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Aerial Photography Discuss all aerial photography topics as they relate to rc aircraft

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Old 05-01-2012, 04:44 AM   #51
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Unfortunately he don't fly and I am probably to old to be trying.But time will tell.lol
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Old 05-01-2012, 04:57 AM   #52
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Never to old.... Besides, soon there will be a pill for it!!and get him flying!! Always great to have a buddy flying with ya!
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Old 05-02-2012, 05:51 AM   #53
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I agree, you should definitely get used to flying the plane without FPV equipment first. I personally wouldn't put my gear on the plane until I knew I could fly it well enough to trust my self to not crash with a bunch of expensive equipment.

"I didn't crash... I just did an inverted nose landing!"
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Old 05-02-2012, 05:52 AM   #54
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Oh, and welcome to the world of FPV! Have fun, and be safe!

"I didn't crash... I just did an inverted nose landing!"
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Old 05-15-2012, 05:53 AM   #55
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Finally finished the plane! I also finished a wooden box and a wooden mount for the patch. It mounts with velcro about 6 inches above ground, tilted up several degrees. I also have a pair of Fatshark Base video goggles on the way!

Here are some pics of the finished plane.


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"I didn't crash... I just did an inverted nose landing!"
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Old 05-15-2012, 08:53 PM   #56
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NICE!!!

let me know how you like the Fatshark glasses.
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Old 05-15-2012, 09:10 PM   #57
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Looks and sounds like you have this FPV stuff all coming together. Nice looking set up to. I am still waiting on my plane to get here from China. Been setting in customs for 3 days at least. I would like to know how you like the video goggles to.
Have you flown your plane with FPV equipment yet?
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Old 05-16-2012, 01:45 AM   #58
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I flew the plane for the first time today. Although I had the FPV gear running, it was on a monitor, and I had my spotter watching it. I was flying 3rd person. (glad I was too! )

My spotter hand launched it, and it had plenty of power to get up, even though he threw it at a very steep upward angle. Glad to have avoided the stall . The first thing I noticed, was that the thing flies like a damn bus. Flew about how I would imagine a 747 would fly. For long range FPV, this could even be considered a plus, but when trying to stay in a field, its a nightmare! Especially after coming from EDFs and 3D planes. I was barely able to avoid power lines. Speaking of which, the plane didn't seem to want to climb, which was a bit of a surprise, being that it has such a large wingspan. However, this likely is because the elevator had such minute throw. However, everything is maxed out on elevator throw. Not exactly sure how I will fix this . It also requires rudder in any kind of a hard turn, oddly enough. (Perhaps from a lack of any dihedral?)

All in all, I was fighting to keep the plane up the whole flight. I landed (thank god) after about 4 large circles around the field. When I first got it in the air, I was almost sure I was not going to be able to bring her back safe by the end of the flight. Thankfully, I did. When I got it on the ground, the motor was very hot, even though I had only been flying primarily a little over half throttle. I am using a 10*7 APC sport prop. The recommended prop is a 10*5 slow fly. Perhaps I am simply useing the wrong prop ? Having the wrong prop could also explain why it didn't fly so good. Before the next flight, I will be finding a way to get more elevator throw, and I will also be finding a larger field to fly at. Depending on what you all think, I also might swap the prop out for the 10*5 slow fly.

In better news, the video gear worked great! My spotter said there was no interference, or snow in the picture at all. However this is kinda to be expected, as the plane was just out in the field in front of the patch. One of the first things I did after the plane landed was check to see how hot the video TX was. It was nice and cool .

Anyway, I'm afraid it will probably be a while until I can give you any kind of review on the fatsharks, being that I have plenty of things to work out on the plane before I will even consider throwing on goggles, and I have them on backorder anyway. I'll post my first thoughts on them when they get here though. Maybe even hook them up to my PS3 and test them out

"I didn't crash... I just did an inverted nose landing!"
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Old 05-16-2012, 07:02 PM   #59
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What weight has your Fatshark ended up ready to go with all the FPV gear on board?
From the flight you describe it sounds like you are a bit under powered, or a bit over loaded!
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Old 05-16-2012, 07:53 PM   #60
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Hey skyman: Sounds like you had an interesting maiden flight. Glade you got it down in one piece. Was CG on plane where it calls for? Could be prop causing motor to over heat. Might check amp draw with that prop, it is possible you are pulling to many amps. I think i woud try the 10x5 and see how she does. Maybe check throw on servo and get more elevator.
Glade to hear FPV gear worked out good.
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Old 05-16-2012, 11:30 PM   #61
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Originally Posted by quorneng View Post
What weight has your Fatshark ended up ready to go with all the FPV gear on board?
From the flight you describe it sounds like you are a bit under powered, or a bit over loaded!
Could be a bit over loaded, but power seamed ok. Once I get more throw in the elevator, as soon as I get the plane in the air, I will probably just fly at full throttle for a while and gain altitude. Thinking back on the flight, I can't expect to get a ton of altitude when flying around half throttle . I think I was just afraid to use full because I was so worried about it going down. I should know better by now haha.

And what do you mean about the fatsharks and weight? Fatsharks are the video goggles I have ordered to fly the plane on. Are you referring to the plane?

