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Dec 24, 2019, 06:22 PM
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I've tried the lamenating the curved foam wing pieces together for a stronger stiffer wing, if this first one works I'm going to try a semisymetrical wing for a foam version of the falcon and maybe the ugly stick
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Feb 02, 2020, 03:50 PM
Registered User

Servos for photon


What size servos do I need for the elevator and rudder. I have the little blue Hitec servos which are 9 ounces and would like to use them. Next size up is the Hitec 81 which are 16 ounces.
Also, what servos for the ailerons.
Feb 03, 2020, 10:08 AM
Registered User
All Experimental Airlines planes use 9g servos.
Feb 26, 2020, 03:18 AM
Registered User
Just trying not to reinvent the wheel, but I’m having difficulty with mechanical stability of building long thin (one layer of DTFB tapered down to a fine edge) ailerons for my DTFB DLG. So far I’ve tried capping the top side of the DTFB aileron with 1/20” sheet balsa, which helped stiffen the aileron temporarily, but there is now warps in the aileron. I am thinking of trying covering the DTFB (paper removed) aileron with 1.5oz glass cloth or paper with either epoxy or polycrylic or diluted white glue. What do you all think? I’d like to minimize my experimentations if possible. Any proven simpler ways to make ‘stiff, thin, light weight’ ailerons out of DTFB?
Feb 26, 2020, 04:49 PM
Registered User
no
if you want a stiffer aileron goto elmers foam I use it when I want a stiffer stronger part, the weight isn't that different,
I lamaneted pieces of dtf together it worked well, but I've found that thge dtf will hold a wing curve well enough without help, so it was addes weight and stiffness, I'm currentle looking into a small ugly stick to have some fun with on the curved foam process
Mar 02, 2020, 06:29 PM
Registered User

Photon Thrust Angle


I've just completed a Photon and the maiden was not successful. The motor was straight on with no right thrust or down angle.

How are any of you mounting the motor as far as right and down thrust?

Thanks.
Mar 05, 2020, 08:21 AM
Jack
jackerbes's Avatar
Quote:
Originally Posted by tomlogan1
I've just completed a Photon and the maiden was not successful. The motor was straight on with no right thrust or down angle.

How are any of you mounting the motor as far as right and down thrust?

Thanks.
I always build firewalls to be square to or at lright angle to the fuselage line and when I mount the motor I add small flat washers between the motor mounting legs and the firewall at the top to tip the motor down and on the right side to tip it to the right. It only takes 2 or 3 washers to do that and then I add washers as necessary to fill any gaps between the other motor mounting legs and the firewall.

Jack
Mar 07, 2020, 08:04 PM
Registered User

Thrust angle


Thanks for your reply. I've done the same with my Albatross as the manufacturer provided direction on thrust angle. Since this is a different configuration and I was unable find any information on it I started out straight. Have now shimmed the motor and looking for a chance to re-maiden.


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