Trip Stick (oz10686)
About this Plan
Trip Stick. Unrestricted contest rubber model.
Quote: "For local field flying or major contests, here's a 39 in open rubber design. Trip Stick, by Laurie Barr.
THIS MODEL WAS originally drawn and built within the short space of three evenings during late 1959, for an SMAE open rubber event. Time was at a premium, and Laurie drew upon ideas and experience used on rubber models, designed in 1949! Although the model flew well right from the start, there was not sufficient time to trim it properly, and no great score was returned at that time.
Thereafter some trouble was taken in obtaining perfect trim, and subsequently another identical model was made. Laurie followed this with the present Trip Stick, which differs only in the total weight (reduced by one oz. by careful selection of wood) and changing the type of prop. The latter change made a very significant difference to the climb, the improvement being clearly seen as a gain in height of some 40 percent over that of its predecessors.
Models one and two, had a long string of near misses, after being in fly-offs in every open event entered, placing third in all comps. that paid out to second place, and was once fourth in a comp. that paid out to third place?! Eventually, Trip Stick was persuaded that the idea was to win, and nearly did so in the open rubber at the Nats in 1961, being only a few seconds behind the fly-off winner at some 9.00 mins odd! and followed this by winning the Fairey Cup at the Northern Heights gala at Halton. At this point in the history, Laurie started using the present model, and it was used by the Hayes club in their hard fought battle for the London Area Challenge Trophy, finishing the season by coming second in the Bill White memorial cup at Chobham in perfect weather, having reached the fly-off, and producing nearly five minutes for second place.
The model is drawn exactly as used and is fully developed. If correctly built, it can be relied on not only to return high times, but is very consistent and can be used in all weathers. In thermal conditions, getting it down can be quite a problem, as normally it will be high enough to make recognition difficult, and careful adjustment of the tailplane dethermalising angle is well worthwhile.
In construction, the important thing to note is the proper selection of wood, and if you see a piece of wood in the shop with thumb nail marks in it, do not use, as Laurie has probably tested it and discarded it before you! Anyone who has built a few models before (preferably rubber type) will have no difficulty in producing a sound model.
It is essential at all stages of the construction to ensure that all the parts are built true without warps (apart from the slight washout on both wing tips). It is no good hoping that the covering will rectify wings and tail that are built twisted. Similarly, the washout at the wing tips must be built in..."
Tripstick, Aeromodeller, May 1962.
Direct submission to Outerzone.
Supplementary file notes
Article pages, thanks to RFJ.
Did we get something wrong with these details about this plan (especially the datafile)?
That happens sometimes. You can help us fix it.
Add a correction
Do you have a photo you'd like to submit for this page? Then email email@example.com
User commentsNo comments yet for this plan. Got something to say about this one?
Add a comment
* Credit field
The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.
This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.
© Outerzone, 2011-2019.
All content is free to download for personal use.
For non-personal use and/or publication: plans, photos, excerpts, links etc may be used, provided that full and clear credit is given to Outerzone with appropriate and specific direction to the original content i.e. a direct hyperlink back to the Outerzone source page.
Unauthorized use and/or duplication of this material without express and written permission from this site's owner is strictly prohibited. If we discover that content is being stolen, we will consider filing a formal DMCA notice.