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Jun 08, 2018, 06:55 PM
IMO ( In My Opinion ) →
balsa or carbon's Avatar
Quote:
Originally Posted by jpot1
Not the best video, but it a great flyer!

https://www.youtube.com/watch?v=vh8qgUrUSuE
Nice smooth flying !

Good job on the video , it's not easy hat-camming !
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Jun 13, 2018, 02:50 PM
pull up -- PULL UP!!!

Combat Delta


We got the first prototype combat delta flying. Very similar to the original design except tip fins instead of a center fin. Intentionally extra light and underpowered.

Flies well...nice and floaty as desired. Only concern is the design is naturally tail heavy requiring significant battery and/or nose ballast to get proper CG. And that's an issue because it's bringing the AUW up and affecting the floaty performance. Also, the Dollar Tree Foam is likely to be somewhat fragile in combat and I had planned on significant tape reinforcement. But 80% of the wing area is behind the CG, so structural reinforcements are going to require yet more nose ballast. Might need to use a protruding battery snout to accommodate the CG needs without adding a bunch of weight.
Last edited by hard line; Jun 13, 2018 at 03:03 PM.
Jun 13, 2018, 05:30 PM
Registered User
Next time you're at DollarTree, grab a pool noodle. Great lightweight foam for protecting a lipo. Just cut it up however you want and make a cubbyhole for your battery.Tape the large bbq bamboo skewers on the leading edges for crash proofing.

ProTip: Put tape down on the leading edge first, then another piece over that to tape down the skewer. When you need to replace a broken skewer, you're pulling tape off tape and it will come off cleanly instead of ripping the paper.
Jun 13, 2018, 05:46 PM
It seemed like a good idea!!!!
Hookit's Avatar
I don't use the paper cover foam, but what a top tip.

I have used tape on that type of board and it rips the paper to bits.
Jun 23, 2018, 03:08 PM
Out the Window
High Flyin''s Avatar
Here is my latest project....late as usuall. I planned to have this finished by this weekend so I could test fly it tomorrow. It is a 30" X 40" simple delta XL. It is ready for servos and a vertical stab. I wanted to use it to pull a red, white and blue streamer.

My first try at covering foam with iron on covering. Lots of wrinkles, but nice bright colors!
Jun 23, 2018, 03:26 PM
IMO ( In My Opinion ) →
balsa or carbon's Avatar
Looks good !

Flying video if possible !
Jun 23, 2018, 05:41 PM
Out the Window
High Flyin''s Avatar
Any rule of thumb on how large to make a vertical stab for a delta?
Jun 23, 2018, 06:21 PM
IMO ( In My Opinion ) →
balsa or carbon's Avatar
Quote:
Originally Posted by High Flyin'
Any rule of thumb on how large to make a vertical stab for a delta?
Just try to match proportionally what you see in the photos of this thread . Bigger will have more drag & slow down the roll rate . Smaller will have less drag , but too small may not be enough to stabilize yaw .
Jun 25, 2018, 03:20 PM
Registered User
Just in case anyone thought that the SSD is a novelty and can't do anything useful, here's my long distance FPV rig. It's a 40" version with 433 MHz running iNav. I got a personal best distance of 2.6 kilometers from launchpoint this weekend. It's flies 60 kph pulling 7 amps on 3s with a 2217 1400kv motor and a 7x6 prop.

The SSD is actually a fantastic FPV rig because of its stall characteristics. If you get twisted up or turn too sharp or get hit with a rogue gust, it won't tip stall or go into a death spiral.

I would have had some really cool flight video out over the ocean and beach but my Mobius no longer holds a charge.
Jun 25, 2018, 04:54 PM
IMO ( In My Opinion ) →
balsa or carbon's Avatar
Quote:
Originally Posted by SirRexAlot
Just in case anyone thought that the SSD is a novelty and can't do anything useful, here's my long distance FPV rig. It's a 40" version with 433 MHz running iNav. I got a personal best distance of 2.6 kilometers from launchpoint this weekend. It's flies 60 kph pulling 7 amps on 3s with a 2217 1400kv motor and a 7x6 prop.

The SSD is actually a fantastic FPV rig because of its stall characteristics. If you get twisted up or turn too sharp or get hit with a rogue gust, it won't tip stall or go into a death spiral.

I would have had some really cool flight video out over the ocean and beach but my Mobius no longer holds a charge.
Nice !
Jul 03, 2018, 01:11 PM
Out the Window
High Flyin''s Avatar
Quote:
Originally Posted by balsa or carbon
Looks good !

Flying video if possible !
Here is video of the maiden flight of my 40" simple delta. It is not pretty as it ends with a crash, but not as bad as it looks....it will fly again.

I liked the way it was flying before the unintended contact with the earth!

Does the vertical tail look about the right size?

Maiden Flilght of XL Simple Delta (1 min 31 sec)
Jul 03, 2018, 01:35 PM
IMO ( In My Opinion ) →
balsa or carbon's Avatar
Looks like it flew well , thanks for posting the video !

The fin is the right size for easy cruising around , if that's what you intend to do with your giant SSD .
Jul 03, 2018, 02:20 PM
Registered User
That's a beauty, especially for 4th of July!

For added fun, tape a couple ribbons out at the trailing edge.
Jul 03, 2018, 04:15 PM
IMO ( In My Opinion ) →
balsa or carbon's Avatar
Quote:
Originally Posted by SirRexAlot
That's a beauty, especially for 4th of July!

For added fun, tape a couple ribbons out at the trailing edge.
Or an American flag taped to the vertical fin !
Jul 03, 2018, 07:55 PM
Out the Window
High Flyin''s Avatar
Quote:
Originally Posted by SirRexAlot
That's a beauty, especially for 4th of July!

For added fun, tape a couple ribbons out at the trailing edge.
That is what I intended to do before the crash. It may have the streamers on Sunday. I made up several red, white & blue 30 ft. crepe paper streamers for my and friends. They do look great for the 4th! Here is a video of my friend flying his Stryker with twin streamers that I made up:

4th of July Flying (4 min 13 sec)


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