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Old Nov 11, 2011, 01:20 PM
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gatorlynch's Avatar
Coral Springs, FL
Joined Mar 2010
409 Posts
Popad - thanks for those links - I haven't seen some of them yet.

Since you have been successfull with the HK parafoil -
  1. What have you found to be a good AUW? I think my current 58 oz. (1.64 kg.) is too much.
  2. Do you think my AOA is correct, based on my Attempt #2 video? My ring spacing is at 70mm.
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Old Nov 11, 2011, 01:38 PM
RC Paramotor Pilot
popad's Avatar
Brasov, ROMANIA
Joined Aug 2008
196 Posts
AOA, seem to be right, but CG of your trike is not ok.

You must more tranning for hand launch. This method is the best. I spent some time, until I have succes, but is great.

I see when you launch from hand, I observ tilt to the left. Try to launch just no inclination, and to begin of flight, try to adjust throttle (on launch at me is 70-75%, then reduce to 50%), after that use steering commands.

My gondola use weight steering. For that I re-string HK paraglider. No more problems with knots

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Happy landings,

PopaD
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Old Nov 11, 2011, 04:21 PM
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Coral Springs, FL
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Quote:
Originally Posted by popad View Post
AOA, seem to be right, but CG of your trike is not ok.
What is the correct CG ?

Thanks for the advise - I appreciate it !
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Old Nov 11, 2011, 10:43 PM
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Quote:
Originally Posted by popad View Post
Hi,

I see this video on youtube:

http://www.youtube.com/watch?v=ULhPEZym5XU
That was a funny day The white foil is the origional foil Hobby King sent out for testing and the guy flying it, Ishardi, its his second flight ever The other HK foil is on our original trikes and flew not bad at all. Its a pitty HK used such an old foil plan, it does fly but it is not easy.

Gatorlych, your CG is to far forward, hold the buggy by the toe point and it should be slight nose down or level It should ground launch, I very rarely hand launch as it just is not necessary especially when the buggy is stable. Awesome buggy by the way

The Hobby King foil likes 1.5-1.8kg, and 1000kv/9inch prop on 3cell (1.5-1.8kg)....... or 800kv/12inch prop on 4cell (1.8-2.2kg)
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Old Nov 12, 2011, 02:30 AM
RC Paramotor Pilot
popad's Avatar
Brasov, ROMANIA
Joined Aug 2008
196 Posts
Hi @Paradude,

nice to meet you

Wonderful flight ! Thank you for your information.

I use a trike build following Troy's plan from Seabreeze Parachute (a lot of informations and flight tricks about flight of RC paraplane on his site).

About CG in my case:



It's a link to picture from Troy's site about C.G. setup.

Happy landings,

PopaD
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Old Nov 12, 2011, 03:48 AM
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Howdy Popad, those paragliders are cool and fly really well. It is interesting how yours is set up a little high, perhaps position of prop...pusher compared to pull has an effect on thrust? One of the reasons it is hard to help people is some things work for some but not for others, but once sorted they are a nice relaxing thing to fly
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Old Nov 12, 2011, 05:42 AM
RC Paramotor Pilot
popad's Avatar
Brasov, ROMANIA
Joined Aug 2008
196 Posts
@Paradude: you have right.

A propeller over 11" wil be too big, and and will affect the control in flight. I use 10"x7" now, but sure depend too on what motor is used.

But for pusher I have like a mark: Hirobo Paraplane (30mm):

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And for pull I have like mark: Seabreaze gondola (1-1,5inch).

It's same attitude and position of the trike (gondola) on static stand.

For me work like that. I use my trike (seabreeze) with 3 different parashute:

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Happy landings,

PopaD (on my site more details)
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Last edited by popad; Nov 12, 2011 at 05:47 AM. Reason: correction
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Old Nov 12, 2011, 06:46 AM
RC Paramotor Pilot
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Brasov, ROMANIA
Joined Aug 2008
196 Posts
@Paradude:

can you tell me, what is distance in your case:

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Thanks,

Happy landings,

PopaD
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Old Nov 12, 2011, 01:00 PM
It was a GLITCH! Honestly!
SafeLandings's Avatar
Stourport on Severn ,Worcestershire, United Kingdom
Joined Dec 2007
4,843 Posts
Gator,
The MKI version weighed in at around 1.4 kg, the second version weighs around 1.9kg.
I have had lots of problems trying to get it into the as it just kept nosing up and then smacking the ground. Slowly I have been increasing the gap on the rings.
Today it flew!! first flight there was very little roll control and the wind kept taking it down wind. So I have been tightening the brake lines and each time things get more positive.
It is still turning better to the left than the right but I feel more in control of things.

