Richard Wills 2
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Posts posted by Richard Wills 2
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My oldest models
Precedent Hi boy I learned to fly on in 1995
Kyosho Concept 30 I bought s/h in 1997 which first flew in 1990.
Both restored a couple of years ago and fly a few times a year.
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6 minutes ago, Paul De Tourtoulon said:
5 litres 2% = 10 ml of oil,
5 litres 3% = 15ml of oil,
it's missing 5ml of oil
5 litres at 50:1 is 98ml of oil
5 litres at 30:1 is 161ml of oil
Adding 60 ml will get you to near as needs be 30:1. If it was me I would probably run it as it comes also.
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A burning log on your fire is also a deflagration. Gunpowder does not explode unless confined, however slight, in some way.
Edited By Richard Wills 2 on 31/01/2021 20:27:43
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Lipos don't explode, they rapidly combust, there is a dfference. There's enough Lipo myth to frighten people without throwing explosions into the equaution:
Gunpowder also does not explode it rapidly combusts. The explosion in a firecracker happens when the expanding gases are trapped by a container (cardboard casing) and the build up of pressure causes it to fail. Another reason to vent your box is the gases released by the failed lipo will displace the air in the box rapidly, once thats gone no oxygen remains and combustion cannot continue.
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I switched from Spektrum to Frsky at the same time as my Dad a few years ago and went for the X10S. Excellent transmitter. I tried the Frsky standard menu based software first and never switched to openTX and I am glad I didn't to be honest as it will do everything I could ever want it to.
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Laser or Irvine, OS 61 would be a tad heavy and the exra power is not necessary. Any standard servo will be more than good enough. Mine has an OS 50 SX and Futaba 3001's all round, balanced perfect. You will need a silencer manifold extension block for the exhaust on the 2 stroke
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With the sound back up which will undoubtedly be there i'm all for it
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13x8 works very well on an 82, albeit on an acrowot
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It is a fantastic plane for loads of engines. I have swapped the 180 out of mine for a Moki 210 on a 19x10, now it has a fire lit under it. Loads of fun.
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But equally the Laser 180 will be beaten by the OS 120 two stroke. The Saito 180 twin previously mentioned seems to be particularly light. But it's not very powerful for its size. Twins, be they two stroke or four stroke, usually fall down on internal friction, especially at these small sizes. And even single cylinder four strokes are at a disadvantage. The OS 91 two stroke is close to double the power of their 91 four stroke. The heli engines are even better, throttle very well, and they only need the head turned down (if you want it cowled), plus a prop driver. There's one in a 'classic' pattern plane of mine.
And as you also say the differences. won't be noticed much in the air.
Edited By Richard Clark 2 on 30/07/2020 20:08:39
The OS 91's will produce double the power of the 91 four stroke, only problem there is to get the hp you would need 15,000 rpm which means something like an 11x6 or 11x7 prop. Pretty useless thrust wise on anything larger than a 40 size aeroplane. On representative props 14" plus the difference is much less pronounced.
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Orange RX receiver, costly mistake.
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Completely correct, I will be at the patch tomorrow afternoon enjoying open air recreation, not bending anything at all.
Edited By Richard Wills 2 on 30/12/2020 23:46:32
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C ratings are mostly very exaggerated, to the point of being complete lies. I once had a small foam pylon racer with a brand new 60c 2200 3s which going of the c rating should have given 132A. Voltage crashed at 65A. Other than a guide to a higher C rating being better than a lower one the numbers mean very little. A 30-40c pack I find is fine in most models.
Edited By Richard Wills 2 on 14/12/2020 17:12:56
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I would add that if possible throw adjustments should be made mechanically on the linkage for best results before resorting to transmitter adjustments.
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Most of my models now use life rx packs and they are better in every single way. Nimh's are old technology now, they do the job, but have had their day IMO.
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On every system apart from perhaps early DSM2 receivers which the minimum voltage was higher than more modern ones 4.8V is perfectly fine, and even on those you only had a problem if the battery and leads were not specced properly for the servo current draw.
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Savox 0351 is a good sport digital in the same price bracket as a standard Futaba. Worth considering.
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rcjapan.net
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I also disable it on all electric models, on the dx9 set the trim step to zero, then calibrate the esc. If an esc will not arm unless you lower the trim, it is because you didn't calibrate it, in which case you are probably not getting 100% 'throttle' either.
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ISDT no question, night and day better than any of the standard 4 button chargers.
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The MDS 40 I am running now leaks fuel from the main needle, low needle and spits it out the carb, runs like a swiss watch though now the low end is set.
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The one major problem with MDS engines is that unlike an OS they don't run if the carb isn't set properly, an OS runs badly, the MDS just stops. I quite like them, no where near refined but I have several 'metal door stops' given to me because they never kept running for a whole flight which have been great reliable engines.
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Don't think they are listed seperately you get it as part of a new pin. Happy days if you can make them yourself.
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Posted by Paul Marsh on 10/10/2020 18:19:47:
Picked this up today, for £150, has a new SC 90 FS in it, all servos, Life battery, electric retracts, oleos. etc. Said he has flown it 50 times, but looks brand new, even the engine is clean. Ran the engine in, and nothing to do on it, just set it up...
It's a VQ 60 size Hurricane. not the best scheme, but for a sport model ok, and they do fly ok, as I have the .46 winter camo one.
Glad you like it Paul, Engine has just been off for new bearings and a clean that will be it's first run since. I do like to keep them nice mate, it should just be a case of sticking a receiver on and go.
Charging Multiple NimH Batteries
in Batteries and Chargers
Posted
It is quite normal for a nimh cell to reach 55 deg C towards the end of a 1c+ fast charge, your calibrated finger will perceive this as red hot.