"I didn't crash... I just did an inverted nose landing!"
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Old 05-16-2012, 11:32 PM   #62
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Originally Posted by flybuy View Post
Hey skyman: Sounds like you had an interesting maiden flight. Glade you got it down in one piece. Was CG on plane where it calls for? Could be prop causing motor to over heat. Might check amp draw with that prop, it is possible you are pulling to many amps. I think i woud try the 10x5 and see how she does. Maybe check throw on servo and get more elevator.
Glade to hear FPV gear worked out good.
Thanks! Servo throw is maxed out. I will have to find a way to make a bigger control horn or something.

"I didn't crash... I just did an inverted nose landing!"
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Old 05-17-2012, 02:23 AM   #63
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CHECK that CG!!!!!! What were the factory numbers??...then account for added FPV gear in the nose! My gear adds 5oz to the front of a Diamond 2500A, its 98 inches wingspan. Adjusted the CG with the gear onboard...and she flies great.
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Old 05-17-2012, 03:06 AM   #64
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Originally Posted by TM4197 View Post
CHECK that CG!!!!!! What were the factory numbers??...then account for added FPV gear in the nose! My gear adds 5oz to the front of a Diamond 2500A, its 98 inches wingspan. Adjusted the CG with the gear onboard...and she flies great.
The factory numbers are 100-120 mm from the leading edge. With the FPV gear it balances right around in there with the nose angled down just a bit. Think I should move it back?

"I didn't crash... I just did an inverted nose landing!"
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Old 05-17-2012, 03:11 AM   #65
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Do you know how to conduct a dive test? I would do that, and adjust CG accordingly. You might find that you will not need to do any mods to the elev.
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Old 05-17-2012, 03:15 AM   #66
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A dive test? What is that? If it is what it sounds like, i'm not sure I can do one. I don't know if I could pull up fast enough!

"I didn't crash... I just did an inverted nose landing!"
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Old 05-17-2012, 03:15 AM   #67
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This is a great article about CG. Easy to read and understand..I use to have a Hobie Hawk many years ago. You will find the dive test in the article. Also, just good to know information!

http://www.hobiehawk.com/CGdivetest.html
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Old 05-17-2012, 03:27 AM   #68
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Good point here!

"You add an extra ounce of lead in the nose to give better stability. The horizontal stabilizer must now counteract the extra weight in the nose with a negative force to balance it out in flight. So now there's more weight in the nose, the stab is pushing down also and the greater negative incidence of the stab now creates even more drag and consequently a very steep L/D glide angle. No wonder it flys like crap……Another thing that can happen with a forward CG is that at slow speed such as on landing, the stabilizer can actually stall and the nose can suddenly drop without warning!! "
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Old 05-17-2012, 06:13 AM   #69
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Originally Posted by TM4197 View Post
This is a great article about CG. Easy to read and understand..I use to have a Hobie Hawk many years ago. You will find the dive test in the article. Also, just good to know information!

http://www.hobiehawk.com/CGdivetest.html
Read through the article... Clever! I will be moving the CG back before the next flight, as well as do a little work to the elevator. I'm also going to be at a larger field to fly at. Now I just wonder about the prop....

"I didn't crash... I just did an inverted nose landing!"
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Old 05-18-2012, 01:02 AM   #70
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Great article T M 4197 thanks for posting.
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Old 05-18-2012, 03:09 AM   #71
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Agreed ^

"I didn't crash... I just did an inverted nose landing!"
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Old 05-18-2012, 03:29 AM   #72
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In other post in the forum, you will read where the dive test is also used in power planes, I also use the dive test with my prop planes if I have a hard time getting that sweet spot. I still think, once you get that CG in the "sweet spot" you will see where the elev is more than effective for you and you will not need to mod it. IMHO.
I would stick with the factory requested prop. You might wanna search that particular plane in the forum and see if any other props were experimented with!
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Old 05-18-2012, 06:24 AM   #73
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Originally Posted by TM4197 View Post
In other post in the forum, you will read where the dive test is also used in power planes, I also use the dive test with my prop planes if I have a hard time getting that sweet spot. I still think, once you get that CG in the "sweet spot" you will see where the elev is more than effective for you and you will not need to mod it. IMHO.
I would stick with the factory requested prop. You might wanna search that particular plane in the forum and see if any other props were experimented with!
Sounds good, will do. I'll report the results of my next flight, however that won't be until sometime late next week or the week after that . I'll be out of town.

"I didn't crash... I just did an inverted nose landing!"
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Old 05-27-2012, 12:36 AM   #74
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UPDATE:

Goggles arrived in the mail today

Initial thoughts are good! They even sent an extra one of those barrel plug connector things you always seem to be needing . The packaging was great, and the wiring was no problem at all. They were literally plug n play with my gear . They fit quite comfortably on my head, and they keep out all outside light. Stylish too!

When you look into the goggles, you see a very large square of video, However you still see some black around the outside of the square. In other words, it's kinda like watching an imax movie in a pitch black theater. I hope this makes sense, as it's very difficult to describe.

When I first plugged them in, the color was a little off, but this was very easy to fix with just a few clicks on the contrast joystick. The brightness is also adjustable on the same joystick, a nice feature in my opinion. I have yet to test them out with the plane in the air, but looking forward to it!


Now onto the plane...

I set the CG back, did a little adjusting to the elevator, and put a different prop on it. I was flying with a prop made for a gas motor, and I even had it installed backwards ! Can't believe I didn't catch that the first time around! Anyway, second flight should be sometime soon!

"I didn't crash... I just did an inverted nose landing!"
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Old 05-27-2012, 12:43 AM   #75
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Default Fatsharks

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