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Search: Posts Made By: marc sommer
Showing results 1 to 23 of 23
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Forum: Extreme Speed Prop Planes
12-14-2002, 07:54 PM
Replies: 48
Views: 9,936
Posted By marc sommer

Ripmax Rapier

rudders on the rapier make all the difference.On one of mine I stuck them together and put the fin upright.Trouble is you halve your fin area,indeed I flat spun the ac into the ground.Solution-scrap...
Forum: Extreme Speed Prop Planes
12-13-2002, 02:33 PM
Replies: 48
Views: 9,936
Posted By marc sommer

Ripmax Rapier

hi everybody,I have been using Rapiers for ages now.The latest one is a canard conversion using two st 51s in a push pull config.Others I have are twin and single engined plus df.The Rapier is a...
Forum: Extreme Speed Prop Planes
10-23-2002, 07:17 PM
Replies: 5
Views: 762
Posted By marc sommer

twin deltas

Phiily baby,yep,I played around with mid engine deltas last year.They are the obvious solution to virtually every issue using one or more engines,especially cg.Trouble is you lose a massive amount of...
Forum: Extreme Speed Prop Planes
10-11-2002, 06:37 PM
Replies: 5
Views: 762
Posted By marc sommer

twin deltas

How about this one then?Twin 53s,APCs,4 tanks,spring air retracts.Scarey performance out of my only side by side attempt.By the very nature of the engine position a lot of weight had to be added to...
Forum: Extreme Speed Prop Planes
10-10-2002, 03:12 PM
Replies: 4
Views: 634
Posted By marc sommer

twin deltas

Haven't been around the rcu for a while.Have been busy building some slightly different machines though.I would appreciate any comments regarding the picture as i don't seem to be able to get it the...
Forum: Extreme Speed Prop Planes
07-26-2002, 09:10 PM
Replies: 25
Views: 3,808
Posted By marc sommer

Laser Arrow Delta???

Sorry ,cant make this photo business work,got these pictures stored in this box computer thing,cant seem to drag them out of the computer to show you them.Working on it.Regards Marc Sommer
Forum: Extreme Speed Prop Planes
07-26-2002, 09:05 PM
Replies: 25
Views: 3,808
Posted By marc sommer

Laser Arrow on steroids

If anybody is interested,here is my first attempt at making something slightly different of the laser Arrow.The climb is awesome.As for the noise-well.
Forum: Extreme Speed Prop Planes
07-26-2002, 08:58 PM
Replies: 25
Views: 3,808
Posted By marc sommer

Laser Arrow on steroids

If anybody is interested,here is my first attempt at making something slightly different of the laser Arrow.The climb is awesome.As for the noise-well.
Forum: Aerodynamics
06-24-2002, 07:08 PM
Replies: 22
Views: 2,644
Posted By marc sommer

Balancing Props

Hi,folks.I am at my wits end trying to achieve correct balance on my props.Does anybody else find that a certain highly acclaimed 3 letter prop maker doesn't drill the holes in the center??? I use a...
Forum: Extreme Speed Prop Planes
06-24-2002, 06:53 PM
Replies: 25
Views: 3,808
Posted By marc sommer

Laser Arrow Delta???

Gentlemen,good evening(London time). I have been using the Laser Arrow in all sorts of configs ie fixed gear,no gear,multi engine push pull etc).Absolutely fantastic aeroplane apart from one nasty...
Forum: RC Boats General Discussion
06-11-2002, 08:25 PM
Replies: 1
Views: 729
Posted By marc sommer

Os 77 vrm

Yes,I posted the full question in the retrieval boat section-thanks phillybaby.Has anybody played around with an OS 77 vrm?. It's an out and out machine of yesteryear and,I have one in need of being...
Forum: RC Boats General Discussion
06-11-2002, 08:15 PM
Replies: 8
Views: 1,891
Posted By marc sommer

Retreival boat for float planes?

