Richard Harris
-
Posts
4,686 -
Joined
-
Last visited
-
Days Won
2
Content Type
Profiles
Forums
Blogs
Gallery
Calendar
Downloads
Posts posted by Richard Harris
-
-
Steve,
If you have no joy I'm sure I have a copy somewhere, pm me your email address and I will see what I can find next week.
You sometimes come across copies on ebay, it was published twice.
Rich
-
There's plenty to read through James, if you can't find the answer just ask.
I'm not into helis so don't really know how autos compare, I'm guessing the lack of wing would be a similar orientation?
Ive found they do fly like fixed wing, with the exception they are impossible to stall.
Please post your efforts if you get chance?
Rich
-
Steve,
One of my old clubmates who is no longer with us cut lightening holes into his taper winged WOT 4, it didn't seem perform any better than a solid wing so I'd question whether it is really worth the extra effort.
I increased the area of the ailerons, elevator and rudder on my last WOT 4 and it did make a difference if you like lots of authority, that said this was on the parallel winged version which I prefer.
Rich
-
Preben,
Thankyou for the photos, you can never have to many! The head being used is the Razor unit so I should be able to cover that up like the full-size.
Rich
-
John,
I did manage to get the Avian 2 flying quite well though it does have its limitations.
As the thrustline is not quite inline with the vertical CG it became pitch sensitive under power, as the motor is fixed the only way I could get around this without adding mass was to increase the span of the rotors adding more drag.
This cured the pitching whilst the rotors are loaded up, as they become unloaded the misaligned thrust takes over again.
So the only way to fly it is smoothly keeping the turns flatter and airspeed constant with better throttle management.
Another issue is that the yaw control is strong under power, as soon as power is decreased it gets weaker until its non existent as power is cut, you need to gain quite a bit of airspeed to regain rudder authority.
Thanks for all the information regarding the Pegasus, looking at your website you been envolved in some great projects. Please let me know how the Pegasus project progresses? I'd would love to see it!
Rich
-
4 minutes ago, Robin Colbourne said:
It looks like a Aviomodelli Ariane 5 from Italy. There are a few pictures of one for sale here: Aviomodelli Ariane 5 Motor Glider
Mantua Models still show it on their website, but it appears to be out of production: Mantua UK - Ariane 5 Motor Glider
That's it, thankyou Robin
-
1
-
-
I have been asked by an elderly modelling friend to sort through some of his stuff.
We came across this motor glider and he couldn't remember much about it other than it was built up from a kit and he'd never quite completed it.
I'm hoping someone will be able to shed some light on its id please, I haven't a clue?
The wing is a foam core with a span of 2900mm and is two piece The fuselage seems to be ABS and the canopy is quite thick and heavy.
I have no idea of its age, any ideas gents?
-
On 13/09/2023 at 17:06, Outrunner said:
Following this one with interest, no doubt you will build another winner Richard.
Working rockets too?
Thanks Outrunner,
I will probably give the rockets a miss for now, though November 5th is soon approaching 🎆
G-AART is another favourite of mine, a lot cleaner than G-ARZB so easier to tackle for the first one.
Interestingly Ken Wallis told me he designed all the pyrotechnics for the Nellie vs Heli flying scene, he was an exceptional engineer.
On 13/09/2023 at 17:07, Preben Soegaard said:Oh, My favorite James Bond vehicle! (My website is dedicated to the vehicles of the James Bond films)
Like you, I've always wanted to build and fly a Little Nellie model. And autogyros are interesting, but I haven't completed a build and flown one yet. (a Crane Fly Lite is in the pipeline)
Look forward to follow your progress here.Preben,
Thanks for the link to your website, I'd forgotten about half of those.
You can't go wrong with a Crane Fly or any of Tom Wrights designs, perfect for a beginner.
Rich
-
Ever since I have been messing around with autogyros I've wanted to design a workable WA-116 'Little Nellie' that could be published and constructed by anyone with building experience, with the blessing of Ken Wallis, I have sat on it for 14 years for several reasons.
The obvious is that the WA-116 is not a beginners model (probably a second pusher type model) , yet, like a spitfire it is the one that the majority want to build and fly first and we all know what can happen there.
With a couple of tractors and pushers now published those that have dipped their toes into the dark side have become pretty competent at this autogyro malarkey.
Over the years I have built a couple of Nellies, a smaller indoor/calm weather version and a larger fibre glassed bodied model which is very close to scale. This required me to tig weld parts and make moulds which I found a very and boring task, if I'm honest the latter version is a bit porky.
So, this new version will be a cross breed between the two hopefully keeping the weight to a minimum, built from balsa/ply and all the usual ingredients us models have hanging around in our man caves.
The plan is to build a basic framework which I hope to get into the air by the end of the year if all goes to plan, as for the fuselage I will decide after (either balsa or vac formed I think).
