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Christchurch and District Model Flying Club |
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Who is flying what at longham - part 1
Adrian Sharpe (Phoenix Club) flies a Robbe Seabee and a Multiplex Fun-Cub. The Seabee is a close-scale model of about 43” span and there are two in the Club. I think it’s fair to say that they require a fair bit of skill on the sticks to get them to fly well. The Fun-Cub will be familiar to anyone who has flown at SF, it’s big all-terrain wheels being a bit of a give-away. I was very impressed with its performance on the water with the £24 floats, although Adrian didn’t use the flaps on the day I saw it.
He says: “The shopping list for the Fun Cub was: Fun Cub Channel 4 Sale £79 Float Set Channel 4 Sale £24 (?) Glue £4.50 Motor Giant Cod BL2815 920kV £13.15 (!!!!!!) Speed Controller Giant Cod Hobby Wing Pentium 40amp £21 approx Servos 2 off Channel 4 New Power XL 16 HM (17gram, 30mm between bearers) 1 off Channel 4 Etronix ET0005 9gram 3 off Channel 4 High Tech HS-55 9gram The ailerons use 2 of the High Tech servos and the flaps use one High Tech and the one Etronix. (- because the extronix and high tech are opposite hand and that suits the cavities in the wing) PS Fun Cub, my Fun Cub has a three blade 10 x 4 prop, over the flights completed so far the average current drain from 3S batteries is 8 amps, I reckon the max current is circa 20 amps. The aircraft lifts off the water at a little over half throttle! and I reduce the throttle to about 1/3rd for flying.” |
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Bob Corfield, a Southampton flier, has a Multiplex Mentor, a Puddlemaster and a Grumman Albatros look-alike (the bent wing in this picture was due to an arguement with the reeds, I think).
The Mentor hardware is as follows: Himax 3528-1000 brushless motor £40 to£50 Turnigy Plush 60amp speedcontroller $35 from hobbycity Battery is a Rhino 3s 3700 25c from Hobbycity $25 Spectrum rx 7010 £60 or 6210 £50 APC 11-5.5 prop £4-50 Hitec servos 82mg £14 or 81 at £10 for ailerons and JRnes591 servos at £11 for rudder and elevator. You could use up to 4900 3s lipo for longer flights. As the 3s 3700 lipo needs to be right up the front to get the CG in the proper position when the floats are fitted. The floats by the way are £35 The turnigy plush speed controllers are very reliable you don’t need a ubec. Some people use a bigger motors when towing gliders with the Mentor I am sure John and I will meet you again soon when the weather gets a little warmer. The Fun-Cub and the Mentor are typical of the ready-to-fly solution to Longham. They are both proven designs with a good speed range and an impressive ability to take off from water. They are expensive (it will cost at least £200 to get the Fun-Cub into the air, and 50% more for the Mentor) but they are made from Elapor which should ensure they have a long life. And you can just unbolt the floats and put them back on wheels for Strawberry Field. The only real weakness is in their lack of a water rudder, an essential extra for this sort of flying. There are a couple of simple solutions on the next page. More “who flies what” next time |
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