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

Galaxy/Pegasus Magician - Lotus inspired extra lightweight Mod's

All Topics | Latest Posts

Search for:  in Thread Title in  
Tony H11/07/2012 05:08:12
avatar
870 forum posts
242 photos

Hi Guys,

It begins here, I bought the Magician from Pegasus Models and have been thinking about what I could do with it. I originally thought I would build it as standard using a SC52, after taking lot's of advice from the forum and reading Lee's review, I have decided to take the Colin Chapman (Lotus) aproach to the build "to get better performance build in lightness"

So I have decided to go with the SC36 (same weight as a .25), I'm using three Mini 26g Digital Servo's (Aileron,Elevator,Rudder) and a 12g MG Analog throttle Servo (this should be less than half the weight of 4x Std Servo's). I am also ditching the Nimh Rx in favor of a much lighter Life Rx 1100mah battery (less than half the weight of the Nimh). I'm using a 7oz fuel tank. I am also going to cut out 3-4 3inch holes through each TE part of the main wing and some 1-2inch Holes on the tail and down the fuselage sides (hopefully not sacrificing too much strengh), I'll also carve about 40-50% of the foam out of the Top deck. Hopefully all of this combined will save me lot's of weight, I'm hoping the AUW will be between 3.5-4Lbs

The Magician will be finished using Solarfilm in Lotus 7 Colours Dark Green and Yellow with a Yellow nose and Lotus Decals. I decided to build the airframe with the Elevator and Rudder Servo's enclosed hopefully around half way down to the tail (direct coupled) and use the original centre servo for the Ailerons to protect all the servo's from engine oil and to reduce the drain on the Rx Batt using 4 rather than 5 servos.

I will update with photo's soon, so far I have only spray painted the Nose (Cowl) Yellow as Specta paint takes weeks to be fully cured. I will be glass clothing the inside of the ABS Cowl as this has proven to be very strong on my Wizard.

Any thoughts will be most welcome.

Edited By Tony H on 11/07/2012 05:09:23

Edited By Tony H on 11/07/2012 05:31:21

Edited By Tony H on 11/07/2012 05:32:01

Concorde Speedbird11/07/2012 07:13:00
avatar
2734 forum posts
650 photos

Lots of weight saving! If you can get it down to 4 lbs then the 36 will fly it brilliantly, as long as the wing section is not too thick. I like the colour scheme, should look a bit like this...

Different angle

Yep, that's Lotus green and yellow! The green is Solarfilm polyester covering.

CS

Tony H11/07/2012 15:56:25
avatar
870 forum posts
242 photos

Here is what you get in the box (not including the ASP36 engine), I changed the tank for the 7oz as the 6oz one which comes with it I used in my Sig Wonder instead.

What you get.jpg
Includes full sized plans, tank, hardware bag, U/C, Engine mount and Glassfibre wing joining strip. You'll need Covering, Wheels (why aren't they incuded?), Wheel Collets, Spinner (why is it not included?), Engine and Radio setup.
Instructions.jpg
Also notice on the (adequate) instructions it says for 30-40 sized ic engines so my modern 36 should be spot on!
Tony H11/07/2012 16:16:22
avatar
870 forum posts
242 photos

Here's some inspirational Lotus paint schemes.

lotus 7.jpg

lotus-indy-02.jpg

 

lotus-lotus-f1-race-car.jpg

 

1777601.jpg

 

 

Edited By Steve Hargreaves - Moderator on 12/07/2012 16:01:20

Tony H11/07/2012 16:17:59
avatar
870 forum posts
242 photos

I think maybe I should have gone a shade lighter with the Yellow Solar Film and paint

Concorde Speedbird11/07/2012 16:37:48
avatar
2734 forum posts
650 photos

I like the fact that wheels are not included! This is because you can choose the size to suit yourself, so it is good for if (like me) you fly off a rough strip. You can also get yellow centred ones to match the colour scheme if you want!

This looks like a nice kit. 30-40 was more of the engine size I expected, so 36 will fly it brilliantly. A 45 four stroke would be my personal choice. In fact, I may get one (from Galaxy if I can, from Pegasus if not) for my Dad (birthday). Hmmm, decisions.

CS

Tony H11/07/2012 16:41:58
avatar
870 forum posts
242 photos

True about the wheels depending on your strip. I will spray my wheel hubs yellow i think. A 45 four stroke would be a fair bit heavier and a little hard to come by unless second hand I think.

Concorde Speedbird11/07/2012 16:45:28
avatar
2734 forum posts
650 photos

Got a Saito 45s! Not too heavy, I reckon it would be alright. Plenty of power.

CS

Tony H11/07/2012 16:49:00
avatar
870 forum posts
242 photos

I'm sure it would be fine, Saito's are fairly pricey so I discount them

Concorde Speedbird11/07/2012 16:55:56
avatar
2734 forum posts
650 photos

I like Saitos, they run very well (and they sound nice!) I don't mind saving up a bit longer to get a more expensive engine, and that Saito was a bargain at a show, so Dad snapped it up! FA62A going on the Domino (Ebay buy) and after some bench running that was great!

