By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by CML

New EDF Mini Jets- Sabre & MiG15 RCM&E 2018 Special

All Topics | Latest Posts

Search for:  in Thread Title in  
Nigel R26/09/2018 10:35:49
avatar
2985 forum posts
471 photos

trebor, don't know if you've seen this, for balancing:

https://www.rcgroups.com/forums/showthread.php?1267814-How-to-dynamically-balance-EDF-unit-with-a-cell-phone

Devcon126/09/2018 10:42:18
avatar
1361 forum posts
476 photos

If it helps I've gone for the 11 blade FMS unit, rightly or wrongly.

Although slightly heavier I think I can shave the odd gram from other components to manage the weight, I've also assumed the logic that I can achieve similar power levels to the recommended unit but at lower throttle positions whilst that extra little bit of grunt when needed.

I'm curious as to how nice an 11 blade unit sounds.

Nigel R26/09/2018 11:15:39
avatar
2985 forum posts
471 photos

There's also the WeMoTec Micro if you're feeling a bit flush.

ken anderson.27/09/2018 14:09:32
avatar
8429 forum posts
772 photos

ordered the sabre kit on Monday...delivered today(thurs)..14.00... that's service for you......thanks to Slec/Tony nijhuis…. ive also run up the hobbyking 50mm edf …..no problems either…..job's a goodin …

ken anderson...ne...1...… sabre dept.

Tim C27/09/2018 14:48:54
avatar
484 forum posts
253 photos

d1a49596-5773-4fa4-b20a-028b45457cc2.jpeg Well my FMS 11 blade 50mm edf fan turned up today from Banggood, the AEO unit was out of stock. I ran a quick bench test, 73g out the box, runs very smooth and surprisingly quiet, on. 2200 3s 320 Watts on the meter a little over 30amp on full chat. Holding it over the kitchen scales showed in xs of 700g of thrust, a crude measure but interesting, will be interested to see the equiv measure once installed

ken anderson.27/09/2018 14:55:11
avatar
8429 forum posts
772 photos

if you can get 700g of thrust in the model...it will go like a Goodin for sure.

ken anderson..ne...1...….700G dept.

trebor27/09/2018 16:31:32
avatar
1905 forum posts
214 photos
Posted by ken anderson. on 27/09/2018 14:09:32:

ordered the sabre kit on Monday...delivered today(thurs)..14.00... that's service for you......thanks to Slec/Tony nijhuis…. ive also run up the hobbyking 50mm edf …..no problems either…..job's a goodin …

ken anderson...ne...1...… sabre dept.

Ken, every time I look on e Slec site I can't find any sabre kit where's it hiding ? dont know

ken anderson.27/09/2018 16:46:29
avatar
8429 forum posts
772 photos

hello Trebor, you need to go on tony nijhuis site and order it via there.....and it looks as though its put together and dispatched by slec…

 

ken anderson...ne...1....EDF dept.

Edited By ken anderson. on 27/09/2018 16:47:31

trebor27/09/2018 16:53:24
avatar
1905 forum posts
214 photos

I would never have found it yes

trebor27/09/2018 16:59:54
avatar
1905 forum posts
214 photos

Which one, Sabre or Mig crying undecided.

Devcon127/09/2018 18:44:34
avatar
1361 forum posts
476 photos

trebor... both.devil

On a separate note an EDF power source is completely new to me. I think I'm happy with the normal questions regarding inlet and exhaust cross sectional area but curious if I should remove the curved front inlet shroud from the fan unit and mate the the internal diameter of the duct directly to an inlet tube.

I say this as I read somewhere that the standard curved inlet shroud is only needed if the unit is mounted either externally or directly at the front of a model.

Link attached to an image of what looks like a shroud minus the front piece.

Am I overthinking this ?

Edited By Devcon1 on 27/09/2018 18:49:27

Steven Shaw27/09/2018 21:09:29
avatar
311 forum posts
165 photos

Is there room for an inlet duct with the battery and an ESC under the pilot? I understand that's why the cheater holes are required, because of the poor airflow around those componrents.

Edited By Steven Shaw on 27/09/2018 21:34:36

Devcon127/09/2018 21:34:45
avatar
1361 forum posts
476 photos

Good point Steven, I should have added I plan to try and position the Rx, ESC and Battery into a built up/hollowed drop tank which Tony Nijhuis points out makes a good launch hand hold. I'm hoping to utilise this space to enable a clean inlet run/tube.

Worst case scenario I could enlarge the plan by a little.

Ron Gray27/09/2018 21:57:14
1432 forum posts
359 photos

@Devcon - I think that you are overthinking it! TN has written that the bell mouth effectively does away with the need for an inlet duct and that the 50mm EDF unit provides plenty of oomph for these models.

Devcon127/09/2018 22:37:26
avatar
1361 forum posts
476 photos

You are correct. I will keep it simple. Too much time thinking...😁

ken anderson.28/09/2018 08:12:05
avatar
8429 forum posts
772 photos

lots of model edf's use cheater hole's,scoops to feed the fan with air...

ken anderson..ne..1.... feed the fan dept..

Nigel R28/09/2018 08:57:35
avatar
2985 forum posts
471 photos

Is a nice smooth inlet duct better than the bell mouth intake?

Its clearly more difficult to achieve (especially on something this size).

Ron Gray28/09/2018 09:04:14
1432 forum posts
359 photos

A nice smooth, purpose built inlet duct is more energy efficient than the bell mouth, but the extra weight etc building one into a balsa built model, rather than a composite one which can be moulded, negates the ‘extra’.

ken anderson.02/10/2018 09:32:53
avatar
8429 forum posts
772 photos

up here in ne...1..land we've started the Tony Nijhuis EDF sabre...…(project X)...

silver sabre.jpg

sabre1.jpg

sabre.jpg

ken anderson...ne..1....area 51 dept.

Nigel R02/10/2018 09:37:41
avatar
2985 forum posts
471 photos

Looks remarkably realistic ken - top job! yes

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of RCM&E? Use our magazine locator link to find your nearest stockist!

Find RCM&E! 

Support Our Partners
CML
Addlestone Models
Gliders Distribution
Wings & Wheels 2019
Pepe Aircraft
Cambridge Gliding Club
Slec
electricwingman 2017
Advertise With Us
Sarik
Latest "For Sale" Ads
New Poll - Sticky situations...
Q: How often - when using superglue - do you end up with it on your fingers?

 Every time
 Occasionally
 Sometimes
 Rarely
 Never
 Wear rubber gloves

Latest Reviews
Digital Back Issues

RCM&E Digital Back Issues

Contact us

Contact us