aidan mcatamney
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Everything posted by aidan mcatamney
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I'm afraid Jon you didn't understand me . You have your opinion and I have mine. So I will try again and maybe get through to you this time. Without any lead being added to either the Kyosho Calmato or to the Hangar 9 P51, both these planes are severely TAIL HEAVY, and I mean severely TAIL HEAVY. At 95 mm back from the leading edge you can go either way past that measurement, but this makes no difference at all, still severely TAIL HEAVY. The P51 suffers from a des8gn flaw the sane as the Calmato Sports 40. Go look up on the Forumns in America about the Kyosho Calmato Sports 40 and you will read from the owners themselves about the severity of tail heaviness. The Mustang has the same problem. When I first flew it in 2011, I was very very fortunate to get that P51 down in one piece on its maiden flight. I decided to fly it like you advised without any nose weight and it was a disaster waiting to happen. So lead had to be added to the cowl and that balanced the plane perfectly and I never had any trouble since that. I appreciate your views Jon and everyone has their own opinion, but on this matter I am right in what I say even I say it myself, no disrespect to you. I'm flying almost 40 years Jon and I know a bit about model flying. In the meantime can we let this rest and I wish you all the best. Kind regards Aidan.
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Hi J9n and thanks for your reply. The cg on the Hangar 9 P51 has to be measured back 95mm from the leading edge. As I've said the plane is very tail heavy and requires the right amount of lead weight inside the cowl , otherwise I would be bringing it home in bits. Always remember the wise old saying , a nose heavy plane doesn't fly well but a tail heavy plane only flys once. Other owners of the P51 have reported the same problem. Lots of weight needed in the nose to balance. In fact I have two Kyosho Calmato Sports 40 planes and they have the same problem as the P51, extremely tail heavy and needs a ton of lead in the nose to balance the plane and this is universal. I have the same engine in both the P51 and my Calmato Sports, its an OS 55AX. Just to show you how much weight is required to balance these planes , I've taken a photo of the Calmato as I'm not going to dismantle the cowl on the P51. But it takes the same amount of weight for all three planes to get the proper cg otherwise they would be a handful to fly safely.
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That was good to read Frank, thank you for sending that. This Hangar 9 P51 of mine was bought 13 years ago and has given me immense pleasure over the years. I never had any trouble with noseovers and the fixed landing gear held up well until recently when I noticed that that it was starting to noseover upon landing and the reason being that the steel wire had virtually gone straight. So I took both landing gear wires off , removed the two wheels and took it to the local engineering works where I ask them kindly to put a bend on each wire strut. Yes, I think I may have ask them to bend it a bit more than required but it's not tye end of the world and when I try out the ground handling at the flying field and its not to my satisfaction, then its just a case of taking it back out and bending it back a bit more. I'm excited to see the outcome. I'm flying 38 years and new experiences always excite me. Thanks for your reply.
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Jon, I have that plane 13 years now and it's always been very tail heavy. So a lot of lead weight needed at the front. No, this is just an experiment I'm carrying out with the gear raked forward at this acute angle. If it doesn't work out its just a simple process of raking it back an inch or so. Thanks for your reply.
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OS 95v fourstroke engine in excellent condition.
aidan mcatamney replied to aidan mcatamney's topic in FOR SALE
Hi Glenn and thanks for your reply. Sorry to inform you that this engine is no longer on the market. Kind regards Aidan. -
Second Flight Of The Beaver. 24th Of March 2024
aidan mcatamney replied to aidan mcatamney's topic in All Things Model Flying
Thanks Toto for your kind comments. No more than just over half throttle was applied and this was more than enough to keep the Beaver aloft. -
Forum members' new models: Let's see them.
aidan mcatamney replied to Paul Marsh's topic in All Things Model Flying
Beautiful plane. -
Thats brilliant Toto and it will only get better from here on in. Happy Easter and Happy Landings.
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Thats a nice looking plane Toto and its a twin also. It should fly great.
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A wee visit to the field tomorrow Toto would give you a break from everything else that is going on domestically in your life. As we say over here, "A change is as good as a rest"
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The Beaver at South Derry Model Flying Club.
aidan mcatamney replied to aidan mcatamney's topic in All Things Model Flying
Always very reliable. -
The Beaver at South Derry Model Flying Club.
aidan mcatamney replied to aidan mcatamney's topic in All Things Model Flying
The Jupiter is a nice looking plane. They are all well built. . -
I remember Brian many years ago when the Kyosho 90 Spitfire was released for sale, I always regret not buying one. I was very friendly at that time with an English man who was working and living in Dubai. He was also a member of the local rc model flying club and his favourite plane to fly with a 91 fourstroke engine was this very Spitfire.