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Jesus Cardin

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Posts posted by Jesus Cardin

    Seagull Hurricane Laser

    in Warbird kits

    Posted

    Jut one question: Are you keeping with the instruction manual C.G.?

    I have not read the entire thread but I know well the model from a good friend here in Spain. When he maidened his Hurricane he found it to be too sensitive on elevator just from the take off and, in fact, he damaged the model trying to land it!

    He asked me to check the manual C.G. and propose other postion if I found it wrong. What I discovered is Seagull C.G. is calculated at 33% MAC, which is common to my own Seagull models (Gipsy Moth and Bucker Jungmeister) and, which for me is too far back for scale models maidens.

    In my own models I switched to 25% and only the on the sweet Moth I have finnally left it at 28% but seeing your problems with your Hurricanes I strongly suggest trying with a 25% MAC C.G . for your next flights.

    I do not know if I keep my calculations on the Seagull Hurricane C.G. but I will check and, if so, I will publish them here for your reference.

    OS FSR engines

    in IC Engines

    Posted

    I also own an OS .40 FSR ABC with liner flaked, althought it is a 40 years old engine and passed through 3 Omega model planes (old F3A aerobatic trainer), 2 Embraer Tucanos (semiscale model), a RCM&E Gerald Curd´s Bucker Jungmeister and an a Jack Stafford Ercoupe! So I can´t complain about engine longetivity.

    I, like "FlyinBrian", also believed that the liner flaking problem was far more recent, from the mid 90´s FX models but it seems clear now that it comes from some years before!

    Edited By Jesus Cardin on 01/02/2020 20:47:03

    Peel Ply Issues

    in Building from Traditional Kits and Plans

    Posted

    Posted by Alan Gorham_ on 30/01/2020 10:13:40:

    After I remove the Peel Ply I just rub the "nobbly" finish flat with 60 or 80 grade Ali Oxide paper and then brush on a thick coat of high build primer and start from there.

    Alan could you, please, explain which high build primer do you apply by brush?

    I only know of 2 compounds sets intended for professional automotive bodywork and which are for spray painting. I sincerely do not know if they could be applied successfully by brush!

    Thanks.

    Futaba T14SG chat

    in Futaba

    Posted

    Michael, the 617 is a FASST 7channel receiver and with this modulation B.F/S is only available for channel 3 (as well as for nornal F/S, while other channels keep on last position received, this is in "Hold" mode).

    For FASST receivers you are not able of programming the B.F/S voltage, so the default 3,8V applies.

    Sure going the Ni-MH route solves the problem, but go for no less than 1.200-1.500mAh for 4-5 normal servos and no less than 2.000 if your models mount more than 5 units.

    Futaba T14SG chat

    in Futaba

    Posted

    Michael, as you describe the problem it is for sure a Battery Fail Safe activation (no throttle control but normal on the other channels).

    Default B.F/S voltage in Futaba receivers is 3,8V and in 14SG you ONLY may change that on FASSTest receivers.

    For changing the B.F/S voltage in FASSTest receivers you have to go to "SYSTEM" menu and just to the right of the "LINK" option you will find the B.F/S value. If you change the default 3,8V value, you will have to link again the receiver to refresh this on the receiver memory.

    Futaba suggests the following safety voltage values:
    • 4 cells NiCd or NiMH (Normal: 4.8v) = 3.8 v
    • 2 cells LiFe (Normal: 6.6 v) = 6.0 - 6.2 v
    • 2 cells LiPo (Normal: 7.4 v) = 7.2 - 7.4 v

    Anyway with a BEC there is no logic on programming a B.F/S as the BEC shoud safely power the receiver and servos even after cutting the motor if the power battery goes too low. If you are getting B.F/S from a BEC unit, sure it is short for the power and number of servos you are using in your model. Be careful!

    Edited By Jesus Cardin on 22/01/2020 16:33:58

    Forum members' new models: Let's see them.

    in All Things Model Flying

    Posted

    Although not purely "new" (it was built by my uncle Pepe Cardin during 2010-2011), I have been tasked lately to overhaul, repair some damages and test fly this Berkley Custom Privateer, also known as McGovern´s Monster.

