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cells will have to be investigated, which would probably mean considerable outlay. Testing can be an expensive exercise. I really enjoyed finding out about Electric Ducted Fans through practical experience and have to admit that I am now hooked. (The era of the fifties and sixties jet prototypes are giving me ideas). I shall never forget that first successful flight as she flew majestically by, with that delightful jet whistle of a bygone era. Great!
Data
Model: Henschel Hs132, (semi-scale), Traplet plan, MW2575. Construction: Balsa, built-up Finish: Dope/Lightweight Tissue/Brushed Humbrol Enamel Flying Weight: 3 lb. 21/2 oz. (Fus: 14oz ; Battery - 17 1/2 oz Wing + Motor/ Fan: 19oz.) Fan: Morley Jet Elec Motor: Kyosho Mega, 2 x 18W Cells: 8 x Sanyo 1800SC RServos: 2 x Hitec H580 Micro Speed Controller: Multiplex 40 Amp BEG Receiver: Futaba FPR138DF
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(Who has just got his MaxCim brushless - now let's really rock and roll quietly!)
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Another Graupner Ju-52 Dr. Walter I. Thyng email: docwt@worldpath.net
I finally got to test fly one of my winter projects: a Graupner JU 52 semi-scale kit. Wing span is 59". Mine came in 4 oz under the claimed flying weight which I think was 56oz, so mine weighed 52 oz. Motors were from the kit provided by Graupner: 7.2v S 400s and 6/3 scale props. Battery was 7/1700. ESC was from New Creations R/C and included BEC. Servos were 4 TS 11s. I added flaps because almost all the parts were there in spite of the plans saying they weren't. This bird flew right off the board -- no a single click of adjustment! Amazing as it was difficult to build due to poor wood, extremely brief instructions and hard to read plans. Covering is aluminum Monokote. Decals were stock as provided. Take-offs were authoritative, but scale-like. This is no rocket ship. All recommended setting were dead on. Stalls were straight ahead and gentle. Just add power and fly out. Loops required a slight dive. Rolls require a strong heart (will try increasing throw), but they aren't scale anyway. Spins required both rudder and ailerons (as did rolls) and stopped instantly when controls were neutralized. They looked like the JU 52 had just met an Allied fighter and was on the way down! Landings were rock solid with or without flaps, but the flaps made a dramatic difference in angle of descent and approach speed. They really work! This plane requires a hard surface runway. I can't imagine it getting up out of any grass longer than a golf green. They say you can hand launch it. You try. I wouldn't! The sound of those three motor on a low, close and slow fly-by is awesome. This will make a nice "cool my jets" bird for after I've flown the Corsair or my "Electra-Hog" (just a hint about my next test once I get the pics taken). Because of the negatives mentioned above the best I can give this kit is ***. Keep the amps flowing, Walt Thyng
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Amptique Rating Dereck Woodward email:woodwadd@erols.com
My latest - a Three Star rating *** for Spirit of Yesteryear's "Amptique". Built to teach Sue, my wife, to fly. Lightweight and simple all wood model is easy to build but watch for wing warps in that light structure. No problems getting the RC gear in, I moved the rudder and elevator servos aft of the wing to free up room for 7 x 1700 cells - plan shows 800's. A can motor and Leisure gearbox with 3.6:1 ratio and an 11 x 7 Master Airscrew nylon prop provide the sniff of power it needs to fly for 15 to 20 minutes flights on power. Easily controlled, satisfying to fly, recovers well from odd attitudes. If the plan was updated to show modern standards of equipment I'd give it four stars - there's more than a novice should have to figure out as it is. Very good value for money. Regards, Dereck
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Peeper Rating Steve Gurley, Mesa Electric Silent Aviators email: kj7wk@ix.netcom.com
Airplane: Northeast Sailplanes Peeper Rating: ****
Comments: The airplane comes with a nice glass fuselage, along with wings and empennage which are nicely finished continued
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