Phillybaby, thanks you're right.Bloody homemade beer i guess.Does that mean I've got to do it all over again or can i transpose it?
Forum: RC Boats General Discussion
06-11-2002, 07:39 PM
Replies: 8
Views: 1,891
Posted By marc sommer

OS 77 VRM

I have a Percasa torpedo boat.Up to now it has been running an Irvine 61 abc marine with tuned pipe(rossi).Let me qualify, the boat has integeral outriggers copied and transposed from an existing...
Forum: Extreme Speed Prop Planes
06-06-2002, 08:29 PM
Replies: 21
Views: 2,228
Posted By marc sommer

Diamond Dust Questions

Hello everybody.I'm trying to order a diamond dust and keep getting a delivery failure notification.Does anybody know another way of getting hold of them(by computer)??Regards Marc Sommer
Forum: Extreme Speed Prop Planes
06-05-2002, 09:11 PM
Replies: 44
Views: 5,658
Posted By marc sommer

here you go...fast prop planes...fill 'er up

Hi everybody.Love the chat on high speed machines.Have had two big failures with multi engine deltas recently.I have a single (.53 Rossi) powered Rapier with springair retracts that still is my...
Forum: Aerodynamics
06-02-2002, 09:35 PM
Replies: 11
Views: 1,467
Posted By marc sommer

fin area for deltas

Dear Phiilybaby,Please ,where do i obtain a diamond dust(I've heard it called a diamond lill) delta? is it a self build plan?,is it an artf?,where ,Please?What about the "outlaw"-same question...
Forum: O.S. Engines Support
06-02-2002, 09:21 PM
Replies: 4
Views: 1,004
Posted By marc sommer

os 91 fx

Dear AnnMarie,I take on board what you said about exhaust systems causing overheating problems ,as I said in my original thread, I use the standard exhaust on my OS 91 fx. I know now of two people...
Forum: Aerodynamics
06-01-2002, 06:41 PM
Replies: 31
Views: 4,141
Posted By marc sommer

Going really fast

Hi everybody,please put me out of my pathetic misery-WHERE ,OR FROM WHOM DOES ONE OBTAIN A DIAMOND DUST DELTA??????Kindest regards Marc Sommer
Forum: O.S. Engines Support
06-01-2002, 06:21 PM
Replies: 4
Views: 1,004
Posted By marc sommer

os 91 fx

dear AnnMarie,thankyou for your reply.By up at 45 degrees I mean its half way between fully upright and a true sidewinder.Th e cylinder is well clear of the cowling and sits in the full face of the...
Forum: O.S. Engines Support
05-24-2002, 02:23 PM
Replies: 4
Views: 1,004
Posted By marc sommer

os 91 fx

I can confirm that a 13x8 works well on a 91 fx.I use a standard muffler and 10% nitro.I see ,however that Larry in Denver has a problem with his fx-I have exactly the same.It runs very nicely at...
Forum: Extreme Speed Prop Planes
05-22-2002, 06:49 PM
Replies: 1
Views: 1,015
Posted By marc sommer

built up delta

Dear rsieminski (sorry,is that your first name?).I have a plan that may be just what you are looking for.It is a canard delta of 45 inch span I think and,uses .40 power. The claimed wingloading is 15...
Forum: Aerodynamics
05-17-2002, 08:56 PM
Replies: 31
Views: 4,141
Posted By marc sommer

Going really fast

Very interesting chat on deltas.I love them to bits and have long considered using a 90 vrdf.Its a big lump,similar performance can be achieved using far less brute power and,utilising a far more...
Forum: Aerodynamics
05-03-2002, 05:20 PM
Replies: 11
Views: 1,467
Posted By marc sommer

fin area for deltas

I have a side by side Rapier delta that uses two I rvine 46s.THis afternoon i crashed it on take off on its maiden flight.The damage is immense<due to its high weight and high lift off speed>but it...
Showing results 1 to 23 of 23


 
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