I am using a 4s 3000mah Lipo, 900kv motor swinging a 12 x 8 prop. Seem to have plenty of power.

Here is a short video made today of one of the adjustment flights. I will tighten up the right hand brake line a little more to see if this improves things tomorrow.

Will let you know how it goes

Rich

RC Paramotor, Getting Better! (3 min 29 sec)
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Old Nov 12, 2011, 03:31 PM
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Quote:
Originally Posted by popad View Post
@Paradude:

can you tell me, what is distance in your case:

Attachment 4412189

Thanks,

Happy landings,

PopaD
That IS my actual distance, cause that is my hand holding my paraglider

Here are the rest of the setup pics, but as I said before ever trike will be different.

http://s800.photobucket.com/albums/y...Buggy%20Setup/
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Old Nov 12, 2011, 03:33 PM
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Joined Jun 2006
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A great flight, Rich

Hi, Rich, a really great flight and I'm looking forward to some more!
I've been fascinated by these powered parachutes (for aerial photography purposes) and started with a "Airfoil Aviation" kit - garbage; it was ic engined and I got it off the ground once. I next had some success with a "Skysurfer" clone and took many photos with it with a small digicam. It was easy to launch by hand and that I liked. I next bought a Seabreeze kit and had some success with that but it relied on weight shift for steering, kept stripping servos and I found difficult to launch. I am now flying a "Ufly" kit which uses trailing edge steering and this set-up (after some mods plus weight stripping) takes up my Panasonic FX35 and seems very suited to aerial photography. Because the chute is relatively small I find it easy to hand launch. The larger chute that you are experimenting with seems ideal but I can see that it appears very difficult to hand launch asI presume it would lift aheavier camera.
Ted Northwich Cheshire UK
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Old Nov 12, 2011, 04:04 PM
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gatorlynch's Avatar
Coral Springs, FL
Joined Mar 2010
409 Posts
Rich -

Congratulations on your flight !!!

Just watching yours makes me feel my time spent in getting mine to fly is not being wasted.

What is your AOA ring spacing ?

How is your trike balanced, CG wise ?

Thanks for sharing your success.

Tim
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Old Nov 13, 2011, 02:05 AM
RC Paramotor Pilot
popad's Avatar
Brasov, ROMANIA
Joined Aug 2008
196 Posts
Rich,

very nice flight, and very nice trike.

Some pictures of your trike ?

Happy landings,

PopaD
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Old Nov 13, 2011, 06:47 AM
It was a GLITCH! Honestly!
SafeLandings's Avatar
Stourport on Severn ,Worcestershire, United Kingdom
Joined Dec 2007
4,843 Posts
Ted,
I have no issues with launching, just get the foil lay on its trailing edge, add about a 1/4 throttle. Then just a quick push forwards with the Trike and away it goes.
But it hasnt all gone like that, I have had about 30 crashes before I hit the sweet spot.

Tim,
When hung by the main line mounting points my trike has a nose down attitude of around 3 degrees. To start with it was horizontal so I have moved the battery forwards which seems to of helped mine.

I have taken a photo of my line ring spacings if this any any help? The recommended spacings off the HK forum are way out and seem to put the foil into to much positive pitch causing the nose up problem(or too much drag?)

Popad,
A photo of my trike.


Rich
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Old Nov 13, 2011, 07:02 AM
RC Paramotor Pilot
popad's Avatar
Brasov, ROMANIA
Joined Aug 2008
196 Posts
Quote:
Originally Posted by SafeLandings View Post
I have taken a photo of my line ring spacings if this any any help? The recommended spacings off the HK forum are way out and seem to put the foil into to much positive pitch causing the nose up problem(or too much drag?)
I'm interested. Thanks !
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Last edited by popad; Nov 13, 2011 at 07:11 AM.
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