This in Swedish

 

 

1963-2043?

Hello and welcome to me!
 I  live in Sweden at the housing area Durrnäs in "the municipality and populated area (the town of) Piteå at Norrbotten (BD county). The municipality has 41859 inhabitant (1997), in four congregations".   Source: Bra böcker´s lexikon 2000

My sister Helena live in Umeå and is from Piteå. My mother Mirjam lived in Ålund and was from Örträsk. My father Curt-Ove lived in Piteå and was from Luleå.

I work as a System Technician and/or Electrical Mechanic below division system technique at the paper mill Smurfit Kappa Kraftliner.

"Construction of a model offers the technical interested a broad sphere of activities. Construction of a model offers, as scarcely anybody another leisure occupation, a combination of technique and electronic with connection to competition".   Source: Graupner

Why does an aeroplane "fly"? It's the same as "to jump from one ice floe to another, there you take take-off from successively new volume of water and ice, these of whom is accelerates downwards". An aeroplane fly as a result of that the wing successively accelerate downwards an air mass. An air mass which consists of the volume 1000 cu.m. air, containing the air mass 1250 kg at the sea level. The simple and a correct explanation physical of aerodynamic lift can be found in the article Aerodynamic lift? Explain rather with ice floe yet Bernoulli!, reproduced with permission of the writer of the article Martin Ingelman-Sundberg and the flight journal MACH.  

RCFS 2001, Radio Controlled Airplane & Helicopter Simulator. Dave Brown Products, Inc. & Tim Gleason. 

 

The radio transmitter          The radio receiver in an sailplane

The radio transmitter: 26.825 MHz, AM, at most 7 channels, about 1 W output power (in the antenna), narrow bandwidth, toroidal cores in the HF-circuits, built-in standing wave ratio-meter (SWR-meter), three-stage HF-part, modulation in the power-amplifier stage, charge electronics with light-emitting diode etc...

... the radio receiver: The weight 40 g and the format 40x53x17 mm including contact don for seven servo and current supply.   Source: Inge Stendahl, Transfunk, and Christer Svensson, Radio & Television Bygg Själv, nr 5, 1979, s 5-14...

... but the dream is the radio control- and telemetry-system MULTIPLEX PROFI TX 12 M-LINK FHSS 2,4 GHz transmitter...

MULTIPLEX PROFI TX 12 M-LINK FHSS 2,4 GHz transmitter

... and MULTIPLEX RX-12-DR compact M-LINK FHSS 2.4 GHz receiver...

MULTIPLEX RX-12-DR compact M-LINK FHSS 2.4 GHz receiver

Weight: 18.5 g  

... but then I lose the radio technical structure inductances, capacitances, resistors, diodes, transistors, ic etc that get the function radio control or information transmission...... but then I lose the radio technical structure inductances, capacitances, resistors, diodes, transistors, ic etc that get the function radio control or information transmission...

 

 

 

Wish list, engine´s:

 

SAITO FA-30S(H)   SAITO FA-40a       

         

 

 

 

ENGINE DATA
Items   Disp. Bore Stroke Practical range  Weight      Prop        Power Price Thrust         Fuel consumption,
        (cc)  (mm) (mm)   (r.p.m)          (g)         (in)        (HP)  (SEK) (N)            max, ca, (cc/min)
 
GT33    32,98 36,0 32,4   1 800 -  8 000   984+160+105 18x10-20x10 3,85   3935  -              -
GT22    22    32   27,5   1 800 -  9 000   762+133+105 16x8-17x8   2,66   3820  -              -
FG-14C  13,47 29,0 20,4   1 900 -  9 500   536+51+110  13x8–14x6   1,2    3750  -              8
FA-40a   6,61 22   17,4   2 000 - 11 000   300         10½x6-11x6  0,65   1897  14, APC 11x5   -
FA-30H   5,0  20   16     2 200 - 12 000   260         9x6-10x6    0,5    1799  -              10
 

 

 

MODEL AIRPLANE NEWS, january 2006 (Model Airplane News, september 1991)

Readers´ soapbox

 

Joe Beshar, Oradell, NJ:

 

Thoughts about thrust

The secret to choosing a motor

 

Basic model performance

  Factor   Expected performance

    0,25     Will have to hand-launch

    0,33     Short takeoff

    0,50     Instant takeoff

    1,00 +   Straight-up climb

 

Factor is the thrust divided by plane´s total weight.

 

 

 

Wish list, model aeroplane:

 

The beginners´ model or teach you to fly with Lajban.
A photograph by Peter Liander.

The beginners model or teach you to fly with Lajban.   Span: 1800 mm. Engine: 3.46 - 7.45 cc. Weight: 1.5 kg (1.5 cc) - 1.9 kg (5 cc). Wing area: 37.8 dm²..   "Lajban is one type of beginners model that it is build on the principle of a free flying model".   Source: Bosse Gårdstad.

