Hob­by­zone/hori­zon Hobby Car­bon Cub S+ 1.3m

Earn your wings with this readyto-fly “Jeep with wings”

Electric Flight - - CONTENTS - By An­drew Grif­fith

Earn your wings with this ready-to-fly “Jeep with wings”

The Cubcrafters Car­bon Cub SS re­tains the clas­sic lines of the Piper Su­per Cub, but that is where the sim­i­lar­ity ends. The Car­bon Cub weighs in at al­most one-third of the original weight (250 pounds) and uses half the parts of a sim­i­larly equipped Su­per Cub. Its light weight com­bined with a 180hp Ti­tan en­gine make it a go-any­where fa­vorite of light-sport-air­craft pilots. I liken these flap-equipped, short-take­of­fand-land­ing Cubs as “Jeeps with wings.” I hap­pen to love both Cubs and Jeeps, so I was anx­ious to check out the new­est of­fer­ing from Hob­by­zone.

At first glance, the Car­bon Cub S+ might ap­pear to be noth­ing more than a new paint job on the Sport Cub that was re­leased a few years ago. Looks can be de­ceiv­ing, as the Car­bon Cub comes with an AS3X re­ceiver, which in­cor­po­rates both SAFE tech­nol­ogy and GPS for a new level of con­fi­dence and se­cu­rity while learn­ing to fly. The new yel­low-and-sil­ver paint job with black trim is pretty sharp, too.

I re­ceived the ready-to-fly (RTF) Car­bon Cub S+ for re­view, but it’s also avail­able as a Bindn-fly (BNF) Ba­sic. The RTF comes with nearly ev­ery­thing you need in one box. The BNF Ba­sic re­quires a DSMX trans­mit­ter, Lipo flight bat­tery, and charger.

The Car­bon Cub S+ is in­tended for begin­ner builders and pilots, and only min­i­mal fi­nal assembly is re­quired. That said, the Car­bon Cub in Expert mode is more than enough fun to put a smile on even the most sea­soned pi­lot’s face!

UNIQUE FEA­TURES

Ev­ery­thing you need for flight is in­cluded with the RTF ver­sion, with the ex­cep­tion of a Phillips screw­driver. You get a Spek­trum DXE trans­mit­ter, flight bat­tery, and a 12V car charger, along with a 110V power sup­ply for the charger and four AA bat­ter­ies for the trans­mit­ter.

The Cub uses the stan­dard flight con­trols (aileron, rud­der, el­e­va­tor, throt­tle) and two aux­il­iary chan­nels to con­trol the flight mode of the re­ceiver and to ac­ti­vate the GPS func­tions. You have the op­tion to in­stall flaps, and the parts re­quired are in­cluded ex­cept for the op­tional flap servo. All func­tions of the DXE are spo­ken for, so adding flaps would re­quire at least a 7-chan­nel trans­mit­ter.

The Car­bon Cub is equipped with fixed land­ing gear. It comes with tun­dra-style tires and wire land­ing gear with snap-on fair­ings. Also in­cluded in the kit are the struts, screws, and straps re­quired to con­vert the Car­bon Cub to floats; you only need to pur­chase the Hob­by­zone float set (HBZ7390) and you are off to the pond.

The ser­vos, re­ceiver, GPS mod­ule, mo­tor, prop, and speed con­trol are all in­stalled at the fac­tory. A hard­ware bag has a couple of smaller bags that are sorted and marked ac­cord­ing to the assembly step. Once nice touch is that ev­ery screw and wheel col­lar that you need in­cludes a spare.

The SAFE+ re­ceiver has three modes that give you pro­gres­sively more con­trol with the flick of a switch. Begin­ner mode will let you auto-level when the sticks are re­leased and al­lows only mild con­trol author­ity. In­ter­me­di­ate mode al­lows in­creased con­trol and self-lev­el­ing when be­low 50 feet. Nei­ther Begin­ner or In­ter­me­di­ate mode will per­form aer­o­bat­ics or let you fly in­verted. Ex­pe­ri­enced mode still gives you the sta­bil­ity of fly­ing with AS3X but with full aer­o­batic con­trol and no pitch or roll lim­i­ta­tions. For panic re­cov­ery, just flip the flight mode switch to Begin­ner and let go of the sticks.

The neat­est new fea­ture, though, of the Car­bon Cub is un­doubt­edly the GPS ca­pa­bil­ity. The Cub doesn’t fly way­points like a drone, but it will re­mem­ber where it took off and, at the push of a but­ton, will re­turn and or­bit that spot at a 50-foot al­ti­tude. You can set pa­ram­e­ters us­ing

the trans­mit­ter sticks, which set a max­i­mum dis­tance from the take­off point, and if the Cub reaches that dis­tance, it will turn around and come back; you can even ac­ti­vate an auto-land func­tion.

IN THE AIR

The Car­bon Cub S+ han­dled well on our paved run­way, and the bush wheels make op­er­a­tions on short grass a snap. Begin­ner pilots will ap­pre­ci­ate the abil­ity to pro­gres­sively learn to con­trol the Cub with the se­cu­rity of au­tolevel­ing or, at the flip of a switch, re­turn to the take­off spot. Sev­eral ex­pe­ri­enced pilots took the Cub for a spin in Expert mode and agreed that it is both docile yet very aer­o­batic, hold­ing knifeedge or in­verted the length of the run­way.

GEN­ERAL FLIGHT PER­FOR­MANCE

Sta­bil­ity: This air­frame flies well with a reg­u­lar re­ceiver, and with the sta­bi­lized re­ceiver, it’s pretty much rock-solid. When it flew past me in the wind, I could hear the ser­vos work­ing to keep the Cub level. Track­ing: Even in Expert mode with the AS3X work­ing, the Car­bon Cub goes right where you point it. Aer­o­bat­ics: The Car­bon Cub won’t even roll in­verted in Begin­ner or In­ter­me­di­ate mode, but flip the switch to Expert, and it’s a blast to fly. In­verted, knife-edge, loops, rolls, spins—it does any­thing you’d ex­pect from a Cub. Glide and stall per­for­mance: The Car­bon Cub is dif­fi­cult to stall, and when it does, it hap­pens at nearly zero air­speed. Re­cov­ery re­quires adding power and fly­ing away. The only thing hurt­ing glide per­for­mance is the big tun­dra tires, but even with them, you have plenty of time if you hap­pen to lose power.

There are very few parts to as­sem­ble, and Hob­by­zone pro­vides the struts for fixed gear as well as the proper struts for the op­tional float kit.

The pro­vided vortex gen­er­a­tors are at­tached with dou­ble-sided tape to the top of the wing. These are used on both full-scale and model air­foils to pre­vent sep­a­ra­tion of the air­flow over the wing to make the air­foil ef­fi­cient at low speeds.

The bat­tery com­part­ment is large enough to ac­com­mo­date a va­ri­ety of bat­tery ca­pac­i­ties, and there’s room to move the bat­tery. An ex­ten­sion to the bind port is also pro­vided, so you don’t have to re­move the wings if you need to re­bind the re­ceiver.

Newspapers in English

Newspapers from USA

© PressReader. All rights reserved.