Welcome to Chins Chins, my chance to chin-wag.
Each month I will be looking at what's new in the modelling industry, some history from the same month a quarter of a century ago and current Bumpy Green projects I am involved in.
| Last Month... |
What a month April turned out to be, Bumpy Green was a hive of activity getting ready for the Sandown 2003 Model Symposium. Flyers were drawn up and printed, models prepared for display and even a couple of new planes built to be filmed for a promotional video.
Positive and Negative.
I am pleased to see the comments section added to a majority of the articles has encouraged people to have a say. Most has been positive encouragement which is nice, also there have been some critical comments which also work to enable us to see where the site or features therein may be lacking. Keep it up we want to hear what you have to say about the site.
The negative comments have been minimal but a couple have prompted me to write this little piece. First was a comment about Bumpy Green obviously not liking helicopters as there is so little about them. This is only due to the main contributors not actually owning or flying helicopters. We've had a couple of reviews, a beginners guide and even a submission on how to upgrade one popular model to a larger more powerful engine. This is what we need ~ more submissions, especially from areas we ourselves are not heavily involved in - Helicopters, Gliding and Freeflight. Bumpy Green is for anyone and everyone to contribute to, it's completely free and as our regular article contributors have found there are additional benefits from being part of the BG team.
Second was a comment regarding the movies we offer for FREE download being amateurish. Criticism is all well and good and can only make for better quality movies but we aren't Warner Brothers (yet). Yes some are poor quality, especially the early ones but as the video we produce is about 200 Megabytes per minute in it's native form, not many people would be able to download them so we have to use compression. Even then some are still very big and too long for some people to download due to dial up time limitations. We usually have CD's with us at the shows for people who can't download them to enjoy and will probably be making them available as part of our other new project. I guess the old saying is true you can't please all the people all of the time but I think we please most of them. Again your comments are taken on board and if enough people want something they usually get it.The message here is just this - Instead of firing a criticism and sitting back on your laurels for a job well done, put pen to paper (or fingers to keyboard as is more fitting) and fill in those gaps we have in our content. We don't get paid to write this web site, we do it for the enjoyment of seeing others benefit from it and to offer as much accurate information as possible on what we do cover. We need people who are involved in other aspects of our hobby to get involved and write for us.
On that note I would like to thank everyone who has contributed articles for inclusion, especially those who submit regularly, Keep it up.To the rest, why not give it a go and tell everyone about your aspect of the hobby, what your club is up to or an event you attended, write a review or even just a small pilots log. What ever you do - be part of the experience.
Email me webmaster@bumpygreen.co.uk
| What's New? |
www.westonuk.co.uk Weston UK Magnum
Wingspan 875 mm (34.4")
Length 1070 mm (42.1")
Weight 1.75 kg ( 3.8 lb)
Engine 40 - 46 2 stroke
Radio 4 channels 3 servos Newly arrived at Bumpy Green is the Weston UK Magnum. An almost ready to fly sports aeroplane capable of speeds in excess of 200mph. Not for the faint hearted. Full review coming soon. All lightweight wood construction, pre-covered and supplied with all hardware. Very straightforward build process. Intended for experienced modellers.
For the ultimate performance I've used the new West Eurotech .50 V1 hi-power motor and the specially developed Genesis tuned pipe producing 2.8 BHP @ 21,000 RPM.
www.ripmax.com Firebird Outlaw
Wingspan, 1016mm (40")
Weight, 450g
Build Level: Ready To Fly
Skill Level: Beginner
Reach for the sky with the exciting Firebird Outlaw. Even if you’ve never flown before, the Outlaw’s powerful twin engine motors will have you zooming through the sky like a pro on your very first flight. It’s super smooth ‘Digital’ Flight-Trak™ control system makes it easy to do all sorts of amazing tricks like spot landing, touch and goes and flying in formation with up to five other Firebird Outlaws. You can even do rolling take offs, just like a real plane!Features:
• Easy to fly
• Fly longer with 10 minute flight times
• Fly further - up to 1500 ft - over 1/4 mile
• Fly like a pro - Outlaw’s full proportional Digital Flight-Trak™ control system makes flying easy
• Supplied complete with radio, battery pack, AC240v input charger and PP3 transmitter battery.
www.centuryheli.com Hummingbird Electric
Length: 18.5"
Height: 6.5"
Main Rotor Diameter: 20.25"
Tail Rotor Diameter: 5.75"
Weight: 185g (w/o battery)The Hummingbird is the perfect electric helicopter for indoor flying and calm days at the park. Open the box, and be flying in under two hours. At just over 9 ounces, the Hummingbird will fly for 7-10 minutes on the 7 cell NiMH battery.
The Hummingbird is designed with the beginner in mind, the minimum required is a simple 4 channel radio with 2 micro servos, a micro receiver, control board, micro gyro, battery and charger.
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The rotor head is built from lightweight but strong molded parts that will withstand light aerobatics and hard landings. The main mechanics are designed for strength and compact placement of servos, receiver, gyro and motor & tail control unit. The tail rotor is driven directly from the tail motor that is supported on a hollow carbon tail boom.
Predator
Length: 54.5" - 55.7"
Height: 17.2" - 18.2"
Mainblades: 690mm - 720mm
Main Rotor Diameter: 60.6" - 62.9"
Tail Rotor Diameter: 10.5" - 11.2"
Engine: .60 - .90 2 stroke
Ball Bearings: 54 - 55A new range of high quality helicopters with various versions available. The Predator 60/70, SE, MAX 90 & even a gas turbine version planned. All feature machined aluminium parts, bearing support (up to 55 bearings used), carbon fibre blades and chassis components, adjustable cyclic response, adjustable spindle damping, stacked modular aluminium mainframe and high gloss gel-coated epoxy fibreglass canopies.
