Ashley Hunt

Thanks for all the replies. It’s been really useful.

While on the subject of props then, I also have a Puppeteer which has an old Laser .61 engine in it. I’ve been running that on a 12X7 prop but I’ve never felt completely happy with the way the model flies.

Wow, that turned out to be quite a lot of information. Thanks to everyone for your input. I think I’ll move the OS40 on and go just a little bigger to give myself a bit of a margin. All the information on props was great, that’s always been a bit of a black art for me and just buying different sizes to see what happens can get expensive, so thanks.

Matt, when you say a decent diameter, low pitch, wide bladed prop, what sort of size are you suggesting ?

Hi, I’m about to start building an SE5A and when I bought the kit I also bought an OS FS40 Surpass for it. I’m now thinking that the OS engine might be marginal in terms of power, especially since I don’t seem to be able to build a light model. Has anyone any experience of a Flair SE5A with a 40 size four stroke ?

We’ve had quite a few suggestions now on possible solutions to the lost model problem and yes I agree totally with the view that anything powered by the receiver battery is probably not going to be of any use because of the potential for the battery to become separated from the model on impact. The Tile Pro Bluetooth Tracker has its own user changeable battery, battery lasts about a year, has a Bluetooth range of 400ft, has a 128 decibel sounder, weighs 12 grams and is 42mm x 42mm x 6.5mm. If you check around they cost about £20. To be honest I reckon it sounds as good as any other suggestion and therefore worth a try.

That would be great. Thanks

Has anyone tried using a Bluetooth tracker in a model ? I recently lost a model in an area of gorse and bracken and in theory a tracker would have given me a much better chance of finding it. The Tile Mate has an advertised range of 200ft and weighs 6 grams and it’s slightly bigger brother the Tile Pro 400ft and 12grams. On the face of it either of these would be suitable for fitting in a model but has anyone tried it ?

With the battery as far back as I could reasonably get it and the CG set at 70mm it flew beautifully. Thanks for the help Ashley

Hi Steve I was thinking along the same sort of lines so I’ve set it at 70mm. I’ll let you know how it goes when we eventually get some reasonable flying weather. Thanks for your help.. Ashley

Thanks Steve, that would be really useful.

Hi, I need help with trying to set the correct CG for a new Grand Tundra. The HobbyKing online instructions say 75mm to 80mm but two online reviews say 60mm. Ive tried to set it up at 75mm but even with the battery as far back as it will go I’d still have to add weight at the tail, which doesn’t seem right. Has anyone else had this problem ? Thanks Ashley

In answer to Nigel R The model is a Top Flite P51 Mustang. 60” wingspan, Irvine .61 powered.

That’s all really useful information. Thanks very much.

Does anyone have a view on general purpose servos. I need 5 for a new model that I’m building. There are still a few reputable shops around selling the Futaba S148 servos which was in my mind was a good basic servo. Does the Hitec HS 311 compare favourably, or is there anything else on the market in the same bracket ? Thanks Ashley