Hmm, Magician for Dad and his Saito? Decisions. See how your build starts off first.

CS

Tony H11/07/2012 22:28:02
avatar
870 forum posts
242 photos

I'm also going to include full Telemetry, LiFe RX Bat Volts, RPM, GPS, Engine Temp and Fuel level. This will fall in line more with a Lotus F1 Car with all the Telemetry Gubbins, granted a lot cheaper and less Hi-tech.

Concorde Speedbird11/07/2012 22:36:09
avatar
2734 forum posts
650 photos

This will be the most technologically advanced Magician ever! Look forward to the start of the build.

CS

Tony H11/07/2012 23:02:18
avatar
870 forum posts
242 photos

I'm hoping to start it this weekend, but I still have a couple of planes that need a little attention first ie The Bi Fly 25

One day this summer I might actually be able to fly!!

Edited By Tony H on 11/07/2012 23:02:53

Tony H11/07/2012 23:06:05
avatar
870 forum posts
242 photos

The weight of the LiFe Rx batt is 65g and the Weight of the NMIH Rx is 95g a good 30g saving there. I reckon I will be able to save almost a lb in weight around 12oz in total.

Servos= 110g approx saved

Rx Batt = 30g saved

Airframe = 140g saved (hopefully)

Engine = 70g saved (over a 40 sized)

Total = 350g (11.83oz)

 

Edited By Tony H on 11/07/2012 23:13:37

Concorde Speedbird12/07/2012 07:52:55
avatar
2734 forum posts
650 photos

What is the weight of the standard built Magician, if it says in the manual?

I look foreard to seeing that Bi-fly fly, that will be a great little plane.

CS

PS. Am I invading the thread, since I am the only other user posting?

Tony H12/07/2012 15:34:41
avatar
870 forum posts
242 photos

I'm happy you are posting on my thread at least someone is! anyway the AUW weight of the original I believe is meant to be 4-5lbs but it doesn't say in the instructions. I think Lee's Smalley's review turned out at 5lbs using the heavy Irvine 46 and 5x Std Servos and a heavy 6v 2100 Nmih Rx Batt.

My Wizard (the smaller version) weighed in a around 3.25lbs from memory which for it's size was quite heavy using Std Servos, Nimh Rx and a 32 size engine. As it has a small wing area for the weight it takes a while to take off from my rough grass strip, it's almost on the edge of stalling when I have to pull up (not so bad with a head wind), but it does fly well once up to speed in the air.

You can Check out my old build blog on the Wizard if you like it's still on here from last year.

Edited By Tony H on 12/07/2012 15:37:54

Edited By Tony H on 12/07/2012 15:40:33

Edited By Tony H on 12/07/2012 15:43:20

Richard Wood12/07/2012 16:36:18
avatar
1096 forum posts
164 photos

Mine weighs 5lb with OS40LA, standard radio & a heavyweight Glosstex/

Solartex covering, so it can be made lighter even without taking a fretsaw

to it.

It'll be very interesting to see how much weight you save with the holey wings etc.

I'm building another Magician at the moment for electric power & the quality

of the kit is very good - great shame about the situation with Galaxy.

Do check the accuracy of the wing cut-outs in the fuse & doubler sides however.

They'll probably need trimming.

Tony H12/07/2012 16:42:46
avatar
870 forum posts
242 photos

Thanks Richard, I'll check the wing cut outs when I start the build this weekend (hopefully). I'm Supprised how heavy yours came out with the fairly light weight OS40LA, it must have been the Std Servos, Nimh Rx batt and Heavy Covering that made the difference.I reckon being realistic I should get it around the 4-4.5lbs mark any less will probably be a miracle!

Concorde Speedbird12/07/2012 17:59:39
avatar
2734 forum posts
650 photos

Our Mystic (the bigger one- 74 inch span) is around 8 pounds, which is light for a plane of that size. And that flies beautifully. Hmm, will a Magician be suitable for Dad. Hmmmmmm.

CS (Hmmmmmmmm!)

Tony H22/07/2012 18:48:30
avatar
870 forum posts
242 photos

 

Hi Again,

I've just made a start on the wings and I have found lightening them without weakening them too much quite tricky. I went in 13cm from the centre of the wing using a 64mm hole cutter to remove the foam and then on the last two down to a 50mm hole with 1" 1/4 gaps between them and 1"1/2 up from the TE. See Photo's

standard
 
lighter
 
Sadly after weighing the material removed I have only managed to save around 30g (1oz). Probably because the wing area isn't that large in the first place.
 

Edited By Tony H on 22/07/2012 18:50:22

All Topics | Latest Posts

Please login to post a reply.

Latest Forum Posts
Support Our Partners
CML
Sussex Model Centre
electricwingman 2017
Slec
Advertise With Us
Sarik
Has home isolation prompted you to start trad' building?
Q: The effects of Coronavirus

 Yes - for the first time
 Yes - but Ive bashed balsa before
 No - Ive existing projects on the bench
 No - Im strictly an ARTF person

Latest Reviews
Digital Back Issues

RCM&E Digital Back Issues

Contact us

Contact us

Magazine Locator

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

Find RCM&E!