Do you have a new or existing product you would like to let everyone know about?
Drop me a line with some details and pictures and they can be included with the next months issue.
chinman@bumpygreen.co.uk
| What's Old? |
What was going on in May 1977 in the modelling world. Take a look back at some snippets from a magazine of the era.
Increasing numbers of events being listed was noted this month in '77 with seventy in the May issue RM compared to ten listed in 1967. An ever growing number of modellers was greeted with enthusiasm but also highlighted to premium at which flying sites, and boating ponds and car racing tracks, were being regarded. Keeping a site for modelling interests was becoming increasingly difficult with new housing and industrial developments plus the growing numbers using the sites. One note which brought the editor to remark that "he had heard everything now" was a complaint regarding the St Albans all electric fly-in. Not about the noise of the aircraft but the noise of the spectators attending the event. There seems to be no pleasing some people.
Other news was the results from the World Championship Thermal Soaring event in South Africa in which pilots form 12 countries competed. The USA team to first place in both the team and individual standings. Great Britain placed second in the team event whilst Sean Bannister took individual 3rd.
Cover picture was a close up of the Graupner Super Heli Baby collective pitch rotor head to outline the advantages over fixed pitch rotor head setups.
Latest new kit arrival was the Ripmax Moonshiner from Aviette Kits. A 48" span fully aerobatic bi-plane using the new method of foam cored obechi veneered wing panels. Designed for .40 size engines, with recommendations of the higher powered types to be used and full house radio control. Received well by reviewer Alan Burton with only a few minor cosmetic touch ups needed to the completed airframe and a comment on the fact the supplied wood could have been better.
The model built and flew very well and despite initial impressions of the kit it surpassed the manufacturers description as aerobatic, being capable of all manoeuvres and able to do them very well. Powered by a Webra 40 and running Futaba M radio gear the model weighed in at 5.5 lb. The first take off attempt was almost disaster as too much up elevator caused the model to rotate early and tip stall into a cartwheel. Fortunately only the prop was damaged in this initial setback and it was soon flying straight and true. So much so, Alan had trouble getting the transmitter back from fellow club members because they liked it so much.
Featured plan was the Dorado designed by Jo di Giorgio. A 56" span low wing aerobatic model with sleek lines requiring .30 - .40 size 2 stroke power and full house radio control. Building was straightforward with the model aimed at those with a little experience but should not have presented any undue problems even to a novice.
Powered by an HP 40 engine with the space to fit a 10oz fuel tank enabling long flight times the Dorado was indeed a sleek model to fly. With no tendency to stall for any reason the flights were stress free and all aerobatic manoeuvres were easily achieve. More movement was required for landing on a 'dead stick' with a tendency to spin very fast if speed was not maintained for landing.
Motor Miscellany with Peter Chin had a series of OPS engines from Italy on comparison from the original 1972 design through the series 74 to the latest series 76 version. The improved specifications included an 8mm choke perry carburetor, a milled, fully circular crank counterweight, improved shallow dish combustion chamber and improved cylinder porting.
Also on the bench was the latest OS Max 15 Series III engine. With improvements most noted in the silenced performance being some 20% higher than previous versions using the old silencer. This engine type featured in this very column some time ago as part of the 1970's hoard of treasure I acquired and was used in the cleaning up an old engine article and is still going strong.
Roy Yates continued his excellent coverage of the scale scene with news of the new International Tournament Of Champions being organised in the USA. With a top prize of $15,000 and as part of the invitation only entry with free food, accommodation and $500 allocated to each entrant to help with shipping costs to America. With the inclusion of museum scale entries and scale aerobatics as well as the usual pattern type contests it was hoped to attract competitors from around the world.
New plans from Dennis Bryant included the Henschel HA 126A-1 which he was seen flying at the North London Scale Fly-In and from Brian Taylor the Vultee Valiant BT-13 based on the model he placed 2nd with in the Swedish held 1976 World Championships.
Arthur Seales Bleriot takes to the air during the 1976 Nationals. A fine example of the modelling excellence to be seen at the national level.
Brian Downham seen here launching his Northrop Primary reported it behaved in a very scale like manner. Floating effortlessly in a minimal breeze but with very gentle glide characteristics in less.
A good launch is all important and Mike Trew handled the controls while a fellow club member launched his latest creation - A 143" span Slingsby Skylark 3B. Based on a 1957 design the model employed air brakes, adjustable aileron and rudder trim tabs as well as addition of ballast to stabilise the 7lb model. Stall turns were not favoured by the 12ft span model but it could soar very well in anything from 8mph winds upwards.
Final shot is by Colin McGeachy taken at the then recent inter-club thermal soaring meeting between Basingstoke and Reading. Junior member Adrian Lee of Reading flying a Mistro took first place at the event.
Recognise yourself in any of these pictures, we'd love to hear from you at Bumpy Green. chinman@bumpygreen.co.uk
| What's Next? |
With Sandown just around the corner (time wise rather than location) another bustle of activity has beset the Bumpy Green HQ. With more new projects on the horizon the top of the list will be the Multiplex MicroJet. A smaller, single 400 motor version of the immensely popular TwinJet. This will lead nicely onto another electric foam delta project I have received and will hopefully have flying in the not too distant future.
That's it for another month,
See you in June
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Article by John Kent from Bumpy Green Model Aerodrome
May 2003
| Comments left by others... |
Comment by Ronan on 20050427144840. Rating 5
Hi would anyone have detailed instruction fo how to assemble the predator 60/70 model. Thanks.
| Leave your comment... |