I was looking at the motors on my B26 and the motors have Detrum stamped on them not Tomcat. Are these motors the same with a different name stamped on them?
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"Detrum" is the house brand for Dynam. Their motors have always had this brand on them as far as all my Dynam products I currently own. Have no idea what "Tomcat" is.Comment
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Dynam was supposedly switching over from the Detrum label of motors to the better grade Tomcats motors that Motion is now carrying.
It appears that has not happened yet because there isn't a 3512-650kV Tomcat motor listed on Motions Motors Collection page of Tomcat motors:
It appears that Motion should/needs to update their product page overview for the Marauder and correct the listing of the product so as not to mislead buyers with improper nomenclature.
An excerpt from that overview:
"Power is provided by two Tomcat 3512-650kV brushless motors for satisfying sport scale performance. The two Skylord 40A ESCs are mounted behind each motor for ideal cooling and the counter-rotating 10.5x8 propellers enhance the scale fidelity of the aircraft."
The actual motor listed in the spare parts tab of the Marauder product page is the Detrum:
Warbird Charlie
HSD Skyraider FlightLine OV-10 FMS 1400: P-40B, P-51, F4U, F6F, T-28, P-40E, Pitts, 1700 F4U & F7F, FOX glider Freewing A-6, T-33, P-51 Dynam ME-262, Waco TF Giant P-47; ESM F7F-3 LX PBJ-1 EFL CZ T-28, C-150, 1500 P-51 & FW-190Comment
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I seriously doubt there is any difference between Tomcat or Detrum. Private label product for Motion. Like Lemon receivers.Don't just fly--WREAK HAVOC!!!Comment
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Then your doubts are in serious error. Detrum has never even come close to making those larger motors that Tomcat makes.Originally posted by quitcherbitchen View Post
Detrum has never even made a motor that is as large as the FMS 4250-580kV.
Look at the bottom of this referenced page of Tomcats that MRC is going to carry. Some rather large monsters there and so they definitely aren't Detrum private re-labels for Motion.
Warbird Charlie
HSD Skyraider FlightLine OV-10 FMS 1400: P-40B, P-51, F4U, F6F, T-28, P-40E, Pitts, 1700 F4U & F7F, FOX glider Freewing A-6, T-33, P-51 Dynam ME-262, Waco TF Giant P-47; ESM F7F-3 LX PBJ-1 EFL CZ T-28, C-150, 1500 P-51 & FW-190Comment
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The Bi Fold doors are proving to be difficult to replicate. Making the doors was the easy part. How to make the mechanism and still have clearance for all the ordinance is a whole other problem. The main problem is clearance. Also, I would need the travel to be quite large to make the doors open wide enough to let the bombs out. There isn't much room between the bombs and the bulkhead. Even if I mount the servos on the other side of the bulkhead, I will still have trouble I think with the complexity involved and worry about them jamming. The doors will need a cam system and that is all friction.Don't just fly--WREAK HAVOC!!!Comment
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I would strongly suggest gluing the nacelle to the wing in front as both of mine flexed down too easily, thus twisting the wing. The resulting flex is pretty hard on props too.
David.Comment
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I also found it complex and time consuming. If anyone can do it Adam, it is you!Originally posted by quitcherbitchen View Post
BobComment
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Tomcat motors are carried by Grayson Hobbies, they were the one who first released the you tube unboxing and flight review of the Dynam B26Originally posted by OV10 View Post
Then your doubts are in serious error. Detrum has never even come close to making those larger motors that Tomcat makes.
Detrum has never even made a motor that is as large as the FMS 4250-580kV.
Look at the bottom of this referenced page of Tomcats that MRC is going to carry. Some rather large monsters there and so they definitely aren't Detrum private re-labels for Motion.
http://graysonhobby.com/drone-airpla...ss-motors.htmlComment
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David please elaborate on what exactly did you glue. I am having a hard time seeing what flexed. ThanksOriginally posted by MIB66 View PostDon't just fly--WREAK HAVOC!!!Comment
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I am working on plan B of the bi fold doors. Using a spring to fold back the outer door or the door closest to the middle of the plane and then using a servo in the middle of the inner door to activate. Similar servo mount to what you did, just that the doors will fold on opening. It may not work, but I will try and mock one up.Originally posted by borntoolate View PostDon't just fly--WREAK HAVOC!!!Comment
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Quit,
I glued the seam where the nacelle joins the front of the wing. Mine was loose and allowed the nacelle and motors to dip down under stress resulting in a twist of the wing. I used thin CA and kicker to fix it. Hopefully that make clarifies.
DavidComment
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Yes that helps, thanks David. Mine is not loose, but good to know.Don't just fly--WREAK HAVOC!!!Comment
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Well I balanced my B26 last night I set it at 65mm with a slight nose down attitude. I hope to fly it next week if the weather cooperates. Will post a flight report on how it flys.Comment
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Give it 2 mm of up elevator if you havent. I had barely 1mm up on maiden and had to madly click nearly all of my available up trim. It flies great,lands easy. I use full flaps on landing and scale,gentle landings are easy to pull off(to avoid the bouncies dont come in "hot"). Flies at half throttle. I've bumped my timer from 6 to 10 min. CHL 4000 40c.
Still flying P.15, avanti(#2), mig 21, yak 130 70mm(#2), f35, f9f panther, a10 64mm, F8 crusader/ PA ultimate amr /HK skipper, durafly dh vampire, p 51,spit mk24, corsair, flybeam/ BH f86 50mm, deltawing 50mm/ HH su 26 mm,umx pitts,umx sbach, blade nano cp s,blade 450x, inductrix 200, inductrix pro, umx yak 54,umx f27 fpv/ electrifly 4s L39/ flyzone beaver/ volantix asw 28, /dynam B26
RIP.. roc hobby waco,strega #2(you will be missed), Fw 90mm eurofighter.Comment
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Looks like your getting the same performance I am, it's a blast!Comment
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Had the same issue with mine. I just dripped some CA into the joint between the nacelle and the wing, clamping the two at the same time. This made a huge difference in the flexing.I also added Ca glue to the flap hinges, all but one where loose and would wiggle with finger pressure.Originally posted by MIB66 View PostLast edited by handyman220; Sep 15, 2017, 10:08 AM. Reason: Flap hinges needed glue also as someone else postedComment
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Well I've installed my old gyro stabilizer in the B26. It needed a new home and this being a bomber I couldn't think of a better place for it. It's one of the istone acro units. All the control directions checked out. So now it's just a test flight away from go no go. Just glad it has the capability to turn off it it doesn't want to play nice. But all in all the unit seems to be good to go at this pointComment
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My first 12 flights were without a gyro. Its not a airplane that really needs one but i repurposed an a3l from my "RIP"-38 (god rest your soul) and it takes a 10-15 mph wind without the wing rock it had before. (Rifelman...i am doing your stab mod this weekend. Thanks for the ground work. 2mm up at TE of stab?)Still flying P.15, avanti(#2), mig 21, yak 130 70mm(#2), f35, f9f panther, a10 64mm, F8 crusader/ PA ultimate amr /HK skipper, durafly dh vampire, p 51,spit mk24, corsair, flybeam/ BH f86 50mm, deltawing 50mm/ HH su 26 mm,umx pitts,umx sbach, blade nano cp s,blade 450x, inductrix 200, inductrix pro, umx yak 54,umx f27 fpv/ electrifly 4s L39/ flyzone beaver/ volantix asw 28, /dynam B26
RIP.. roc hobby waco,strega #2(you will be missed), Fw 90mm eurofighter.Comment
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Rgr that, around 1/8 inch should do that's around 2-3 mmComment
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