Official Freewing 64mm Lippisch P.15 Thread

[rifleman_btx]

When I seen the gear setup, that was the only thing I worried about.

[Hardway]

I have the landing gear for the LiP.15, but have not installed them yet.... I have them on the A-8 and F-105. Both are nose heavy with the gear (nose gear and servo)… They take off after a good run (on concrete) but I used all the up trim and then some back pressure to keep them flying. Had to add weight to the tail to make it all work out!! Expecting the LiP.15 to be the same...

[Bearcat]

So has anybody ordered the Landing gear yet or will I be the first person to try it?

[Arcangel]

I finally got the maiden flight in on my P-15, or as a friend of mine calls it " the Crazy Kraut. " Its been windy for the past month and for once, the wind was calm with a heavy over cast on the day I could be out flying.

) First hand launch was a bad throw on my part and she nosed in like a lawn dart. No damage but lots of soft silt down her throat.

) Second hand launch Failed and she took a belly landing. When I was cleaning out the dirt she ingested, I forgot to tighten up the battery strap and it slipped full forward on the second launch.

) Third launch is the charm, and she went like a bat out Hell. My god that critter is fast and she sounded soooo nice on the 12 blade fan setup. Test flight was run for 2 minutes at mostly half throttle and she landed with 50% left on the battery. :)

The flight reminded me of my DuraFly ME-163 Komet in that it was a scary kind of fun to fly her. The Lippy will definitely out roll the komet and she is every bit as fast. I started off with the dual rates at 60% and that seemed way too much for my taste but she was controllable.
After getting some commentary from the friends in the pits about her roll rates, my test pilot pointed her straight up, bumped the aileron DR to 100% and DRILLED it into the sky. His reaction to her was along the line of OMG followed by some sinister chuckling. The rest of the peeps were left in awe.

I was rather surprised to notice that the additional color I had put on her did not really help out that much in the flight, but in fact it only became beneficial on her final turn for landing and approach. The yellow became very effective for orientation during approach.
All in all, I am very happy with this plane and I plan to keep her in my car as the go to fun runner.

[kenelder]

Hello Everyone, I joined the ranks of happy P15 owners!! What a great jet, after flying it I may have to buy a couple of spares just in case. I have had several balsa Me-163 Komets and one scratch built balsa P15. Needless to say, this one flies a lot better than any of those. I have had great easy hand launches of mine. I've read on this thread that some are having difficulties with launching it, but I can't see why. I learned that it is really important to have the balance point on the money- nose heavy or tail heavy doesn't work so well with the tailless aircraft. For mine I just put the balance at the recommended point, then I did program a switch on my trans for takeoff to give it a little up trim. Maybe 1/16" or so. Each flight is just a simple full throttle toss at about a 30 deg angle up and it flies straight out. I am using 1000 and 1300 batteries so maybe that makes it easier to launch? In any case it flies great- at high speed it is smooth and stable. I did not see any climbing or diving at speed so I am not going to be making any changes to the duct like I've read in this thread. Mine will slow way down and doesn't lose stability so it is a pleasure to cruise around at low throttle. I see that it glides pretty well with power off, apparently due to the efficient airfoil used. My balsa Komets glided at a very steep angle, not like this one at all.

I also have a Durafly Me-163 and while it does fly nice, this P15 is a lot better. I have been taking the P15 every time I go flying, it has become a must have for me. If anyone is sitting on the fence, I highly recommend getting yourself a P15. And I suggest using 1000 or 1300 batteries to start with, lighter always flies better especially on first flights.

Thanks Motion for bringing this P15 to all of us!

[gboy]

Mine shipped....will build SOON,,,

[Ole-Timer]

I’ve been flying the crap outta mine lately. No gyro, got the hand toss down pat. Always room to stuff it in to the days load. Really fun bird.

[TiredIronGRB]

GREETINGS pilots...have been looking to order the P15. This discussion and video reviews are quite interesting, decided to put the P 15 ahead of a few other winged projects in the shop. Checked at Motion RC and,,...they are out of stock .
I use to fly the Multiplex Twister, and Diablo Trainer EDF...would like to pull the trigger on this Freewing, Any info on when they will be back in stock? Thanks so much,

Probably late May, this and the F-105 are two of my favorites right now.

BTW...welcome to Hobby Squawk!

