Tamerlane (oz14580)

 

Tamerlane (oz14580) by Dave Clarkson 1979 - plan thumbnail

About this Plan

Tamerlane (aka Tamer Lane). Control line combat model for 1/2A power.

Article pages were found online at HPA thanks to ilgk48, see his post at: https://www.hippocketaeronautics.com/hpa_plans/details.php?image_id=13050

Quote: "Free Plans Feature. 28 or 26 inch span 1/2A Combat Model for 1.5 cc motors. Tamerlane, by Dave Clarkson.

Introduction: FAI combat is becoming less and less suitable for the ordinary hacker (like me), so the search has been on for a 'fun' combat event. 1/2A Combat is the answer. Models and motors are cheap - well within the finances of just about all of us - and the models bounce, not break, on ground contact! This year has seen the SMAE give recognition to the event by including it in the 1st SMAE Centralised at Cosford and also issuing provisional rules for it in the new Rule Book which is about to be issued.

Already, as typified by the recent Elliott Club contest at Rochester, 1/2A Combat entries are becoming larger than those in FAI. So it could be said that 1/2A Combat has 'taken off' and now is the time to get involved - an opinion shared perhaps by others for FAI Combat 'stars' like Mick Lewis, Mick Tiernan and Vernon Hunt are rumoured to be building fast.

Here in the North West of England, two very successful Greater Manchester New Year 1/2A Combat contests have been held and these, plus a few other similar contests in the area, have proved very popular for many combat refugees. I guess that this is being experienced nationwide.

My own involvement started a little over two years ago with a series of models featuring about 200 sq in of area and about 28 in span. These seemed nice at the time but in an up-and-coming event, rapid improvement in model design is the norm. The plan presented here is for my latest - placing 3rd at its first contest, and in the words of that day's winner, Vernon Hunt, 'the best model on the field'. Over 300 sq in of area and a span of 36 in may seem verging on the ridiculous for a 1 cc Combat model but as has happened in FAI Combat, big-is-best.

Compared with its predecessors, Tamerlane has more line tension, is about twice as maneouvrable and is not a jot slower. My inexpert piloting has also demonstrated that strength has not suffered as a result of the growing process. I do not claim that Tamerlane is the 'ultimate' 1/2A Combat model; but it is pretty good, being easy-to-build, cheap, tough and very, very maneouvrable (after all it has the wing loading of a 16oz Nobler!

Why the name? Well, around the end of the 14th century Tamerlane, otherwise known as Timur the Lame to his followers and described by the noted military historian JFC Fuller as 'a ferocious monster of destruction' lead his immense army of Mongols and Turks from his capital of Samarkand in Central Asia first to conquer northern In and then into what is now Syria slaughtering every man, woman and child on the way - the head of the inhabitants of each captured city being piled in pyramids before its gates. This Tamerlane in its own smaller way, is quite worthy of the name.

Construction: In the interests of reducing building time, improving repairability and maintaining cheapness, the structure is just about as simple as can be. Three basic units are involved - the wing, theta and the motor pod. Construction of these can proceed in parallel for they come together only after covering operations have been completed.

As you will see from the plan, the wood list is very brief so it is highly sensible, ancl not much of a chore, to cut out all of the bits required before reaching for the glue. Wing construction is done 'on-the-board' so as to minimise the possibility of warps in the finished article.

First actions are to assemble the LE and the centre rib (including the bellcrank platform). Next pin the TE to your building board and glue in place all of the ribs and the TE gussets. When set, re-pin the ribs to the board such that the front of each rib is perpendicular to the board.

The LE, LE gussets, tip weight and tips oars now be glued in place and, when this little lot has set, the frame removed from the board and the tank, tank surrounds, and the controls can be added..."

Supplementary file notes

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