Here is a list of all the postings eflightray has made in our forums. Click on a thread name to jump to the thread.
|Thread: full-size electric-powered flying anyone?|
Just build your own ----
|Thread: Famous model flyers|
I met Howard Boys a few times many many years ago, (1950's -1960's). He was a member of our the local Rugby MESAS club. Rugby Model Engineers Society Aero Section.
He occasionally flew some of his single channel RC models at Brownsover, Rugby, and also at Church Lawford aerodrome.
There is a tribute to him on the 'antiquemodelaircraft' site.
|Thread: Spitfire light|
Built up foam wings, (and fuselage, tail etc), for a Spitfire ?
With retracts, flaps, and electric power, 7Lbs - 2oz flying.
|Thread: Laser cutting Depron|
What's wrong with a knife, (or as Crocodile Dundee put it, "Knife ?, that's not a knife, THAT's a knife).
All hand cut Depron, plus a little balsa.
|Thread: Gatwick drone incident|
Who cares what price, ....
as long as there are a least 2 eggs, 2 sausages, bacon, beans, tomatoes, and naturally some black pudding ......
Damn, just dribbled on my keyboard.
Watch out for a visit from the RSPB, getting a goose drunk as well on Chardonnay is probably one of their do-not rules.
I remember many years ago when we used to fly at disused airfields, we would often see drones hovering in the sky,
occasionally one would dive down to catch a mouse or small creature.
But I suppose they could have been Kestrels, or other birds of prey. They also seem to like flying and hovering over airfields.
Just shows that not all people see the same thing.
Is it a bird, is it a plane, is it ......
Is there an 'official definition of a 'drone' ? (Preferable not one just made up to suit forums).
People seem to just be lumping any multi-rotor model in to that category, yet there are fixed wing model that can basically do the same job.
I'm sure the Army doesn't say, "No, it's not a drone we use, it's a fixed wing model plane".
|Thread: IC and Electric|
No, you are buying the wrong plane for the batteries, (electric fuel), you already have.
But then if you look at prop 'pitch speed' for the prop changes, you see why there is a difference in flight characteristics.
|Thread: cutting foam|
Here's a tip.
Use your hot wire cutter to slice off thin sheets from the foam block ..... and then .......
build foam wings
Or just buy Depron.
|Thread: Glue for foamy?|
The important part is, UHU Por is safe and doesn't melt foam, many other adhesives can, though it can also obviously depend on what foam material.
Another alternative is a hot glue gun, though preferably one with a lower heat setting as too hot also melts foam.
|Thread: Can a drone fly at 10000ft?|
Fantastic eyesight pilots have. Even recognising types, colour, and manufacturer.
It would be interesting to know what pilots can actually describe when they say they saw a 'drone'.
Many people will probably instantly think and imagine a quadcopter (multi-copter) type vehicle.
Back in the 50's, 60's it would have probably been called a 'UFO', but I imagine that pilots do not report a 'UFO' any more, just in case they get sent for psychological evaluation, and it goes on their record.
Not saying it wasn't a 'drone' that these pilot see and report, but it does seem to be 'the thing to report' if something is seen that seems 'different' from a bird.
Same as a 'UFO' instantly seems to relate to a flying saucer, space ship, etc.
Same a my B-25 being called a Lancaster, because it has twin fins.
It's often a guess, and the imagination that enhances the partial image.
It will be interesting when some facts appear, (if you can actually trust 'facts' ).
|Thread: What can I fly on a 2S battery?|
If you have a surfeit of 2s Lipos, you could always connect them in series to get, -- 4s, 6s, 8s etc
All my 6s models use 2x 3s packs.
|Thread: which is cheaper,IC or ELECTRIC?|
Not easily as the Dauntless was built 10 years ago, the Spitfire 6 years ago, (and both are still flying).
Dauntless - Emax 4020 - 520kv motor, Zippy 4000mAh 40C 3s battery x1 (current battery, have used others)
Spitfire - Emax 4030 - 385kv motor, Zippy, as above, 3s x2 (6s power).
Most electric motor come complete with a mount, ('X' mount), and prop driver.
The Zippy batteries, I have 6 3s packs, (plus some older ones still usable).
I would add that cost is probably not that easily compared, I have no clue how much the electricity cost charging them.
Edited By eflightray on 06/12/2018 15:37:46
To throw in another odd-ball,. What IC engine would be needed to turn a 17" x 8" prop ?
I fly a scratch built Douglas SBD Dauntless using a 17" x 8" prop, on 3s at 340 watts. It's 67.5" span and flying weight is 4 Lbs - 12.5 oz, and that includes retracts.
It flies quite scale like, obviously not a pylon racer.
For scale model, an electric motor can swing a much bigger prop for its weight, plus if you want to you can build quite light for electric.
I built the TN 70" Spitfire, (free plan in RCME Autom Special 2010, mine actually ended up at 72" span). But I used Depron and a small amount of balsa. Still used the TN molded exhaust stacks, lower cowl and cockpit. The plans quote a expected flying weight of 15 Lbs for the original build and IC engine power. Mine is 7 Lb 2 oz flying, on 6s, turning a 15" x 8", (originally a 16" x 10" but still flies as well on less amps).
I'm not arguing whether IC or electric is cheaper or better, but that it's just different, if you want it to be.
The original question was which is cheaper.
But this sort of question often turns into which is better. The same usually happens between using balsa or foam.
The only 'better' is in people's minds.
The sound of an IC engine is often what make a scale model that bit more interesting, especially if it's the 'right' sound.
Admittedly not a very good example, there are better sound systems.
IC fliers often still need the help of electric power, ...... to start their engines for them.
I was always a 'flicker', back in the day.
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