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This large size pattern plane is made from EPO foam and has a winspan of 1.38m!
The Rainbow takes around 2hrs to complete and is easy to assemble and repair thanks to it's simple design and strong EPO construction. A very nicely scaled and finished R/C model; main wings are reinforced with alloy tube during mould injection for a strong slop-free fit, the landing gear is strong yet light, also servo operated retractable landing gear can be installed, battery access is very easy, tail section is light and provides plenty of control as do the full size ailerons. This is a true pattern style sport EPO foamie with a solid design that can still handle small crashes without breaking.
Firstly this plane is more built than firenza eg this has 4 magnets to hold the nose cover on also it has magnets for canopy. Secondly this plane has the carbon spars in the tail embedded in the foam at manu not stuck on the surface afterwards and finally this plane has metal horns not plastic ones HTH
Well Unleaded I find it hard to believe this is a FOAMY. The listing says Motor: 42-XX Brushless out runner 650~1000kv, so your 800Kv motor on 4s should be plenty. In fact even on 3s it would fly but not as nicely, as on 4s. Tare!
Hi, Anyone fitted air retracts, it looks as if, with a little carbon strengthening in the wing, could be done, I have two or three sets, not a fan of electric retracts, plus, I expect the fixed U/C mounting would need "work"
Thanks
klisura Hobby King recommend Foam CA glue. I find hot (not too hot) glue works. PVA is a bit heavy but if you have time works well for little bits. I hope this helps
Glue stick is not good.
You have to CA for EPO, since it gives the best results. Also you have to pay attentiot *not* to use epoxy because it gives good fake bonding.
Elapor is kind of EPO and Multiplex recommends zacky glue which is actually CA. If you find this helpful, thumbs up.
Jorgen, try instead the NTM 40-48 650Kv. It's a much better motor than the Turnigy SK. More powerful magnets, better bearings, better quality control, higher power. A better motor overall. 14x7 on 4 cells, 13x8 on 5 cells.
Oh yes, and if you order the NTM motor, order the proper NTM accessory pack for it too, because with the Rainbow, the motor mounts with the shaft pointing backwards.
CG position is 20mm from the trailing edge (unusual). You can find the manual in electronic form somewhere on the internet.
Wings are removable and there are two slots to lock the wings in position but without supplied pieces. You can use icecream sticks for it *)
Yeah G spot ,,i found Mine yes ,lol as for the paddle pop sticks ,,i just used the plate that came for the steel landing gear ,its not used if you use The retracts ,, but freeze the cheap retract gear ,and fix with Carbon rod bits ,, use plenty of heat glue while doing that. Looks alot nicer with Landing gear ,,,, retracts ,,frozen ,, and its realy neet ,, im thinking of cutting a few inches of the whole length .and Making a Shorter cockpit area , removing a few inches from behind the cab cut in half ,than rejoin and fiber tape the whole body ,as i would do any way.,but to reduce its length would Make for a nice stunt Plane shape easy enough ,,as i did snap 1 MX accidentally and You not see the difference now rejoined , but hit a tree somehow hit ,breaking in 2 bits clean .. but easy to join with Heat Glue ..and Fiber Tape..
Jetdave lots of great advice above very cool. Have a look at the FILES tab. There is """HK manual Rainbow A-388 pg1 HK manual Rainbow_B pg2 HK manual Rainbow_B pg3 HK manual Rainbow_B pg4""""" in the tab for download. I hope this helps.
BrianB192, a lot of us slope flyers are using 5mm clear laminating film to strengthen our foamies. Fiber tape is no longer needed, and you can apply it over the graphics. Use a covering iron at Ultracote/Oracover temps. You know when it's adhered when the laminating film goes from frosted to clear. Note that the only way to get laminating film to stretch over a compound curve is to heat that portion of the film with a heat gun and THEN apply it to the foam.
Gerryblue lots of great advice above very cool. Have a look at the FILES tab. There is """HK manual Rainbow A-388 pg1 HK manual Rainbow_B pg2 HK manual Rainbow_B pg3 HK manual Rainbow_B pg4""""" in the tab for download. I hope this helps.
Baz AUS
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i got this plane and bought a 100 amp hk speed controler and plan on using 2 2200mah batts and TGY AerodriveXp 42 SK Series 42-50 650Kv motor. my question is my S/C has no UBEC so when i order a UBEC what Size BATTERY will i need to run the UBEC.I have never bought a S/C without a UBec B4.Any help would be greatly appreciated. Baz
It depends on how you want to do it, look at the max voltage of the UBEC's, for this model, I would go with one that will take power from your flight battery rather than the type designed to run off seperate 2s Lipo, as this will add more weight for little benefit as the model is only 4 servo.
I FROZE THE RETRACTS ,As i got the cheap set , Now frozen ,Its Great strong landing gear ,as the fiber rods i placed around the landing gear add to its side way strength .and no flex just good strong fixing ,is all we want ,, so yes i use Mine daily with a 100 amp behind a 800watt turnigy motor .Very good but cheap setup easy to make stronger ,...
I haven't heard of anyone flying a foam plane like this on a glow engine. Besides, electric is the way to go, and I've flown my fair share of glow planes.
strange problem for 2 pepole that buy it when u push up it turning left and for my frind it turning right please does anyone know how to handle with this problem that plane have strange flying moves what is wrong
AN excellent plane that can easily handle 6s. However, be very careful with the magnets that hold the canopy in place, although they look strong, you will lose them in flight.... guess how I know! I am ordering this second plane just because of this. For this one will install a latch plus additional magnets in the middle of the canopy. Hopefully this will work without having to resort to tape each time.
superbe avion d'une qualite remarquable. jamais vu un prix aussi competitif. des qualite de vols excellentes. j'adore la voltige extreme et le F3A cet avion passe tout sans vice une fois bien regle. je le prete egalement a mon grand pere qui adore cette securite de vol
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Overall Rating
____AK
65 likes
Value
UNRATED
Quality
UNRATED
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I've purchased this plane almost year ago from another store before it was available on hobbyking.
I have to say that its very, very good. Flying like real F3A pattern ship.
Its almost exact copy of the Kyosho Oxalys.
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Overall Rating
Bones [*]
10 likes
Value
UNRATED
Quality
UNRATED
Like it?
i got this plane and bought a 100 amp hk speed controler and plan on using 2 2200mah batts and TGY AerodriveXp 42 SK Series 42-50 650Kv motor. my question is my S/C has no UBEC so when i order a UBEC what Size BATTERY will i need to run the UBEC.I have never bought a S/C without a UBec B4.Any help would be greatly appreciated. Baz
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