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My electric models, chronological order
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Model (Manufacturer)
Motor, acc
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Description
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Rating
(0-5)
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Elektro Aerojet (Galaxy Models) AP36L and 7 cells, 8x4 prop
Spw 1200 mm
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Aerobatic, no rudder. Take off, good climb and then... Probably interference to receiver from motor control, I used an AM radio on 27 MHz. Nothing left of the model, but the equipment could be used again. (But I bought a new FM radio!)
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?
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Elektro Junior (Graupner)
AP36L or REV 300T, 7 or 8 cells, 8x4,5 prop
Spw 2010 mm / 1450 gr
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2 m electric glider that is always a success. I used it for 10 years, then it was sold. Most of the flying took place at "Årstafältet" (Stockholm area) where a flight without catching a thermal was unusual. Too bad we are no longer allowed to fly there ("recreation area").
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4
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Volta (from plan)
Different motors, 7 or 8 cells and 7x6/8x4 prop
Spw 1000/900 mm / 1200 gr
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Aerobatic, no rudder. A good flyer, very stable and easy to fly, almost boring. I shortened the wings a decimeter to get a quicker model, but it is still very stable. It has been my "testbench" for different motors. Mostly 600 size and 7 cells. I have tried 8 1250 SCRL and got good performance but the flying time is too short. I will test 8 NiMH 2000, and we will see...
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4
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Crazy (Topaz)
Kyosho REV 300T and 8 cells and 9x5 prop
Spw 1350 mm / 1250 gr
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A genuine HOT-LINER! Fast and totally unreliable. Normal case: stall during last turn before landing. New fuselage and CG moved better flying qualities. Nevertheless I ended up in an uncontrollable upside down position, stalled once again, crashed!
Crash investigation: "Stall caused by quick motor power reduction during steep climb".
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2
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Pilatus Turbo Porter (Jamara)
Magnetic Mayhem + gear 1:2,5 and 8 cells
1450 mm / 1650 gr
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A totally useless all balsa ARF. Deficient construction (and bad craftsmanship), twisted fuselage, twisted wings, bad glue joints,....etc. The manual said "...do not exceed the maximum flying weight of 1500 grams!" I used light weight equipment, but the total weight was over 1600 grams. Wing area (scale?) was too small. In spite of the fear of a catastrophe, I made the test flight.
"Straight off the board"...hardly - the model turned over on its back just after take off and crashed. No meaning of a repair, it was a bad project from the start.
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0
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Hellcat Slim
AP36L or Magnetic Mayhem + gear 1:2,5 and 8 cells, 12x8 prop
Spw 1000 mm / 1500 gr
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Profile Fun Flyer. A good all balsa kit. Thick wing that could take all the equipment. In spite of the short and wide wing it is stable and easy to fly. At least 5-6 minutes of aerobatic flying. Can do a standing figure of 8 if you concentrate. Easy to ROG, easy to land. A real top class model!
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5
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Swing (Czech ARF)
AP36L + gear 1:2,8, 8 cells and 12,5x10 prop
Spw 1760 mm / 1350 gr
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A high quality ARF from the Czech Republic. Transparent covering gives the opportunity to admire the excellent construction. Carbon fiber reinforced wingspar. More of an all-round than thermal glider, the ad says it is suitable for F5B/7 cells. No ailerons, but it is nevertheless fully controllable. Centrally positioned air brake. V-stab. A good flyer, an enormous climb (using ferrite + gear!), goes straight up if you have a little head wind. If you loose a thermal, you can speed ahead and fly to the next bubble, without any noticeable loss of height. Aerobatic as far as it is possible without ailerons. Another top class model!
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5
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SkyBug (GMD)
Speed 400 6V + gear 1:2,33 and 7 cells, 8x6 prop
Spw 1000 mm / 500 gr
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A parkflyer "Semi-kit". Foam wings and stab/fin, the rest is built-up from balsa. An easy to build project that produces a parkflyer with excellent qualities.
See the full test report (in english).
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5+
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SkyHawk (GMD) Speed 400 6V direct and 7 cells, Guenther prop Spw 1500 mm / 575 gr
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A parkflyer soarer. Same type of kit as SkyBug. Good, stable motor assisted soarer.
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4
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Tiger Shark (from plan)
Speed 400 6V + gear 1:1,85 and 8 cells 500AR
Spw 900 mm / 485 gr
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RCM E Aug 2001. Peter Rake design, low wing with ailerons, very aerobatic, good performance for 6-7 minutes.
Modified (new fuselage in front of wing, to be able to fit a gear) .
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4
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Ray (Hacker)
Speed 400 6V and 7 cells
Spw 1480 mm / 540 gr
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Czech ARF hand launch glider.
Modified nose to make an electric glider.
OK with a Speed 400 direct drive on 8 cells 500AR, better with a re-timed 400, almost a rocket with a MEGA 16/15/5....
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5
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Kastor (Art Hobby)
MEGA 16/15/5 brushless + gear 3.3/1 on 10 cells 500AR
Spw 1650 mm 800 gr
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Polish made electric ARF glider of high quality.
Good climb on a big (14x8) prop.
All round model, thermals, high speed, good handling in high winds
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5
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Spitfire (World Models)
MM and belt drive gear on up to 10 cells
Spw 1220 mm 1500 gr
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Not exactly scale.... but a good quality ARF model that flies very well
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4
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Stearman PT-17 (Kyosho)
LRK outrunner on 10 cells
Spw 1275 mm 2900 gr
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Very nice looking ARF of the best quality.
Flies extremely well
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5
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(Mountain Models)
GWS 75 mm fan and 400 brushed motor on 3 LiPos. Ultrafly brushless motor substituted.
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Park Flyer EDF. A bit odd in looks, but a very good flyer when the motor was run in.
The brushless alternative have slightly better performance but at lower amp consumption and weight
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4
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Big Swift (Czech ARF)
Big brother to Swing (see above) Aveox brushless on 7 cells
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Same high quality as Swing, larger span (2 m) and ailerons. A bit on the hevy side but flies well.
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4
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Mini Flash (Mountain Models)
High quality laser cut kit. Small brushless, geared on 3 LiPos
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Light construction gives good flying. 3D capable (if the pilot is...).
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5
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