05-Sep-10 - 06:32 PM

Recommended Sailplanes - F3B

Written by Hayden Daley - 14 September, 2007.
The following models provide exceptional performance at recent competitions and come recommended as good flying high performance competition models.

F3B Crossfire 2

The new F3B Crossfire-2 has a wing span of 2970 mm, a wing area of 58.22dm2, an Aspect Ratio of 15.15 and a V-Tail Area of 5.58dm2 and the fuselage length of 1515mm In regards to the design our experience came from our previous designs such as TOOL (Stratair) and TARGET (airsport products), a new feature on Aer-O-Tec gliders is a slip-off nose cone and proven details such as 2-piece wing and v-tail or carbon joiner and ballast-system were still evident on this new high performance F3B-competition glider. F3B versions come with complete hardware package ( small parts, ballast, wing bags...) and RDS - preperation . Wings are double carbon up to aileron servo box and single carbon for wing tips. Fuselage comes with ready installed v-tail linkage and tow-hook with 2.4 ready nose and carbon tail boom. Based on the experience from our successful Crossfire eVo and world Championship winning Crossfire F3B we proudly present the new CROSSFIRE-2.

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Available from:

Tracer F3B

The Tracer has a 2,4 GHz friendly fuselage and is made of carbon/Kevlar/epoxy and has a fully moulded 2 piece carbon composite wing and 2 part moulded detachable V-tail.
Linkage for V-tail comes already installed in the fuselage. Ballast tubes in the wing. Model is suitable for experienced modelers and competitors. The kit is supplied with a fully molded CF composite wing panels and a fully molded CF composite tail. RC functions, V-tail , Ailerons, Flaps. The Tracer is a high performance F3B Glider. The wing span is 3000 mm the Fuselage length is1500 mm and the wing area: 60 dm² . This model features the NAN F3B special airfoil and the flying weight is from 2200 g. This model is extremely well priced, another supurb model from David Pratley at Airstrike.

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Crossfire F3B

The Crossfire world championship winning sailplane is now available from Airstrike Australia. The wing span is 3100mm. It has a wing area of 59 ,5 8 dm² and the average the chord 19 2,2 mm. The aspect ratio is 16 ,13. V-tail area is 5,7 dm². Fuselage length is 14 60 mm and the model utilises the wing airfoil, M17 83. The elevator airfoil is a symmetrical 8% section. The Crossfire has proven F3B performance and from all accounts is an excellent sailplane. As mentioned previously this sailplane has already won an F3B world championship and if you wish to be one of the first people with a Crossfire contact David Pratley at Airstrike and get yourself on the order list.

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Ceres F3B

The Ceres F3B model is one of the new models with a low camber, narrow wingsection optimized for the F3B speed task. It has a wingspan of 3050 mm, wing area of 59,4dm2 and an aspect ratio of 15,66. This model uses the DP wing section for the V-Tail and wing, V-tail span is 586mm, a V-tail area of 5,64dm2 and the V-tail aspect ratio is 6,1. The sailplanes weight is 2100gm without ballast complete, maximum weight with ballast is 3600gm. The wings spar uses a Kevlar, honeycomb/ carbon sandwich. The fuselage tow hook is installed. This competition sailplane is 2.4 Ghz ready, and is provided with a 2.4 Ghz fuselage. Legendary US soaring champion Joe Wurts flew this model in the Friday F3B trials at Jerilderie 2008, and flew a low 15 second speed run. Watching this model fly with Joe Wurts at the controls proved this model to be world class and look forward to supurb F3B action with this new style F3B sailplane.

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Available from

Tool F3B

The Tool is a new F3B model distributed by the Airstrike company. Designed by European soaring champion Stefan Eder and Max Stiedle this F3b model promises excellent performance and is one of the new F3b models utilising low camber narrow wing sections for the F3B speed task, this model is optimised for the speed task. The models wingspan is 3060mm it has a wing area of 59,9 dm2 and flying weight without ballast is 2100gm. The model utilises h,s,qr,and wk wingsections and features the following controls aileron, flap, rudder and elevator and utiles a V-tail. Expect big things from this new style F3B model.