Using 10mm diameter tubing the scale is 1/5th so should be good for a 3s 2200mah Lipo and Revolver II blades, this tubing will slide into a 'Gyroo' type frame which will hold all the necessary electronics.
I have not long bought myself a 3d printer so have been playing around trying to design brackets etc, I am unsure whether these will be strong enough for the job so will require testing at some stage. They can easily be fabricated from alumnium or brass sheet if they fail.
As for the head I have spoken with Malcolm at Coolwind and he is going to modify his Razor head , to keep the head looking correct the push rods are in tension so the head is reversed, this will mean upping the diameter of the rods and ball joints to 3mm.
For now a few photos of my efforts, this will take some time....
Rich
-
7
-
-
I bought a 1metre straight edge/rule last week, perfect for cutting full lengths of balsa strip safely as it is quite wide and has a handle on, think it was £7.99.
-
Had an outing with three of my smaller models yesterday, it was flat calm and I was the only one up at the patch! perfect weather for some relaxed flying. My canard is completely dialled in now and goes exactly where I point it, one of my favourites.
A short piece of footage I took:
Rich
-
1
-
-
On 24/08/2023 at 22:08, Trevor said:
Ooh, a shape-shifting Shiftie! 🙂
It's funny you mentioned that Trevor, it waa nearly named Odo (trecky fans will know).
-
1
-
-
Finally got round to editing the bit of footage I captured flying on holiday off the cliffs in Cornwall.
I'm finalising the drawings so will update when I know if and when they will be published.
Enjoy
Rich
-
5
-
-
I like that Linds, good luck with the maiden.
Rich
-
1
-
-
Here is a short video I took of my Gyroo flying off the Cliffs whilst on my Hols.
Could of done with more wind to maintain lift without using power and more ballast weight to penetrate. Nice relaxing flying.
Rich
-
6
-
-
Managed to get out today to try both versions of Shifty off the slope Both went surprisingly well, I really needed a touch more breeze and did cheat at times.
Had some interest from the local gulls, the delta eats up a lot of sky compared to the canard.
Will try again in a good wind when I get the chance.
I grabbed some video but it will be a week before I can upload, a couple of stills for now.
Rich
-
4
-
-
On 01/08/2023 at 11:37, Futura57 said:
Thanks. I can't afford what they are asking 😢
There are plenty of cheap/free CAD programmes out there which are just as good for our needs, I am sure others would be able to advise on what they use?
On another note I am hoping to sneak at least one of my Shifty's into the caravan with the intention of trying a bit of slope soaring on holiday, maybe even a Gyroo.
-
9 hours ago, Futura57 said:
Richard, what CAD are you using for your model?
Futura57,
I use Solidworks
Rich
-
Paul,
Nice flight and landing. Your like me, I much prefer flying without Expo as I feel more in control, well most of the time......
Rich
-
Interesting project Paul,
Back in 2009 I flew at an event in Holland and there was a German guy with a steam powered fix wing, if memory serves me correct it was a single cylinder motor and quite a work of art. I can remember seeing it running but missed it flying, when I get chance I will see if I can obtain more information on it.
Rich
-
5
-
1
-
-
It's been a few weeks since this years autogyro meet at WMFC. We were blessed with excellent weather with Saturday being the best where we saw just shy of 120 rc autogyros turn up.
This year we raised £545 for a local charity, thanks go out to all those who donated to the raffle and helped support this growing event.
Even bigger thanks to Cali and his clubmates for the use of their fantastic field for the 14th year.
I didn't grab much footage this year as I was mostly flying, here's a few snippets of what I did take.
Looking forward to next year already.
-
6
-
1
-
-
A few weeks ago I removed the electrics from my well flown and bruised prototype. My 'build photos' example was then covered and assembled before fitting the electrics, it had its maiden at our annual fly in the following week without a hitch. The original airframe was passed on to someone else to get them going.
Steve kindly flew it around so I could catch a photo.
Rich
-
1
-
-
I've known Malcolm for many years and he has only got a handful of small electric models, he generally flies Zagi type wings which he easily keeps within the perimeters of his land safely, a nice chap.
Location and ongoing feuds with neighbours is no doubt the reasons behind the ban.
-
1
-
2
-
1
-
-
That flies well Steve, well done
Revolver Pusher type Autogyro trainer
in Autogyros
Posted · Edited by Richard Harris
James,
15 degrees is about right for the hang angle, nose heavier is always a good bet for a maiden. As for the mast angle, it's swept back to help with the horizontal CG location, in the same way some full size have forward sweeping masts to compensate for the weight of the pilot.
The 5 degrees is the rearward tilt of the rotors in relationship to the horizontal stabiliser. It just so happens I set my masts roughly to 5/6 degrees Sweep and kill two birds with one stone, helps with CG and the blades can be set square to it for initial trimming.
Rich