 

Scale Floats EDO Mark II,   Lundqvist, Pär,   RC-sjöflyg - "På riktigt" (RC float-flying - "Do it right"), Allt om Hobby 3/80 s 32-33,   Så här sjöflyger man på riktigt (Like this you float-flying rightly), Allt om Hobby 4/80 s 28-29.
 
 
 

Boxer - nearly a Bulldog
A photograph by Pär Lundqvist.

The semi-scale model Boxer, span: 1406 mm, engine: 3.5 - 6.5 cc, weight: 1.97 - 2.33 kg, wing area: 35.8 dm².  "Slow, scale real aerobatics RC-flying was the basic demand when boxer was constructed. Functionally slotted flaps for slow start/landing belonged to the demands as well. That these was so effectively that one can nearest 'dive land' and still get short landing run with feathery touchdown - yes, I get that into the bargain actually".   Source: Pär Lundqvist. http://www.per-lundqvist.se/modellflygverkstaden/

 

 

Pär Lundqvist´s aero plane Swedish air force trainer sk 61 Bulldog in scale 1:8.

Pär Lundqvist´s aero plane Swedish air force trainer sk 61 Bulldog in scale 1:8..

 

 

A perfect modelmodel plane for scale flying as real aeroplane does...
---
The conclusion is therefore obvious, if you choose to make a model of a real aircraft you get as a result a "real" flying
model.

----

 

 

The scale model Sk 61 BULLDOG               Data for scale
                                 1:1    1:4    1:5    1:6    1:7    1:8
 
Span (m):......................  10,6   2,65   2,12   1,77   1,51   1,33 
Length (m):...................    7,09  1,77   1,42   1,18   1,01   0,89
Wing garea(m² ²dm²):...........  12    75,13  48,08  33,39  24,53  18,78
Weigh taerobatics(kg):.........1015     8,81   4,35   2,47   1,54   1,03
Maximum take-offf weight(kg)*: 1065     9,12   4,50   2,55   1,59   1,06
Wingg loading(kg/m² ²g/dm²):... 844   117,28  90,57  74,09  62,96  54,96
Winggloadingg(kg/m² ²g/dm²)*:   886   121,38  93,56  76,43  64,87  56,57
Power plant (hp):.............. 200     1,56   0,72   0,38   0,22   0,14
Maximum speed (km/t):.........  241    85,21  76,21  69,57  64,41  60,25
Cruising speed (km/t):........  220    77,78  69,57  63,51  58,80  55,00
Stall speed (km/t):...........   98    34,65  30,99  28,29  26,19  24,50
 

Source: Pär Lundqvist. http://www.per-lundqvist.se/modellflygverkstaden/

 

 

Dart Kitten - in 1/4-scale

A photograph by Pär Lundqvist..

 
                        Fullscale                         Scale 1:4                    Scale 1:8

Wing span: ............ 9735 mm ......................... 2440 mm .................... 1216 mm
Wing area: ............ 11,98 ......................... 74,9 dm².................... 18,71 d
EmptyEmpty weight:..... 229,97 kg ....................... 3593 g ..................... 449 g
Maximum takeoff weight: 339,7 kg ........................ 5307 g (Pär´s model: 4675 g) 663 g
Wing loading: ......... 28 kg/......................... 70,8 g/d(62,4 g/d)..... 35,4 g/d
Cruising speed: ....... 134 km/h ........................ 33 km/h .................... 16,7 km/h
Climbing speed: ....... 185 m/min ....................... 46 m/min ................... 23 m/min
Takeoff distance: ..... 73 m ............................ 18 m ....................... 9 m
Powerplant: ........... one 27-kW (36-hp) Aeronca J.A.P.
                        J-99J flat-two piston engine      about 0,40 hp .............. -

 

Dart Kitten was constructed 1937. The goal was an easy flown and small aeroplane and one succeed every bit as good.   Source: Pär Lundqvist.. http://www.per-lundqvist.se/modellflygverkstaden/

 

 

Eastbourne monoplane 1911, the construction year 1911.
A photograph by Pär Lundqvist.

Eastbourne monoplane 1911, the construction year 1911. Scale model about 1:5, span: 1800 mm, weight ca: 2.3 kg, wing area: 64 dm², maximumm², maximumengine: 6.5 cc (~0.85 kW/1.15 hp/?? N).   "Eastbourne monoplane since 1911, is a relative easy built scale model and hence suitable for the minor skilled builder. In addition, the model is slow flying and therefore also easy flown".   Source: Pär Lundqvist.engine: 6.5 cc (~0.85 kW/1.15 hp/?? N).   "Eastbourne monoplane since 1911, is a relative easy built scale model and hence suitable for the minor skilled builder. In addition, the model is slow flying and therefore also easy flown".   Source: Pär Lundqvist. http://www.per-lundqvist.se/modellflygverkstaden/



Peter.Adolfsson@sPAMebox.tninet.se (remove sPAM)

2017-06-03 18.55

Adieu?