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Search: Posts Made By: grumania
Showing results 1 to 25 of 302
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Forum: Electric RC Jets
11-22-2015, 10:22 PM
Replies: 9
Views: 4,415
Posted By grumania

I wonder how you achieve thrust levels around 4...

I wonder how you achieve thrust levels around 4 kg. My WEMOTEC 90 mm fan, that produces around 3,4 kg outside of the model, goes down to 1,9 kg inside the Vamp, with enlarged and rounded...
Forum: Electric RC Jets
10-23-2015, 08:03 AM
Replies: 9
Views: 4,415
Posted By grumania

Thanks for the info.I think I will try it first...

Thanks for the info.I think I will try it first with the fixed gear.
4 kilos of thrust on such a small plane ? Wow
Forum: Electric RC Jets
09-22-2015, 07:29 AM
Replies: 9
Views: 4,415
Posted By grumania

I have also contacted HK about the missing...

I have also contacted HK about the missing ducts.Very bad customer support - they wanted photos from me showing the missing parts.How can I photograph something that`s only shown in their own...
Forum: RC Jets
01-08-2015, 11:09 PM
Replies: 41
Views: 12,549
Posted By grumania

https://www.youtube.com/watch?v=sqs5jJ2FbWw

https://www.youtube.com/watch?v=sqs5jJ2FbWw
Forum: RC Jets
10-14-2014, 02:04 AM
Replies: 41
Views: 12,549
Posted By grumania

Like the full size aircraft ? Are you joking ? ...

Like the full size aircraft ? Are you joking ?
I said live hinges and that says all. A scale model at that size is absolutely impossible and does not even make sense.
Lift and drag is a totally...
Forum: RC Jets
10-14-2014, 12:12 AM
Replies: 41
Views: 12,549
Posted By grumania

Hi , BTW, the manual looks very good, but does...

Hi ,
BTW, the manual looks very good, but does the nose cone have to be made removeable?
It makes life easier, but it is an option and you can decide what you like.

Ailerons and Flaps are ready...
Forum: RC Jets
10-13-2014, 04:40 AM
Replies: 41
Views: 12,549
Posted By grumania

Hi Tommy, the model powered by a Jets Munt VT...

Hi Tommy,
the model powered by a Jets Munt VT 80 which is more than needed ! This engine is small and very light, also the most efficient turbine in the world.Thats why I chose this one. As you can...
Forum: RC Jets
10-11-2014, 02:13 AM
Replies: 41
Views: 12,549
Posted By grumania

Here`s a video of this years presentation at...

Here`s a video of this years presentation at JetPower
https://www.youtube.com/watch?v=4EohIw0TJx8
Ilja
Forum: RC Jets
10-11-2014, 01:49 AM
Replies: 175
Views: 29,278
Posted By grumania

Its been quiet about the 727 for a while as I had...

Its been quiet about the 727 for a while as I had to concentrate on other projects.The 727 has meanwhile flown on some events during the last year and some kits have been sold.Here is a video that...
Forum: RC Jets
05-15-2014, 09:17 AM
Replies: 22
Views: 3,936
Posted By grumania

Shocking news . A real icon and an idol for me....

Shocking news . A real icon and an idol for me. Like many others,I`ll never forget his matchless humor .
RIP Peter.
My condolence to the family and friends

Ilja
Grumania Jets
Forum: RC Jets
07-16-2013, 12:31 AM
Replies: 41
Views: 12,549
Posted By grumania

RE: Any word on the Grumania 727

I know, that was just a picture when I put it inide the nacelle for the first time.Also, it would need somekind of "spinner"
Ilja
Forum: RC Jets
07-15-2013, 09:30 PM
Replies: 41
Views: 12,549
Posted By grumania

RE: Any word on the Grumania 727

Hi Tommy,
I have already made some dummies for it , they even run when the engine sucks air through the nacelles ( the engine fairings supply the turbine with extra air ) .But the dummies are made...
Forum: RC Jets
07-15-2013, 10:22 AM
Replies: 41
Views: 12,549
Posted By grumania