    Model is entirely built in wood and covered with white and orange silk. Power is from an AXI brushless outrunner motor and a 6S 5.000mAh Li-Po battery. RC equipment is all Futaba with control from a Fasst T7C. It has no more than 30-35 flights although it has never been flown from water yet.

    img_7712.jpg

    img_7713.jpg

    Forum members' new models: Let's see them.

    in All Things Model Flying

    Posted

    Saved from the garbage bin some years ago, it is the control line Bravo model, the last of the type produced by the Spanish firm Modelhob during early 90s. The original kit box contained the sheet balsa model together with adhesive decal sheets, glue, a Cipolla 1,5 glow engine, control cables and handle, a small fuel bottle and even a dry cell for glow power. I found it in the garbage bind of the manufacturer when they gave up model kit production some 4-5 years ago. This Bravo model was broken and needed a new elevator as well as an engine plus flying accessories. After restoration, the model was successfully maidened this last June in a C/L meeting in Madrid (Spain).pict0129.jpg

    pict0121.jpg

    Edited By Jesus Cardin on 12/01/2020 15:11:13

    ESC overheating.

    in ESCs (Speed Controllers)

    Posted

    The only ESC I have burned in my life was checking the turning direction of a motor without a propeller and at low speed.

    It was with a proven set and the ESC smoked at once, without a second to cut!

    Edited By Jesus Cardin on 08/01/2020 16:21:01

    Futaba type transmitter charging plug

    in Batteries and Chargers

    Posted

    "gangster" is right!

    Futaba has 3 types of transmitter charging connectors depending on battery nominal voltage: one for 9,6V Ni-Cd/MH, one for 7,2V Ni-MH and the last, the thinner one, for 6,0V Ni-MH/6,6Li-Fe/7,4V Li-Po.

    Then 18MZ and 32MZ radios have particular charger connectors different to those mentioned above.

    Hobbyking

    in R/C Retailers / Distributors / Manufacturers

    Posted

    Ian Hand from Hobby King says "We are living in a mad world right now....." A mad world they greatly helped to create, he forgot to mention.

    They may be improving the website and trying their best for recovering the stock levels but, be sure, Hobby King will never be again what they used to be: they have altered so much the model market at the same time that flying restrictions make our hobby so little attractive that margins now are not interesting even for Hobby King!

    At this moment, most probably, they are studying on reducing costs and looking for the product lines from which they get higher benefits: all other ranges we will to say "Good Bye!"

    All our yesterdays - our old pics

    in All Things Model Flying

    Posted

    And now for my first RC model: the 2 channels glider "Palanca" ("Stick" in English), a nickname as it was a simple box fuselage together with wings and tail for Modelhob´s Nemesis glider; it served as the prototype to check wing and tail incidences as well as control throws and was given to me while I together with my late father built together our first glow engine trainer. The model nose was a lamination of sheet lead adapted and screwed to the nose! Not to today safety standards, no, no!

    "Palanca" was controlled through a Multiplex Profi 35Mhz radio (which I still keep!) and just 2 servos. We always launched by Hi-Start as in the photo and the model was passed to a newcomer friend when I switched to more sophisticated gliders and planes.

    Photo is from 1980 and was taken also during my summer hollyday at the end of the High School on Isla Canela beach (Huelva, South Spain).

    Palanca.jpg

    All our yesterdays - our old pics

    in All Things Model Flying

    Posted

    After school years building and flying free flight gliders and rubber bands models, during High School I upgraded to C/L.

    Here during the 1979 summer hollydays together with my cousin Manolo and our sheet C/L trainers: mine a P-51 Mustang and his a classic model here in Spain, a Yeyito. Both from Spanish brand Modelhob and both powered by Zom 2,5cc diesel engines, also manufactured by Modelhob.

    C/L P-51.jpg

    Forum 2020 Mass Build discussion.

    in The 2020 Mini Jet Mass Build

    Posted

    Posted by Lima Hotel Foxtrot on 12/12/2019 22:04:19:
    Posted by Gary Clark 1 on 11/12/2019 19:27:41:

    This is a bit unusual if anyone thinks a twin would be good.

    Link

    Gary

     

    Love it, love everything about it! I may get the plan for my ever expanding list-to-make-for-sure-in-the-future-100%.

     

    Given that the winner will probably be a low-wing, single engine monoplane, how about the Druine Turbulent?

    Classic home-build, reasonably aerobatic, good large scale subject at a size that can easily fit in the car boot.

    I like the Druine Turbulent and even already have the plans from Dennis Bryant!

    Anyway in the idea of a easy build, affordable, appropriate for new pilots and attractive as a real plane but without the details of a scale model, what about a relatively simple old timer? Simple I said?.....then perhaps the Simplex should make a good mass build model!

    https://www.sarikhobbies.com/product/mag27-simplex-40

    You even have the possibility of going different sizes with this model, from small electric park flyer size to perhaps a larger 80" span powered by a classic OS 60 four stroke.

    Edited By Jesus Cardin on 13/12/2019 09:25:12

    Edited By Jesus Cardin on 13/12/2019 09:26:17

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