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Search: Posts Made By: der_steuermann
Showing results 1 to 25 of 238
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Forum: Extreme Speed Prop Planes
05-04-2006, 07:12 PM
Replies: 35
Views: 3,953
Posted By der_steuermann

RE: Building a Custume Made Speed Plane

Glorfindel , your speed plane, equipped with the right engine, should be a real contender in the absolute first R/C speed league worldwide. Not much more to say here. [8D]

I’ll send you a PM...
Forum: Extreme Speed Prop Planes
05-04-2006, 04:32 PM
Replies: 35
Views: 3,953
Posted By der_steuermann

RE: Building a Custume Made Speed Plane

Guys, we don’t want to compare a sport engine design and rpm output with the most sophisticated engine design todays (integral piston liner, no inner bearing ring, double balanced crank and...
Forum: Extreme Speed Prop Planes
05-04-2006, 03:11 PM
Replies: 35
Views: 3,953
Posted By der_steuermann

RE: Building a Custume Made Speed Plane

Hi, if you don’t consider a DF engine for this speed project, this “all out speed plane” will not be an “all out speed plane” due to the fundamental lack of rpms.

So the only...
Forum: Glow Engines
04-02-2006, 06:51 AM
Replies: 3
Views: 792
Posted By der_steuermann

RE: How to retrofit a Ducted Fan Engine for Propeller Use

Hello,

you should ask in the "Extreme Speed Prop Planes" forum. These guys know their job.[sm=biggrin.gif]



;)
Forum: Glow Engines
03-29-2006, 04:57 AM
Replies: 3
Views: 680
Posted By der_steuermann

RE: exaust timing on os91vrdf ?header length?

Yes, that's correct.
Forum: Glow Engines
03-29-2006, 04:26 AM
Replies: 3
Views: 680
Posted By der_steuermann

RE: exaust timing on os91vrdf ?header length?

Hi Greg,

exhaust timing is 172 degrees.

For an in-flight rpm of 23K set the #1190 pipe at 30 cm, measured from glowplug to mid of the pipe belly.
Forum: Extreme Speed Prop Planes
02-03-2006, 12:21 PM
Replies: 14
Views: 1,895
Posted By der_steuermann

RE: .15 or .21 speed/sport engine

Yes indeed a fun project looking cool, but alas nothing for speed. This is basically a modified delta layout, very unsuited for speed - as well as all swept back designs (induced drag...).

Look...
Forum: Extreme Speed Prop Planes
02-03-2006, 10:20 AM
Replies: 14
Views: 1,895
Posted By der_steuermann

RE: .15 or .21 speed/sport engine

So, as a beginner a F5D plane would be the wrong choice - these are suited for the experienced pilots.

I think you have to define your target more precisely:

What is your maximum speed so...
Forum: Extreme Speed Prop Planes
02-03-2006, 07:10 AM
Replies: 14
Views: 1,895
Posted By der_steuermann

RE: .15 or .21 speed/sport engine

Hi gals;)

to make this converted car Nova .12 run 30 to 33000 rpm maximum you need a non-muffled pipe, a prop like 4.5*4.5" or 4*5 or 4*6 and a venturi speed carb with 5.5 mm bore. No more rpm...
Forum: Extreme Speed Prop Planes
01-30-2006, 04:38 PM
Replies: 72
Views: 7,274
Posted By der_steuermann

RE: have you busted 200mph???

Hello King & Dave,

I would like to refer to combatpiggs speed plane project which does serve as a promising guideline for competitive speed for any .15, .21 .40 or bigger sized project:

...
Forum: Extreme Speed Prop Planes
01-30-2006, 04:18 PM
Replies: 72
Views: 7,274
Posted By der_steuermann

RE: have you busted 200mph???

Hello to all delta design lovers,

please don’t rack your brains about the question:

“Why is my delta not as fast as I expected?”



Again, this Q already has been answered...
Forum: Extreme Speed Prop Planes
01-30-2006, 04:03 PM
Replies: 72
Views: 7,274
Posted By der_steuermann

RE: have you busted 200mph???

Hi cobratraxxas69,

modern F3D FAI planes consistently run about 210 mph (averaged) during a pylon race.
Forum: Extreme Speed Prop Planes
01-30-2006, 04:00 PM
Replies: 72
Views: 7,274
Posted By der_steuermann

RE: have you busted 200mph???

