Flight test Versa foam wing

[Bonzo Moon]

Hi all,I'm building an FT Versa foam board wing. 2 Sheets of board a fiver from Hobby craft. Wing weight without battery or motor etc is 300 gms. I just wondered if anyone has had success with this design as a pusher without adding loads of weight at the nose to get CoG right? I'm going to mount a camera and may use it for FPV but from what I've read it'

s still liable to be very tail heavy without adding loads of weight up front.

I'm planning on using one of these motors 47 gms , motor as I have them on two other models and with a 7 x 5e and 3s lipo they have loads of pull.

I wondered about cutting a slot in the wing so as to mount to motor further forward. That would help?

wing  https://www.modelflying.co.uk/albums/member_photo.asp?a=52211&p=848502

Edited By Bonzo Moon on 12/01/2020 12:44:58

[Bonzo Moon]

**LINK**

[Dad_flyer]

I use Hobbycraft foam board for FT designs. It is heavier than the FT board, and there is always more board area behind the CG than in front. This will always mean the model needs more nose weight, and if the wing is reported to need weight anyway that is exacerbated. I have no experience of flying wings, so I cannot comment about the type of motor or the position for flying characteristics.

As you clearly have the wing basically made up, try balancing it with the weight of the motor and battery in the expected places.

[Bonzo Moon]

Hi Dad Flyer, I use Hobbycraft foam too. Pretty strong but heavy as you say. I just mocked it up as the motor I plan to use arrived today. The wing naked weighs 300 gms but with motor aft and a lightweight camera and 3s 1000 mA battery right up front it'll still need 75 gms on the nose for OK CoG. Apart from cutting a slot so I can mount the motor a bit further forward I think it'll have to be tractor power.