Stamp on bladder..needle problem

Hi Mich,

I pulled out the needles on two good running backplate .049s

Definately sharper than your photo. Yours looks shorter.

Send me your address, can do the post office tomorrow...

Dave

Wow you are something else!!! PM inbound!

Hi Mich,
Message received.
Found a postage stamp backplate NV too. Looks sharper/pointier than your photo.
Both should work.
Should be there in a few days...
Dave

Mitch,
Where did you get the 90-degree barbs, and for what purpose are they originally marketed for?

I have an English-man's Radian with exposed fuel line (in the typical British fashion). I suspect the fuel line gets kinked making the turn from tank, and into the cowl while in flight. Your hard 90s may fix the suspected kinks.

944_Jim wrote:Mitch,
Where did you get the 90-degree barbs, and for what purpose are they originally marketed for?
..............

You might wander around here:
US Plastics tube fittings

944_Jim wrote:Mitch,
Where did you get the 90-degree barbs, and for what purpose are they originally marketed for?

I have an English-man's Radian with exposed fuel line (in the typical British fashion). I suspect the fuel line gets kinked making the turn from tank, and into the cowl while in flight. Your hard 90s may fix the suspected kinks.

Jim-take a look here....and they're in the US as well [makes life easy from your perspective...if not from mine...!]

https://www.fourmostproducts.com/our-products/fuel-fittings/

I can testify that they're very handy to have lying around in both the workshop and field box....especially the 'small fittings' set.......they also make a rather nice streamlined 049 engine mount as well... https://www.fourmostproducts.com/our-products/engine-mounts/

ChrisM
'ffkiwi'

Thanks for the link, Chris, I didn't know they still made the fuel cutoff module and streamlined .049 and .40 engine mounts. Back in the late 1960's to 1970's, full house radio systems were expensive. The fuel cutoff was useful for someone who had a one or 2 channel radio. By giving extreme control (down elevator or for single channel, extreme rudder opposite the one used for spiral diving), allowed one to cut flight short by cutting off the fuel supply on a non-R/C engine.

GallopingGhostler wrote:Thanks for the link, Chris, I didn't know they still made the fuel cutoff module and streamlined .049 and .40 engine mounts. Back in the late 1960's to 1970's, full house radio systems were expensive. The fuel cutoff was useful for someone who had a one or 2 channel radio. By giving extreme control (down elevator or for single channel, extreme rudder opposite the one used for spiral diving), allowed one to cut flight short by cutting off the fuel supply on a non-R/C engine.

Yes George-I recall that shutoff unit...never got around to purchasing one, as we found the same result could be achieved by a flexible fuel line, and a 'noose' round the fuel line attached to the elevator servo-which worked just as well....a bit like CL racers with their shutoffs-where a quick 'blip' of down elevator triggers the mechanical cutoff.  Of course now postage from the US to NZ is prohibitive...so many of the useful things have to wait until I feel like placing a sizable mass order with any particular supplier....     Rather ironically -slowly getting into a bit of peripheral CL late in life, I find I may now have to make some of those mechanical shutoffs...

ChrisM