RE: Any word on the Grumania 727

Hi there ,
some time ago I managed the maiden flight of my first 727. Having done that , I have finally managed to get a nice finish on the bird. According to my flight experience, I have updated...
Forum: RC Jets
03-24-2013, 11:06 PM
Replies: 41
Views: 12,549
Posted By grumania

RE: Any word on the Grumania 727

Nice elevator detail of the all composite elevator halves.Now I`m sure that it was a good decision to gor for scale hingeing instead of cheap life hinges.

Ilja
Forum: RC Jets
03-21-2013, 09:41 AM
Replies: 41
Views: 12,549
Posted By grumania

RE: Any word on the Grumania 727

Built from parts of the first batch of kits - after a week ( 6 days/2 hours each) it`s standing on its wheels.
Forward fuselage ( about one metre long) detachable, nose detachable, electric...
Forum: RC Jets
03-21-2013, 09:37 AM
Replies: 41
Views: 12,549
Posted By grumania

RE: Any word on the Grumania 727

Built from parts of the first batch of kits - after a week ( 6 days/2 hours each) it`s standing on its wheels.
Forward fuselage ( about one metre long) detachable, nose detachable, electric...
Forum: RC Jets
03-08-2013, 07:59 AM
Replies: 64
Views: 18,956
Posted By grumania

RE: New FEJ Vampire T11

Thank you for the kind words Mr. "bobg"

If I only had you here in the shop to help me making better kits


Hahahahahahahah

Ilja
Forum: RC Jets
08-24-2012, 08:12 AM
Replies: 26
Views: 5,186
Posted By grumania

RE: Airbus 310 test flight

The airfoil is not a NACA 4415.
I have made the wings, so only I know about the layout.
By the way, the A310 MRTT is something that Kranz never produced.

Ilja
Forum: RC Jets
08-24-2012, 07:02 AM
Replies: 26
Views: 5,186
Posted By grumania

RE: Airbus 310 test flight

I guess the Rauch airliners are 1/16, my Airbuses are 1/18
Ilja
Forum: RC Jets
08-24-2012, 12:59 AM
Replies: 26
Views: 5,186
Posted By grumania

RE: Airbus 310 test flight

Psssst - secret

Ilja
Forum: RC Jets
08-23-2012, 09:02 AM
Replies: 26
Views: 5,186
Posted By grumania

RE: Airbus 310 test flight

I have always shipped my kits world wide and make no exception on the airliners, but due to the size of the boxes it will be pricey.
The prices of the kits are not calculated yet, also not the...
Forum: RC Jets
08-23-2012, 07:20 AM
Replies: 26
Views: 5,186
Posted By grumania

RE: Airbus 310 test flight

You say huge ?
this is the smallest of the airbus line that I am making.I thought as a test bed, it would be better to start with something "small".

Ilja
Forum: RC Jets
08-23-2012, 06:31 AM
Replies: 26
Views: 5,186
Posted By grumania

Airbus 310 test flight

Here is the first flight of my Airbus A310 MRTT (multirole tanker /transporter) "August Euler" of German Luftwaffe :

http://www.youtube.com/watch?v=h1oPXBQmyj0

Ilja
Forum: RC Jets
07-16-2012, 09:45 AM
Replies: 32
Views: 5,934
Posted By grumania

RE: Lado e-doors - dimensions ??

The actuators are reliable as long as you order the right ones.For a jet retract I recommend the new BLACK series of the 666 actuators.These are stronger and feature a M4 thread which is needed on...
Forum: RC Jets
06-30-2012, 08:40 AM
Replies: 32
Views: 5,934
Posted By grumania

RE: Lado e-doors - dimensions ??

I know that the end point adjusting would be ideal, but remember this is an actuator with a motor, a gear and electronics that can only switch off when resistance rises above a particular level.
To...
Showing results 1 to 25 of 302
 
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