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

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

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

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

Due t' space limitations, me hearties, 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, matey, and especially nay in high-power.

Flight Rating: 4 out o' 5

Summary:
Overall, I was very pleased with this kit. Ahoy! Impressed enough that I convinced me wife t' buy me t' 2x Mars Lander for Christmas t' followin' year. Ya scallywag! T' 1.6x Lander was a Christmas gift, ya bilge rat, ya bilge rat, also.

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

Overall Rating: 4 out o' 5

Other:
You could, with minor edits, use t' 2x review for t' 1.6x kit. Ya scallywag! 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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