[gboy]

GREETINGS pilots...have been looking to order the P15. This discussion and video reviews are quite interesting, decided to put the P 15 ahead of a few other winged projects in the shop. Checked at Motion RC and,,...they are out of stock .
I use to fly the Multiplex Twister, and Diablo Trainer EDF...would like to pull the trigger on this Freewing, Any info on when they will be back in stock? Thanks so much,

[Ole-Timer]

Flew mine again yesterday with 2200 3’s. Winds were not over 13mph but were shifting around a good bit. Hardest thing for me on this type airframe is the lack of rudder control. I’m just so used to the rudder being the primary way to line up on the landing strip. Fun little bird none the less. Repainted mine to the late war, loss of air superiority..., we’re now hiding everything in pine groves scheme.

[Radar-Guy]

Made two flights today, one with open and one with closed cheater holes (with some fabric tape on the inside of the ducting). According to the onboard GPS module, closing the cheater holes gives a 10% higher top speed (158 vs. 174 km/h). To improve the ducting, a wedge has been added to the blunt end at the joints and the round spars were given a simple 3DP fairing to achieve a teardrop shape.
Absolutely no bad tendencies during handlaunch at both flights. Stock fan, 3s 1400 Lipo.

[Alpha]

I like the yellow! Effective color blocking.

[Arcangel]

I decided to add some color to my P-15. { my eyes are not as good as they use to be and I am always being reminded how well the camo on these little planes actually work } :Nerd:
I tried to incorporate the markings from a couple of ME-109 and HE-162 squadrons but still keep her looking military and not too sporty.

The painting process went well but the tape peeled some of the blue off the bottom. I'll take her out for her maiden after I get a chance touch that up the missing paint and lay down some tape for the skid area.
Over all, I like her. Easy build, upgraded to a 12 blade fan and 65 amp ESC. I can now run a 4S system but will probably keep her as a 3S for flight performance.

[xviper]

but anyway it seems that Freewing manual is wrong...,

I hadn't even looked at that part but yes, it's wrong. I don't look at those drawings anymore as it's become instinctive what the control surfaces are supposed to do.

[ULTIMATETWO]

Tx so much for your help... that´s what I did and now it seems that works well... give up and both elevons goes up and vice versa, plus added the 5mm. up trim for launching and 1.5 mm. called.. but anyway it seems that Freewing manual is wrong..., by the way I added some surfrace details as panneling and a little ot much wheatering... plus some markings too not historical exactly but looks good, at least for me... will maiden next weekend... best regards. Manolo.

[Bearcat]

Hi buddies please need your help... P15 instructions and even programmed mix on Frsky Horus 10 show that for go up both elevons goes down and viceversa, for going down flying surfaces goes up... is that right?. never had before a flying wing..also the 1.5 neutral called want to say that surface control must to point up..?. regards for granted. Manolo.

It's called a deltawing - a flying wing has no vertical surface at all..

elevon setup is what you need but I don't know anything about the Frsky radios.
Spektrum radios have elevon and Elevon B settings..

[TiredIronGRB]

Hi buddies please need your help... P15 instructions and even programmed mix on Frsky Horus 10 show that for go up both elevons goes down and viceversa, for going down flying surfaces goes up... is that right?. never had before a flying wing..also the 1.5 neutral called want to say that surface control must to point up..?. regards for granted. Manolo.

Reverse the left elevon channel and see if that helps.

[ULTIMATETWO]

Hi buddies please need your help... P15 instructions and even programmed mix on Frsky Horus 10 show that for go up both elevons goes down and viceversa, for going down flying surfaces goes up... is that right?. never had before a flying wing..also the 1.5 neutral called want to say that surface control must to point up..?. regards for granted. Manolo.

[Bearcat]

Interesting and unusual model, my 1st thoughts were it's a Dh Swallow as the shape is almost the same and the Swallow appeared at the end of WW2. 3 were built and flown and one killed the test pilot.... no ejector seat! If you compared the two planes a repaint into grey/silver some RAF roundals and you have a Swallow...

I think you are on to something there

[Dennispsg]

Interesting and unusual model, my 1st thoughts were it's a Dh Swallow as the shape is almost the same and the Swallow appeared at the end of WW2. 3 were built and flown and one killed the test pilot.... no ejector seat! If you compared the two planes a repaint into grey/silver some RAF roundals and you have a Swallow...