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Evolution F3B

The Evolution is a new F3b model brought to Australia by Model Flight and distributed by Model Flight and the Airstrike company.The wing of the model has a slight V form. The surfaces are moved using a torsion control. Ballast is placed in the wings. The standard version is a wing sandwich made of carbon fibre, Rohacel and glass fibre. The spar of the wing is made of UMS carbon. This sailplane has a length 1490 mm, a wingspan of 3130mm and a wing a area of 59,58 dm2. The airfoil used is the M1580 and m1585, MO8. This is one of the new models with a low camber , narrow wing section optimised for the speed task in F3B competition. The weight of the Evolution is 2150g and the fuselage is made from carbon/glass construction. Look forward to supurb F3B performance from this model.

Available from:

Available from

Caracho 3000

The Caracho 3000 is all new model from Vektor Modelltechnik in Germany. This model has outstanding launch capabilities, has good turn of speed for the speed task and is also excellent thermal model. It has a wingspan of 3.04 meters a wing area of 61.3 dm2 and an aspect ratio of 15,1. The wingsection used is the FL 1-6 (8%-7%) mod. The tailplane section is the SD 8025. The models weight dry is 2250gm with ballast from 300-950 grams. The wing is a three piece wing using carbon-glass balsa sandwich in construction. When watching this model I noticed the exceptional strength during launch and this model has very good "easy" handling and seemed to have no bad habits. This is a high performance sailplane that was used by Gregg Voak in the recent F3B W/C. This model comes highly reccomended as an excellent F3B sailplane and could be used as heavy weather thermal competition model. You will not be dissapointed in the performance of the Caracho 3000.

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Espada RX

The Espada RX was definitely the best performing Jaro Muller model with wingspan of 3.242 meters, the wingsection was the HN-785JM a Norbert Hayes wingsection and a wing area of 62.7 dm2. The Espada has a dry weight without ballast of 2050g. During the rounds that I watched this model had a very broad speed range, launched exceptionally well and definitely stood out as a fine performing thermal competition sailplane. This model is exceptionally strong and stiff, a Victorian competitor launched this model higher than I had ever seen previously in winds of around 15 knots. There has been a rush in Victoria to change over to the Espada with many models on back order, both this version and the larger 3.7 meter models for light air, with many competition models being sold to sponsor this change.

Espada

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Europhia 2

Another model that performed exceptionally well was the Europhia 2. This model was designed by Martin Weberschock a long time inovator in F3B model design and I believe this model would make an exceptional heavy weather thermal model, and for F3B, I believe this model would excel in the speed task when fully ballasted. The model has span of 3.188 meters, the wingsection satrts at the root with Estrella section the MW3 and transition's to the new MW4 section. The wing area is 52.4 dm2, and the models dry weight without ballast is 2400g. This models weight is up slightly compared to other models but the design intention for this model is for f3b and having to use the one model in all events with varying wing speed, more carbon has gone into the wings on this model. This model launched well, was very stiff and strong and covered ground very well when hunting thermals. The model uses a cross tail and looked to be a fine competion model. I believe this model would perform best in thermal comps in winds over fifteen knots as a heavy weather model, and would go well with a 3.7 meter Espada or the Shadow for light weather. The Europhia 2 is also very well priced when compared to the cheaper models from less known suppliers.

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Estrella

Finally the Fischer Estrella is available in Australia, these models have been notoriously hard to purchase and currently there is 18 month waiting list, however the Estrella is difficult to beat as an F3B model. It is a very well optimised design that has stood the test of time, these models have been, and still are very popular because of the fine performance that they offer; explaining the long waiting time. When you order you will be given a fairly accurate time of delivery and will not be dissapointed when they arrive, these models are an awesome all rounder and if you want a design that performs well in thermal comps and F3B you cant go wrong with the Estrella. There is alot of information on the net about how to set these model up and there is very positive reviews from those that fly this model in competition. Fischer also distribute really good winch line, the 1.1 and 1.2 ml lines are supurb with good stretch and excellent reliability, these lines are really up there with the best for competition line. If you are intersted in any of these model's or products they can be found at www.airstrike.com.au.

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