Kiszállítás United Kingdom , USD
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Laurie 29/09/2015
I took a chance on this, because I didn't think there was enough information in the description. I ordered the C version, with the 8x20mm motor, but unfortunately what arrived today was the A version, with 7x16mm motor, so the figures below are for the A version. I haven't powered it up yet, but I think it will be very suitable for an indoor slow flyer of the Vapor, Ember, Cub etc. style. With the 8x20mm motor probably something a bit bigger and/or faster. The prop has a diameter of 138mm, but no pitch marked. By comparing it with other props of known pitch I am guessing it is a 138x63 mm or 5425 inches. It came badly out of balance, but by taking tiny shavings off the heavy blade with a modelling knife, I eventually got it to balance perfectly. It is very light at 1.24g, and I don't think it would withstand a hard impact, but ideal for a slow flyer. The description says it has a .8mm hole, but when I measured the prop shaft, it is 1mm diameter. I tried pushing it into the prop and it is a very tight fit, but does go in. The gearbox is the usual two brass bush type, with plastic 9 tooth pinion and gear. I didn't count the teeth on the gear, but I'm guessing there are 54 giving a 6:1 ratio. The prop shaft is 27mm long with one end knurled for a length of about 8mm. I think the knurled end goes into the plastic nut provided, with the smooth end going into the prop, so you can remove and replace a prop without much trouble. Weight of the gearbox is 1.29g and of the motor 2.61g. Motor shaft is 1mm diameter. There is a square hole in the gearbox that I think is intended for mounting on the end of a square section carbon fibre rod, such as you might use for the fuselage of a very light slow flyer of the Vapor type. It looks as though it is a 2x2mm hole. It would probably be possible to mount the motor/gearbox other ways, e.g. with tiny cable ties or with glue. The proof will be in how it runs, but at this stage I think it's a very light and economical power plant for an indoor flyer, with flexibility in the choice of motor according to your intended use.
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Hozzászólások (5)
Beküldés
  • Banggood Dear customer,we apologize for any inconvenience to you,about your product problem, our customer service have contacted you, we would give you a solution in time.

    24/05/2024
  • FranciscoB Great review, thank you for your time.

    Válasz 07/10/2015
  • Laurie I've checked the item description again, and I've realised that it is I, and not Banggood, that has got it wrong. The A version is the 8x20mm motor, and the C version is the 7x16mm motor. Please forgive me, Banggood, I've done you an injustice. You sent the correct item.

    Válasz 21/10/2015
  • One of the best reviews I ever read on a shopping site. Great job.

    Válasz 11/11/2015
  • Laurie When I assembled it, I realised that the knurled end of the shaft is where you put the gear, so it will never slip,so at the propeller end, not the rear end.

    Válasz 02/12/2015
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