Ady Hayward Posted October 30, 2024 Share Posted October 30, 2024 I finally got mine finished to flight ready. Still have a few detail bits to do. 12.5 kg without fuel. Power is via a Laser200 inline twin 4t glow engine. 10 Quote Link to comment Share on other sites More sharing options...
Ady Hayward Posted March 21 Share Posted March 21 Yay She flies!! I got the maiden flown at last (This Wednesday) although it was a bit tense. I had a cylinder stop firing as she lifted off but managed a slow climb to circuit height before making a safe landing 7 Quote Link to comment Share on other sites More sharing options...
Nigel Dell Posted March 24 Share Posted March 24 That’s nice Ady, is it the one of three Gypsy versions of the i200? How was the power in that model? I expect it would be sufficient. Quote Link to comment Share on other sites More sharing options...
Ady Hayward Posted April 14 Share Posted April 14 Hi Nigel, The engine is a "Gipsy" version of the Laser 200. The climb was very slow on just the one cylinder but she was stable and controllable and didn't stall. On both cylinders the engine pulled 7100RPM, and on the one 3600 RPM 1 Quote Link to comment Share on other sites More sharing options...
Simon Chaddock Posted April 14 Share Posted April 14 (edited) I note the "Gipsy" Laser 200 goes the right way round, clockwise when viewed from the front, and thus matches the scale offset cowling air intake. . A rare combination or is that just a "show" prop? Edited April 14 by Simon Chaddock Quote Link to comment Share on other sites More sharing options...
Nigel Dell Posted April 14 Share Posted April 14 7 hours ago, Ady Hayward said: Hi Nigel, The engine is a "Gipsy" version of the Laser 200. The climb was very slow on just the one cylinder but she was stable and controllable and didn't stall. On both cylinders the engine pulled 7100RPM, and on the one 3600 RPM Hi Ady Mine is the Gypsy as well going in a Miles Hobby Hawk when I get my mojo back, we are in a club of 3 I understand. 5 hours ago, Simon Chaddock said: I note the "Gipsy" Laser 200 goes the right way round, clockwise when viewed from the front, and thus matches the scale offset cowling air intake. . A rare combination or is that just a "show" prop? Simon that is correct, the ‘Gypsy’ version so named as it turned in the same direction as the full size, reverse of normal model engines. I ordered the Fiala props from Bernie at Jeti UK you can order their props in reverse rotation so have a selection to try. 2 Quote Link to comment Share on other sites More sharing options...
Simon Chaddock Posted April 15 Share Posted April 15 Nigel Some 25 years ago I hand swung a Gipsy Major in a Tiger Moth many times and that 78" prop looks enormous when you are standing close in front of it. At least the starting "impulse" magneto has slightly delayed timing to reduce the likely hood of a back fire ripping the prop out of your hands. Technique is everything. . 1 Quote Link to comment Share on other sites More sharing options...
Nigel Dell Posted April 15 Share Posted April 15 2 hours ago, Simon Chaddock said: Nigel Some 25 years ago I hand swung a Gipsy Major in a Tiger Moth many times and that 78" prop looks enormous when you are standing close in front of it. At least the starting "impulse" magneto has slightly delayed timing to reduce the likely hood of a back fire ripping the prop out of your hands. Technique is everything. . Oh yes, I was taught that many years ago, when first did it I felt it was like hand feeding a tiger! But once I got into the swing (pun intended) of it I was ok. As you say technique is everything. Quote Link to comment Share on other sites More sharing options...
Ady Hayward Posted April 16 Share Posted April 16 Yes. Prop swinging isn't for the faint hearted. I did it on both tiger moth and Chippy. Great days. I am using Xoar and Falcon pusher props. Thus far no issues though I do like Xoar props. Quote Link to comment Share on other sites More sharing options...
David P Williams Posted April 16 Share Posted April 16 Hand swung many Austers, Tiger Moths, Stampes and Chipmunks. Scariest was the 450hp Pratt & Whitney engined Stearman with an 8ft plus prop. Quote Link to comment Share on other sites More sharing options...
Mark Hewett Posted April 17 Share Posted April 17 On 14/04/2025 at 15:59, Ady Hayward said: Hi Nigel, The engine is a "Gipsy" version of the Laser 200. The climb was very slow on just the one cylinder but she was stable and controllable and didn't stall. On both cylinders the engine pulled 7100RPM, and on the one 3600 RPM Hi Ady, Did you determine the cause of the dropped cylinder? I can only imagine how marginal the climb was! Quote Link to comment Share on other sites More sharing options...
Mark Hewett Posted April 17 Share Posted April 17 15 hours ago, David P Williams said: Hand swung many Austers, Tiger Moths, Stampes and Chipmunks. Scariest was the 450hp Pratt & Whitney engined Stearman with an 8ft plus prop. I found the Tiger Moth okay to hand swing - with the aeroplane in the tail dragger attitude, and 'British' rotation direction, you pull through and naturally turn away. A J3 Cub I found OK, despite the opposite rotation, and a Rotax powered AX3 microlight. Tricycle gear Cessnas and Pipers with American engines- ugh. I found the height of the prop, coupled with the direction of rotation just 'wrong' - you naturally lean towards the prop arc. They also have metal props with sharp trailing edges - you have to curl your fingers round the blade to have enough grip - I hate the thought of what might happen to your hand if the engine does kick back. 'It won't kick back as long as you start on the impulse mag only' they say. Yeah, right. I've had enough engines kick back during normal electric start, which is on the impulse mag only, not to trust that. I'd rather have a cup of tea and wait for the battery cart. 1 Quote Link to comment Share on other sites More sharing options...
Ady Hayward Posted Saturday at 12:17 Share Posted Saturday at 12:17 Hi Mark, It seems to be tuning related. The idle mixture screw has to be out by 7 turns on the front, and 6 on the rear cylinder. I simply had it leaned out too far. The main needles are out by 2-2 1/2 turns 1 Quote Link to comment Share on other sites More sharing options...
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