Scorpio Java 150. See how Jay got on building and flying the Java 150. See Reviews for full story and read trial by fire of a new initiate to BumpyGreen - Jay 'Wedge' Williams.
What's New?

This month I am looking at some high quality control horns from A.C. Engineering.




Carbon Fibre seems to feature in everything these days, from exotic sports cars to the latest fashion footwear.

Aeromodellers have also seen the advantages of this modern marvel with parts available from push rods & wing joiners to aerobatic blade & fin sets for helicopters.

A.C. Engineering make these superb control horns which are very rigid and very light.

The dual version in picture 3 is for gas turbine control surface applications and anywhere very high strength is required.

In the last picture you can clearly see the weave pattern of the carbon threads. Choddy has already volunteered to test them on his next large scale project

Information from the manufacturer.

The horns are cut from aircraft grade heat/pressure cured carbon fibre.

The manufacturer of the raw material says you could hang about a ton off them without a problem (adequate)

The horns weigh just short of 1.5g each

They are designed to be used on 2M F3A models as well as jets and large scale models or indeed any model that needs a little extra strength.

Price is £10.25 per set (two horns) and they are available currently from Freestyle Models

Telephone Freestyle Models
on 07713 577050
What's old?

What was going on in November 1975 in the modelling world. Take a look back at some snippets from a magazine of the era.


The editorial this month congratulates it's readership for helping achieve almost 10 years of publication and notes the welcome and encouragement of continued existence even when the price had to be put up. Again not much response to Ray Favre's trying to establish a non competition body to govern aeromodelling & model flight. Editor quoted as saying ''most non contest modellers do not care very much about having any sort of organisation ~ or there is a desperate shortage of postcards in the British Isles.


Cover models Chiltern & Medip were the latest glider combos available from Aviette-Ripmax. The Chiltern, (top left of picture) 66" span intermediate trainer with a thin undercambered dihedral wing. Using rudder & elevator controls. The Mendip, (bottom right) 60" span fully aerobatic 3 channel glider & featured a semi symmetrical wing.
Now what famous dual version glider do these remind you of ?


Norman Butcher reports from the 1975 World Model Aerobatics Championships, held at Bern in Switzerland. Wolfgang Matt of Liechtenstein took the individual title with a score of 14830. The team trophy went to the USA. Great Britain only managed a disappointing 11th team place with no individuals scoring in the top 10.


The Philip Lawson & John Palmer Concorde G-BSST. At 9ft in length and 4ft span this impressive model project took around 2 1/2 years to reach ready to fly status. Driven by 2 inverted OS 40 as pushers and using elevon & rudder controls. All was well until final fast taxi tests at the local airfield. A graceful 20 yard hop seemed to indicate it was all going to plan and a first flight was in progress. As the Concorde began to reach take off speed the nose leg hit a ridge and bounced the front right up, an untimely gust of wind was there to whisk the model into a vertical climb to 50ft at which point gravity remembered the job it was supposed to be doing and brought the model crashing to the ground.


Video! DVD! Broadband Streaming Media! ~ If you'd said such things when this magazine was printed you'd have either been locked away as mad or stoned for heresy. Indeed these classic planes, featuring a Bristol F2B & a 1916 Sopwith Pup were available for the latest Super 8mm Home Movie Cine Projectors. Other new arrivals of the time were the Graupner Mosquito all wood glider kit and from Ripmax the very latest Bell 47G helicopter kits.


The namesake this month takes a look at the latest offering from Webra. The Speed 61R uses an unusual rear rotary valve induction system. Although one of the heaviest engines in it's class it did return 1.6-bhp which at the time was the highest reading for a 10cc engine. The writer was not so impressed with the open front silencer and noted that the manufacturer was releasing a closed expansion type to cut noise.


When was the last time your local slope looked this crowded. I've seen some crowded events at Ivinghoe but nothing to compare to this picture.

What's next?
Cambria Pioneer. Bought recently along with a bunch of other models & kits dating back 20+ years. The Pioneer is a 1912 open frame monoplane design similar to the Bleriot type monoplanes of the era. Mad-dog Kevin volunteered to reassemble to bits and finish the control installation as well as fit the engine, undercarriage, radio gear & paint all the parts that needed doing. I finish the grand job he did on it by learning the art of 'tissue & dope' to complete this months project and will give a step by step story as I learn the art of vintage style covering.

That's it for another month,
See you in December.


Article by Chinman from Bumpy Green Model Aerodrome
14th November 2001