Hello MJD

I guess we'll see something like this during the next German Speed-Cup [sm=bananahead.gif]

Hold the line...
Forum: Extreme Speed Prop Planes
01-30-2006, 01:14 PM
Replies: 72
Views: 7,274
Posted By der_steuermann

RE: have you busted 200mph???

Yeah, back to the topic!


Below attached is a picture of a “pure” speed airframe, well suited for the MB .40 Profi FAI for instance…

BTW, alas not commercially available.
Forum: Extreme Speed Prop Planes
01-30-2006, 09:10 AM
Replies: 72
Views: 7,274
Posted By der_steuermann

RE: have you busted 200mph???

Hello Ed,

I would like to agree. The so called “boogie-board” has little to do with serious speed design.

In the past I myself gave lotta tips to the “extreme speed folks” in this...
Forum: Extreme Speed Prop Planes
01-29-2006, 04:59 PM
Replies: 72
Views: 7,274
Posted By der_steuermann

RE: have you busted 200mph???

Please look at this very promising project by combatpigg :

http://www.rcuniverse.com/forum/m_2303195/mpage_1/key_BUILD%2CSPEED%2CPLANE/tm.htm
Forum: Extreme Speed Prop Planes
01-29-2006, 04:57 PM
Replies: 72
Views: 7,274
Posted By der_steuermann

RE: have you busted 200mph???

Yep – with a small engine (modified .21) + correct sized CF prop

Do we need engines with lotta cubic inches and HP for our 200 mph target, or is it more a matter of sophisticated aerodynamics?...
Forum: Extreme Speed Prop Planes
12-31-2004, 03:30 PM
Replies: 178
Views: 31,859
Posted By der_steuermann

RE: HEY! LET'S BUILD A SPEED PLANE!!!

You're wrong James. Combatpigg has much much background knowledge [sm=thumbup.gif] - believe me he just simulates from time to time :)



Have to leave now - HAPPY NEW YEAR!
Forum: Extreme Speed Prop Planes
12-31-2004, 03:25 PM
Replies: 178
Views: 31,859
Posted By der_steuermann

RE: HEY! LET'S BUILD A SPEED PLANE!!!

Supercool makes such CF integral spinners - sure exotic!

http://www.supercoolprops.com/images/Turbo2.jpg
Forum: Extreme Speed Prop Planes
12-31-2004, 03:24 PM
Replies: 178
Views: 31,859
Posted By der_steuermann

RE: HEY! LET'S BUILD A SPEED PLANE!!!

Hi Rude!

So let’s talk about the “INTEGRAL SPINNER“

There’s no real alternative to these multi-part spinners when entering 20K using 1.5“ and bigger spinners. So it’s not...
Forum: Extreme Speed Prop Planes
12-31-2004, 09:38 AM
Replies: 178
Views: 31,859
Posted By der_steuermann

RE: HEY! LET'S BUILD A SPEED PLANE!!!

Because we're talking 'bout serious speed associated with this custom project this is a good occasion to list all manufactures/distributors of well suited .40 pylon engines currently available.

...
Forum: Extreme Speed Prop Planes
12-31-2004, 08:12 AM
Replies: 13
Views: 4,732
Posted By der_steuermann

RE: HB 20 Racing engine??

OK, this is the 'normal' HB engine. 70s engine technology. Only little if not suited for speed application (timing + porting too tame). [:'(]

http://www.mecoa.com/hb/index.htm

Hope this...
Forum: Extreme Speed Prop Planes
12-31-2004, 06:19 AM
Replies: 13
Views: 4,732
Posted By der_steuermann

RE: HB 20 Racing engine??

Well if the cylinder case and head is not square it is definitely no stock GRAND PRIX engine - maybe modded to safe weight...

You should post a jpg-pic before buying something unknown. Just clic...
Forum: Extreme Speed Prop Planes
12-31-2004, 03:45 AM
Replies: 13
Views: 4,732
Posted By der_steuermann

RE: HB 20 Racing engine??

Here's a pic of the ‘vintage’ 1986 HB.21 Grand Prix engine (Helmut Bernhard Feinmechanik ). It’s a good performer and will turn up to 26K reliably. The price was about 150 bucks. But spare...
Forum: Extreme Speed Prop Planes
12-30-2004, 02:55 AM
Replies: 178
Views: 31,859
Posted By der_steuermann

RE: HEY! LET'S BUILD A SPEED PLANE!!!

Hi CP,

the size of the fin is fine.

The fin & stab are also 'begging' for nice fillets :)

Thus, as all the speed freaks reading this thread do realize such a pure speed plane project...
Showing results 1 to 25 of 238
 
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