Radio Controlled Model For Rc Testing

RADIO-CONTROLLED FOR STALL/SPIN

MODEL

DESIGN AND TESTING

TECHNIQUES AIRCRAFT

EVALUATION

OF GENERAL-AVIATION

Sanger M. Burk,

Jr.

NASA Langley Research Center Hampton, Virginia 23665 and Calvin F. Wilson, Jr.

Piper Aircraft Corporation Lock Haven, Pennsylvania 17745

Presented

at the 1975 SAE National

Buslncss

Aircraft

Meeting N79-30 173

(NASA-TM-80510)RADIO-CCN_OELED DESIGN AND TESTING TECHNIQUES EVALUATION OF GENEEAI-AVI_ICN (NASA) 63 p HC A0q/MF A01

MODEL FOR STALL/SPIN AIRCRAFT CSCE 01C G3/05

Unclas 29095

v"-

7

Wichita, Kansas April 8-ii, 1975

RADIO-CONTROIAA,_D. FOR S'['AI,I,/SPIN

I_IOI)EI, I)I,:SICN

AND TESTI:NG

TECIINIQUES AIRCRAFT

EVAI,UATiON

OF CF,NEI_AL-AVIAT1ON Jr. Center 23665

Sangor M. Burk, NASALangl.ey Research ltampton, Vtrgini:_ and

Calvin F. Wilson, Jr. Piper Aircraft Corporation Lock I1aven, Pennsylwmia 17745

ABSTRACT The Center test tion tion movie moments conduct paper discusses tile research conducted at the NASA Langley model Research stall/spin Corporaconstrucand

to develop technique, in utLlizing techniques, camera of

a relatively and the

inexpensiveradio-controlled of the Piper

operational

experiences Included

Aircraft of model

the

technique.

is a discussion system, are cost data

spin-recovery system. scaling and of

parachute Also engine of the

recording

system,

tracking inertia,

discussed thrust, results

a method and time

of measuring required the to tests.

a program,

examples

obtained

fromflight

RADIO-CONTROI,I.ED FOR .S[AI,L/St
tit _ _

MODEL DESICN OF

AND TESTINC GENERAL-AVIATION Jr. Center 23665

TECtIN] QUES AIRCRAFT

IN EVAI,UAT[ON Sanger NASA Langley Hampton,

M. Burk, Research Virginia and

Calvin F. Wilson, Jr. Piper Aircraft Corporation Lock Haven, Pennsylvania 17745

INTRODUCT Two cussed results Research which

[ON previous papers presented at pastSAE and Business presented by on the the Aircraft some NASA part meetings spin-tunnel Langley of the of program the dis-

the NASA (1,2) Center with .

St..l!/Spj.n_Research The and present the Piper paper

Program

is a joint

paper

Aircraft model

Corporation testing

deals

radio-controlled of

for. the aircraft. was

evaluation

stall/spin The conduct tics, riser niquespin

characteristics radio-controlled

general-aviarion testing developed the proper

model entry, of

technique spin size and

developed recovery

by NASA

to

research i.uclud[ng length, that

on

spin

spin

characterisand techstal.I/

a definition to develop

spin-recovery model

parachute testing the

and

a low-cost

radio-controlled could des_g::.technique recovery was utilize

F, eneral-aviation of

mantzfacture-rs during testing :;pin, and This

to ewlluate

characterist[cs The

airplanes model

radio-controlled _;pin entry,

utilized

by

Piper light

to twinit

explore engine

developed

techniques was

of a used

alrplane

configuration.

testing

technique

because

Number:_

in parentheseudesignate

References

at

end

eL7 paper.

r,-lOO14

offered on the

an spin

effective,

low-cost, of

low-risk

technique airplane obtained of

for in by

exploratory the both

research stage. Piper

characteristics will discuss

a particular results utilization paper

development NASA and

This with regard

paper to

recent and in the

the developmentIncluded

tile radio-control of a data

model consysinertia, a pro-

testing struction tem, the gram,

technique. technique, camera of the

are

discussions system, of

the model recording of

a spin-recovery tracking engine of system, the

parachute a method cost and from

a movie scaling and

measuring required flight

moments

thrust,

time the

to conduct tests....