Firefly (oz4393)

 

Firefly (oz4393) by EJ Webster from Keil Kraft 1959 - plan thumbnail

About this Plan

Firefly. Control line model, for motors under 1cc.

Quote: "Control line stunt model for 049 glow motors and under 1 cc diesels. Dioe-cut parts for quick building. 20 inch wingspan. 15/9."

Direct submission to Outerzone.

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Firefly (oz4393) by EJ Webster from Keil Kraft 1959 - model pic

Datafile:
  • (oz4393)
    Firefly
    by EJ Webster
    from Keil Kraft
    1959 
    20in span
    IC C/L
    formers unchecked
  • Submitted: 17/05/2013
    Filesize: 285KB
    Format: • PDFbitmap
    Credit*: vintage1

Firefly (oz4393) by EJ Webster from Keil Kraft 1959 - pic 003.jpg
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Firefly (oz4393) by EJ Webster from Keil Kraft 1959 - pic 004.jpg
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Firefly (oz4393) by EJ Webster from Keil Kraft 1959 - pic 005.jpg
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Firefly (oz4393) by EJ Webster from Keil Kraft 1959 - pic 006.jpg
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Firefly (oz4393) by EJ Webster from Keil Kraft 1959 - pic 007.jpg
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Firefly (oz4393) by EJ Webster from Keil Kraft 1959 - pic 008.jpg
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User comments

OK. This is the model that started me off in the hobby and nearly turned me off it. Much birthday money spent on kit and a DC Bantam. A total dog - crashed, repaired, repaired. I never managed to fly the alleged trainer, until taught to fly a somewhat ropey Dominator combat wing with PAW 249 by best friend's brother. I still have the Bantam motor. Never used following the plane turning in when trying a wing over. I think we burned the model in the field with liberal squirt of glow fuel. Probably nearly 45 years ago!
AndyD - 31/12/2014
This was my first control line model which I *did* learn to fly on 50 years ago! It was powered by a DC Super Merlin wow! It would do wing overs. To anyone building this model I would say only fly it in calm conditions or you will be continually back tracking to keep line tension. I broke the fuselage a few times and I think I cured that problem by making a new fuselage from 1/8th ply. Those curvy wing tips are the very devil to cover – it might be better to infill with some bits of soft block.
BryanLea - 14/07/2015
Hi. I have attached photos of a pair of KK Fireflies which I built recently [more pics 003-007]. I had built two more from the same plans several years ago, using Norvel 1/2A engines for power. I found that they were way overpowered. For these two shown in the photos, I modified the plan to incorporate a radial mount for Cox Killer Bee 049 engines. These have proved to be ideal, with more than ample power on 35 feet lines. The wings are covered in 1.7 mil Doculam and heat shrunk before applying Japanese tissue and dope. I love the classic tissue look but find it too fragile. The composite provides for a significantly more robust covering with little weight penalty. The KK Firefly is an excellent little stunter. A classic design from Keil Kraft. Thanks very much for preserving and providing the plans for our use.
TonyLeong_Singapore - 24/11/2017
Built this as my first CL (big mistake!) it was heavy and (under powered) by a DC merlin nearly put me off C/L for good, spent hours trying to get the diesel to start............... But after some help from a club c/l flier I won!
Rich - 28/10/2020
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Scaling

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